+ * stor-layout.c (layout_record): Ignore STRUCTURE_SIZE_BOUNDARY if
+ we are packing a structure. This allows a structure with only
+ bytes to be aligned on a byte boundary and have no padding on a
+ m68k.
PIC support for GCC/arm.
This fix is untested on platforms other than the ARM and is only enabled
if GCC_27_ARM32_PIC_SUPPORT is defined.
These fixes are only required for GCC 2.7 and will not be needed in 2.8+
memref_referenced_p(); otherwise there are cases where a later set that changes
the memory location may be moved too early, and thus the new value will be
(incorrectly) used where it should not be.
Added a new patch mechanism to gcc2netbsd so changes from the FSF source
are seen in gcc2netbsd. Sync some Makefiles to output of current gcc2netbsd.
(Cosmetic changes only to the Makefiles.)
for kernel printf functions
- understand the db_printf %n,%r,%z format specifiers
- understand the kernel printf %: format specifier
- Be more permissive to %b arguments: accept any integer type, not only
unsigned ints.
long comparisons. As of this date, this change hasn't made it into
the development sources. We must consider this when it comes time
to integrate a newer gcc release.
Thu Mar 7 01:16:23 1996 J"orn Rennecke (amylaar@meolyon.hanse.de)
* expmed.c (negate_rtx): Don't negate LONG_MIN if mode is wider
than HOST_WIDE_INT.
gcc now produces worse code for this test case than gcc 2.5.8 when
invoked with -O , but it will optimize as good as gcc 2.5.8 (i.e. all
comparisons vanish) when invoked with -O2 , thus I think it doesn't
matter. If anyone is interested in looking into this, the code in
expr.c, function expand_expr, case MINUS_EXPR, if-clause for if
(TREE_UNSIGNED (type) || TREE_OVERFLOW (negated)), will refuse to
convert the subtraction into an addition if there is an overflow in
the conversion or negation of the constant. If both host and target
machine are binary computers with 2-complement representation, the
overflow should not matter.
wrstuden