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This file contains information about GCC releases which has been generated
automatically from the online release notes. It covers releases of GCC
(and the former EGCS project) since EGCS 1.0, on the line of development
that led to GCC 3. For information on GCC 2.8.1 and older releases of GCC 2,
see ONEWS.
======================================================================
http://gcc.gnu.org/gcc-3.3/index.html
GCC 3.3 Release Series
June 28, 2004
The [1]GNU project and the GCC developers are pleased to announce the
release of GCC 3.3.4. This release was actually completed on May 31,
but various reasons delayed the actual announcement.
The GCC 3.3 release series includes numerous [2]new features,
improvements, bug fixes, and other changes, thanks to an [3]amazing
group of volunteers.
Release History
GCC 3.3.5
September 30, 2004
GCC 3.3.4
May 31, 2004
GCC 3.3.3
February 14, 2004 ([4]changes)
GCC 3.3.2
October 16, 2003 ([5]changes)
GCC 3.3.1
August 8, 2003 ([6]changes)
GCC 3.3
May 14, 2003 ([7]changes)
References and Acknowledgements
GCC used to stand for the GNU C Compiler, but since the compiler
supports several other languages aside from C, it now stands for the
GNU Compiler Collection.
A list of [8]successful builds is updated as new information becomes
available.
The GCC developers would like to thank the numerous people that have
contributed new features, improvements, bug fixes, and other changes
as well as test results to GCC. This [9]amazing group of volunteers is
what makes GCC successful.
For additional information about GCC please refer to the [10]GCC
project web site or contact the [11]GCC development mailing list.
To obtain GCC please use [12]our mirror sites, one of the [13]GNU
mirror sites, or [14]our CVS server.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [15]gnu@gnu.org. There
are also [16]other ways to contact the FSF.
These pages are maintained by [17]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [18]GCC manuals. If that fails, the
[19]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [20]gcc@gnu.org or
[21]gcc@gcc.gnu.org. All of our lists have [22]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2005-01-25 [23]Valid XHTML 1.0
References
1. http://www.gnu.org/
2. http://gcc.gnu.org/gcc-3.3/changes.html
3. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
4. http://gcc.gnu.org/gcc-3.3/changes.html#3.3.3
5. http://gcc.gnu.org/gcc-3.3/changes.html#3.3.2
6. http://gcc.gnu.org/gcc-3.3/changes.html#3.3.1
7. http://gcc.gnu.org/gcc-3.3/changes.html
8. http://gcc.gnu.org/gcc-3.3/buildstat.html
9. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
10. http://gcc.gnu.org/index.html
11. mailto:gcc@gcc.gnu.org
12. http://gcc.gnu.org/mirrors.html
13. http://www.gnu.org/order/ftp.html
14. http://gcc.gnu.org/cvs.html
15. mailto:gnu@gnu.org
16. http://www.gnu.org/home.html#ContactInfo
17. http://gcc.gnu.org/about.html
18. http://gcc.gnu.org/onlinedocs/
19. mailto:gcc-help@gcc.gnu.org
20. mailto:gcc@gnu.org
21. mailto:gcc@gcc.gnu.org
22. http://gcc.gnu.org/lists.html
23. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.3/changes.html
GCC 3.3 Release Series
Changes, New Features, and Fixes
The latest release in the 3.3 release series is [1]GCC 3.3.3.
Caveats
* The preprocessor no longer accepts multi-line string literals.
They were deprecated in 3.0, 3.1, and 3.2.
* The preprocessor no longer supports the -A- switch when appearing
alone. -A- followed by an assertion is still supported.
* Support for all the systems [2]obsoleted in GCC 3.1 has been
removed from GCC 3.3. See below for a [3]list of systems which are
obsoleted in this release.
* Checking for null format arguments has been decoupled from the
rest of the format checking mechanism. Programs which use the
format attribute may regain this functionality by using the new
[4]nonnull function attribute. Note that all functions for which
GCC has a built-in format attribute, an appropriate built-in
nonnull attribute is also applied.
* The DWARF (version 1) debugging format has been deprecated and
will be removed in a future version of GCC. Version 2 of the DWARF
debugging format will continue to be supported for the foreseeable
future.
* The C and Objective-C compilers no longer accept the "Naming
Types" extension (typedef foo = bar); it was already unavailable
in C++. Code which uses it will need to be changed to use the
"typeof" extension instead: typedef typeof(bar) foo. (We have
removed this extension without a period of deprecation because it
has caused the compiler to crash since version 3.0 and no one
noticed until very recently. Thus we conclude it is not in
widespread use.)
* The -traditional C compiler option has been removed. It was
deprecated in 3.1 and 3.2. (Traditional preprocessing remains
available.) The <varargs.h> header, used for writing variadic
functions in traditional C, still exists but will produce an error
message if used.
* GCC 3.3.1 automatically places zero-initialized variables in the
.bss section on some operating systems. Versions of GNU Emacs up
to (and including) 21.3 will not work correctly when using this
optimization; you can use -fno-zero-initialized-in-bss to disable
it.
General Optimizer Improvements
* A new scheme for accurately describing processor pipelines, the
[5]DFA scheduler, has been added.
* Pavel Nejedly, Charles University Prague, has contributed new file
format used by the edge coverage profiler (-fprofile-arcs).
The new format is robust and diagnoses common mistakes where
profiles from different versions (or compilations) of the program
are combined resulting in nonsensical profiles and slow code to
produced with profile feedback. Additionally this format allows
extra data to be gathered. Currently, overall statistics are
produced helping optimizers to identify hot spots of a program
globally replacing the old intra-procedural scheme and resulting
in better code. Note that the gcov tool from older GCC versions
will not be able to parse the profiles generated by GCC 3.3 and
vice versa.
* Jan Hubicka, SuSE Labs, has contributed a new superblock formation
pass enabled using -ftracer. This pass simplifies the control flow
of functions allowing other optimizations to do better job.
He also contributed the function reordering pass
(-freorder-functions) to optimize function placement using profile
feedback.
New Languages and Language specific improvements
C/ObjC/C++
* The preprocessor now accepts directives within macro arguments. It
processes them just as if they had not been within macro
arguments.
* The separate ISO and traditional preprocessors have been
completely removed. The front end handles either type of
preprocessed output if necessary.
* In C99 mode preprocessor arithmetic is done in the precision of
the target's intmax_t, as required by that standard.
* The preprocessor can now copy comments inside macros to the output
file when the macro is expanded. This feature, enabled using the
-CC option, is intended for use by applications which place
metadata or directives inside comments, such as lint.
* The method of constructing the list of directories to be searched
for header files has been revised. If a directory named by a -I
option is a standard system include directory, the option is
ignored to ensure that the default search order for system
directories and the special treatment of system header files are
not defeated.
* A few more [6]ISO C99 features now work correctly.
* A new function attribute, nonnull, has been added which allows
pointer arguments to functions to be specified as requiring a
non-null value. The compiler currently uses this information to
issue a warning when it detects a null value passed in such an
argument slot.
* A new type attribute, may_alias, has been added. Accesses to
objects with types with this attribute are not subjected to
type-based alias analysis, but are instead assumed to be able to
alias any other type of objects, just like the char type.
C++
* Type based alias analysis has been implemented for C++ aggregate
types.
Objective-C
* Generate an error if Objective-C objects are passed by value in
function and method calls.
* When -Wselector is used, check the whole list of selectors at the
end of compilation, and emit a warning if a @selector() is not
known.
* Define __NEXT_RUNTIME__ when compiling for the NeXT runtime.
* No longer need to include objc/objc-class.h to compile self calls
in class methods (NeXT runtime only).
* New -Wundeclared-selector option.
* Removed selector bloating which was causing object files to be 10%
bigger on average (GNU runtime only).
* Using at run time @protocol() objects has been fixed in certain
situations (GNU runtime only).
* Type checking has been fixed and improved in many situations
involving protocols.
Java
* The java.sql and javax.sql packages now implement the JDBC 3.0
(JDK 1.4) API.
* The JDK 1.4 assert facility has been implemented.
* The bytecode interpreter is now direct threaded and thus faster.
Fortran
* Fortran improvements are listed in [7]the Fortran documentation.
Ada
* Ada tasking now works with glibc 2.3.x threading libraries.
New Targets and Target Specific Improvements
* The following changes have been made to the HP-PA port:
+ The port now defaults to scheduling for the PA8000 series of
processors.
+ Scheduling support for the PA7300 processor has been added.
+ The 32-bit port now supports weak symbols under HP-UX 11.
+ The handling of initializers and finalizers has been improved
under HP-UX 11. The 64-bit port no longer uses collect2.
+ Dwarf2 EH support has been added to the 32-bit linux port.
+ ABI fixes to correct the passing of small structures by
value.
* The SPARC, HP-PA, SH4, and x86/pentium ports have been converted
to use the DFA processor pipeline description.
* The following NetBSD configurations for the SuperH processor
family have been added:
+ SH3, big-endian, sh-*-netbsdelf*
+ SH3, little-endian, shle-*-netbsdelf*
+ SH5, SHmedia, big-endian, 32-bit default, sh5-*-netbsd*
+ SH5, SHmedia, little-endian, 32-bit default, sh5le-*-netbsd*
+ SH5, SHmedia, big-endian, 64-bit default, sh64-*-netbsd*
+ SH5, SHmedia, little-endian, 64-bit default, sh64le-*-netbsd*
* The following changes have been made to the IA-32/x86-64 port:
+ SSE2 and 3dNOW! intrinsics are now supported.
+ Support for thread local storage has been added to the IA-32
and x86-64 ports.
+ The x86-64 port has been significantly improved.
* The following changes have been made to the MIPS port:
+ All configurations now accept the -mabi switch. Note that you
will need appropriate multilibs for this option to work
properly.
+ ELF configurations will always pass an ABI flag to the
assembler, except when the MIPS EABI is selected.
+ -mabi=64 no longer selects MIPS IV code.
+ The -mcpu option, which was deprecated in 3.1 and 3.2, has
been removed from this release.
+ -march now changes the core ISA level. In previous releases,
it would change the use of processor-specific extensions, but
would leave the core ISA unchanged. For example, mips64-elf
-march=r8000 will now generate MIPS IV code.
+ Under most configurations, -mipsN now acts as a synonym for
-march.
+ There are some new preprocessor macros to describe the -march
and -mtune settings. See the documentation of those options
for details.
+ Support for the NEC VR-Series processors has been added. This
includes the 54xx, 5500, and 41xx series.
+ Support for the Sandcraft sr71k processor has been added.
* The following changes have been made to the S/390 port:
+ Support to build the Java runtime libraries has been added.
Java is now enabled by default on s390-*-linux* and
s390x-*-linux* targets.
+ Multilib support for the s390x-*-linux* target has been
added; this allows to build 31-bit binaries using the -m31
option.
+ Support for thread local storage has been added.
+ Inline assembler code may now use the 'Q' constraint to
specify memory operands without index register.
+ Various platform-specific performance improvements have been
implemented; in particular, the compiler now uses the BRANCH
ON COUNT family of instructions and makes more frequent use
of the TEST UNDER MASK family of instructions.
* The following changes have been made to the PowerPC port:
+ Support for IBM Power4 processor added.
+ Support for Motorola e500 SPE added.
+ Support for AIX 5.2 added.
+ Function and Data sections now supported on AIX.
+ Sibcall optimizations added.
* The support for H8 Tiny is added to the H8/300 port with -mn.
Obsolete Systems
Support for a number of older systems has been declared obsolete in
GCC 3.3. Unless there is activity to revive them, the next release of
GCC will have their sources permanently removed.
All configurations of the following processor architectures have been
declared obsolete:
* Matsushita MN10200, mn10200-*-*
* Motorola 88000, m88k-*-*
* IBM ROMP, romp-*-*
Also, some individual systems have been obsoleted:
* Alpha
+ Interix, alpha*-*-interix*
+ Linux libc1, alpha*-*-linux*libc1*
+ Linux ECOFF, alpha*-*-linux*ecoff*
* ARM
+ Generic a.out, arm*-*-aout*
+ Conix, arm*-*-conix*
+ "Old ABI," arm*-*-oabi
+ StrongARM/COFF, strongarm-*-coff*
* HPPA (PA-RISC)
+ Generic OSF, hppa1.0-*-osf*
+ Generic BSD, hppa1.0-*-bsd*
+ HP/UX versions 7, 8, and 9, hppa1.[01]-*-hpux[789]*
+ HiUX, hppa*-*-hiux*
+ Mach Lites, hppa*-*-lites*
* Intel 386 family
+ Windows NT 3.x, i?86-*-win32
* MC68000 family
+ HP systems, m68000-hp-bsd* and m68k-hp-bsd*
+ Sun systems, m68000-sun-sunos*, m68k-sun-sunos*, and
m68k-sun-mach*
+ AT&T systems, m68000-att-sysv*
+ Atari systems, m68k-atari-sysv*
+ Motorola systems, m68k-motorola-sysv*
+ NCR systems, m68k-ncr-sysv*
+ Plexus systems, m68k-plexus-sysv*
+ Commodore systems, m68k-cbm-sysv*
+ Citicorp TTI, m68k-tti-*
+ Unos, m68k-crds-unos*
+ Concurrent RTU, m68k-ccur-rtu*
+ Linux a.out, m68k-*-linux*aout*
+ Linux libc1, m68k-*-linux*libc1*
+ pSOS, m68k-*-psos*
* MIPS
+ Generic ECOFF, mips*-*-ecoff*
+ SINIX, mips-sni-sysv4
+ Orion RTEMS, mips64orion-*-rtems*
* National Semiconductor 32000
+ OpenBSD, ns32k-*-openbsd*
* POWER (aka RS/6000) and PowerPC
+ AIX versions 1, 2, and 3, rs6000-ibm-aix[123]*
+ Bull BOSX, rs6000-bull-bosx
+ Generic Mach, rs6000-*-mach*
+ Generic SysV, powerpc*-*-sysv*
+ Linux libc1, powerpc*-*-linux*libc1*
* Sun SPARC
+ Generic a.out, sparc-*-aout*, sparclet-*-aout*,
sparclite-*-aout*, and sparc86x-*-aout*
+ NetBSD a.out, sparc-*-netbsd*aout*
+ Generic BSD, sparc-*-bsd*
+ ChorusOS, sparc-*-chorusos*
+ Linux a.out, sparc-*-linux*aout*
+ Linux libc1, sparc-*-linux*libc1*
+ LynxOS, sparc-*-lynxos*
+ Solaris on HAL hardware, sparc-hal-solaris2*
+ SunOS versions 3 and 4, sparc-*-sunos[34]*
* NEC V850
+ RTEMS, v850-*-rtems*
* VAX
+ VMS, vax-*-vms*
Documentation improvements
Other significant improvements
* Almost all front-end dependencies in the compiler have been
separated out into a set of language hooks. This should make
adding a new front end clearer and easier.
* One effect of removing the separate preprocessor is a small
increase in the robustness of the compiler in general, and the
maintainability of target descriptions. Previously target-specific
built-in macros and others, such as __FAST_MATH__, had to be
handled with so-called specs that were hard to maintain. Often
they would fail to behave properly when conflicting options were
supplied on the command line, and define macros in the user's
namespace even when strict ISO compliance was requested.
Integrating the preprocessor has cleanly solved these issues.
* The Makefile suite now supports redirection of make install by
means of the variable DESTDIR.
_________________________________________________________________
GCC 3.3
Detailed release notes for the GCC 3.3 release follow.
Bug Fixes
bootstrap failures
* [8]10140 cross compiler build failures: missing __mempcpy (DUP:
[9]10198,[10]10338)
Internal compiler errors (multi-platform)
* [11]3581 large string causes segmentation fault in cc1
* [12]4382 __builtin_{set,long}jmp with -O3 can crash the compiler
* [13]5533 (c++) ICE when processing std::accumulate(begin, end,
init, invalid_op)
* [14]6387 -fpic -gdwarf-2 -g1 combination gives ICE in dwarf2out
* [15]6412 (c++) ICE in retrieve_specialization
* [16]6620 (c++) partial template specialization causes an ICE
(segmentation fault)
* [17]6663 (c++) ICE with attribute aligned
* [18]7068 ICE with incomplete types
* [19]7083 (c++) ICE using -gstabs with dodgy class derivation
* [20]7647 (c++) ICE when data member has the name of the enclosing
class
* [21]7675 ICE in fixup_var_refs_1
* [22]7718 'complex' template instantiation causes ICE
* [23]8116 (c++) ICE in member template function
* [24]8358 (ada) Ada compiler accesses freed memory, crashes
* [25]8511 (c++) ICE: (hopefully) reproducible cc1plus segmentation
fault
* [26]8564 (c++) ICE in find_function_data, in function.c
* [27]8660 (c++) template overloading ICE in tsubst_expr, in cp/pt.c
* [28]8766 (c++) ICE after failed initialization of static template
variable
* [29]8803 ICE in instantiate_virtual_regs_1, in function.c
* [30]8846 (c++) ICE after diagnostic if fr_FR@euro locale is set
* [31]8906 (c++) ICE (Segmentation fault) when parsing nested-class
definition
* [32]9216 (c++) ICE on missing template parameter
* [33]9261 (c++) ICE in arg_assoc, in cp/decl2.c
* [34]9263 (fortran) ICE caused by invalid PARAMETER in implied DO
loop
* [35]9429 (c++) ICE in template instantiation with a pointered new
operator
* [36]9516 Internal error when using a big array
* [37]9600 (c++) ICE with typedefs in template class
* [38]9629 (c++) virtual inheritance segfault
* [39]9672 (c++) ICE: Error reporting routines re-entered
* [40]9749 (c++) ICE in write_expression on invalid function
prototype
* [41]9794 (fortran) ICE: floating point exception during constant
folding
* [42]9829 (c++) Missing colon in nested namespace usage causes ICE
* [43]9916 (c++) ICE with noreturn function in ?: statement
* [44]9936 ICE with local function and variable-length 2d array
* [45]10262 (c++) cc1plus crashes with large generated code
* [46]10278 (c++) ICE in parser for invalid code
* [47]10446 (c++) ICE on definition of nonexistent member function
of nested class in a class template
* [48]10451 (c++) ICE in grokdeclarator on spurious mutable
declaration
* [49]10506 (c++) ICE in build_new at cp/init.c with
-fkeep-inline-functions and multiple inheritance
* [50]10549 (c++) ICE in store_bit_field on bitfields that exceed
the precision of the declared type
Optimization bugs
* [51]2001 Inordinately long compile times in reload CSE regs
* [52]2391 Exponential compilation time explosion in combine
* [53]2960 Duplicate loop conditions even with -Os
* [54]4046 redundant conditional branch
* [55]6405 Loop-unrolling related performance regressions
* [56]6798 very long compile time with large case-statement
* [57]6871 const objects shouldn't be moved to .bss
* [58]6909 problem w/ -Os on modified loop-2c.c test case
* [59]7189 gcc -O2 -Wall does not print ``control reaches end of
non-void function'' warning
* [60]7642 optimization problem with signbit()
* [61]8634 incorrect code for inlining of memcpy under -O2
* [62]8750 Cygwin prolog generation erroneously emitting __alloca as
regular function call
C front end
* [63]2161 long if-else cascade overflows parser stack
* [64]4319 short accepted on typedef'd char
* [65]8602 incorrect line numbers in warning messages when using
inline functions
* [66]9177 -fdump-translation-unit: C front end deletes
function_decl AST nodes and breaks debugging dumps
* [67]9853 miscompilation of non-constant structure initializer
c++ compiler and library
* [68]45 legal template specialization code is rejected (DUP:
[69]3784)
* [70]764 lookup failure: friend operator and dereferencing a
pointer and templates (DUP: [71]5116)
* [72]2862 gcc accepts invalid explicit instantiation syntax (DUP:
2863)
* [73]3663 G++ doesn't check access control during template
instantiation
* [74]3797 gcc fails to emit explicit specialization of a template
member
* [75]3948 Two destructors are called when no copy destructor is
defined (ABI change)
* [76]4137 Conversion operator within template is not accepted
* [77]4361 bogus ambiguity taking the address of a member template
* [78]4802 g++ accepts illegal template code (access to private
member; DUP: [79]5837)
* [80]4803 inline function is used but never defined, and g++ does
not object
* [81]5094 Partial specialization cannot be friend?
* [82]5730 complex<double>::norm() -- huge slowdown from
egcs-2.91.66
* [83]6713 Regression wrt 3.0.4: g++ -O2 leads to seg fault at run
time
* [84]7015 certain __asm__ constructs rejected
* [85]7086 compile time regression (quadratic behavior in
fixup_var_refs)
* [86]7099 G++ doesn't set the noreturn attribute on std::exit and
std::abort
* [87]7247 copy constructor missing when inlining enabled (invalid
optimization?)
* [88]7441 string array initialization compilation time regression
from seconds to minutes
* [89]7768 __PRETTY_FUNCTION__ for template destructor is wrong
* [90]7804 bad printing of floating point constant in warning
message
* [91]8099 Friend classes and template specializations
* [92]8117 member function pointers and multiple inheritance
* [93]8205 using declaration and multiple inheritance
* [94]8645 unnecessary non-zero checks in stl_tree.h
* [95]8724 explicit destructor call for incomplete class allowed
* [96]8805 compile time regression with many member variables
* [97]8691 -O3 and -fno-implicit-templates are incompatible
* [98]8700 unhelpful error message for binding temp to reference
* [99]8724 explicit destructor call for incomplete class allowed
* [100]8949 numeric_limits<>::denorm_min() and is_iec559 problems
* [101]9016 Failure to consistently constant fold "constant" C++
objects
* [102]9053 g++ confused about ambiguity of overloaded function
templates
* [103]9152 undefined virtual thunks
* [104]9182 basic_filebuf<> does not report errors in codecvt<>::out
* [105]9297 data corruption due to codegen bug (when copying.)
* [106]9318 i/ostream::operator>>/<<(streambuf*) broken
* [107]9320 Incorrect usage of traits_type::int_type in
stdio_filebuf
* [108]9400 bogus -Wshadow warning: shadowed declaration of this in
local classes
* [109]9424 i/ostream::operator>>/<<(streambuf*) drops characters
* [110]9425 filebuf::pbackfail broken (DUP: [111]9439)
* [112]9474 GCC freezes in compiling a weird code mixing <iostream>
and <iostream.h>
* [113]9548 Incorrect results from setf(ios::fixed) and
precision(-1) [114][DR 231]
* [115]9555 ostream inserters fail to set badbit on exception
* [116]9561 ostream inserters rethrow exception of wrong type
* [117]9563 ostream::sentry returns true after a failed preparation
* [118]9582 one-definition rule violation in std::allocator
* [119]9622 __PRETTY_FUNCTION__ incorrect in template destructors
* [120]9683 bug in initialization chains for static const variables
from template classes
* [121]9791 -Woverloaded-virtual reports hiding of destructor
* [122]9817 collate::compare doesn't handle nul characters
* [123]9825 filebuf::sputbackc breaks sbumpc
* [124]9826 operator>>(basic_istream, basic_string) fails to compile
with custom traits
* [125]9924 Multiple using statements for builtin functions not
allowed
* [126]9946 destructor is not called for temporary object
* [127]9964 filebuf::close() sometimes fails to close file
* [128]9988 filebuf::overflow writes EOF to file
* [129]10033 optimization breaks polymorphic references w/ typeid
operator
* [130]10097 filebuf::underflow drops characters
* [131]10132 filebuf destructor can throw exceptions
* [132]10180 gcc fails to warn about non-inlined function
* [133]10199 method parametrized by template does not work
everywhere
* [134]10300 use of array-new (nothrow) in segfaults on NULL return
* [135]10427 Stack corruption with variable-length automatic arrays
and virtual destructors
* [136]10503 Compilation never stops in fixed_type_or_null
Objective-C
* [137]5956 selectors aren't matched properly when added to the
selector table
Fortran compiler and library
* [138]1832 list directed i/o overflow hangs, -fbounds-check doesn't
detect
* [139]3924 g77 generates code that is rejected by GAS if COFF debug
info requested
* [140]5634 doc: explain that configure --prefix=~/... does not work
* [141]6367 multiple repeat counts confuse namelist read into array
* [142]6491 Logical operations error on logicals when using
-fugly-logint
* [143]6742 Generation of C++ Prototype for FORTRAN and extern "C"
* [144]7113 Failure of g77.f-torture/execute/f90-intrinsic-bit.f -Os
on irix6.5
* [145]7236 OPEN(...,RECL=nnn,...) without ACCESS='DIRECT' should
assume a direct access file
* [146]7278 g77 "bug"; the executable misbehaves (with -O2
-fno-automatic)
* [147]7384 DATE_AND_TIME milliseconds field inactive on Windows
* [148]7388 Incorrect output with 0-based array of characters
* [149]8587 Double complex zero ** double precision number -> NaN
instead of zero
* [150]9038 -ffixed-line-length-none -x f77-cpp-input gives:
Warning: unknown register name line-length-none
* [151]10197 Direct access files not unformatted by default
Java compiler and library
* [152]6005 gcj fails to build rhug on alpha
* [153]6389 System.getProperty("") should always throw an
IllegalArgumentException
* [154]6576 java.util.ResourceBundle.getResource ignores locale
* [155]6652 new java.io.File("").getCanonicalFile() throws exception
* [156]7060 getMethod() doesn't search super interface
* [157]7073 bytecode interpreter gives wrong answer for interface
getSuperclass()
* [158]7180 possible bug in
javax.naming.spi.NamingManager.getPlusPath()
* [159]7416 java.security startup refs "GNU libgcj.security"
* [160]7570 Runtime.exec with null envp: child doesn't inherit
parent env (DUP: [161]7578)
* [162]7611 Internal error while compiling libjava with -O
* [163]7709 NullPointerException in _Jv_ResolvePoolEntry
* [164]7766 ZipInputStream.available returns 0 immediately after
construction
* [165]7785 Calendar.getTimeInMillis/setTimeInMillis should be
public
* [166]7786 TimeZone.getDSTSavings() from JDK1.4 not implemented
* [167]8142 '$' in class names vs. dlopen 'dynamic string tokens'
* [168]8234 ZipInputStream chokes when InputStream.read() returns
small chunks
* [169]8415 reflection bug: exception info for Method
* [170]8481 java.Random.nextInt(int) may return negative
* [171]8593 Error reading GZIPped files with BufferedReader
* [172]8759 java.beans.Introspector has no flushCaches() or
flushFromCaches() methods
* [173]8997 spin() calls Thread.sleep
* [174]9253 on win32, java.io.File.listFiles("C:\\") returns pwd
instead of the root content of C:
* [175]9254 java::lang::Object::wait(), threads-win32.cc returns
wrong return codes
* [176]9271 Severe bias in java.security.SecureRandom
Ada compiler and library
* [177]6767 make gnatlib-shared fails on -laddr2line
* [178]9911 gnatmake fails to link when GCC configured with
--with-sjlj-exceptions=yes
* [179]10020 Can't bootstrap gcc on AIX with Ada enabled
* [180]10546 Ada tasking not working on Red Hat 9
preprocessor
* [181]7029 preprocessor should ignore #warning with -M
ARM-specific
* [182]2903 [arm] Optimization bug with long long arithmetic
* [183]7873 arm-linux-gcc fails when assigning address to a bit
field
FreeBSD-specific
* [184]7680 float functions undefined in math.h/cmath with #define
_XOPEN_SOURCE
HP-UX or HP-PA-specific
* [185]8705 [HP-PA] ICE in emit_move_insn_1, in expr.c
* [186]9986 [HP-UX] Incorrect transformation of fputs_unlocked to
fputc_unlocked
* [187]10056 [HP-PA] ICE at -O2 when building c++ code from doxygen
m68hc11-specific
* [188]6744 Bad assembler code generated: reference to pseudo
register z
* [189]7361 Internal compiler error in reload_cse_simplify_operands,
in reload1.c
MIPS-specific
* [190]9496 [mips-linux] bug in optimizer?
PowerPC-specific
* [191]7067 -Os with -mcpu=powerpc optimizes for speed (?) instead
of space
* [192]8480 reload ICEs for LAPACK code on powerpc64-linux
* [193]8784 [AIX] Internal compiler error in simplify_gen_subreg
* [194]10315 [powerpc] ICE: in extract_insn, in recog.c
SPARC-specific
* [195]10267 (documentation) Wrong build instructions for
*-*-solaris2*
x86-specific (Intel/AMD)
* [196]7916 ICE in instantiate_virtual_register_1
* [197]7926 (c++) i486 instructions in header files make c++
programs crash on i386
* [198]8555 ICE in gen_split_1231
* [199]8994 ICE with -O -march=pentium4
* [200]9426 ICE with -fssa -funroll-loops -fprofile-arcs
* [201]9806 ICE in inline assembly with -fPIC flag
* [202]10077 gcc -msse2 generates movd to move dwords between xmm
regs
* [203]10233 64-bit comparison only comparing bottom 32-bits
* [204]10286 type-punning doesn't work with __m64 and -O
* [205]10308 [x86] ICE with -O -fgcse or -O2
_________________________________________________________________
GCC 3.3.1
Bug Fixes
This section lists the problem reports (PRs) from GCC's bug tracking
system that are known to be fixed in the 3.3.1 release. This list
might not be complete (that is, it is possible that some PRs that have
been fixed are not listed here).
Bootstrap failures
* [206]11272 [Solaris] make bootstrap fails while building libstdc++
Internal compiler errors (multi-platform)
* [207]5754 ICE on invalid nested template class
* [208]6597 ICE in set_mem_alias_set compiling Qt with -O2 on ia64
and --enable-checking
* [209]6949 (c++) ICE in tsubst_decl, in cp/pt.c
* [210]7053 (c++) ICE when declaring a function already defined as a
friend method of a template class
* [211]8164 (c++) ICE when using different const expressions as
template parameter
* [212]8384 (c++) ICE in is_base_type, in dwarf2out.c
* [213]9559 (c++) ICE with invalid initialization of a static const
* [214]9649 (c++) ICE in finish_member_declaration, in
cp/semantics.c when redeclaring a static member variable
* [215]9864 (fortran) ICE in add_abstract_origin_attribute, in
dwarfout.c with -g -O -finline-functions
* [216]10432 (c++) ICE in poplevel, in cp/decl.c
* [217]10475 ICE in subreg_highpart_offset for code with long long
* [218]10635 (c++) ICE when dereferencing an incomplete type casted
from a void pointer
* [219]10661 (c++) ICE in instantiate_decl, in cp/pt.c while
instantiating static member variables
* [220]10700 ICE in copy_to_mode_reg on 64-bit targets
* [221]10712 (c++) ICE in constructor_name_full, in cp/decl2.c
* [222]10796 (c++) ICE when defining an enum with two values: -1 and
MAX_INT_64BIT
* [223]10890 ICE in merge_assigned_reloads building Linux 2.4.2x
sched.c
* [224]10939 (c++) ICE with template code
* [225]10956 (c++) ICE when specializing a template member function
of a template class, in tsubst, in cp/pt.c
* [226]11041 (c++) ICE: const myclass &x = *x; (when operator*()
defined)
* [227]11059 (c++) ICE with empty union
* [228]11083 (c++) ICE in commit_one_edge_insertion, in cfgrtl.c
with -O2 -fnon-call-exceptions
* [229]11105 (c++) ICE in mangle_conv_op_name_for_type
* [230]11149 (c++) ICE on error when instantiation with call
function of a base type
* [231]11228 (c++) ICE on new-expression using array operator new
and default-initialization
* [232]11282 (c++) Infinite memory usage after syntax error
* [233]11301 (fortran) ICE with -fno-globals
* [234]11308 (c++) ICE when using an enum type name as if it were a
class or namespace
* [235]11473 (c++) ICE with -gstabs when empty struct inherits from
an empty struct
* [236]11503 (c++) ICE when instantiating template with ADDR_EXPR
* [237]11513 (c++) ICE in push_template_decl_real, in cp/pt.c:
template member functions
Optimization bugs
* [238]11198 -O2 -frename-registers generates wrong code (aliasing
problem)
* [239]11304 Wrong code production with -fomit-frame-pointer
* [240]11381 volatile memory access optimized away
* [241]11536 [strength-reduce] -O2 optimization produces wrong code
* [242]11557 constant folding bug generates wrong code
C front end
* [243]5897 No warning for statement after return
* [244]11279 DWARF-2 output mishandles large enums
Preprocessor bugs
* [245]11022 no warning for non-compatible macro redefinition
C++ compiler and library
* [246]2330 static_cast<>() to a private base is allowed
* [247]5388 Incorrect message "operands to ?: have different types"
* [248]5390 Libiberty fails to demangle multi-digit template
parameters
* [249]7877 Incorrect parameter passing to specializations of member
function templates
* [250]9393 Anonymous namespaces and compiling the same file twice
* [251]10032 -pedantic converts some errors to warnings
* [252]10468 const typeof(x) is non-const, but only in templates
* [253]10527 confused error message with "new int()" parameter
initializer
* [254]10679 parameter MIN_INLINE_INSNS is not honored
* [255]10682 gcc chokes on a typedef for an enum inside a class
template
* [256]10689 pow(std::complex(0),1/3) returns (nan, nan) instead of
0.
* [257]10845 template member function (with nested template as
parameter) cannot be called anymore if another unrelated template
member function is defined
* [258]10849 Cannot define an out-of-class specialization of a
private nested template class
* [259]10888 Suppress -Winline warnings for system headers
* [260]10929 -Winline warns about functions for which no definition
is visible
* [261]10931 valid conversion static_cast<const unsigned
int&>(lvalue-of-type-int) is rejected
* [262]10940 Bad code with explicit specialization
* [263]10968 If member function implicitly instantiated, explicit
instantiation of class fails to instantiate it
* [264]10990 Cannot convert with dynamic_cast<> to a private base
class from within a member function
* [265]11039 Bad interaction between implicit typename deprecation
and friendship
* [266]11062 (libstdc++) avoid __attribute__ ((unused)); say
"__unused__" instead
* [267]11095 C++ iostream manipulator causes segfault when called
with negative argument
* [268]11098 g++ doesn't emit complete debugging information for
local variables in destructors
* [269]11137 Linux shared library constructors not called unless
there's one global object
* [270]11154 spurious ambiguity report for template class
specialization
* [271]11329 Compiler cannot find user defined implicit typecast
* [272]11332 Spurious error with casts in ?: expression
* [273]11431 static_cast behavior with subclasses when default
constructor available
* [274]11528 money_get facet does not accept "$.00" as valid
* [275]11546 Type lookup problems in out-of-line definition of a
class doubly nested from a template class
* [276]11567 C++ code containing templated member function with same
name as pure virtual member function results in linking failure
* [277]11645 Failure to deal with using and private inheritance
Java compiler and library
* [278]5179 Qualified static field access doesn't initialize its
class
* [279]8204 gcj -O2 to native reorders certain instructions
improperly
* [280]10838 java.io.ObjectInputStream syntax error
* [281]10886 The RMI registry that comes with GCJ does not work
correctly
* [282]11349 JNDI URL context factories not located correctly
x86-specific (Intel/AMD)
* [283]4823 ICE on inline assembly code
* [284]8878 miscompilation with -O and SSE
* [285]9815 (c++ library) atomicity.h - fails to compile with -O3
-masm=intel
* [286]10402 (inline assembly) [x86] ICE in merge_assigned_reloads,
in reload1.c
* [287]10504 ICE with SSE2 code and -O3 -mcpu=pentium4 -msse2
* [288]10673 ICE for x86-64 on freebsd libc vfprintf.c source
* [289]11044 [x86] out of range loop instructions for FP code on K6
* [290]11089 ICE: instantiate_virtual_regs_lossage while using SSE
built-ins
* [291]11420 [x86_64] gcc generates invalid asm code when "-O -fPIC"
is used
SPARC- or Solaris- specific
* [292]9362 solaris 'as' dies when fed .s and "-gstabs"
* [293]10142 [SPARC64] gcc produces wrong code when passing
structures by value
* [294]10663 New configure check aborts with Sun tools.
* [295]10835 combinatorial explosion in scheduler on HyperSPARC
* [296]10876 ICE in calculate_giv_inc when building KDE
* [297]10955 wrong code at -O3 for structure argument in context of
structure return
* [298]11018 -mcpu=ultrasparc busts tar-1.13.25
* [299]11556 [sparc64] ICE in gen_reg_rtx() while compiling 2.6.x
Linux kernel
ia64 specific
* [300]10907 gcc violates the ia64 ABI (GP must be preserved)
* [301]11320 scheduler bug (in machine depended reorganization pass)
* [302]11599 bug with conditional and __builtin_prefetch
PowerPC specific
* [303]9745 [powerpc] gcc mis-compiles libmcrypt (alias problem
during loop)
* [304]10871 error in rs6000_stack_info save_size computation
* [305]11440 gcc mis-compiles c++ code (libkhtml) with -O2,
-fno-gcse cures it
m68k-specific
* [306]7594 [m68k] ICE on legal code associated with simplify-rtx
* [307]10557 [m68k] ICE in subreg_offset_representable_p
* [308]11054 [m68k] ICE in reg_overlap_mentioned_p
ARM-specific
* [309]10834 [arm] GCC 3.3 still generates incorrect instructions
for functions with __attribute__ ((interrupt ("IRQ")))
* [310]10842 [arm] Clobbered link register is copied to pc under
certain circumstances
* [311]11052 [arm] noce_process_if_block() can lose REG_INC notes
* [312]11183 [arm] ICE in change_address_1 (3.3) / subreg_hard_regno
(3.4)
MIPS-specific
* [313]11084 ICE in propagate_one_insn, in flow.c
SH-specific
* [314]10331 can't compile c++ part of gcc cross compiler for sh-elf
* [315]10413 [SH] ICE in reload_cse_simplify_operands, in reload1.c
* [316]11096 i686-linux to sh-linux cross compiler fails to compile
C++ files
GNU/Linux (or Hurd?) specific
* [317]2873 Bogus fixinclude of stdio.h from glibc 2.2.3
UnixWare specific
* [318]3163 configure bug: gcc/aclocal.m4 mmap test fails on
UnixWare 7.1.1
Cygwin (or mingw) specific
* [319]5287 ICE with dllimport attribute
* [320]10148 [MingW/CygWin] Compiler dumps core
DJGPP specific
* [321]8787 GCC fails to emit .intel_syntax when invoked with
-masm=intel on DJGPP
Darwin (and MacOS X) specific
* [322]10900 trampolines crash
Documentation
* [323]1607 (c++) Format attributes on methods undocumented
* [324]4252 Invalid option `-fdump-translation-unit'
* [325]4490 Clarify restrictions on -m96bit-long-double,
-m128bit-long-double
* [326]10355 document an issue with regparm attribute on some
systems (e.g. Solaris)
* [327]10726 (fortran) Documentation for function "IDate Intrinsic
(Unix)" is wrong
* [328]10805 document bug in old version of Sun assembler
* [329]10815 warn against GNU binutils on AIX
* [330]10877 document need for newer binutils on i?86-*-linux-gnu
* [331]11280 Manual incorrect with respect to -freorder-blocks
* [332]11466 Document -mlittle-endian and its restrictions for the
sparc64 port
Testsuite bugs (compiler itself is not affected)
* [333]10737 newer bison causes g++.dg/parse/crash2.C to incorrectly
report failure
* [334]10810 gcc-3.3 fails make check: buffer overrun in
test_demangle.c
_________________________________________________________________
GCC 3.3.2
Bug Fixes
This section lists the problem reports (PRs) from [335]GCC's bug
tracking system that are known to be fixed in the 3.3.2 release. This
list might not be complete (that is, it is possible that some PRs that
have been fixed are not listed here).
Bootstrap failures and problems
* [336]8336 [SCO5] bootstrap config still tries to use COFF options
* [337]9330 [alpha-osf] Bootstrap failure on Compaq Tru64 with
--enable-threads=posix
* [338]9631 [hppa64-linux] gcc-3.3 fails to bootstrap
* [339]9877 fixincludes makes a bad sys/byteorder.h on svr5
(UnixWare 7.1.1)
* [340]11687 xstormy16-elf build fails in libf2c
* [341]12263 [SGI IRIX] bootstrap fails during compile of
libf2c/libI77/backspace.c
* [342]12490 buffer overflow in scan-decls.c (during Solaris 9
fix-header processing)
Internal compiler errors (multi-platform)
* [343]7277 Casting integers to vector types causes ICE
* [344]7939 (c++) ICE on invalid function template specialization
* [345]11063 (c++) ICE on parsing initialization list of const array
member
* [346]11207 ICE with negative index in array element designator
* [347]11522 (fortran) g77 dwarf-2 ICE in
add_abstract_origin_attribute
* [348]11595 (c++) ICE on duplicate label definition
* [349]11646 (c++) ICE in commit_one_edge_insertion with
-fnon-call-exceptions -fgcse -O
* [350]11665 ICE in struct initializer when taking address
* [351]11852 (c++) ICE with bad struct initializer.
* [352]11878 (c++) ICE in cp_expr_size
* [353]11883 ICE with any -O on mercury-generated C code
* [354]11991 (c++) ICE in cxx_incomplete_type_diagnostic, in
cp/typeck2.c when applying typeid operator to template template
parameter
* [355]12146 ICE in lookup_template_function, in cp/pt.c
* [356]12215 ICE in make_label_edge with -fnon-call-exceptions
-fno-gcse -O2
* [357]12369 (c++) ICE with templates and friends
* [358]12446 ICE in emit_move_insn on complicated array reference
* [359]12510 ICE in final_scan_insn
* [360]12544 ICE with large parameters used in nested functions
C and optimization bugs
* [361]9862 spurious warnings with -W -finline-functions
* [362]10962 lookup_field is a linear search on a linked list (can
be slow if large struct)
* [363]11370 -Wunreachable-code gives false complaints
* [364]11637 invalid assembly with -fnon-call-exceptions
* [365]11885 Problem with bitfields in packed structs
* [366]12082 Inappropriate unreachable code warnings
* [367]12180 Inline optimization fails for variadic function
* [368]12340 loop unroller + gcse produces wrong code
C++ compiler and library
* [369]3907 nested template parameter collides with member name
* [370]5293 confusing message when binding a temporary to a
reference
* [371]5296 [DR115] Pointers to functions and to template functions
behave differently in deduction
* [372]7939 ICE on function template specialization
* [373]8656 Unable to assign function with __attribute__ and pointer
return type to an appropriate variable
* [374]10147 Confusing error message for invalid template function
argument
* [375]11400 std::search_n() makes assumptions about Size parameter
* [376]11409 issues with using declarations, overloading, and
built-in functions
* [377]11740 ctype<wchar_t>::do_is(mask, wchar_t) doesn't handle
multiple bits in mask
* [378]11786 operator() call on variable in other namespace not
recognized
* [379]11867 static_cast ignores ambiguity
* [380]11928 bug with conversion operators that are typedefs
* [381]12114 Uninitialized memory accessed in dtor
* [382]12163 static_cast + explicit constructor regression
* [383]12181 Wrong code with comma operator and c++
* [384]12236 regparm and fastcall messes up parameters
* [385]12266 incorrect instantiation of unneeded template during
overload resolution
* [386]12296 istream::peek() doesn't set eofbit
* [387]12298 [sjlj exceptions] Stack unwind destroys
not-yet-constructed object
* [388]12369 ICE with templates and friends
* [389]12337 apparently infinite loop in g++
* [390]12344 stdcall attribute ignored if function returns a pointer
* [391]12451 missing(late) class forward declaration in cxxabi.h
* [392]12486 g++ accepts invalid use of a qualified name
x86 specific (Intel/AMD)
* [393]8869 [x86 MMX] ICE with const variable optimization and MMX
builtins
* [394]9786 ICE in fixup_abnormal_edges with -fnon-call-exceptions
-O2
* [395]11689 g++3.3 emits un-assembleable code for k6 architecture
* [396]12116 [k6] Invalid assembly output values with X-MAME code
* [397]12070 ICE converting between double and long double with
-msoft-float
ia64-specific
* [398]11184 [ia64 hpux] ICE on __builtin_apply building libobjc
* [399]11535 __builtin_return_address may not work on ia64
* [400]11693 [ia64] ICE in gen_nop_type
* [401]12224 [ia64] Thread-local storage doesn't work
PowerPC-specific
* [402]11087 [powerpc64-linux] GCC miscompiles raid1.c from linux
kernel
* [403]11319 loop miscompiled on ppc32
* [404]11949 ICE Compiler segfault with ffmpeg -maltivec code
SPARC-specific
* [405]11662 wrong code for expr. with cast to long long and
exclusive or
* [406]11965 invalid assembler code for a shift < 32 operation
* [407]12301 (c++) stack corruption when a returned expression
throws an exception
Alpha-specific
* [408]11717 [alpha-linux] unrecognizable insn compiling for.c of
kernel 2.4.22-pre8
HPUX-specific
* [409]11313 problem with #pragma weak and static inline functions
* [410]11712 __STDC_EXT__ not defined for C++ by default anymore?
Solaris specific
* [411]12166 Profiled programs crash if PROFDIR is set
Solaris-x86 specific
* [412]12101 i386 Solaris no longer works with GNU as?
Miscellaneous embedded target-specific bugs
* [413]10988 [m32r-elf] wrong blockmove code with -O3
* [414]11805 [h8300-unknown-coff] [H8300] ICE for simple code with
-O2
* [415]11902 [sh4] spec file improperly inserts rpath even when none
needed
* [416]11903 [sh4] -pthread fails to link due to error in spec file
on sh4
_________________________________________________________________
GCC 3.3.3
Minor features
In addition to the bug fixes documented below, this release contains
few minor features such as:
* Support for --with-sysroot
* Support for automatic detection of executable stacks
* Support for SSE3 instructions
* Support for thread local storage debugging under GDB on S390
Bug Fixes
This section lists the problem reports (PRs) from [417]GCC's bug
tracking system that are known to be fixed in the 3.3.3 release. This
list might not be complete (that is, it is possible that some PRs that
have been fixed are not listed here).
Bootstrap failures and issues
* [418]11890 Building cross gcc-3.3.1 for sparc-sun-solaris2.6 fails
* [419]12399 boehm-gc fails (when building a cross compiler):
libtool unable to infer tagged configuration
* [420]13068 mklibgcc.in doesn't handle multi-level multilib
subdirectories properly
Internal compiler errors (multi-platform)
* [421]10060 ICE (stack overflow) on huge file (300k lines) due to
recursive behaviour of copy_rtx_if_shared, in emit_rtl.c
* [422]10555 (c++) ICE on undefined template argument
* [423]10706 (c++) ICE in mangle_class_name_for_template
* [424]11496 (fortran) error in flow_loops_find when -funroll-loops
active
* [425]11741 ICE in pre_insert_copy_insn, in gcse.c
* [426]12440 GCC crashes during compilation of quicktime4linux 2.0.0
* [427]12632 (fortran) -fbounds-check ICE
* [428]12712 (c++) ICE on short legit C++ code fragment with gcc
3.3.2
* [429]12726 (c++) ICE (segfault) on trivial code
* [430]12890 (c++) ICE on compilation of class with throwing method
* [431]12900 (c++) ICE in rtl_verify_flow_info_1
* [432]13060 (fortran) ICE in fixup_var_refs_1, in function.c on
correct code with -O2 -fno-force-mem
* [433]13289 (c++) ICE in regenerate_decl_from_template on recursive
template
* [434]13318 ICE: floating point exception in the loop optimizer
* [435]13392 (c++) ICE in convert_from_eh_region_ranges_1, in
except.c
* [436]13574 (c++) invalid array default initializer in class lets
gcc consume all memory and die
* [437]13475 ICE on SIMD variables with partial value initialization
* [438]13797 (c++) ICE on invalid template parameter
* [439]13824 (java) gcj SEGV with simple .java program
C and optimization bugs
* [440]8776 loop invariants are not removed (most likely)
* [441]10339 [sparc,ppc,ppc64] Invalid optimization: replacing
strncmp by memcmp
* [442]11350 undefined labels with -Os -fPIC
* [443]12826 Optimizer removes reference through volatile pointer
* [444]12500 stabs debug info: void no longer a predefined / builtin
type
* [445]12941 builtin-bitops-1.c miscompilation (latent bug)
* [446]12953 tree inliner bug (in inline_forbidden_p) and fix
* [447]13041 linux-2.6/sound/core/oss/rate.c miscompiled
* [448]13507 spurious printf format warning
* [449]13382 Type information for const pointer disappears during
optimization.
* [450]13394 noreturn attribute ignored on recursive invokation
* [451]13400 Compiled code crashes storing to read-only location
* [452]13521 Endless loop in calculate_global_regs_live
C++ compiler and library
Some of the bug fixes in this list were made to implement decisions
that the ISO C++ standards committee has made concerning several
defect reports (DRs). Links in the list below point to detailed
discussion of the relevant defect report.
* [453]2094 unimplemented: use of `ptrmem_cst' in template type
unification
* [454]2294 using declaration confusion
* [455]5050 template instantiation depth exceeds limit: recursion
problem?
* [456]9371 Bad exception handling in
i/ostream::operator>>/<<(streambuf*)
* [457]9546 bad exception handling in ostream members
* [458]10081 basic_ios::_M_cache_locale leaves NULL members in the
face of unknown locales
* [459]10093 [460][DR 61] Setting failbit in exceptions doesn't work
* [461]10095 istream::operator>>(int&) sets ios::badbit when
ios::failbit is set.
* [462]11554 Warning about reordering of initializers doesn't
mention location of constructor
* [463]12297 istream::sentry::sentry() handles eof() incorrectly.
* [464]12352 Exception safety problems in src/localename.cc
* [465]12438 Memory leak in locale::combine()
* [466]12540 Memory leak in locale::locale(const char*)
* [467]12594 DRs [468]60 [TC] and [469]63 [TC] not implemented
* [470]12657 Resolution of [471]DR 292 (WP) still unimplemented
* [472]12696 memory eating infinite loop in diagnostics (error
recovery problem)
* [473]12815 Code compiled with optimization behaves unexpectedly
* [474]12862 Conflicts between typedefs/enums and namespace member
declarations
* [475]12926 Wrong value after assignment in initialize list using
bit-fields
* [476]12967 Resolution of [477]DR 300 [WP] still unimplemented
* [478]12971 Resolution of [479]DR 328 [WP] still unimplemented
* [480]13007 basic_streambuf::pubimbue, imbue wrong
* [481]13009 Implicitly-defined assignment operator writes to wrong
memory
* [482]13057 regparm attribute not applied to destructor
* [483]13070 -Wformat option ignored in g++
* [484]13081 forward template declarations in <complex> let inlining
fail
* [485]13239 Assertion does not seem to work correctly anymore
* [486]13262 "xxx is private within this context" when initializing
a self-contained template class
* [487]13290 simple typo in concept checking for std::generate_n
* [488]13323 Template code does not compile in presence of typedef
* [489]13369 __verify_grouping (and __add_grouping?) not correct
* [490]13371 infinite loop with packed struct and inlining
* [491]13445 Template argument replacement "dereferences" a typedef
* [492]13461 Fails to access protected-ctor from public constant
* [493]13462 Non-standard-conforming type set::pointer
* [494]13478 gcc uses wrong constructor to initialize a const
reference
* [495]13544 "conflicting types" for enums in different scopes
* [496]13650 string::compare should not (always) use
traits_type::length()
* [497]13683 bogus warning about passing non-PODs through ellipsis
* [498]13688 Derived class is denied access to protected base class
member class
* [499]13774 Member variable cleared in virtual multiple inheritance
class
* [500]13884 Protect sstream.tcc from extern template use
Java compiler and library
* [501]10746 [win32] garbage collection crash in GCJ
Objective-C compiler and library
* [502]11433 Crash due to dereferencing null pointer when querying
protocol
Fortran compiler and library
* [503]12633 logical expression gives incorrect result with
-fugly-logint option
* [504]13037 [gcse-lm] g77 generates incorrect code
* [505]13213 Hex constant problem when compiling with -fugly-logint
and -ftypeless-boz
x86-specific (Intel/AMD)
* [506]4490 ICE with -m128bit-long-double
* [507]12292 [x86_64] ICE: RTL check: expected code `const_int',
have `reg' in make_field_assignment, in combine.c
* [508]12441 ICE: can't find a register to spill
* [509]12943 array static-init failure under -fpic, -fPIC
* [510]13608 Incorrect code with -O3 -ffast-math
PowerPC-specific
* [511]11598 testcase gcc.dg/20020118-1.c fails runtime check of
__attribute__((aligned(16)))
* [512]11793 ICE in extract_insn, in recog.c (const_vector's)
* [513]12467 vmsumubm emitted when vmsummbm appropriate (typo in
altivec.md)
* [514]12537 g++ generates writeable text sections
SPARC-specific
* [515]12496 wrong result for __atomic_add(&value, -1) when using
-O0 -m64
* [516]12865 mprotect call to make trampoline executable may fail
* [517]13354 ICE in sparc_emit_set_const32
ARM-specific
* [518]10467 [arm] ICE in pre_insert_copy_insn,
ia64-specific
* [519]11226 ICE passing struct arg with two floats
* [520]11227 ICE for _Complex float, _Complex long double args
* [521]12644 GCC 3.3.2 fails to compile glibc on ia64
* [522]13149 build gcc-3.3.2 1305 error:unrecognizable insn
* Various fixes for libunwind
Alpha-specific
* [523]12654 Incorrect comparison code generated for Alpha
* [524]12965 SEGV+ICE in cc1plus on alpha-linux with -O2
* [525]13031 ICE (unrecognizable insn) when building
gnome-libs-1.4.2
HPPA-specific
* [526]11634 [hppa] ICE in verify_local_live_at_start, in flow.c
* [527]12158 [hppa] compilation does not terminate at -O1
S390-specific
* [528]11992 Wrong built-in code for memcmp with length 1<<24: only
(1<<24)-1 possible for CLCL-Instruction
SH-specific
* [529]9365 segfault in gen_far_branch (config/sh/sh.c)
* [530]10392 optimizer generates faulty array indexing
* [531]11322 SH profiler outputs multiple definitions of symbol
* [532]13069 gcc/config/sh/rtems.h broken
* [533]13302 Putting a va_list in a struct causes seg fault
* [534]13585 Incorrect optimization of call to sfunc
* Fix inappropriately exported libgcc functions from the shared
library
Other embedded target specific
* [535]8916 [mcore] unsigned char assign gets hosed.
* [536]11576 [h8300] ICE in change_address_1, in emit-rtl.c
* [537]13122 [h8300] local variable gets corrupted by function call
when -fomit-frame-pointer is given
* [538]13256 [cris] strict_low_part mistreated in delay slots
* [539]13373 [mcore] optimization with -frerun-cse-after-loop
-fexpensive-optimizations produces wrong code on mcore
GNU HURD-specific
* [540]12561 gcc/config/t-gnu needs updating to work with
--with-sysroot
Tru64 Unix specific
* [541]6243 testsuite fails almost all tests due to no libintl in
LD_LIBRARY_PATH during test.
* [542]11397 weak aliases broken on Tru64 UNIX
AIX-specific
* [543]12505 build failure due to defines of uchar in cpphash.h and
sys/types.h
* [544]13150 WEAK symbols not exported by collect2
IRIX-specific
* [545]12666 fixincludes problem on IRIX 6.5.19m
Solaris-specific
* [546]12969 Including sys/byteorder.h breaks configure checks
Testsuite problems (compiler is not affected)
* [547]10819 testsuite creates CR+LF on compiler version lines in
test summary files
* [548]11612 abi_check not finding correct libgcc_s.so.1
Miscellaneous
* [549]13211 using -###, incorrect warnings about unused linker file
are produced
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [550]gnu@gnu.org. There
are also [551]other ways to contact the FSF.
These pages are maintained by [552]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [553]GCC manuals. If that fails, the
[554]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [555]gcc@gnu.org or
[556]gcc@gcc.gnu.org. All of our lists have [557]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [558]Valid XHTML 1.0
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418. http://gcc.gnu.org/PR11890
419. http://gcc.gnu.org/PR12399
420. http://gcc.gnu.org/PR13068
421. http://gcc.gnu.org/PR10060
422. http://gcc.gnu.org/PR10555
423. http://gcc.gnu.org/PR10706
424. http://gcc.gnu.org/PR11496
425. http://gcc.gnu.org/PR11741
426. http://gcc.gnu.org/PR12440
427. http://gcc.gnu.org/PR12632
428. http://gcc.gnu.org/PR12712
429. http://gcc.gnu.org/PR12726
430. http://gcc.gnu.org/PR12890
431. http://gcc.gnu.org/PR12900
432. http://gcc.gnu.org/PR13060
433. http://gcc.gnu.org/PR13289
434. http://gcc.gnu.org/PR13318
435. http://gcc.gnu.org/PR13392
436. http://gcc.gnu.org/PR13574
437. http://gcc.gnu.org/PR13475
438. http://gcc.gnu.org/PR13797
439. http://gcc.gnu.org/PR13824
440. http://gcc.gnu.org/PR8776
441. http://gcc.gnu.org/PR10339
442. http://gcc.gnu.org/PR11350
443. http://gcc.gnu.org/PR12826
444. http://gcc.gnu.org/PR12500
445. http://gcc.gnu.org/PR12941
446. http://gcc.gnu.org/PR12953
447. http://gcc.gnu.org/PR13041
448. http://gcc.gnu.org/PR13507
449. http://gcc.gnu.org/PR13382
450. http://gcc.gnu.org/PR13394
451. http://gcc.gnu.org/PR13400
452. http://gcc.gnu.org/PR13521
453. http://gcc.gnu.org/PR2094
454. http://gcc.gnu.org/PR2294
455. http://gcc.gnu.org/PR5050
456. http://gcc.gnu.org/PR9371
457. http://gcc.gnu.org/PR9546
458. http://gcc.gnu.org/PR10081
459. http://gcc.gnu.org/PR10093
460. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#61
461. http://gcc.gnu.org/PR10095
462. http://gcc.gnu.org/PR11554
463. http://gcc.gnu.org/PR12297
464. http://gcc.gnu.org/PR12352
465. http://gcc.gnu.org/PR12438
466. http://gcc.gnu.org/PR12540
467. http://gcc.gnu.org/PR12594
468. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#60
469. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#63
470. http://gcc.gnu.org/PR12657
471. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#292
472. http://gcc.gnu.org/PR12696
473. http://gcc.gnu.org/PR12815
474. http://gcc.gnu.org/PR12862
475. http://gcc.gnu.org/PR12926
476. http://gcc.gnu.org/PR12967
477. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html
478. http://gcc.gnu.org/PR12971
479. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#328
480. http://gcc.gnu.org/PR13007
481. http://gcc.gnu.org/PR13009
482. http://gcc.gnu.org/PR13057
483. http://gcc.gnu.org/PR13070
484. http://gcc.gnu.org/PR13081
485. http://gcc.gnu.org/PR13239
486. http://gcc.gnu.org/PR13262
487. http://gcc.gnu.org/PR13290
488. http://gcc.gnu.org/PR13323
489. http://gcc.gnu.org/PR13369
490. http://gcc.gnu.org/PR13371
491. http://gcc.gnu.org/PR13445
492. http://gcc.gnu.org/PR13461
493. http://gcc.gnu.org/PR13462
494. http://gcc.gnu.org/PR13478
495. http://gcc.gnu.org/PR13544
496. http://gcc.gnu.org/PR13650
497. http://gcc.gnu.org/PR13683
498. http://gcc.gnu.org/PR13688
499. http://gcc.gnu.org/PR13774
500. http://gcc.gnu.org/PR13884
501. http://gcc.gnu.org/PR10746
502. http://gcc.gnu.org/PR11433
503. http://gcc.gnu.org/PR12633
504. http://gcc.gnu.org/PR13037
505. http://gcc.gnu.org/PR13213
506. http://gcc.gnu.org/PR4490
507. http://gcc.gnu.org/PR12292
508. http://gcc.gnu.org/PR12441
509. http://gcc.gnu.org/PR12943
510. http://gcc.gnu.org/PR13608
511. http://gcc.gnu.org/PR11598
512. http://gcc.gnu.org/PR11793
513. http://gcc.gnu.org/PR12467
514. http://gcc.gnu.org/PR12537
515. http://gcc.gnu.org/PR12496
516. http://gcc.gnu.org/PR12865
517. http://gcc.gnu.org/PR13354
518. http://gcc.gnu.org/PR10467
519. http://gcc.gnu.org/PR11226
520. http://gcc.gnu.org/PR11227
521. http://gcc.gnu.org/PR12644
522. http://gcc.gnu.org/PR13149
523. http://gcc.gnu.org/PR12654
524. http://gcc.gnu.org/PR12965
525. http://gcc.gnu.org/PR13031
526. http://gcc.gnu.org/PR11634
527. http://gcc.gnu.org/PR12158
528. http://gcc.gnu.org/PR11992
529. http://gcc.gnu.org/PR9365
530. http://gcc.gnu.org/PR10392
531. http://gcc.gnu.org/PR11322
532. http://gcc.gnu.org/PR13069
533. http://gcc.gnu.org/PR13302
534. http://gcc.gnu.org/PR13585
535. http://gcc.gnu.org/PR8916
536. http://gcc.gnu.org/PR11576
537. http://gcc.gnu.org/PR13122
538. http://gcc.gnu.org/PR13256
539. http://gcc.gnu.org/PR13373
540. http://gcc.gnu.org/PR12561
541. http://gcc.gnu.org/PR6243
542. http://gcc.gnu.org/PR11397
543. http://gcc.gnu.org/PR12505
544. http://gcc.gnu.org/PR13150
545. http://gcc.gnu.org/PR12666
546. http://gcc.gnu.org/PR12969
547. http://gcc.gnu.org/PR10819
548. http://gcc.gnu.org/PR11612
549. http://gcc.gnu.org/PR13211
550. mailto:gnu@gnu.org
551. http://www.gnu.org/home.html#ContactInfo
552. http://gcc.gnu.org/about.html
553. http://gcc.gnu.org/onlinedocs/
554. mailto:gcc-help@gcc.gnu.org
555. mailto:gcc@gnu.org
556. mailto:gcc@gcc.gnu.org
557. http://gcc.gnu.org/lists.html
558. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.2/index.html
GCC 3.2 Release Series
April 25, 2003
The [1]GNU project and the GCC developers are pleased to announce the
release of GCC 3.2.3.
The purpose of the GCC 3.2 release series is to provide a stable
platform for OS distributors to use building their next releases. A
primary objective was to stabilize the C++ ABI; we believe that the
interface to the compiler and the C++ standard library are now
relatively stable.
Be aware that C++ code compiled by GCC 3.2.x will (in general) not
interoperate with code compiled by GCC 3.1.1 or earlier.
Please refer to our [2]detailed list of news, caveats, and bug-fixes
for further information.
Release History
GCC 3.2.3
April 25, 2003 ([3]changes)
GCC 3.2.2
February 5, 2003 ([4]changes)
GCC 3.2.1
November 19, 2002 ([5]changes)
GCC 3.2
August 14, 2002 ([6]changes)
References and Acknowledgements
GCC used to stand for the GNU C Compiler, but since the compiler
supports several other languages aside from C, it now stands for the
GNU Compiler Collection.
A list of [7]successful builds is updated as new information becomes
available.
The GCC developers would like to thank the numerous people that have
contributed new features, improvements, bug fixes, and other changes
as well as test results to GCC. This [8]amazing group of volunteers is
what makes GCC successful.
For additional information about GCC please refer to the [9]GCC
project web site or contact the [10]GCC development mailing list.
To obtain GCC please use [11]our mirror sites, one of the [12]GNU
mirror sites, or [13]our CVS server.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [14]gnu@gnu.org. There
are also [15]other ways to contact the FSF.
These pages are maintained by [16]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [17]GCC manuals. If that fails, the
[18]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [19]gcc@gnu.org or
[20]gcc@gcc.gnu.org. All of our lists have [21]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [22]Valid XHTML 1.0
References
1. http://www.gnu.org/
2. http://gcc.gnu.org/gcc-3.2/changes.html
3. http://gcc.gnu.org/gcc-3.2/changes.html#3.2.3
4. http://gcc.gnu.org/gcc-3.2/changes.html#3.2.2
5. http://gcc.gnu.org/gcc-3.2/changes.html#3.2.1
6. http://gcc.gnu.org/gcc-3.2/changes.html#3.2
7. http://gcc.gnu.org/gcc-3.2/buildstat.html
8. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
9. http://gcc.gnu.org/index.html
10. mailto:gcc@gcc.gnu.org
11. http://gcc.gnu.org/mirrors.html
12. http://www.gnu.org/order/ftp.html
13. http://gcc.gnu.org/cvs.html
14. mailto:gnu@gnu.org
15. http://www.gnu.org/home.html#ContactInfo
16. http://gcc.gnu.org/about.html
17. http://gcc.gnu.org/onlinedocs/
18. mailto:gcc-help@gcc.gnu.org
19. mailto:gcc@gnu.org
20. mailto:gcc@gcc.gnu.org
21. http://gcc.gnu.org/lists.html
22. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.2/changes.html
GCC 3.2 Release Series
Changes, New Features, and Fixes
The latest release in the 3.2 release series is [1]GCC 3.2.3.
Caveats and New Features
Caveats
* The C++ compiler does not correctly zero-initialize
pointers-to-data members. You must explicitly initialize them. For
example: int S::*m(0); will work, but depending on
default-initialization to zero will not work. This bug cannot be
fixed in GCC 3.2 without inducing unacceptable risks. It will be
fixed in GCC 3.3.
* This GCC release is based on the GCC 3.1 sourcebase, and thus has
all the [2]changes in the GCC 3.1 series. In addition, GCC 3.2 has
a number of C++ ABI fixes which make its C++ compiler generate
binary code which is incompatible with the C++ compilers found in
earlier GCC releases, including GCC 3.1 and GCC 3.1.1.
Frontend Enhancements
C/C++/Objective-C
* The method of constructing the list of directories to be searched
for header files has been revised. If a directory named by a -I
option is a standard system include directory, the option is
ignored to ensure that the default search order for system
directories and the special treatment of system header files are
not defeated.
* The C and Objective-C compilers no longer accept the "Naming
Types" extension (typedef foo = bar); it was already unavailable
in C++. Code which uses it will need to be changed to use the
"typeof" extension instead: typedef typeof(bar) foo. (We have
removed this extension without a period of deprecation because it
has caused the compiler to crash since version 3.0 and no one
noticed until very recently. Thus we conclude it is not in
widespread use.)
C++
* GCC 3.2 fixed serveral differences between the C++ ABI implemented
in GCC and the multi-vendor standard, but more have been found
since the release. 3.2.1 adds a new warning, -Wabi, to warn about
code which is affected by these bugs. We will fix these bugs in
some future release, once we are confident that all have been
found; until then, it is our intention to make changes to the ABI
only if they are necessary for correct compilation of C++, as
opposed to conformance to the ABI documents.
* For details on how to build an ABI compliant compiler for
GNU/Linux systems, check the [3]common C++ ABI page.
New Targets and Target Specific Improvements
IA-32
* Fixed a number of bugs in SSE and MMX intrinsics.
* Fixed common compiler crashes with SSE instruction set enabled
(implied by -march=pentium3, pentium4, athlon-xp)
* __m128 and __m128i is not 128bit aligned when used in structures.
x86-64
* A bug whereby the compiler could generate bad code for bzero has
been fixed.
* ABI fixes (implying ABI incompatibilities with previous version in
some corner cases)
* Fixed prefetch code generation
_________________________________________________________________
GCC 3.2.3
3.2.3 is a bug fix release only; there are no new features that were
not present in GCC 3.2.2.
Bug Fixes
This section lists the problem reports (PRs) from GCC's bug tracking
system that are known to be fixed in the 3.2.3 release. This list
might not be complete (that is, it is possible that some PRs that have
been fixed are not listed here), and some of the titles have been
changed to make them more clear.
Internal Compiler Errors (multi-platform)
* [4]3782: (c++) -quiet -fstats produces a segmentation fault in
cc1plus
* [5]6440: (c++) template specializations cause ICE
* [6]7050: (c++) ICE on: (i ? get_string() : throw)
* [7]7741: ICE on conflicting types (make_decl_rtl in varasm.c)
* [8]7982: (c++) ICE due to infinite recursion (using STL set)
* [9]8068: exceedingly high (infinite) memory usage
* [10]8178: ICE with __builtin_ffs
* [11]8396: ICE in copy_to_mode_reg, in explow.c
* [12]8674: (c++) ICE in cp_expr_size, in cp/cp-lang.c
* [13]9768: ICE when optimizing inline code at -O2
* [14]9798: (c++) Infinite recursion (segfault) in
cp/decl.c:push_using_directive with recursive using directives
* [15]9799: mismatching structure initializer with nested flexible
array member: ICE
* [16]9928: ICE on duplicate enum declaration
* [17]10114: ICE in mem_loc_descriptor, in dwarf2out.c (affects
sparc, alpha)
* [18]10352: ICE in find_reloads_toplev
* [19]10336: ICE with -Wunreachable-code
C/optimizer bugs:
* [20]8224: Incorrect joining of signed and unsigned division
* [21]8613: -O2 produces wrong code with builtin strlen and
postincrements
* [22]8828: gcc reports some code is unreachable when it is not
* [23]9226: GCSE breaking argument passing
* [24]9853: miscompilation of non-constant structure initializer
* [25]9797: C99-style struct initializers are miscompiled
* [26]9967: Some standard C function calls should not be replaced
when optimizing for size
* [27]10116: ce2: invalid merge of join_bb in the context of switch
statements
* [28]10171: wrong code for inlined function
* [29]10175: -Wunreachable-code doesn't work for single lines
C++ compiler and library:
* [30]8316: Confusing diagnostic for code that misuses conversion
operators
* [31]9169: filebuf output fails if codecvt<>::out returns noconv
* [32]9420: incomplete type incorrectly reported
* [33]9459: typeof in return type specification of template not
supported
* [34]9507: filebuf::open handles ios_base::ate incorrectly
* [35]9538: Out-of-bounds memory access in streambuf::sputbackc
* [36]9602: Total confusion about template/friend/virtual/abstract
* [37]9993: destructor not called for local object created within
and returned from infinite loop
* [38]10167: ieee_1003.1-2001 locale specialisations on a
glibc-2.3.2 system
Java compiler and library:
* [39]9652: libgcj build fails on irix6.5.1[78]
* [40]10144: gas on solaris complains about bad .stabs lines for
java, native as unaffected
x86-specific (Intel/AMD):
* [41]8746: gcc miscompiles Linux kernel ppa driver on x86
* [42]9888: -mcpu=k6 -Os produces out of range loop instructions
* [43]9638: Cross-build for target i386-elf and i586-pc-linux-gnu
failed
* [44]9954: Cross-build for target i586-pc-linux-gnu (--with-newlib)
failed
SPARC-specific:
* [45]7784: [Sparc] ICE in extract_insn, in recog.c
* [46]7796: sparc extra failure with -m64 on execute/930921-1.c in
unroll.c
* [47]8281: ICE when compiling with -O2 -fPIC for Ultrasparc
* [48]8366: [Sparc] C testsuite failure with -m64 -fpic -O in
execute/loop-2d.c
* [49]8726: gcc -O2 miscompiles Samba 2.2.7 on 32-bit sparc
* [50]9414: Scheduling bug on Ultrasparc
* [51]10067: GCC-3.2.2 outputs invalid asm on sparc64
m68k-specific:
* [52]7248: broken "inclusive or" code
* [53]8343: m68k-elf/rtems ICE at instantiate_virtual_regs_1
PowerPC-specific:
* [54]9732: Wrong code with -O2 -fPIC
* [55]10073: ICE: powerpc cannot split insn
Alpha-specific:
* [56]7702: optimization problem on a DEC alpha under OSF1
* [57]9671: gcc.3.2.2 does not build on a HP Tru64 Unix v5.1B system
HP-specific:
* [58]8694: <string> breaks <ctype.h> on HP-UX 10.20 (DUP: 9275)
* [59]9953: (ada) gcc 3.2.x can't build 3.3-branch ada on HP-UX 10
(missing symbol)
* [60]10271: Floating point args don't get reloaded across function
calls with -O2
MIPS specific:
* [61]6362: mips-irix6 gcc-3.1 C testsuite failure with -mips4 in
compile/920501-4.c
CRIS specific:
* [62]10377: gcc-3.2.2 creates bad assembler code for cris
Miscellaneous and minor bugs:
* [63]6955: collect2 says "core dumped" when there is no core
_________________________________________________________________
GCC 3.2.2
Beginning with 3.2.2, GCC's Makefile suite supports redirection of
make install by means of the DESTDIR variable. Parts of the GCC tree
have featured that support long before, but now it is available even
from the top level.
Other than that, GCC 3.2.2 is a bug fix release only; there are no new
features that were not present in GCC 3.2.1.
Bug Fixes
On the following i386-based systems GCC 3.2.1 broke the C ABI wrt.
functions returning structures: Cygwin, FreeBSD (GCC 3.2.1 as shipped
with FreeBSD 5.0 does not have this problem), Interix, a.out-based
Linux and NetBSD, OpenBSD, and Darwin. GCC 3.2.2 reverts this ABI
change, and thus restores ABI-compatibility with previous releases
(except GCC 3.2.1) on these platforms.
This section lists the problem reports (PRs) from GCC's bug tracking
system that are known to be fixed in the 3.2.2 release. This list
might not be complete (that is, it is possible that some PRs that have
been fixed are not listed here) and some of the titles have been
changed to make them more clear.
Internal Compiler Errors (multi-platform)
* [64]5919: (c++) ICE when passing variable array to template
function
* [65]7129: (c++) ICE with min/max assignment operators (<?= and
>?=)
* [66]7507: ICE with -O2 when address of called function is a
complicated expression
* [67]7622: ICE with nested inline functions if function's address
is taken
* [68]7681: (fortran) ICE in compensate_edge, in reg-stack.c (also
PR [69]9258)
* [70]8031: (c++) ICE in code comparing typeids and casting from
virtual base
* [71]8275: ICE in simplify_subreg
* [72]8332: (c++) builtin strlen/template interaction causes ICE
* [73]8372: (c++) ICE on explicit call of destructor
* [74]8439: (c, not c++) empty struct causes ICE
* [75]8442: (c++) ICE with nested template classes
* [76]8518: ICE when compiling mplayer ("extern inline" issue)
* [77]8615: (c++) ICE with out-of-range character constant template
argument
* [78]8663: (c++) ICE in cp_expr_size, at cp-lang.c:307
* [79]8799: (c++) ICE: error reporting routines re-entered
* [80]9328: (c++) ICE with typeof(X) for overloaded X
* [81]9465: (preprocessor) cpp -traditional ICE on null bytes
C++ (compiler and library) bugs
* [82]47: scoping in nested classes is broken
* [83]6745: problems with iostream rdbuf() member function
* [84]8214: conversion from const char* const to char* sometimes
accepted illegally
* [85]8493: builtin strlen and overload resolution (same bug as
[86]8332)
* [87]8503: strange behaviour of function types
* [88]8727: compiler confused by inheritance from an anonymous
struct
* [89]7445: poor performance of std::locale::classic() in
multi-threaded applications
* [90]8230: mishandling of overflow in vector<T>::resize
* [91]8399: sync_with_stdio(false) breaks unformatted input
* [92]8662: illegal access of private member of unnamed class is
accepted
* [93]8707: "make distclean" fails in libstdc++-v3 directory
* [94]8708: __USE_MALLOC doesn't work
* [95]8790: Use of non-thread-safe strtok in src/localename.cc
* [96]8887: Bug in date formats with --enable-clocale=generic
* [97]9076: Call Frame Instructions are not handled correctly during
unwind operation
* [98]9151: std::setprecision limited to 16 digits when outputting a
double to a stream
* [99]9168: codecvt<char, char, mbstate_t> overwrites output buffers
* [100]9269: libstdc++ headers: explicit specialization of function
must precede its first use
* [101]9322: return value of basic_streambuf<>::getloc affected by
locale::global
* [102]9433: segfault in runtime support for dynamic_cast
C and optimizer bugs
* [103]8032: GCC incorrectly initializes static structs that have
flexible arrays
* [104]8639: simple arithmetic expression broken
* [105]8794: optimization improperly eliminates certain expressions
* [106]8832: traditional "asm volatile" code is illegally optimized
* [107]8988: loop optimizer bug: with -O2, code is generated that
segfaults (found on i386, bug present for all platforms)
* [108]9492: structure copy clobbers subsequent stores to structure
Objective-C bugs
* [109]9267: Objective-C parser won't build with newer bison
versions (e.g. 1.875)
Ada bugs
* [110]8344: Ada build problem due to conflict between gcc/final.o,
gcc/ada/final.o
Preprocessor bugs
* [111]8524: _Pragma within macros is improperly expanded
* [112]8880: __WCHAR_TYPE__ macro incorrectly set to "long int" with
-fshort-wchar
ARM-specific
* [113]9090: arm ICE with >= -O2; regression from gcc-2.95
x86-specific (Intel/AMD)
* [114]8588: ICE in extract_insn, at recog.c:NNNN (shift
instruction)
* [115]8599: loop unroll bug with -march=k6-3
* [116]9506: ABI breakage in structure return (affects BSD and
Cygwin, but not GNU/Linux)
FreeBSD 5.0 specific
* [117]9484: GCC 3.2.1 Bootstrap failure on FreeBSD 5.0
RTEMS-specific
* [118]9292: hppa1.1-rtems configurery problems
* [119]9293: [m68k-elf/rtems] config/m68k/t-crtstuff bug
* [120]9295: [mips-rtems] config/mips/rtems.h init/fini issue
* [121]9296: gthr-rtems regression
* [122]9316: powerpc-rtems: extending multilibs
HP-PA specific
* [123]9493: ICE with -O2 when building a simple function
Documentation
* [124]7341: hyperlink to gcov in GCC documentation doesn't work
* [125]8947: Please add a warning about "-malign-double" in docs
* [126]7448, [127]8882: typo cleanups
_________________________________________________________________
GCC 3.2.1
3.2.1 adds a new warning, -Wabi. This option warns when GNU C++
generates code that is known not to be binary-compatible with the
vendor-neutral ia32/ia64 ABI. Please consult the GCC manual, included
in the distribution, for details.
This release also removes an old GCC extension, "naming types", and
the documentation now directs users to use a different GCC extension,
__typeof__, instead. The feature had evidently been broken for a
while.
Otherwise, 3.2.1 is a bug fix release only; other than bug fixes and
the new warning there are no new features that were not present in GCC
3.2.
In addition, the previous fix for [128]PR 7445 (poor performance of
std::locale::classic() in multi-threaded applications) was reverted
("unfixed"), because the "fix" was not thread-safe.
Bug Fixes
This section lists the problem reports (PRs) from GCC's bug tracking
system that are known to be fixed in the 3.2.1 release. This list
might not be complete (that is, it is possible that some PRs that have
been fixed are not listed here). As you can see, the number of bug
fixes is quite large, so it is strongly recommended that users of
earlier GCC 3.x releases upgrade to GCC 3.2.1.
Internal Compiler Errors (multi-platform)
* [129]2521: (c++) ICE in build_ptrmemfunc, in cp/typeck.c
* [130]5661: (c++) ICE instantiating template on array of unknown
size (bad code)
* [131]6419: (c++) ICE in make_decl_rtl for "longest" attribute on
64-bit platforms
* [132]6994: (c++) ICE in find_function_data
* [133]7150: preprocessor: GCC -dM -E gives an ICE
* [134]7160: ICE when optimizing branches without a return value
* [135]7228: (c++) ICE when using member template and template
function
* [136]7266: (c++) ICE with -pedantic on missing typename
* [137]7353: ICE from use of "Naming Types" extension, see above
* [138]7411: ICE in instantiate_virtual_regs_1, in function.c
* [139]7478: (c++) ICE on static_cast inside template
* [140]7526: preprocessor core dump when _Pragma implies #pragma
dependency
* [141]7721: (c++) ICE on simple (but incorrect) template ([142]7803
is a duplicate)
* [143]7754: (c++) ICE on union with template parameter
* [144]7788: (c++) redeclaring a definition as an incomplete class
causes ICE
* [145]8031: (c++) ICE in comptypes, in cp/typeck.c
* [146]8055: preprocessor dies with SIG11 when building FreeBSD
kernel
* [147]8067: (c++) ICE due to mishandling of __FUNCTION__ and
related variables
* [148]8134: (c++) ICE in force_store_init_value on legal code
* [149]8149: (c++) ICE on incomplete type
* [150]8160: (c++) ICE in build_modify_expr, in cp/typeck.c: array
initialization
C++ (compiler and library) bugs
* [151]5607: No pointer adjustment in covariant return types
* [152]6579: Infinite loop with statement expressions in member
initialization
* [153]6803: Default copy constructor bug in GCC 3.1
* [154]7176: g++ confused by friend and static member with same name
* [155]7188: Segfault with template class and recursive (incorrect)
initializer list
* [156]7306: Regression: GCC 3.x fails to compile code with virtual
inheritance if a method has a variable number of arguments
* [157]7461: ctype<char>::classic_table() returns offset array on
Cygwin
* [158]7524: f(const float arg[3]) fails
* [159]7584: Erroneous ambiguous base error on using declaration
* [160]7676: Member template overloading problem
* [161]7679: infinite loop when a right parenthesis is missing
* [162]7811: default locale not taken from environment
* [163]7961: compare( char *) implemented incorrectly in
basic_string<>
* [164]8071: basic_ostream::operator<<(streambuf*) loops forever if
streambuf::underflow() leaves gptr() NULL (dups: [165]8127,
[166]6745)
* [167]8096: deque::at() throws std::range_error instead of
std::out_of_range
* [168]8127: cout << cin.rdbuf() infinite loop
* [169]8218: Excessively large memory consumed for classes with
large array members
* [170]8287: GCC 3.2: Destructor called for non-constructed local
object
* [171]8347: empty vector range used in string construction causes
core dump
* [172]8348: fail() flag is set in istringstream when eof() flag is
set
* [173]8391: regression: infinite loop in cp/decl2.c(finish_file)
C and optimizer bugs
* [174]6627: -fno-align-functions doesn't seem to disable function
alignment
* [175]6631: life_analysis misoptimizes code to initialize fields of
a structure
* [176]7102: unsigned char division results in floating exception
* [177]7120: Run once loop should *always* be unrolled
(pessimization)
* [178]7209: Bug involving array referencing and ?: operator
* [179]7515: invalid inlining of global function with -O3
* [180]7814: incorrect scheduling for glibc-2.2.92 strcpy test
* [181]8467: bug in sibling call optimization
Preprocessor bugs
* [182]4890: incorrect line markers from the traditional
preprocessor
* [183]7357: -M option omits system headers files (making it the
same as -MM)
* [184]7358: Changes to Sun's make Dependencies
* [185]7602: C++ header files found in CPLUS_INCLUDE_PATH treated as
C headers
* [186]7862: Interrupting GCC -MD removes .d file but not .o
* [187]8190: Failed compilation deletes -MD dependency file
* [188]8524: _Pragma within macro is improperly expanded
x86 specific (Intel/AMD)
* [189]5351: (i686-only) function pass-by-value structure copy
corrupts stack ([190]7591 is a duplicate)
* [191]6845, [192]7034, [193]7124, [194]7174: ICE's with
-march=pentium3/pentium2/athlon (these are all the same underlying
bug, in MMX register use)
* [195]7134, [196]7375, [197]7390: ICE with -march=athlon (maybe
same as above?)
* [198]6890: xmmintrin.h, _MM_TRANSPOSE4_PS is broken
* [199]6981: wrong code in 64-bit manipulation on x86
* [200]7242: GCC -mcpu=pentium[23] doesn't define
__tune_pentiumpro__ macro
* [201]7396: ix86: cmpgt_ss, cmpge_ss, cmpngt_ss, and cmpnge_ss SSE
intrinsics are broken
* [202]7630: GCC 3.2 breaks on Mozilla 1.0's JS sources with
-march=pentium4
* [203]7693: Typo in i386 mmintrin.h header
* [204]7723: ICE - Pentium3 sse - GCC 3.2
* [205]7951: ICE on -march=pentium4 -O2 -mfpmath=sse
* [206]8146: (i686 only) gcc 3.2 miscompiles gcc 2.95.3
PowerPC specific
* [207]5967: GCC bug when profiling nested functions on powerpc
* [208]6984: wrong code generated with -O2, -O3, -Os for do-while
loop on PowerPC
* [209]7114: PowerPC: ICE building strcoll.op from glibc-2.2.5
* [210]7130: miscompiled code for GCC-3.1 in powerpc linux with
-funroll-all-loops
* [211]7133: PowerPC ICE: unrecognizable insn
* [212]7380: ICE in extract_insn, at recog.c:2148
* [213]8252: ICE on Altivec code with optimization turned on
* [214]8451: Altivec ICE in GCC 3.2
HP/PA specific
* [215]7250: __ashrdi3 returns wrong value on 32 bit hppa
SPARC specific
* [216]6668: when using --disable-multilib, libgcc_s.so is installed
in the wrong place on sparc-solaris
* [217]7151: ICE when compiling for UltraSPARC
* [218]7335: SPARC: ICE in verify_wide_reg (flow.c:557) with long
double and -O1
* [219]7842: [REGRESSION] SPARC code gen bug
ARM specific
* [220]7856: [arm] invalid offset in constant pool reference
* [221]7967: optimization produces wrong code (ARM)
Alpha specific
* [222]7374: __builtin_fabsl broken on alpha
IBM s390 specific
* [223]7370: ICE in fixup_var_refs_1 on s390x
* [224]7409: loop optimization bug on s390x-linux-gnu
* [225]8232: s390x: ICE when using bcmp with int length argument
SCO specific
* [226]7623: SCO OpenServer build fails with machmode.def: undefined
symbol: BITS_PER_UNIT
m68k/Coldfire specific
* [227]8314: crtbegin, crtend need to be multilib'ed for this
platform
Documentation
* [228]761: Document some undocumented options
* [229]5610: Fix documentation about invoking SSE instructions
(-mfpmath=sse)
* [230]7484: List -Wmissing-declarations as C-only option
* [231]7531: -mcmodel not documented for x86-64
* [232]8120: Update documentation of bad use of ##
_________________________________________________________________
GCC 3.2
3.2 is a small bug fix release, but there is a change to the
application binary interface (ABI), hence the change to the second
part of the version number.
The main purpose of the 3.2 release is to correct a couple of problems
in the C++ ABI, with the intention of providing a stable interface
going forward. Accordingly, 3.2 is only a small change to 3.1.1.
Bug Fixes
C++
* [233]7320: g++ 3.2 relocation problem
* [234]7470: vtable: virtual function pointers not in declaration
order
libstdc++
* [235]6410: Trouble with non-ASCII monetary symbols and wchar_t
* [236]6503, [237]6642, [238]7186: Problems with comparing or
subtracting various types of const and non-const iterators
* [239]7216: ambiguity with basic_iostream::traits_type
* [240]7220: problem with basic_istream::ignore(0,delimiter)
* [241]7222: locale::operator==() doesn't work on std::locale("")
* [242]7286: placement operator delete issue
* [243]7442: cxxabi.h does not match the C++ ABI
* [244]7445: poor performance of std::locale::classic() in
multi-threaded applications
x86-64 specific
* [245]7291: off-by-one in generated inline bzero code for x86-64
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [246]gnu@gnu.org. There
are also [247]other ways to contact the FSF.
These pages are maintained by [248]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [249]GCC manuals. If that fails, the
[250]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [251]gcc@gnu.org or
[252]gcc@gcc.gnu.org. All of our lists have [253]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [254]Valid XHTML 1.0
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134. http://gcc.gnu.org/PR7160
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242. http://gcc.gnu.org/PR7286
243. http://gcc.gnu.org/PR7442
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246. mailto:gnu@gnu.org
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248. http://gcc.gnu.org/about.html
249. http://gcc.gnu.org/onlinedocs/
250. mailto:gcc-help@gcc.gnu.org
251. mailto:gcc@gnu.org
252. mailto:gcc@gcc.gnu.org
253. http://gcc.gnu.org/lists.html
254. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.1/index.html
GCC 3.1
July 27, 2002
The [1]GNU project and the GCC developers are pleased to announce the
release of GCC 3.1.1.
The links below still apply to GCC 3.1.1.
May 15, 2002
The [2]GNU project and the GCC developers are pleased to announce the
release of GCC 3.1.
GCC used to stand for the GNU C Compiler, but since the compiler
supports several other languages aside from C, it now stands for the
GNU Compiler Collection.
A list of [3]successful builds is updated as new information becomes
available.
The GCC developers would like to thank the numerous people that have
contributed [4]new features, improvements, bug fixes, and other
changes as well as test results to GCC. This [5]amazing group of
volunteers is what makes GCC successful.
For additional information about GCC please refer to the [6]GCC
project web site or contact the [7]GCC development mailing list.
To obtain GCC please use [8]our mirror sites, one of the [9]GNU mirror
sites, or [10]our CVS server.
_________________________________________________________________
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [11]gnu@gnu.org. There
are also [12]other ways to contact the FSF.
These pages are maintained by [13]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [14]GCC manuals. If that fails, the
[15]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [16]gcc@gnu.org or
[17]gcc@gcc.gnu.org. All of our lists have [18]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [19]Valid XHTML 1.0
References
1. http://www.gnu.org/
2. http://www.gnu.org/
3. http://gcc.gnu.org/gcc-3.1/buildstat.html
4. http://gcc.gnu.org/gcc-3.1/changes.html
5. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
6. http://gcc.gnu.org/index.html
7. mailto:gcc@gcc.gnu.org
8. http://gcc.gnu.org/mirrors.html
9. http://www.gnu.org/order/ftp.html
10. http://gcc.gnu.org/cvs.html
11. mailto:gnu@gnu.org
12. http://www.gnu.org/home.html#ContactInfo
13. http://gcc.gnu.org/about.html
14. http://gcc.gnu.org/onlinedocs/
15. mailto:gcc-help@gcc.gnu.org
16. mailto:gcc@gnu.org
17. mailto:gcc@gcc.gnu.org
18. http://gcc.gnu.org/lists.html
19. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.1/changes.html
GCC 3.1 Release Series
Changes, New Features, and Fixes
Additional changes in GCC 3.1.1
* A bug related to how structures and unions are returned has been
fixed for powerpc-*-netbsd*.
* An important bug in the implementation of -fprefetch-loop-arrays
has been fixed. Previously the optimization prefetched random
blocks of memory for most targets except for i386.
* The Java compiler now compiles Java programs much faster and also
works with parallel make.
* Nested functions have been fixed for mips*-*-netbsd*.
* Some missing floating point support routines have beed added for
mips*-*-netbsd*.
* This [1]message gives additional information about the bugs fixed
in this release.
Caveats
* The -traditional C compiler option has been deprecated and will be
removed in GCC 3.3. (It remains possible to preprocess non-C code
with the traditional preprocessor.)
* The default debugging format for most ELF platforms (including
GNU/Linux and FreeBSD; notable exception is Solaris) has changed
from stabs to DWARF2. This requires GDB 5.1.1 or later.
General Optimizer Improvements
* Jan Hubicka, SuSE Labs, together with Richard Henderson, Red Hat,
and Andreas Jaeger, SuSE Labs, has contributed [2]infrastructure
for profile driven optimizations.
Options -fprofile-arcs and -fbranch-probabilities can now be used
to improve speed of the generated code by profiling the actual
program behaviour on typical runs. In the absence of profile info
the compiler attempts to guess the profile statically.
* [3]SPEC2000 and SPEC95 benchmark suites are now used daily to
monitor performance of the generated code.
According to the SPECInt2000 results on an AMD Athlon CPU, the
code generated by GCC 3.1 is 6% faster on the average (8.2% faster
with profile feedback) compared to GCC 3.0. The code produced by
GCC 3.0 is about 2.1% faster compared to 2.95.3. Tests were done
using the -O2 -march=athlon command-line options.
* Alexandre Oliva, of Red Hat, has generalized the tree inlining
infrastructure developed by CodeSourcery, LLC for the C++ front
end, so that it is now used in the C front end too. Inlining
functions as trees exposes them earlier to the compiler, giving it
more opportunities for optimization.
* Support for data prefetching instructions has been added to the
GCC back end and several targets. A new __builtin_prefetch
intrinsic is available to explicitly insert prefetch instructions
and experimental support for loop array prefetching has been added
(see -fprefetch-loop-array documentation).
* Support for emitting debugging information for macros has been
added for DWARF2. It is activated using -g3.
New Languages and Language specific improvements
C/C++
* A few more [4]ISO C99 features.
* The preprocessor is 10-50% faster than the preprocessor in GCC
3.0.
* The preprocessor's symbol table has been merged with the symbol
table of the C, C++ and Objective-C front ends.
* The preprocessor consumes less memory than the preprocessor in GCC
3.0, often significantly so. On normal input files, it typically
consumes less memory than pre-3.0 cccp-based GCC, too.
C++
* -fhonor-std and -fno-honor-std have been removed. -fno-honor-std
was a workaround to allow std compliant code to work with the
non-std compliant libstdc++-v2. libstdc++-v3 is std compliant.
* The C++ ABI has been fixed so that void (A::*)() const is mangled
as "M1AKFvvE", rather than "MK1AFvvE" as before. This change only
affects pointer to cv-qualified member function types.
* The C++ ABI has been changed to correctly handle this code:
struct A {
void operator delete[] (void *, size_t);
};
struct B : public A {
};
new B[10];
The amount of storage allocated for the array will be greater than
it was in 3.0, in order to store the number of elements in the
array, so that the correct size can be passed to operator delete[]
when the array is deleted. Previously, the value passed to
operator delete[] was unpredictable.
This change will only affect code that declares a two-argument
operator delete[] with a second parameter of type size_t in a base
class, and does not override that definition in a derived class.
* The C++ ABI has been changed so that:
struct A {
void operator delete[] (void *, size_t);
void operator delete[] (void *);
};
does not cause unnecessary storage to be allocated when an array
of A objects is allocated.
This change will only affect code that declares both of these
forms of operator delete[], and declared the two-argument form
before the one-argument form.
* The C++ ABI has been changed so that when a parameter is passed by
value, any cleanup for that parameter is performed in the caller,
as specified by the ia64 C++ ABI, rather than the called function
as before. As a result, classes with a non-trivial destructor but
a trivial copy constructor will be passed and returned by
invisible reference, rather than by bitwise copy as before.
* G++ now supports the "named return value optimization": for code
like
A f () {
A a;
...
return a;
}
G++ will allocate a in the return value slot, so that the return
becomes a no-op. For this to work, all return statements in the
function must return the same variable.
* Improvements to the C++ library are listed in [5]the libstdc++-v3
FAQ.
Objective-C
* Annoying linker warnings (due to incorrect code being generated)
have been fixed.
* If a class method cannot be found, the compiler no longer issues a
warning if a corresponding instance method exists in the root
class.
* Forward @protocol declarations have been fixed.
* Loading of categories has been fixed in certain situations (GNU
run time only).
* The class lookup in the run-time library has been rewritten so
that class method dispatch is more than twice as fast as it used
to be (GNU run time only).
Java
* libgcj now includes RMI, java.lang.ref.*, javax.naming, and
javax.transaction.
* Property files and other system resources can be compiled into
executables which use libgcj using the new gcj --resource feature.
* libgcj has been ported to more platforms. In particular there is
now a mostly-functional mingw32 (Windows) target port.
* JNI and CNI invocation interfaces were implemented, so
gcj-compiled Java code can now be called from a C/C++ application.
* gcj can now use builtin functions for certain known methods, for
instance Math.cos.
* gcj can now automatically remove redundant array-store checks in
some common cases.
* The --no-store-checks optimization option was added. This can be
used to omit runtime store checks for code which is known not to
throw ArrayStoreException
* The following third party interface standards were added to
libgcj: org.w3c.dom and org.xml.sax.
* java.security has been merged with GNU Classpath. The new package
is now JDK 1.2 compliant, and much more complete.
* A bytecode verifier was added to the libgcj interpreter.
* java.lang.Character was rewritten to comply with the Unicode 3.0
standard, and improve performance.
* Partial support for many more locales was added to libgcj.
* Socket timeouts have been implemented.
* libgcj has been merged into a single shared library. There are no
longer separate shared libraries for the garbage collector and
zlib.
* Several performance improvements were made to gcj and libgcj:
+ Hash synchronization (thin locks)
+ A special allocation path for finalizer-free objects
+ Thread-local allocation
+ Parallel GC, and other GC tweaks
Fortran
Fortran improvements are listed in [6]the Fortran documentation.
Ada
[7]Ada Core Technologies, Inc, has contributed its GNAT Ada 95 front
end and associated tools. The GNAT compiler fully implements the Ada
language as defined by the ISO/IEC 8652 standard.
Please note that the integration of the Ada front end is still work in
progress.
New Targets and Target Specific Improvements
* Hans-Peter Nilsson has contributed a port to [8]MMIX, the CPU
architecture used in new editions of Donald E. Knuth's The Art of
Computer Programming.
* [9]Axis Communications has contributed its port to the CRIS CPU
architecture, used in the ETRAX system-on-a-chip series. See
[10]Axis' developer site for technical information.
* Alexandre Oliva, of Red Hat, has contributed a port to the
[11]SuperH SH5 64-bit RISC microprocessor architecture, extending
the existing SH port.
* UltraSPARC is fully supported in 64-bit mode. The option -m64
enables it.
* For compatibility with the Sun compiler #pragma redefine_extname
has been implemented on Solaris.
* The x86 back end has had some noticeable work done to it.
+ SuSE Labs developers Jan Hubicka, Bo Thorsen and Andreas
Jaeger have contributed a port to the AMD x86-64
architecture. For more information on x86-64 see
[12]http://www.x86-64.org.
+ The compiler now supports MMX, 3DNow!, SSE, and SSE2
instructions. Options -mmmx, -m3dnow, -msse, and -msse2 will
enable the respective instruction sets. Intel C++ compatible
MMX/3DNow!/SSE intrinsics are implemented. SSE2 intrinsics
will be added in next major release.
+ Following those improvements, targets for Pentium MMX, K6-2,
K6-3, Pentium III, Pentium 4, and Athlon 4 Mobile/XP/MP were
added. Refer to the documentation on -march= and -mcpu=
options for details.
+ For those targets that support it, -mfpmath=sse will cause
the compiler to generate SSE/SSE2 instructions for floating
point math instead of x87 instructions. Usually, this will
lead to quicker code -- especially on the Pentium 4. Note
that only scalar floating point instructions are used and GCC
does not exploit SIMD features yet.
+ Prefetch support has been added to the Pentium III, Pentium
4, K6-2, K6-3, and Athlon series.
+ Code generated for floating point to integer conversions has
been improved leading to better performance of many 3D
applications.
* The PowerPC back end has added 64-bit PowerPC GNU/Linux support.
* C++ support for AIX has been improved.
* Aldy Hernandez, of Red Hat, Inc, has contributed extensions to the
PowerPC port supporting the AltiVec programming model (SIMD). The
support, though presently useful, is experimental and is expected
to stabilize for 3.2. The support is written to conform to
Motorola's AltiVec specs. See -maltivec.
Obsolete Systems
Support for a number of older systems has been declared obsolete in
GCC 3.1. Unless there is activity to revive them, the next release of
GCC will have their sources permanently removed.
All configurations of the following processor architectures have been
declared obsolete:
* MIL-STD-1750A, 1750a-*-*
* AMD A29k, a29k-*-*
* Convex, c*-convex-*
* Clipper, clipper-*-*
* Elxsi, elxsi-*-*
* Intel i860, i860-*-*
* Sun picoJava, pj-*-* and pjl-*-*
* Western Electric 32000, we32k-*-*
Most configurations of the following processor architectures have been
declared obsolete, but we are preserving a few systems which may have
active developers. It is unlikely that the remaining systems will
survive much longer unless we see definite signs of port activity.
* Motorola 88000 except
+ Generic a.out, m88k-*-aout*
+ Generic SVR4, m88k-*-sysv4
+ OpenBSD, m88k-*-openbsd*
* NS32k except
+ NetBSD, ns32k-*-netbsd*
+ OpenBSD, ns32k-*-openbsd*.
* ROMP except
+ OpenBSD, romp-*-openbsd*.
Finally, only some configurations of these processor architectures are
being obsoleted.
* Alpha:
+ OSF/1, alpha*-*-osf[123]*. (Digital Unix and Tru64 Unix, aka
alpha*-*-osf[45], are still supported.)
* ARM:
+ RISCiX, arm-*-riscix*.
* i386:
+ 386BSD, i?86-*-bsd*
+ Chorus, i?86-*-chorusos*
+ DG/UX, i?86-*-dgux*
+ FreeBSD 1.x, i?86-*-freebsd1.*
+ IBM AIX, i?86-*-aix*
+ ISC UNIX, i?86-*-isc*
+ Linux with pre-BFD linker, i?86-*-linux*oldld*
+ NEXTstep, i?86-next-*
+ OSF UNIX, i?86-*-osf1* and i?86-*-osfrose*
+ RTEMS/coff, i?86-*-rtemscoff*
+ RTEMS/go32, i?86-go32-rtems*
+ Sequent/BSD, i?86-sequent-bsd*
+ Sequent/ptx before version 3, i?86-sequent-ptx[12]* and
i?86-sequent-sysv3*
+ SunOS, i?86-*-sunos*
* Motorola 68000:
+ Altos, m68[k0]*-altos-*
+ Apollo, m68[k0]*-apollo-*
+ Apple A/UX, m68[k0]*-apple-*
+ Bull, m68[k0]*-bull-*
+ Convergent, m68[k0]*-convergent-*
+ Generic SVR3, m68[k0]*-*-sysv3*
+ ISI, m68[k0]*-isi-*
+ LynxOS, m68[k0]*-*-lynxos*
+ NEXT, m68[k0]*-next-*
+ RTEMS/coff, m68[k0]*-*-rtemscoff*
+ Sony, m68[k0]*-sony-*
* MIPS:
+ DEC Ultrix, mips-*-ultrix* and mips-dec-*
+ Generic BSD, mips-*-bsd*
+ Generic System V, mips-*-sysv*
+ IRIX before version 5, mips-sgi-irix[1234]*
+ RiscOS, mips-*-riscos*
+ Sony, mips-sony-*
+ Tandem, mips-tandem-*
* SPARC:
+ RTEMS/a.out, sparc-*-rtemsaout*.
Documentation improvements
* The old manual ("Using and Porting the GNU Compiler Collection")
has been replaced by a users manual ("Using the GNU Compiler
Collection") and a separate internals reference manual ("GNU
Compiler Collection Internals").
* More complete and much improved documentation about GCC's internal
representation used by the C and C++ front ends.
* Many cleanups and improvements in general.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [13]gnu@gnu.org. There
are also [14]other ways to contact the FSF.
These pages are maintained by [15]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [16]GCC manuals. If that fails, the
[17]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [18]gcc@gnu.org or
[19]gcc@gcc.gnu.org. All of our lists have [20]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [21]Valid XHTML 1.0
References
1. http://gcc.gnu.org/ml/gcc/2002-07/msg01208.html
2. http://gcc.gnu.org/news/profiledriven.html
3. http://gcc.gnu.org/benchmarks/
4. http://gcc.gnu.org/gcc-3.1/c99status.html
5. http://gcc.gnu.org/onlinedocs/libstdc++/faq/index.html#4_1
6. http://gcc.gnu.org/onlinedocs/g77/News.html
7. http://www.gnat.com/
8. http://www-cs-faculty.stanford.edu/~knuth/mmix.html
9. http://www.axis.com/
10. http://developer.axis.com/
11. http://www.superh.com/
12. http://www.x86-64.org/
13. mailto:gnu@gnu.org
14. http://www.gnu.org/home.html#ContactInfo
15. http://gcc.gnu.org/about.html
16. http://gcc.gnu.org/onlinedocs/
17. mailto:gcc-help@gcc.gnu.org
18. mailto:gcc@gnu.org
19. mailto:gcc@gcc.gnu.org
20. http://gcc.gnu.org/lists.html
21. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.0/gcc-3.0.html
GCC 3.0.4
February 20, 2002
The [1]GNU project and the GCC developers are pleased to announce the
release of GCC 3.0.4, which is a bug-fix release for the GCC 3.0
series.
GCC used to stand for the GNU C Compiler, but since the compiler
supports several other languages aside from C, it now stands for the
GNU Compiler Collection.
GCC 3.0.x has several new optimizations, new targets, new languages
and many other new features, relative to GCC 2.95.x. See the [2]new
features page for a more complete list.
A list of [3]successful builds is updated as new information becomes
available.
The GCC developers would like to thank the numerous people that have
contributed new features, test results, bugfixes, etc to GCC. This
[4]amazing group of volunteers is what makes GCC successful.
And finally, we can't in good conscience fail to mention some
[5]caveats to using GCC 3.0.x.
For additional information about GCC please refer to the [6]GCC
project web site or contact the [7]GCC development mailing list.
To obtain GCC please use [8]our mirror sites, one of the [9]GNU mirror
sites, or [10]our CVS server.
_________________________________________________________________
Previous 3.0.x Releases
December 20, 2001: GCC 3.0.3 has been released.
October 25, 2001: GCC 3.0.2 has been released.
August 20, 2001: GCC 3.0.1 has been released.
June 18, 2001: GCC 3.0 has been released.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [11]gnu@gnu.org. There
are also [12]other ways to contact the FSF.
These pages are maintained by [13]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [14]GCC manuals. If that fails, the
[15]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [16]gcc@gnu.org or
[17]gcc@gcc.gnu.org. All of our lists have [18]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [19]Valid XHTML 1.0
References
1. http://www.gnu.org/
2. http://gcc.gnu.org/gcc-3.0/features.html
3. http://gcc.gnu.org/gcc-3.0/buildstat.html
4. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
5. http://gcc.gnu.org/gcc-3.0/caveats.html
6. http://gcc.gnu.org/index.html
7. mailto:gcc@gcc.gnu.org
8. http://gcc.gnu.org/mirrors.html
9. http://www.gnu.org/order/ftp.html
10. http://gcc.gnu.org/cvs.html
11. mailto:gnu@gnu.org
12. http://www.gnu.org/home.html#ContactInfo
13. http://gcc.gnu.org/about.html
14. http://gcc.gnu.org/onlinedocs/
15. mailto:gcc-help@gcc.gnu.org
16. mailto:gcc@gnu.org
17. mailto:gcc@gcc.gnu.org
18. http://gcc.gnu.org/lists.html
19. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.0/features.html
GCC 3.0 New Features
Additional changes in GCC 3.0.4
* GCC 3.0 now supports newer versions of the [1]NetBSD operating
system, which use the ELF object file format, on x86 processors.
* Correct debugging information is generated from functions that
have lines from multiple files (e.g. yacc output).
* A fix for whitespace handling in the -traditional preprocessor,
which can affect Fortran.
* Fixes to the exception handling runtime.
* More fixes for bad code generation in C++.
* A fix for shared library generation under AIX 4.3.
* Documentation updates.
* Port of GCC to Tensilica's Xtensa processor contributed.
* A fix for compiling the PPC Linux kernel (FAT fs wouldn't link).
Additional changes in GCC 3.0.3
* A fix to correct an accidental change to the PowerPC ABI.
* Fixes for bad code generation on a variety of architectures.
* Improvements to the debugging information generated for C++
classes.
* Fixes for bad code generation in C++.
* A fix to avoid crashes in the C++ demangler.
* A fix to the C++ standard library to avoid buffer overflows.
* Miscellaneous improvements for a variety of architectures.
Additional changes in GCC 3.0.2
* Fixes for bad code generation during loop unrolling.
* Fixes for bad code generation by the sibling call optimization.
* Minor improvements to x86 code generation.
* Implementation of function descriptors in C++ vtables for IA64.
* Numerous minor bug-fixes.
Additional changes in GCC 3.0.1
* C++ fixes for incorrect code-generation.
* Improved cross-compiling support for the C++ standard library.
* Fixes for some embedded targets that worked in GCC 2.95.3, but not
in GCC 3.0.
* Fixes for various exception-handling bugs.
* A port to the S/390 architecture.
General Optimizer Improvements
* [2]Basic block reordering pass.
* New if-conversion pass with support for conditional (predicated)
execution.
* New tail call and sibling call elimination optimizations.
* New register renaming pass.
* New (experimental) [3]static single assignment (SSA)
representation support.
* New dead-code elimination pass implemented using the SSA
representation.
* [4]Global null pointer test elimination.
* [5]Global code hoisting/unification.
* More builtins and optimizations for stdio.h, string.h and old BSD
functions, as well as for ISO C99 functions.
* New builtin __builtin_expect for giving hints to the branch
predictor.
New Languages and Language specific improvements
* The GNU Compiler for the Java(TM) language (GCJ) is now integrated
and supported, including the run-time library containing most
common non-GUI Java classes, a bytecode interpreter, and the Boehm
conservative garbage collector. Many bugs have been fixed. GCJ can
compile Java source or Java bytecodes to either native code or
Java class files, and supports native methods written in either
the standard JNI or the more efficient and convenient CNI.
* Here is a [6]partial list of C++ improvements, both new features
and those no longer supported.
* New C++ ABI. On the IA-64 platform GCC is capable of
inter-operating with other IA-64 compilers.
* The new ABI also significantly reduces the size of symbol and
debug information.
* New [7]C++ support library and many C++ bug fixes, vastly
improving our conformance to the ISO C++ standard.
* New [8]inliner for C++.
* Rewritten C preprocessor, integrated into the C, C++ and Objective
C compilers, with very many improvements including ISO C99 support
and [9]improvements to dependency generation.
* Support for more [10]ISO C99 features.
* Many improvements to support for checking calls to format
functions such as printf and scanf, including support for ISO C99
format features, extensions from the Single Unix Specification and
GNU libc 2.2, checking of strfmon formats and features to assist
in auditing for format string security bugs.
* New warnings for C code that may have undefined semantics because
of violations of sequence point rules in the C standard (such as a
= a++;, a[n] = b[n++]; and a[i++] = i;), included in -Wall.
* Additional warning option -Wfloat-equal.
* Improvements to -Wtraditional.
* Fortran improvements are listed in [11]the Fortran documentation.
New Targets and Target Specific Improvements
* New x86 back-end, generating much improved code.
* Support for a generic i386-elf target contributed.
* New option to emit x86 assembly code using Intel style syntax
(-mintel-syntax).
* HPUX 11 support contributed.
* Improved PowerPC code generation, including scheduled prologue and
epilogue.
* Port of GCC to Intel's IA-64 processor contributed.
* Port of GCC to Motorola's MCore 210 and 340 contributed.
* New unified back-end for Arm, Thumb and StrongArm contributed.
* Port of GCC to Intel's XScale processor contributed.
* Port of GCC to Atmel's AVR microcontrollers contributed.
* Port of GCC to Mitsubishi's D30V processor contributed.
* Port of GCC to Matsushita's AM33 processor (a member of the
MN10300 processor family) contributed.
* Port of GCC to Fujitsu's FR30 processor contributed.
* Port of GCC to Motorola's 68HC11 and 68HC12 processors
contributed.
* Port of GCC to Sun's picoJava processor core contributed.
Documentation improvements
* Substantially rewritten and improved C preprocessor manual.
* Many improvements to other documentation.
* Manpages for gcc, cpp and gcov are now generated automatically
from the master Texinfo manual, eliminating the problem of
manpages being out of date. (The generated manpages are only
extracts from the full manual, which is provided in Texinfo form,
from which info, HTML, other formats and a printed manual can be
generated.)
* Generated info files are included in the release tarballs
alongside their Texinfo sources, avoiding problems on some
platforms with building makeinfo as part of the GCC distribution.
Other significant improvements
* Garbage collection used internally by the compiler for most memory
allocation instead of obstacks.
* Lengauer and Tarjan algorithm used for computing dominators in the
CFG. This algorithm can be significantly faster and more space
efficient than our older algorithm.
* gccbug script provided to assist in submitting bug reports to our
bug tracking system. (Bug reports previously submitted directly to
our mailing lists, for which you received no bug tracking number,
should be submitted again using gccbug if you can reproduce the
problem with GCC 3.0.)
* The internal libgcc library is [12]built as a shared library on
systems that support it.
* Extensive testsuite included with GCC, with many new tests. In
addition to tests for GCC bugs that have been fixed, many tests
have been added for language features, compiler warnings and
builtin functions.
* Additional language-independent warning options -Wpacked,
-Wpadded, -Wunreachable-code and -Wdisabled-optimization.
* Target-independent options -falign-functions, -falign-loops and
-falign-jumps.
Plus a great many bugfixes and almost all the [13]features found in
GCC 2.95.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [14]gnu@gnu.org. There
are also [15]other ways to contact the FSF.
These pages are maintained by [16]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [17]GCC manuals. If that fails, the
[18]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [19]gcc@gnu.org or
[20]gcc@gcc.gnu.org. All of our lists have [21]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [22]Valid XHTML 1.0
References
1. http://www.netbsd.org/
2. http://gcc.gnu.org/news/reorder.html
3. http://gcc.gnu.org/news/ssa.html
4. http://gcc.gnu.org/news/null.html
5. http://gcc.gnu.org/news/unify.html
6. http://gcc.gnu.org/gcc-3.0/c++features.html
7. http://gcc.gnu.org/libstdc++/
8. http://gcc.gnu.org/news/inlining.html
9. http://gcc.gnu.org/news/dependencies.html
10. http://gcc.gnu.org/gcc-3.0/c99status.html
11. http://gcc.gnu.org/onlinedocs/g77/News.html
12. http://gcc.gnu.org/gcc-3.0/libgcc.html
13. http://gcc.gnu.org/gcc-2.95/features.html
14. mailto:gnu@gnu.org
15. http://www.gnu.org/home.html#ContactInfo
16. http://gcc.gnu.org/about.html
17. http://gcc.gnu.org/onlinedocs/
18. mailto:gcc-help@gcc.gnu.org
19. mailto:gcc@gnu.org
20. mailto:gcc@gcc.gnu.org
21. http://gcc.gnu.org/lists.html
22. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-3.0/caveats.html
GCC 3.0 Caveats
* -fstrict-aliasing is now part of -O2 and higher optimization
levels. This allows the compiler to assume the strictest aliasing
rules applicable to the language being compiled. For C and C++,
this activates optimizations based on the type of expressions.
This optimization may thus break old, non-compliant code.
* Enumerations are now properly promoted to int in function
parameters and function returns. Normally this change is not
visible, but when using -fshort-enums this is an ABI change.
* The undocumented extension that allowed C programs to have a label
at the end of a compound statement has been deprecated and may be
removed in a future version. Programs that now generate a warning
about this may be fixed by adding a null statement (a single
semicolon) after the label.
* The poorly documented extension that allowed string constants in
C, C++ and Objective C to contain unescaped newlines has been
deprecated and may be removed in a future version. Programs using
this extension may be fixed in several ways: the bare newline may
be replaced by \n, or preceded by \n\, or string concatenation may
be used with the bare newline preceded by \n" and " placed at the
start of the next line.
* The Chill compiler is not included in GCC 3.0, because of the lack
of a volunteer to convert it to use garbage collection.
* Certain non-standard iostream methods from earlier versions of
libstdc++ are not included in libstdc++ v3, i.e. filebuf::attach,
ostream::form, and istream::gets. Here are workaround hints for:
[1]ostream::form, [2]filebuf::attach.
* The new C++ ABI is not yet fully supported by current (as of
2001-07-01) releases and development versions of GDB, or any
earlier versions. There is a problem setting breakpoints by line
number, and other related issues that have been fixed in GCC 3.0
but not yet handled in GDB:
[3]http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00421.html
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [4]gnu@gnu.org. There
are also [5]other ways to contact the FSF.
These pages are maintained by [6]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [7]GCC manuals. If that fails, the
[8]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [9]gcc@gnu.org or
[10]gcc@gcc.gnu.org. All of our lists have [11]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [12]Valid XHTML 1.0
References
1. http://gcc.gnu.org/onlinedocs/libstdc++/21_strings/howto.html
2. http://gcc.gnu.org/onlinedocs/libstdc++/ext/howto.html
3. http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00421.html
4. mailto:gnu@gnu.org
5. http://www.gnu.org/home.html#ContactInfo
6. http://gcc.gnu.org/about.html
7. http://gcc.gnu.org/onlinedocs/
8. mailto:gcc-help@gcc.gnu.org
9. mailto:gcc@gnu.org
10. mailto:gcc@gcc.gnu.org
11. http://gcc.gnu.org/lists.html
12. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-2.95/index.html
GCC 2.95
July 31, 1999: The GNU project and the GCC/EGCS developers are pleased
to announce the release of GCC version 2.95. This is the first release
of GCC since the April 1999 GCC/EGCS reunification and includes nearly
a year's worth of new development and bugfixes.
August 19, 1999: GCC version 2.95.1 has been released.
October 27, 1999: GCC version 2.95.2 has been released.
March 16, 2001: GCC version 2.95.3 has been released.
GCC used to stand for the GNU C Compiler, but since the compiler
supports several other languages aside from C, it now stands for the
GNU Compiler Collection.
The whole suite has been extensively [1]regression tested and
[2]package tested. It should be reliable and suitable for widespread
use.
The compiler has several new optimizations, new targets, new languages
and other new features. See the [3]new features page for a more
complete list of new features found in the GCC 2.95 releases.
The sources include installation instructions in both HTML and
plaintext forms in the install directory in the distribution. However,
the most up to date [4]installation instructions and [5]build/test
status are on the web pages. We will update those pages as new
information becomes available.
The GCC developers would like to thank the numerous people that have
contributed new features, test results, bugfixes, etc to GCC. This
[6]amazing group of volunteers is what makes GCC successful.
And finally, we can't in good conscience fail to mention some
[7]caveats to using GCC 2.95.
Download GCC 2.95 from the [8]GNU FTP server (ftp://ftp.gnu.org)
[9]Find a GNU mirror site
[10]Find a GCC mirror site
For additional information about GCC please see the [11]GCC project
web server or contact the [12]GCC development mailing list.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [13]gnu@gnu.org. There
are also [14]other ways to contact the FSF.
These pages are maintained by [15]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [16]GCC manuals. If that fails, the
[17]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [18]gcc@gnu.org or
[19]gcc@gcc.gnu.org. All of our lists have [20]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [21]Valid XHTML 1.0
References
1. http://gcc.gnu.org/gcc-2.95/regress.html
2. http://gcc.gnu.org/gcc-2.95/othertest.html
3. http://gcc.gnu.org/gcc-2.95/features.html
4. http://gcc.gnu.org/install/
5. http://gcc.gnu.org/gcc-2.95/buildstat.html
6. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
7. http://gcc.gnu.org/gcc-2.95/caveats.html
8. ftp://ftp.gnu.org/pub/gnu/gcc/
9. http://www.gnu.org/order/ftp.html
10. http://gcc.gnu.org/mirrors.html
11. http://gcc.gnu.org/index.html
12. mailto:gcc@gcc.gnu.org
13. mailto:gnu@gnu.org
14. http://www.gnu.org/home.html#ContactInfo
15. http://gcc.gnu.org/about.html
16. http://gcc.gnu.org/onlinedocs/
17. mailto:gcc-help@gcc.gnu.org
18. mailto:gcc@gnu.org
19. mailto:gcc@gcc.gnu.org
20. http://gcc.gnu.org/lists.html
21. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-2.95/features.html
GCC 2.95 New Features
* General Optimizer Improvements:
+ [1]Localized register spilling to improve speed and code
density especially on small register class machines.
+ [2]Global CSE using lazy code motion algorithms.
+ [3]Improved global constant/copy propagation.
+ [4]Improved control flow graph analysis and manipulation.
+ [5]Local dead store elimination.
+ [6]Memory Load hoisting/store sinking in loops.
+ [7]Type based alias analysis is enabled by default. Note this
feature will expose bugs in the Linux kernel. Please refer to
the FAQ (as shipped with GCC 2.95) for additional information
on this issue.
+ Major revamp of GIV detection, combination and simplification
to improve loop performance.
+ Major improvements to register allocation and reloading.
* New Languages and Language specific improvements
+ [8]Many C++ improvements.
+ [9]Many Fortran improvements.
+ [10]Java front-end has been integrated. [11]runtime library
is available separately.
+ [12]ISO C99 support
+ [13]Chill front-end and runtime has been integrated.
+ Boehm garbage collector support in libobjc.
+ More support for various pragmas which appear in vendor
include files
* New Targets and Target Specific Improvements
+ [14]SPARC backend rewrite.
+ -mschedule=8000 will optimize code for PA8000 class
processors; -mpa-risc-2-0 will generate code for PA2.0
processors
+ Various micro-optimizations for the ia32 port. K6
optimizations
+ Compiler will attempt to align doubles in the stack on the
ia32 port
+ Alpha EV6 support
+ PowerPC 750
+ RS6000/PowerPC: -mcpu=401 was added as an alias for
-mcpu=403. -mcpu=e603e was added to do -mcpu=603e and
-msoft-float.
+ c3x, c4x
+ HyperSPARC
+ SparcLite86x
+ sh4
+ Support for new systems (OpenBSD, FreeBSD, UWIN, Interix,
arm-linux)
+ vxWorks targets include support for vxWorks threads
+ StrongARM 110 and ARM9 support added. ARM Scheduling
parameters rewritten.
+ Various changes to the MIPS port to avoid assembler macros,
which in turn improves performance
+ Various performance improvements to the i960 port.
+ Major rewrite of ns32k port
* Other significant improvements
+ [15]Ability to dump cfg information and display it using vcg.
+ The new faster scheme for fixing vendor header files is
enabled by default.
+ Experimental internationalization support.
+ multibyte character support
+ Some compile-time speedups for pathological problems
+ Better support for complex types
* Plus the usual mountain of bugfixes
* Core compiler is based on the gcc2 development tree from Sept 30,
1998, so we have all of the [16]features found in GCC 2.8.
Additional Changes in GCC 2.95.1
* Generic bugfixes and improvements
+ Various documentation fixes related to the GCC/EGCS merger.
+ Fix memory management bug which could lead to spurious
aborts, core dumps or random parsing errors in the compiler.
+ Fix a couple bugs in the dwarf1 and dwarf2 debug record
support.
+ Fix infinite loop in the CSE optimizer.
+ Avoid undefined behavior in compiler FP emulation code
+ Fix install problem when prefix is overridden on the make
install command.
+ Fix problem with unwanted installation of assert.h on some
systems.
+ Fix problem with finding the wrong assembler in a single tree
build.
+ Avoid increasing the known alignment of a register that is
already known to be a pointer.
* Platform specific bugfixes and improvements
+ Codegen bugfix for prologue/epilogue for cpu32 target.
+ Fix long long code generation bug for the Coldfire target.
+ Fix various aborts in the SH compiler.
+ Fix bugs in libgcc support library for the SH.
+ Fix alpha ev6 code generation bug.
+ Fix problems with EXIT_SUCCESS/EXIT_FAILURE redefinitions on
AIX platforms.
+ Fix -fpic code generation bug for rs6000/ppc svr4 targets.
+ Fix varargs/stdarg code generation bug for rs6000/ppc svr4
targets.
+ Fix weak symbol handling for rs6000/ppc svr4 targets.
+ Fix various problems with 64bit code generation for the
rs6000/ppc port.
+ Fix codegen bug which caused tetex to be mis-compiled on the
x86.
+ Fix compiler abort in new cfg code exposed by x86 port.
+ Fix out of range array reference in code convert flat
registers to the x87 stacked FP register file.
+ Fix minor vxworks configuration bug.
+ Fix return type of bsearch for SunOS 4.x.
* Language & Runtime specific fixes.
+ The G++ signature extension has been deprecated. It will be
removed in the next major release of G++. Use of signatures
will result in a warning from the compiler.
+ Several bugs relating to templates and namespaces were fixed.
+ A bug that caused crashes when combining templates with -g on
DWARF1 platforms was fixed.
+ Pointers-to-members, virtual functions, and multiple
inheritance should now work together correctly.
+ Some code-generation bugs relating to function try blocks
were fixed.
+ G++ is a little bit more lenient with certain archaic
constructs than in GCC 2.95.
+ Fix to prevent shared library version #s from bring truncated
to 1 digit
+ Fix missing std:: in the libstdc++ library.
+ Fix stream locking problems in libio.
+ Fix problem in java compiler driver.
Additional Changes in GCC 2.95.2
The -fstrict-aliasing is not enabled by default for GCC 2.95.2. While
the optimizations performed by -fstrict-aliasing are valid according
to the C and C++ standards, the optimization have caused some
problems, particularly with old non-conforming code.
The GCC developers are experimenting with ways to warn users about
code which violates the C/C++ standards, but those warnings are not
ready for widespread use at this time. Rather than wait for those
warnings the GCC developers have chosen to disable -fstrict-aliasing
by default for the GCC 2.95.2 release.
We strongly encourage developers to find and fix code which violates
the C/C++ standards as -fstrict-aliasing may be enabled by default in
future releases. Use the option -fstrict-aliasing to re-enable these
optimizations.
* Generic bugfixes and improvements
+ Fix incorrectly optimized memory reference in global common
subexpression elimination (GCSE) optimization pass.
+ Fix code generation bug in regmove.c in which it could
incorrectly change a "const" value.
+ Fix bug in optimization of conditionals involving volatile
memory references.
+ Avoid over-allocation of stack space for some procedures.
+ Fixed bug in the compiler which caused incorrect optimization
of an obscure series of bit manipulations, shifts and
arithmetic.
+ Fixed register allocator bug which caused teTeX to be
mis-compiled on SPARC targets.
+ Avoid incorrect optimization of degenerate case statements
for certain targets such as the ARM.
+ Fix out of range memory reference in the jump optimizer.
+ Avoid dereferencing null pointer in fix-header.
+ Fix test for GCC specific features so that it is possible to
bootstrap with gcc-2.6.2 and older versions of GCC.
+ Fix typo in scheduler which could potentially cause out of
range memory accesses.
+ Avoid incorrect loop reversal which caused incorrect code for
certain loops on PowerPC targets.
+ Avoid incorrect optimization of switch statements on certain
targets (for example the ARM).
* Platform specific bugfixes and improvements
+ Work around bug in Sun V5.0 compilers which caused bootstrap
comparison failures on SPARC targets.
+ Fix SPARC backend bug which caused aborts in final.c.
+ Fix sparc-hal-solaris2* configuration fragments.
+ Fix bug in sparc block profiling.
+ Fix obscure code generation bug for the PARISC targets.
+ Define __STDC_EXT__ for HPUX configurations.
+ Various POWERPC64 code generation bugfixes.
+ Fix abort for PPC targets using ELF (ex GNU/Linux).
+ Fix collect2 problems for AIX targets.
+ Correct handling of .file directive for PPC targets.
+ Fix bug in fix_trunc x86 patterns.
+ Fix x86 port to correctly pop the FP stack for functions that
return structures in memory.
+ Fix minor bug in strlen x86 pattern.
+ Use stabs debugging instead of dwarf1 for x86-solaris
targets.
+ Fix template repository code to handle leading underscore in
mangled names.
+ Fix weak/weak alias support for OpenBSD.
+ GNU/Linux for the ARM has C++ compatible include files.
* Language & Runtime specific fixes.
+ Fix handling of constructor attribute in the C front-end
which caused problems building the Chill runtime library on
some targets.
+ Fix minor problem merging type qualifiers in the C front-end.
+ Fix aliasing bug for pointers and references (C/C++).
+ Fix incorrect "non-constant initializer bug" when
-traditional or -fwritable-strings is enabled.
+ Fix build error for Chill front-end on SunOS.
+ Do not complain about duplicate instantiations when using
-frepo (C++).
+ Fix array bounds handling in C++ front-end which caused
problems with dwarf debugging information in some
circumstances.
+ Fix minor namespace problem.
+ Fix problem linking java programs.
Additional Changes in GCC 2.95.3
* Generic bugfixes and improvements
+ Fix numerous problems that caused incorrect optimization in
the register reloading code.
+ Fix numerous problems that caused incorrect optimization in
the loop optimizer.
+ Fix aborts in the functions build_insn_chain and scan_loops
under some circumstances.
+ Fix an alias analysis bug.
+ Fix an infinite compilation bug in the combiner.
+ A few problems with complex number support have been fixed.
+ It is no longer possible for gcc to act as a fork bomb when
installed incorrectly.
+ The -fpack-struct option should be recognized now.
+ Fixed a bug that caused incorrect code to be generated due to
a lost stack adjustment.
* Platform specific bugfixes and improvements
+ Support building ARM toolchains hosted on Windows.
+ Fix attribute calculations in ARM toolchains.
+ arm-linux support has been improved.
+ Fix a PIC failure on sparc targets.
+ On ix86 targets, the regparm attribute should now work
reliably.
+ Several updates for the h8300 port.
+ Fix problem building libio with glibc 2.2.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [17]gnu@gnu.org. There
are also [18]other ways to contact the FSF.
These pages are maintained by [19]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [20]GCC manuals. If that fails, the
[21]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [22]gcc@gnu.org or
[23]gcc@gcc.gnu.org. All of our lists have [24]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [25]Valid XHTML 1.0
References
1. http://gcc.gnu.org/news/spill.html
2. http://gcc.gnu.org/news/lcm.html
3. http://gcc.gnu.org/news/cprop.html
4. http://gcc.gnu.org/news/cfg.html
5. http://gcc.gnu.org/news/dse.html
6. http://gcc.gnu.org/news/hoist.html
7. http://gcc.gnu.org/news/alias.html
8. http://gcc.gnu.org/gcc-2.95/c++features.html
9. http://gcc.gnu.org/onlinedocs/g77/News.html
10. http://gcc.gnu.org/java/gcj-announce.txt
11. http://gcc.gnu.org/news/javaannounce.html
12. http://gcc.gnu.org/c99status.html
13. http://gcc.gnu.org/news/chill.html
14. http://gcc.gnu.org/news/sparc.html
15. http://gcc.gnu.org/news/egcs-vcg.html
16. http://gcc.gnu.org/egcs-1.0/features-2.8.html
17. mailto:gnu@gnu.org
18. http://www.gnu.org/home.html#ContactInfo
19. http://gcc.gnu.org/about.html
20. http://gcc.gnu.org/onlinedocs/
21. mailto:gcc-help@gcc.gnu.org
22. mailto:gcc@gnu.org
23. mailto:gcc@gcc.gnu.org
24. http://gcc.gnu.org/lists.html
25. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/gcc-2.95/caveats.html
GCC 2.95 Caveats
* GCC 2.95 will issue an error for invalid asm statements that had
been silently accepted by earlier versions of the compiler. This
is particularly noticeable when compiling older versions of the
Linux kernel (2.0.xx). Please refer to the FAQ (as shipped with
GCC 2.95) for more information on this issue.
* GCC 2.95 implements type based alias analysis to disambiguate
memory references. Some programs, particularly the Linux kernel
violate ANSI/ISO aliasing rules and therefore may not operate
correctly when compiled with GCC 2.95. Please refer to the FAQ (as
shipped with GCC 2.95) for more information on this issue.
* GCC 2.95 has a known bug in its handling of complex variables for
64bit targets. Instead of silently generating incorrect code, GCC
2.95 will issue a fatal error for situations it can not handle.
This primarily affects the Fortran community as Fortran makes more
use of complex variables than C or C++.
* GCC 2.95 has an integrated libstdc++, but does not have an
integrated libg++. Furthermore old libg++ releases will not work
with GCC 2.95. You can retrieve a recent copy of libg++ from the
[1]GCC ftp server.
Note most C++ programs only need libstdc++.
* Exception handling may not work with shared libraries,
particularly on alphas, hppas, rs6000/powerpc and mips based
platforms. Exception handling is known to work on x86 GNU/Linux
platforms with shared libraries.
* In general, GCC 2.95 is more rigorous about rejecting invalid C++
code or deprecated C++ constructs than G++ 2.7, G++ 2.8, EGCS 1.0,
or EGCS 1.1. As a result it may be necessary to fix C++ code
before it will compile with GCC 2.95.
* G++ is also converting toward the ISO C++ standard; as a result
code which was previously valid (and thus accepted by other
compilers and older versions of g++) may no longer be accepted.
The flag -fpermissive may allow some non-conforming code to
compile with GCC 2.95.
* GCC 2.95 compiled C++ code is not binary compatible with EGCS
1.1.x, EGCS 1.0.x or GCC 2.8.x.
* GCC 2.95 does not have changes from the GCC 2.8 tree that were
made between Sept 30, 1998 and April 30, 1999 (the official end of
the GCC 2.8 project). Future GCC releases will include all the
changes from the defunct GCC 2.8 sources.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [2]gnu@gnu.org. There
are also [3]other ways to contact the FSF.
These pages are maintained by [4]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [5]GCC manuals. If that fails, the
[6]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [7]gcc@gnu.org or
[8]gcc@gcc.gnu.org. All of our lists have [9]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [10]Valid XHTML 1.0
References
1. ftp://gcc.gnu.org/pub/gcc/infrastructure/libg++-2.8.1.3.tar.gz
2. mailto:gnu@gnu.org
3. http://www.gnu.org/home.html#ContactInfo
4. http://gcc.gnu.org/about.html
5. http://gcc.gnu.org/onlinedocs/
6. mailto:gcc-help@gcc.gnu.org
7. mailto:gcc@gnu.org
8. mailto:gcc@gcc.gnu.org
9. http://gcc.gnu.org/lists.html
10. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.1/index.html
EGCS 1.1
September 3, 1998: We are pleased to announce the release of EGCS 1.1.
December 1, 1998: We are pleased to announce the release of EGCS
1.1.1.
March 15, 1999: We are pleased to announce the release of EGCS 1.1.2.
EGCS is a free software project to further the development of the GNU
compilers using an open development environment.
EGCS 1.1 is a major new release of the EGCS compiler system. It has
been [1]extensively tested and is believed to be stable and suitable
for widespread use.
EGCS 1.1 is based on an June 6, 1998 snapshot of the GCC 2.8
development sources; it contains all of the new features found in GCC
2.8.1 as well as all new development from GCC up to June 6, 1998.
EGCS 1.1 also contains many improvements and features not found in GCC
or in older versions of EGCS:
* Global common subexpression elimination and global constant/copy
propagation (aka [2]gcse)
* Ongoing improvements to the [3]alias analysis support to allow for
better optimizations throughout the compiler.
* Vastly improved [4]C++ compiler and integrated C++ runtime
libraries.
* Fixes for the /tmp symlink race security problems.
* New targets including mips16, arm-thumb and 64 bit PowerPC.
* Improvements to GNU Fortran (g77) compiler and runtime library
made since g77 version 0.5.23.
See the [5]new features page for a more complete list of new features
found in EGCS 1.1 releases.
EGCS 1.1.1 is a minor update to fix several serious problems in EGCS
1.1:
* General improvements and fixes
+ Avoid some stack overflows when compiling large functions.
+ Avoid incorrect loop invariant code motions.
+ Fix some core dumps on Linux kernel code.
+ Bring back the imake -Di386 and friends fix from EGCS 1.0.2.
+ Fix code generation problem in gcse.
+ Various documentation related fixes.
* g++/libstdc++ improvements and fixes
+ MT safe EH fix for setjmp/longjmp based exception handling.
+ Fix a few bad interactions between optimization and exception
handling.
+ Fixes for demangling of template names starting with "__".
+ Fix a bug that would fail to run destructors in some cases
with -O2.
+ Fix 'new' of classes with virtual bases.
+ Fix crash building Qt on the Alpha.
+ Fix failure compiling WIFEXITED macro on GNU/Linux.
+ Fix some -frepo failures.
* g77 and libf2c improvements and fixes
+ Various documentation fixes.
+ Avoid compiler crash on RAND intrinsic.
+ Fix minor bugs in makefiles exposed by BSD make programs.
+ Define _XOPEN_SOURCE for libI77 build to avoid potential
problems on some 64-bit systems.
+ Fix problem with implicit endfile on rewind.
+ Fix spurious recursive I/O errors.
* platform specific improvements and fixes
+ Match all versions of UnixWare7.
+ Do not assume x86 SVR4 or UnixWare targets can handle stabs.
+ Fix PPC/RS6000 LEGITIMIZE_ADDRESS macro and bug in conversion
from unsigned ints to double precision floats.
+ Fix ARM ABI issue with NetBSD.
+ Fix a few arm code generation bugs.
+ Fixincludes will fix additional broken SCO OpenServer header
files.
+ Fix a m68k backend bug which caused invalid offsets in reg+d
addresses.
+ Fix problems with 64bit AIX 4.3 support.
+ Fix handling of long longs for varargs/stdarg functions on
the ppc.
+ Minor fixes to CPP predefines for Windows.
+ Fix code generation problems with gpr<->fpr copies for 64bit
ppc.
+ Fix a few coldfire code generation bugs.
+ Fix some more header file problems on SunOS 4.x.
+ Fix assert.h handling for RTEMS.
+ Fix Windows handling of TREE_SYMBOL_REFERENCED.
+ Fix x86 compiler abort in reg-stack pass.
+ Fix cygwin/windows problem with section attributes.
+ Fix Alpha code generation problem exposed by SMP Linux
kernels.
+ Fix typo in m68k 32->64bit integer conversion.
+ Make sure target libraries build with -fPIC for PPC & Alpha
targets.
EGCS 1.1.2 is a minor update to fix several serious problems in EGCS
1.1.1:
* General improvements and fixes
+ Fix bug in loop optimizer which caused the SPARC (and
potentially other) ports to segfault.
+ Fix infinite recursion in alias analysis and combiner code.
+ Fix bug in regclass preferencing.
+ Fix incorrect loop reversal which caused incorrect code to be
generated for several targets.
+ Fix return value for builtin memcpy.
+ Reduce compile time for certain loops which exposed quadratic
behavior in the loop optimizer.
+ Fix bug which caused volatile memory to be written multiple
times when only one write was needed/desired.
+ Fix compiler abort in caller-save.c
+ Fix combiner bug which caused incorrect code generation for
certain division by constant operations.
+ Fix incorrect code generation due to a bug in range check
optimizations.
+ Fix incorrect code generation due to mis-handling of
clobbered values in CSE.
+ Fix compiler abort/segfault due to incorrect register
splitting when unrolling loops.
+ Fix code generation involving autoincremented addresses with
ternary operators.
+ Work around bug in the scheduler which caused qt to be
mis-compiled on some platforms.
+ Fix code generation problems with -fshort-enums.
+ Tighten security for temporary files.
+ Improve compile time for codes which make heavy use of
overloaded functions.
+ Fix multiply defined constructor/destructor symbol problems.
+ Avoid setting bogus RPATH environment variable during
bootstrap.
+ Avoid GNU-make dependencies in the texinfo subdir.
+ Install CPP wrapper script in $(prefix)/bin if --enable-cpp.
--enable-cpp=<dirname> can be used to specify an additional
install directory for the cpp wrapper script.
+ Fix CSE bug which caused incorrect label-label refs to appear
on some platforms.
+ Avoid linking in EH routines from libgcc if they are not
needed.
+ Avoid obscure bug in aliasing code.
+ Fix bug in weak symbol handling.
* Platform-specific improvements and fixes
+ Fix detection of PPro/PII on Unixware 7.
+ Fix compiler segfault when building spec99 and other programs
for SPARC targets.
+ Fix code-generation bugs for integer and floating point
conditional move instructions on the PPro/PII.
+ Use fixincludes to fix byteorder problems on i?86-*-sysv.
+ Fix build failure for the arc port.
+ Fix floating point format configuration for i?86-gnu port.
+ Fix problems with hppa1.0-hp-hpux10.20 configuration when
threads are enabled.
+ Fix coldfire code generation bugs.
+ Fix "unrecognized insn" problems for Alpha and PPC ports.
+ Fix h8/300 code generation problem with floating point values
in memory.
+ Fix unrecognized insn problems for the m68k port.
+ Fix namespace-pollution problem for the x86 port.
+ Fix problems with old assembler on x86 NeXT systems.
+ Fix PIC code-generation problems for the SPARC port.
+ Fix minor bug with LONG_CALLS in PowerPC SVR4 support.
+ Fix minor ISO namespace violation in Alpha varargs/stdarg
support.
+ Fix incorrect "braf" instruction usage for the SH port.
+ Fix minor bug in va-sh which prevented its use with -ansi.
+ Fix problems recognizing and supporting FreeBSD.
+ Handle OpenBSD systems correctly.
+ Minor fixincludes fix for Digital UNIX 4.0B.
+ Fix problems with ctors/dtors in SCO shared libraries.
+ Abort instead of generating incorrect code for PPro/PII
floating point conditional moves.
+ Avoid multiply defined symbols on Linux/GNU systems using
libc-5.4.xx.
+ Fix abort in alpha compiler.
* Fortran-specific fixes
+ Fix the IDate intrinsic (VXT) (in libg2c) so the returned
year is in the documented, non-Y2K-compliant range of 0-99,
instead of being returned as 100 in the year 2000.
+ Fix the `Date_and_Time' intrinsic (in libg2c) to return the
milliseconds value properly in Values(8).
+ Fix the `LStat' intrinsic (in libg2c) to return device-ID
information properly in SArray(7).
Each release includes installation instructions in both HTML and
plaintext forms (see the INSTALL directory in the toplevel directory
of the distribution). However, we also keep the most up to date
[6]installation instructions and [7]build/test status on our web page.
We will update those pages as new information becomes available.
The EGCS project would like to thank the numerous people that have
contributed new features, test results, bugfixes, etc. This [8]amazing
group of volunteers is what makes EGCS successful.
And finally, we can't in good conscience fail to mention some
[9]caveats to using EGCS 1.1.
Download EGCS from egcs.cygnus.com (USA California).
The EGCS 1.1 release is also available on many mirror sites.
[10]Goto mirror list to find a closer site.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [11]gnu@gnu.org. There
are also [12]other ways to contact the FSF.
These pages are maintained by [13]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [14]GCC manuals. If that fails, the
[15]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [16]gcc@gnu.org or
[17]gcc@gcc.gnu.org. All of our lists have [18]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [19]Valid XHTML 1.0
References
1. http://gcc.gnu.org/egcs-1.1/egcs-1.1-test.html
2. http://gcc.gnu.org/news/gcse.html
3. http://gcc.gnu.org/news/alias.html
4. http://gcc.gnu.org/egcs-1.1/c++features.html
5. http://gcc.gnu.org/egcs-1.1/features.html
6. http://gcc.gnu.org/install/
7. http://gcc.gnu.org/egcs-1.1/buildstat.html
8. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
9. http://gcc.gnu.org/egcs-1.1/caveats.html
10. http://gcc.gnu.org/mirrors.html
11. mailto:gnu@gnu.org
12. http://www.gnu.org/home.html#ContactInfo
13. http://gcc.gnu.org/about.html
14. http://gcc.gnu.org/onlinedocs/
15. mailto:gcc-help@gcc.gnu.org
16. mailto:gcc@gnu.org
17. mailto:gcc@gcc.gnu.org
18. http://gcc.gnu.org/lists.html
19. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.1/features.html
EGCS 1.1 new features
* Integrated GNU Fortran (g77) compiler and runtime library with
improvements, based on [1]g77 version 0.5.23.
* Vast improvements in the C++ compiler; so many they have [2]page
of their own!
* Compiler implements [3]global common subexpression elimination and
global copy/constant propagation.
* More major improvements in the [4]alias analysis code.
* More major improvements in the exception handling code to improve
performance, lower static overhead and provide the infrastructure
for future improvements.
* The infamous /tmp symlink race security problems have been fixed.
* The regmove optimization pass has been nearly completely rewritten
to improve performance of generated code.
* The compiler now recomputes register usage information before
local register allocation. By providing more accurate information
to the priority based allocator, we get better register
allocation.
* The register reloading phase of the compiler optimizes spill code
much better than in previous releases.
* Some bad interactions between the register allocator and
instruction scheduler have been fixed, resulting in much better
code for certain programs. Additionally, we have tuned the
scheduler in various ways to improve performance of generated code
for some architectures.
* The compiler's branch shortening algorithms have been
significantly improved to work better on targets which align jump
targets.
* The compiler now supports -Os to prefer optimizing for code space
over optimizing for code speed.
* The compiler will now totally eliminate library calls which
compute constant values. This primarily helps targets with no
integer div/mul support and targets without floating point
support.
* The compiler now supports an extensive "--help" option.
* cpplib has been greatly improved and may be suitable for limited
use.
* Memory footprint for the compiler has been significantly reduced
for some pathological cases.
* The time to build EGCS has been improved for certain targets
(particularly the alpha and mips platforms).
* Many infrastructure improvements throughout the compiler, plus the
usual mountain of bugfixes and minor improvements.
* Target dependent improvements:
+ SPARC port now includes V8 plus and V9 support as well as
performance tuning for Ultra class machines. The SPARC port
now uses the Haifa scheduler.
+ Alpha port has been tuned for the EV6 processor and has an
optimized expansion of memcpy/bzero. The Alpha port now uses
the Haifa scheduler.
+ RS6000/PowerPC: support for the Power64 architecture and AIX
4.3. The RS6000/PowerPC port now uses the Haifa scheduler.
+ x86: Alignment of static store data and jump targets is per
Intel recommendations now. Various improvements throughout
the x86 port to improve performance on Pentium processors
(including improved epilogue sequences for Pentium chips and
backend improvements which should help register allocation on
all x86 variants. Conditional move support has been fixed and
enabled for PPro processors. The x86 port also better
supports 64bit operations now. Unixware 7, a System V Release
5 target, is now supported and SCO OpenServer targets can
support GAS.
+ MIPS has improved multiply/multiply-add support and now
includes mips16 ISA support.
+ M68k has many micro-optimizations and Coldfire fixes.
* Core compiler is based on the GCC development tree from June 9,
1998, so we have all of the [5]features found in GCC 2.8.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
are also [7]other ways to contact the FSF.
These pages are maintained by [8]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [9]GCC manuals. If that fails, the
[10]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [11]gcc@gnu.org or
[12]gcc@gcc.gnu.org. All of our lists have [13]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [14]Valid XHTML 1.0
References
1. http://gcc.gnu.org/onlinedocs/g77/News.html
2. http://gcc.gnu.org/egcs-1.1/c++features.html
3. http://gcc.gnu.org/news/gcse.html
4. http://gcc.gnu.org/news/alias.html
5. http://gcc.gnu.org/egcs-1.0/features-2.8.html
6. mailto:gnu@gnu.org
7. http://www.gnu.org/home.html#ContactInfo
8. http://gcc.gnu.org/about.html
9. http://gcc.gnu.org/onlinedocs/
10. mailto:gcc-help@gcc.gnu.org
11. mailto:gcc@gnu.org
12. mailto:gcc@gcc.gnu.org
13. http://gcc.gnu.org/lists.html
14. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.1/caveats.html
EGCS 1.1 Caveats
* EGCS has an integrated libstdc++, but does not have an integrated
libg++. Furthermore old libg++ releases will not work with EGCS;
HJ Lu has made a libg++-2.8.1.2 snapshot available which may work
with EGCS.
Note most C++ programs only need libstdc++.
* Exception handling may not work with shared libraries,
particularly on alphas, hppas, rs6000/powerpc and mips based
platforms. Exception handling is known to work on x86-linux
platforms with shared libraries.
* Some versions of the Linux kernel have bugs which prevent them
from being compiled or from running when compiled by EGCS. See the
FAQ (as shipped with EGCS 1.1) for additional information.
* In general, EGCS is more rigorous about rejecting invalid C++ code
or deprecated C++ constructs than g++-2.7, g++-2.8 or EGCS 1.0. As
a result it may be necessary to fix C++ code before it will
compile with EGCS.
* G++ is also converting toward the ISO C++ standard; as a result
code which was previously valid (and thus accepted by other
compilers and older versions of g++) may no longer be accepted.
* EGCS 1.1 compiled C++ code is not binary compatible with EGCS
1.0.x or GCC 2.8.x due to changes necessary to support thread safe
exception handling.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [1]gnu@gnu.org. There
are also [2]other ways to contact the FSF.
These pages are maintained by [3]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [4]GCC manuals. If that fails, the
[5]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [6]gcc@gnu.org or
[7]gcc@gcc.gnu.org. All of our lists have [8]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [9]Valid XHTML 1.0
References
1. mailto:gnu@gnu.org
2. http://www.gnu.org/home.html#ContactInfo
3. http://gcc.gnu.org/about.html
4. http://gcc.gnu.org/onlinedocs/
5. mailto:gcc-help@gcc.gnu.org
6. mailto:gcc@gnu.org
7. mailto:gcc@gcc.gnu.org
8. http://gcc.gnu.org/lists.html
9. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.3.html
EGCS 1.0.3
May 15, 1998
We are pleased to announce the release of EGCS 1.0.3.
EGCS is a collaborative effort involving several groups of hackers
using an open development model to accelerate development and testing
of GNU compilers and runtime libraries.
EGCS 1.0.3 is a minor update to the EGCS 1.0.2 compiler to fix a few
problems reported by Red Hat for builds of Red Hat 5.1.
* Generic bugfixes:
+ Fix a typo in the libio library which resulted in incorrect
behavior of istream::get.
+ Fix the Fortran negative array index problem.
+ Fix a major problem with the ObjC runtime thread support
exposed by glibc2.
+ Reduce memory consumption of the Haifa scheduler.
* Target specific bugfixes:
+ Fix one x86 floating point code generation bug exposed by
glibc2 builds.
+ Fix one x86 internal compiler error exposed by glibc2 builds.
+ Fix profiling bugs on the Alpha.
+ Fix ImageMagick & emacs 20.2 build problems on the Alpha.
+ Fix rs6000/ppc bug when converting values from integer types
to floating point types.
An important goal of EGCS is to allow wide scale testing of new
features and optimizations which are still under development. However,
EGCS has been carefully tested and should be comparable in quality to
most GCC releases.
EGCS 1.0.3 is based on an August 2, 1997 snapshot of the GCC 2.8
development sources; it contains nearly all of the new features found
in GCC 2.8.
EGCS also contains many improvements and features not found in GCC 2.7
or GCC 2.8.
* Integrated C++ runtime libraries, including support for most major
GNU/Linux systems!
* The integrated libstdc++ library includes a verbatim copy of SGI's
STL release instead of a modified copy.
* Integrated GNU Fortran compiler.
* New instruction scheduler.
* New alias analysis code.
See the [1]new features page for a more complete list of new features
found in EGCS 1.0.x releases.
The EGCS 1.0.3 release includes installation instructions in both HTML
and plaintext forms (see the INSTALL directory in the toplevel
directory of the EGCS 1.0.3 distribution). However, we also keep the
most up to date [2]installation instructions and [3]build/test status
on our web page. We will update those pages as new information becomes
available.
And, we can't in good conscience fail to mention some [4]caveats to
using EGCS.
Update: Big thanks to Stanford for providing a high speed link for
downloading EGCS (go.cygnus.com)!
Download EGCS from ftp.cygnus.com (USA California) or go.cygnus.com
(USA California -- High speed link provided by Stanford).
The EGCS 1.0.3 release is also available on many mirror sites.
[5]Goto mirror list to find a closer site
We'd like to thank the numerous people that have contributed new
features, test results, bugfixes, etc. Unfortunately, they're far too
numerous to mention by name.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
are also [7]other ways to contact the FSF.
These pages are maintained by [8]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [9]GCC manuals. If that fails, the
[10]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [11]gcc@gnu.org or
[12]gcc@gcc.gnu.org. All of our lists have [13]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [14]Valid XHTML 1.0
References
1. http://gcc.gnu.org/egcs-1.0/features.html
2. http://gcc.gnu.org/install/
3. http://gcc.gnu.org/egcs-1.0/buildstat.html
4. http://gcc.gnu.org/egcs-1.0/caveats.html
5. http://gcc.gnu.org/mirrors.html
6. mailto:gnu@gnu.org
7. http://www.gnu.org/home.html#ContactInfo
8. http://gcc.gnu.org/about.html
9. http://gcc.gnu.org/onlinedocs/
10. mailto:gcc-help@gcc.gnu.org
11. mailto:gcc@gnu.org
12. mailto:gcc@gcc.gnu.org
13. http://gcc.gnu.org/lists.html
14. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.2.html
EGCS 1.0.2
March 16, 1998
We are pleased to announce the release of EGCS 1.0.2.
EGCS is a collaborative effort involving several groups of hackers
using an open development model to accelerate development and testing
of GNU compilers and runtime libraries.
EGCS 1.0.2 is a minor update to the EGCS 1.0.1 compiler to fix several
serious problems in EGCS 1.0.1.
* General improvements and fixes
+ Memory consumption significantly reduced, especially for
templates and inline functions.
+ Fix various problems with glibc2.1.
+ Fix loop optimization bug exposed by rs6000/ppc port.
+ Fix to avoid potential code generation problems in jump.c.
+ Fix some undefined symbol problems in dwarf1 debug support.
* g++/libstdc++ improvements and fixes
+ libstdc++ in the EGCS release has been updated and should be
link compatible with libstdc++-2.8.
+ Various fixes in libio/libstdc++ to work better on Linux
systems.
+ Fix problems with duplicate symbols on systems that do not
support weak symbols.
+ Memory corruption bug and undefined symbols in bastring have
been fixed.
+ Various exception handling fixes.
+ Fix compiler abort for very long thunk names.
* g77 improvements and fixes
+ Fix compiler crash for omitted bound in Fortran CASE
statement.
+ Add missing entries to g77 lang-options.
+ Fix problem with -fpedantic in the g77 compiler.
+ Fix "backspace" problem with g77 on alphas.
+ Fix x86 backend problem with Fortran literals and -fpic.
+ Fix some of the problems with negative subscripts for g77 on
alphas.
+ Fixes for Fortran builds on cygwin32/mingw32.
* platform specific improvements and fixes
+ Fix long double problems on x86 (exposed by glibc).
+ x86 ports define i386 again to keep imake happy.
+ Fix exception handling support on NetBSD ports.
+ Several changes to collect2 to fix many problems with AIX.
+ Define __ELF__ for rs6000/linux.
+ Fix -mcall-linux problem on rs6000/linux.
+ Fix stdarg/vararg problem for rs6000/linux.
+ Allow autoconf to select a proper install problem on AIX 3.1.
+ m68k port support includes -mcpu32 option as well as cpu32
multilibs.
+ Fix stdarg bug for irix6.
+ Allow EGCS to build on irix5 without the gnu assembler.
+ Fix problem with static linking on sco5.
+ Fix bootstrap on sco5 with native compiler.
+ Fix for abort building newlib on H8 target.
+ Fix fixincludes handling of math.h on SunOS.
+ Minor fix for Motorola 3300 m68k systems.
An important goal of EGCS is to allow wide scale testing of new
features and optimizations which are still under development. However,
EGCS has been carefully tested and should be comparable in quality to
most GCC releases.
EGCS 1.0.2 is based on an August 2, 1997 snapshot of the GCC 2.8
development sources; it contains nearly all of the new features found
in GCC 2.8.
EGCS also contains many improvements and features not found in GCC 2.7
or GCC 2.8.
* Integrated C++ runtime libraries, including support for most major
linux systems!
* The integrated libstdc++ library includes a verbatim copy of SGI's
STL release.
* Integrated GNU Fortran compiler.
* New instruction scheduler.
* New alias analysis code.
See the [1]new features page for a more complete list of new features
found in EGCS 1.0.x releases.
The EGCS 1.0.2 release includes installation instructions in both HTML
and plaintext forms (see the INSTALL directory in the toplevel
directory of the EGCS 1.0.2 distribution). However, we also keep the
most up to date [2]installation instructions and [3]build/test status
on our web page. We will update those pages as new information becomes
available.
And, we can't in good conscience fail to mention some [4]caveats to
using EGCS.
Update: Big thanks to Stanford for providing a high speed link for
downloading EGCS (go.cygnus.com)!
Download EGCS from ftp.cygnus.com (USA California) or go.cygnus.com
(USA California -- High speed link provided by Stanford).
The EGCS 1.0.2 release is also available on many mirror sites.
[5]Goto mirror list to find a closer site
We'd like to thank the numerous people that have contributed new
features, test results, bugfixes, etc. Unfortunately, they're far too
numerous to mention by name.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
are also [7]other ways to contact the FSF.
These pages are maintained by [8]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [9]GCC manuals. If that fails, the
[10]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [11]gcc@gnu.org or
[12]gcc@gcc.gnu.org. All of our lists have [13]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [14]Valid XHTML 1.0
References
1. http://gcc.gnu.org/egcs-1.0/features.html
2. http://gcc.gnu.org/install/index.html
3. http://gcc.gnu.org/egcs-1.0/buildstat.html
4. http://gcc.gnu.org/egcs-1.0/caveats.html
5. http://gcc.gnu.org/mirrors.html
6. mailto:gnu@gnu.org
7. http://www.gnu.org/home.html#ContactInfo
8. http://gcc.gnu.org/about.html
9. http://gcc.gnu.org/onlinedocs/
10. mailto:gcc-help@gcc.gnu.org
11. mailto:gcc@gnu.org
12. mailto:gcc@gcc.gnu.org
13. http://gcc.gnu.org/lists.html
14. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.1.html
EGCS 1.0.1
January 6, 1998
We are pleased to announce the release of EGCS 1.0.1.
EGCS is a collaborative effort involving several groups of hackers
using an open development model to accelerate development and testing
of GNU compilers and runtime libraries.
EGCS 1.0.1 is a minor update to the EGCS 1.0 compiler to fix a few
critical bugs and add support for Red Hat 5.0 Linux. Changes since the
EGCS 1.0 release:
* Add support for Red Hat 5.0 Linux and better support for Linux
systems using glibc2.
Many programs failed to link when compiled with EGCS 1.0 on Red
Hat 5.0 or on systems with newer versions of glibc2. EGCS 1.0.1
should fix these problems.
* Compatibility with both EGCS 1.0 and GCC 2.8 libgcc exception
handling interfaces.
To avoid future compatibility problems, we strongly urge anyone
who is planning on distributing shared libraries that contain C++
code to upgrade to EGCS 1.0.1 first.
Soon after EGCS 1.0 was released, the GCC developers made some
incompatible changes in libgcc's exception handling interfaces.
These changes were needed to solve problems on some platforms.
This means that GCC 2.8.0, when released, will not be seamlessly
compatible with shared libraries built by EGCS 1.0. The reason is
that the libgcc.a in GCC 2.8.0 will not contain a function needed
by the old interface.
The result of this is that there may be compatibility problems
with shared libraries built by EGCS 1.0 when used with GCC 2.8.0.
With EGCS 1.0.1, generated code uses the new (GCC 2.8.0)
interface, and libgcc.a has the support routines for both the old
and the new interfaces (so EGCS 1.0.1 and EGCS 1.0 code can be
freely mixed, and EGCS 1.0.1 and GCC 2.8.0 code can be freely
mixed).
The maintainers of GCC 2.x have decided against including seamless
support for the old interface in 2.8.0, since it was never
"official", so to avoid future compatibility problems we recommend
against distributing any shared libraries built by EGCS 1.0 that
contain C++ code (upgrade to 1.0.1 and use that).
* Various bugfixes in the x86, hppa, mips, and rs6000/ppc backends.
The x86 changes fix code generation errors exposed when building
glibc2 and the Linux dynamic linker (ld.so).
The hppa change fixes a compiler abort when configured for use
with RTEMS.
The MIPS changes fix problems with the definition of LONG_MAX on
newer systems, allow for command line selection of the target ABI,
and fix one code generation problem.
The rs6000/ppc change fixes some problems with passing structures
to varargs/stdarg functions.
* A few machine independent bugfixes, mostly to fix code generation
errors when building Linux kernels or glibc.
* Fix a few critical exception handling and template bugs in the C++
compiler.
* Fix Fortran namelist bug on alphas.
* Fix build problems on x86-solaris systems.
An important goal of EGCS is to allow wide scale testing of new
features and optimizations which are still under development. However,
EGCS has been carefully tested and should be comparable in quality to
most GCC releases.
EGCS 1.0.1 is based on an August 2, 1997 snapshot of the GCC 2.8
development sources; it contains nearly all of the new features found
in GCC 2.8.
EGCS also contains many improvements and features not found in GCC 2.7
and even the soon to be released GCC 2.8 compilers.
* Integrated C++ runtime libraries, including support for most major
linux systems!
* The integrated libstdc++ library includes a verbatim copy of SGI's
STL release.
* Integrated GNU Fortran compiler
* New instruction scheduler
* New alias analysis code
See the [1]new features page for a more complete list of new features
found in EGCS 1.0.x releases.
The EGCS 1.0.1 release includes installation instructions in both HTML
and plaintext forms (see the INSTALL directory in the toplevel
directory of the EGCS 1.0.1 distribution). However, we also keep the
most up to date [2]installation instructions and [3]build/test status
on our web page. We will update those pages as new information becomes
available.
And, we can't in good conscience fail to mention some [4]caveats to
using EGCS.
Update: Big thanks to Stanford for providing a high speed link for
downloading EGCS (go.cygnus.com)!
Download EGCS from ftp.cygnus.com (USA California) or go.cygnus.com
(USA California -- High speed link provided by Stanford).
The EGCS 1.0.1 release is also available on many mirror sites.
[5]Goto mirror list to find a closer site
We'd like to thank the numerous people that have contributed new
features, test results, bugfixes, etc. Unfortunately, they're far too
numerous to mention by name.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
are also [7]other ways to contact the FSF.
These pages are maintained by [8]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [9]GCC manuals. If that fails, the
[10]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [11]gcc@gnu.org or
[12]gcc@gcc.gnu.org. All of our lists have [13]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [14]Valid XHTML 1.0
References
1. http://gcc.gnu.org/egcs-1.0/features.html
2. http://gcc.gnu.org/install/index.html
3. http://gcc.gnu.org/egcs-1.0/buildstat.html
4. http://gcc.gnu.org/egcs-1.0/caveats.html
5. http://gcc.gnu.org/mirrors.html
6. mailto:gnu@gnu.org
7. http://www.gnu.org/home.html#ContactInfo
8. http://gcc.gnu.org/about.html
9. http://gcc.gnu.org/onlinedocs/
10. mailto:gcc-help@gcc.gnu.org
11. mailto:gcc@gnu.org
12. mailto:gcc@gcc.gnu.org
13. http://gcc.gnu.org/lists.html
14. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.html
EGCS 1.0
December 3, 1997
We are pleased to announce the release of EGCS 1.0.
EGCS is a collaborative effort involving several groups of hackers
using an open development model to accelerate development and testing
of GNU compilers and runtime libraries.
An important goal of EGCS is to allow wide scale testing of
experimental features and optimizations; therefore, EGCS contains some
features and optimizations which are still under development. However,
EGCS has been carefully tested and should be comparable in quality to
most GCC releases.
EGCS 1.0 is based on an August 2, 1997 snapshot of the GCC 2.8
development sources; it contains nearly all of the new features found
in GCC 2.8.
EGCS 1.0 also contains many improvements and features not found in GCC
2.7 and even the soon to be released GCC 2.8 compilers.
* Integrated C++ runtime libraries, including support for most major
linux systems!
* The integrated libstdc++ library includes a verbatim copy of SGI's
STL release.
* Integrated GNU Fortran compiler.
* New instruction scheduler.
* New alias analysis code.
See the [1]new features page for a more complete list of new features.
The EGCS 1.0 release includes installation instructions in both HTML
and plaintext forms (see the INSTALL directory in the toplevel
directory of the EGCS 1.0 distribution). However, we also keep the
most up to date [2]installation instructions and [3]build/test status
on our web page. We will update those pages as new information becomes
available.
And, we can't in good conscience fail to mention some [4]caveats to
using EGCS.
Update: The T1 into our main California offices has been 100%
saturated since shortly after the release. We've added an EGCS 1.0
mirror at our Massachusetts office to help share the load. We also
encourage folks to use the many mirrors available throughout the
world.
Update: Big thanks to Stanford for providing a high speed link for
downloading EGCS (go.cygnus.com)!
Download EGCS from ftp.cygnus.com (USA California) or go.cygnus.com
(USA California -- High speed link provided by Stanford).
The EGCS 1.0 release should be available on most mirror sites by now.
[5]Goto mirror list to find a closer site
We'd like to thank the numerous people that have contributed new
features, test results, bugfixes, etc. Unfortunately, they're far too
numerous to mention by name.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
are also [7]other ways to contact the FSF.
These pages are maintained by [8]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [9]GCC manuals. If that fails, the
[10]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [11]gcc@gnu.org or
[12]gcc@gcc.gnu.org. All of our lists have [13]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [14]Valid XHTML 1.0
References
1. http://gcc.gnu.org/egcs-1.0/features.html
2. http://gcc.gnu.org/install/index.html
3. http://gcc.gnu.org/egcs-1.0/buildstat.html
4. http://gcc.gnu.org/egcs-1.0/caveats.html
5. http://gcc.gnu.org/mirrors.html
6. mailto:gnu@gnu.org
7. http://www.gnu.org/home.html#ContactInfo
8. http://gcc.gnu.org/about.html
9. http://gcc.gnu.org/onlinedocs/
10. mailto:gcc-help@gcc.gnu.org
11. mailto:gcc@gnu.org
12. mailto:gcc@gcc.gnu.org
13. http://gcc.gnu.org/lists.html
14. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.0/features.html
EGCS 1.0 features
* Core compiler is based on the gcc2 development tree from Aug 2,
1997, so we have most of the [1]features found in GCC 2.8.
* Integrated GNU Fortran compiler based on g77-0.5.22-19970929.
* Vast improvements in the C++ compiler; so many they have [2]page
of their own!
* Integrated C++ runtime libraries, including support for most major
linux systems!
* New instruction scheduler from IBM Haifa which includes support
for function wide instruction scheduling as well as superscalar
scheduling.
* Significantly improved alias analysis code.
* Improved register allocation for two address machines.
* Significant code generation improvements for Fortran code on
Alphas.
* Various optimizations from the g77 project as well as improved
loop optimizations.
* Dwarf2 debug format support for some targets.
* egcs libstdc++ includes the SGI STL implementation without
changes.
* As a result of these and other changes, egcs libstc++ is not
binary compatible with previous releases of libstdc++.
* Various new ports -- UltraSPARC, Irix6.2 & Irix6.3 support, The
SCO Openserver 5 family (5.0.{0,2,4} and Internet FastStart 1.0
and 1.1), Support for RTEMS on several embedded targets, Support
for arm-linux, Mitsubishi M32R, Hitachi H8/S, Matsushita MN102 and
MN103, NEC V850, Sparclet, Solaris & Linux on PowerPCs, etc.
* Integrated testsuites for gcc, g++, g77, libstdc++ and libio.
* RS6000/PowerPC ports generate code which can run on all
RS6000/PowerPC variants by default.
* -mcpu= and -march= switches for the x86 port to allow better
control over how the x86 port generates code.
* Includes the template repository patch (aka repo patch); note the
new template code makes repo obsolete for ELF systems using gnu-ld
such as Linux.
* Plus the usual assortment of bugfixes and improvements.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [3]gnu@gnu.org. There
are also [4]other ways to contact the FSF.
These pages are maintained by [5]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [6]GCC manuals. If that fails, the
[7]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [8]gcc@gnu.org or
[9]gcc@gcc.gnu.org. All of our lists have [10]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [11]Valid XHTML 1.0
References
1. http://gcc.gnu.org/egcs-1.0/features-2.8.html
2. http://gcc.gnu.org/egcs-1.0/c++features.html
3. mailto:gnu@gnu.org
4. http://www.gnu.org/home.html#ContactInfo
5. http://gcc.gnu.org/about.html
6. http://gcc.gnu.org/onlinedocs/
7. mailto:gcc-help@gcc.gnu.org
8. mailto:gcc@gnu.org
9. mailto:gcc@gcc.gnu.org
10. http://gcc.gnu.org/lists.html
11. http://validator.w3.org/check/referer
======================================================================
http://gcc.gnu.org/egcs-1.0/caveats.html
EGCS 1.0 Caveats
* EGCS has an integrated libstdc++, but does not have an integrated
libg++. Furthermore old libg++ releases will not work with egc; HJ
Lu has made a libg++-2.8.1.2 available which may work with EGCS.
Note most C++ programs only need libstdc++.
* Note that using -pedantic or -Wreturn-type can cause an explosion
in the amount of memory needed for template-heavy C++ code, such
as code that uses STL. Also note that -Wall includes
-Wreturn-type, so if you use -Wall you will need to specify
-Wno-return-type to turn it off.
* Exception handling may not work with shared libraries,
particularly on alphas, hppas, and mips based platforms. Exception
handling is known to work on x86-linux platforms with shared
libraries.
* Some versions of the Linux kernel have bugs which prevent them
from being compiled or from running when compiled by EGCS. See the
FAQ (as shipped with EGCS 1.0) for additional information.
* In general, EGCS is more rigorous about rejecting invalid C++ code
or deprecated C++ constructs than G++ 2.7. As a result it may be
necessary to fix C++ code before it will compile with EGCS.
* G++ is also aggressively tracking the C++ standard; as a result
code which was previously valid (and thus accepted by other
compilers and older versions of G++) may no longer be accepted.
* EGCS 1.0 may not work with Red Hat Linux 5.0 on all targets. EGCS
1.0.x and later releases should work with Red Hat Linux 5.0.
_________________________________________________________________
Please send FSF & GNU inquiries & questions to [1]gnu@gnu.org. There
are also [2]other ways to contact the FSF.
These pages are maintained by [3]the GCC team.
For questions related to the use of GCC, please consult these web
pages and the [4]GCC manuals. If that fails, the
[5]gcc-help@gcc.gnu.org mailing list might help.
Please send comments on these web pages and the development of GCC
to our developer mailing list at [6]gcc@gnu.org or
[7]gcc@gcc.gnu.org. All of our lists have [8]public archives.
Copyright (C) Free Software Foundation, Inc., 59 Temple Place - Suite
330, Boston, MA 02111, USA.
Verbatim copying and distribution of this entire article is permitted
in any medium, provided this notice is preserved.
Last modified 2004-11-14 [9]Valid XHTML 1.0
References
1. mailto:gnu@gnu.org
2. http://www.gnu.org/home.html#ContactInfo
3. http://gcc.gnu.org/about.html
4. http://gcc.gnu.org/onlinedocs/
5. mailto:gcc-help@gcc.gnu.org
6. mailto:gcc@gnu.org
7. mailto:gcc@gcc.gnu.org
8. http://gcc.gnu.org/lists.html
9. http://validator.w3.org/check/referer
======================================================================
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