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345 Commits

Author SHA1 Message Date
Roberto Ierusalimschy
13256a4173 detail 
put explicit all cases for a switch of an enumeration
 2017-09-26 14:10:49 -03:00
Roberto Ierusalimschy
abb17cf19b new opcode OP_LOADF (load immediate float) 2017-09-19 15:38:14 -03:00
Roberto Ierusalimschy
80d9b09f35 jumps do not close upvalues (to be faster and simpler); 
explicit instruction to close upvalues; command 'break' not
handled like a 'goto' (to optimize removal of uneeded 'close'
instructions)
 2017-09-13 16:50:08 -03:00
Roberto Ierusalimschy
f96497397a new type 'StackValue' for stack elements 
(we may want to put extra info there in the future)
 2017-06-29 12:06:44 -03:00
Roberto Ierusalimschy
b42430fd3a 'lineinfo' in prototypes saved as differences instead of absolute 
values, so that the array can use bytes instead of ints, reducing
its size. (A new array 'abslineinfo' is used when line differences
do not fit in a byte.)
 2017-06-27 08:35:31 -03:00
Roberto Ierusalimschy
de74289049 table field names for dedicated opcodes can be restricted to 
small strings for slightly faster access
 2017-05-18 16:44:19 -03:00
Roberto Ierusalimschy
502a1d1108 new opcodes for table access with constant keys (strings and integers) 2017-04-28 17:57:45 -03:00
Roberto Ierusalimschy
173e41b2eb new opcode OP_ADDI (for immediate integer operand) (Experimental) 2017-04-26 14:46:52 -03:00
Roberto Ierusalimschy
a3f9c1a77a detail (using unsigned comparison in range check for LOADI) 2017-04-25 17:01:14 -03:00
Roberto Ierusalimschy
6dbae1b5d9 registers in a VINDEXED expression must be freed in order 2017-04-25 15:28:25 -03:00
Roberto Ierusalimschy
cb3d5dce30 opcodes 'OP_GETTABUP'/'OP_SETTABUP' operate only with string keys, 
so they can use fast-track table access
 2017-04-24 17:26:39 -03:00
Roberto Ierusalimschy
6a98aa0bb0 new opcode LOADI (for loading immediate integers) 2017-04-20 16:53:55 -03:00
Roberto Ierusalimschy
2a235312f0 detail (removing spaces at end of lines) 2016-12-22 11:08:50 -02:00
Roberto Ierusalimschy
fc6b32bcaa bug: Lua can generate wrong code in functions with too many constants 2016-07-19 14:12:07 -03:00
Roberto Ierusalimschy
6487fb11fc all 'static' variables should be 'const' 2016-06-20 16:12:46 -03:00
Roberto Ierusalimschy
fbd8614bdb comment (FALLTHROUGH) 2016-05-13 16:09:46 -03:00
Roberto Ierusalimschy
1f259be52a 'getcode' -> 'getinstruction' 2016-01-05 14:22:37 -02:00
Roberto Ierusalimschy
b12b635a90 more refactoring 2016-01-04 11:40:57 -02:00
Roberto Ierusalimschy
384d1b47b0 comments (*lots* of them) + asserts 2015-12-18 11:53:36 -02:00
Roberto Ierusalimschy
a01eba657e reordering of some functions + 'code_label' renamed to 'code_loadbool' 2015-12-17 13:02:44 -02:00
Roberto Ierusalimschy
b7446ea88d detail ('while' -> 'for') in 'luaK_patchclose' 2015-12-17 12:52:53 -02:00
Roberto Ierusalimschy
d103312661 details (typos in comments) 2015-11-19 17:16:22 -02:00
Roberto Ierusalimschy
82129b9266 use macro 'hasjumps' to test whether expression has jumps... 2015-10-26 12:27:47 -02:00
Roberto Ierusalimschy
a1935b9cba error message ("too complex" -> "too many registers") + MAXREGS 
changed to 255 (no reason not to use maximum allowed)
 2015-04-29 15:24:11 -03:00
Roberto Ierusalimschy
e723c75c02 details (avoid 'lint' warnings) 2015-03-28 16:14:47 -03:00
Roberto Ierusalimschy
8e5290d81e all "divisions" (div,idiv,mod) by zero are not folded, to avoid 
problems during compilation + does not fold zero results, as they
can collapse with -0.0 and the ANSI test to distinguish both needs
a division by zero (which we are trying to avoid) + removed macro
'luai_numinvalidop' (as its main use case were divisions by zero)
 2014-12-29 14:49:25 -02:00
Roberto Ierusalimschy
2b83711fba new macro 'nvalue' (to convert an object to a float when we know 
object is a number)
 2014-12-19 11:36:32 -02:00
Roberto Ierusalimschy
bf163ea7f0 bug ('#3' causes seg. fault in 5.3-beta) + comments + 'codearith' -> 
'codeexpval' (confusion about what operations function accept was
one of the reasons for the bug)
 2014-11-24 12:59:22 -02:00
Roberto Ierusalimschy
5fbd40dbe5 'x//y' extended to floats 2014-11-21 10:15:57 -02:00
Roberto Ierusalimschy
28fdbcf393 added include for 'lprefix.h', for stuff that must be added before 
any other header file
 2014-11-02 17:19:04 -02:00
Roberto Ierusalimschy
4542fb9f78 comments (a few extra quotes around identifiers) 2014-10-30 16:53:28 -02:00
Roberto Ierusalimschy
4b526045fa comment 2014-10-28 15:27:41 -02:00
Roberto Ierusalimschy
491103708e 'MAXSTACK' -> 'MAXREGS' and moved to 'lcode.c' (there is no reason 
to change that constant...)
 2014-10-27 14:29:58 -02:00
Roberto Ierusalimschy
bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy
42ff788e53 comments 2014-05-08 15:58:46 -03:00
Roberto Ierusalimschy
ffa43df3cd 'setnvalue' -> 'setfltvalue' (for consitency with 'fltvalue') 2014-04-29 15:14:16 -03:00
Roberto Ierusalimschy
e98ba351ce n^-m gives float result (instead of error) 2014-04-27 11:41:11 -03:00
Roberto Ierusalimschy
f61ceee708 LUAI_FUNC is being used only in header files 2014-04-02 13:44:42 -03:00
Roberto Ierusalimschy
607be77ec8 some details to avoid warnings 2014-04-01 11:39:55 -03:00
Roberto Ierusalimschy
da4811238a details (typos in comments) 2014-03-21 10:52:33 -03:00
Roberto Ierusalimschy
2aff75f58e small bug (from revision 2.80): LUA_OP* constants are not from 
enumeration 'Opcode' (they are integers)
 2014-03-09 16:21:34 -03:00
Roberto Ierusalimschy
cd12410195 new macro 'cast_void' 2014-03-07 13:19:00 -03:00
Roberto Ierusalimschy
5ff1c18a71 back with 'L' for macros 'luai_num*', but now with a new macro 
'luai_numinvalidop' to protect constant folding
 2014-03-06 13:15:18 -03:00
Roberto Ierusalimschy
99ac4a260f 'constfolding' passes a proper Lua state to 'luaO_arith' 2014-03-06 10:58:28 -03:00
Roberto Ierusalimschy
fa7e77fd38 detail ('codearith' uses 'LUA_OP*' constants instead of 'OP_*') 2014-03-06 10:39:05 -03:00
Roberto Ierusalimschy
19ad78d713 C++ needs casts for arithmetic with enums 2014-02-06 17:55:55 -02:00
Roberto Ierusalimschy
86dd8bf3f5 no more 'L' in macros "luai_num*" (several places that use those macros 
cannot throw errors anyway...)
 2014-01-27 11:34:32 -02:00
Roberto Ierusalimschy
1ea2d20f74 first implementation of '<<', '>>', and '~' (bitwise not) 2013-12-30 18:47:58 -02:00
Roberto Ierusalimschy
f5133aa1a5 small change in handling of unary operations 2013-12-18 16:44:42 -02:00
Roberto Ierusalimschy
c0edab0f6d first implementation of bitwise operators '&' (band), '|' (bor), 
and '~' (bxor)
 2013-12-18 12:12:03 -02:00
Roberto Ierusalimschy
a948054a19 new order for binary operations (grouping them by type of result) 2013-12-16 17:06:52 -02:00
Roberto Ierusalimschy
a8f8c7fd80 integer exponentiation with negative exponent is invalid 2013-12-16 12:30:22 -02:00
Roberto Ierusalimschy
8ef9e8460e bug (GC can collect long identifier during parser) + change (using 
a single constant table for all functions in a chunk)
 2013-08-30 13:01:37 -03:00
Roberto Ierusalimschy
483c2ccd0f avoid using raw representation of numbers for hashing, as number may 
not use all its space (e.g., long double can have sizeof=12 but
use only 10 bytes)
 2013-06-25 15:57:18 -03:00
Roberto Ierusalimschy
f45177f2d3 In the table that hashes constants, use a light userdata as keys 
to integer values to avoid collisions with floats with the same
numerical value
 2013-06-20 14:37:31 -03:00
Roberto Ierusalimschy
1f2b82bf25 correct way to avoid compile-time errors in integer divisions 2013-05-06 14:22:16 -03:00
Roberto Ierusalimschy
67532d5a10 constant folding and API arithmetic with integers 2013-05-02 09:37:24 -03:00
Roberto Ierusalimschy
00744a2729 'luaO_arith' -> 'luaO_numarith' 2013-04-29 13:57:48 -03:00
Roberto Ierusalimschy
a2f5c28a80 new operation '//' (integer division) 2013-04-26 10:08:29 -03:00
Roberto Ierusalimschy
5951c79ae1 default increment for 'for' loop is an integer (1, not 1.0) 2013-04-25 16:35:19 -03:00
Roberto Ierusalimschy
1294b09d8e first implementation of literal integers (no constant folding yet) 2013-04-16 15:46:28 -03:00
Roberto Ierusalimschy
7a543cfae6 2013-04-15 12:43:34 -03:00
Roberto Ierusalimschy
a3e1c40d6d remove of unecessary luaD_checkstack. (In some cases, C should 
ensure stack space; in others, Lua can use the extra slots for
temporary values.)
 2012-08-16 14:34:28 -03:00
Roberto Ierusalimschy
53480f1163 details (remove of some extra spaces) 2012-08-14 15:12:34 -03:00
Roberto Ierusalimschy
ca458f1f52 'luaK_goiffalse' exported 2011-08-30 13:26:41 -03:00
Roberto Ierusalimschy
51471ba748 comments about use of 'luaH_set' 2011-08-15 16:41:58 -03:00
Roberto Ierusalimschy
5ab6d36d99 no more field 'L' in 'FuncState' 2011-07-27 15:07:37 -03:00
Roberto Ierusalimschy
32a12e2f3f detail (cleaned whitespaces at end of lines) 2011-07-15 09:50:29 -03:00
Roberto Ierusalimschy
821bd7025e more uniform names for 'equalobj'-related functions 2011-05-31 15:27:56 -03:00
Roberto Ierusalimschy
9b7dddad7d no need for two different implementations for equality (one raw and 
one with metamethods)
 2011-05-31 15:24:36 -03:00
Roberto Ierusalimschy
d120ec29ca bug in OP_SELF when method name goes to a register 2011-04-28 11:00:11 -03:00
Roberto Ierusalimschy
4758113043 change in opcode OP_LOADNIL: B is used as a counter instead of a 
register. (Avoids an assignment to R(B), not present in any other
instruction.)
 2011-04-19 13:22:13 -03:00
Roberto Ierusalimschy
427ee519db new instruction OP_LOADKX (to replace OP_LOADK with extra argument) 2011-04-07 15:14:12 -03:00
Roberto Ierusalimschy
dd547c55c8 new scheme to close upvalues in 'break'; jump instructions may 
do the close, avoiding the need for a OP_CLOSE instruction
 2011-02-01 16:03:10 -02:00
Roberto Ierusalimschy
026a7e92be bug in some short-circuit optimizations 2011-01-31 12:28:41 -02:00
Roberto Ierusalimschy
81dd13f4c6 new way to distinguish between indexing tables in registers and 
tables in upvalues (+ fixed small bug when checking conflicts in
multiple assignments)
 2010-07-07 13:27:29 -03:00
Roberto Ierusalimschy
6a02bbe1e2 better organization for fields in struct 'expdesc' 2010-07-02 17:42:40 -03:00
Roberto Ierusalimschy
a71c5f6f53 typo in comments 2010-06-30 11:11:17 -03:00
Roberto Ierusalimschy
c066ac10a9 better line numbers for function calls and unary/binary operators + 
null statement + no more "ambiguous syntax" restriction
 2010-04-17 09:46:32 -03:00
Roberto Ierusalimschy
25c557ec63 first version of _ENV; no more global variables 2010-03-12 16:14:06 -03:00
Roberto Ierusalimschy
0fe2576a39 new instructions to optimize indexing on upvalues 2010-02-26 17:40:29 -03:00
Roberto Ierusalimschy
cef96b73e1 added casts from int to enumerations to follow C++ rules 2010-01-11 15:38:30 -02:00
Roberto Ierusalimschy
fcc46467fa limit of constants per function changed to 2^26 using extra arguments 
to opcodes LOADK, GETGLOBAL, and SETGLOBAL
 2009-09-23 17:33:05 -03:00
Roberto Ierusalimschy
1b4480003b "stange numbers" (-0 and NaN) also go to the constant table (as 
strings with their binary representation). Therefore, constant
folding may produce these results.
 2009-08-10 12:31:44 -03:00
Roberto Ierusalimschy
d7872dcf91 small optimization (reorder of BinOpr enum to unify some cases 
in switches)
 2009-06-18 13:35:05 -03:00
Roberto Ierusalimschy
96fa34ec32 constant folding uses 'luaO_arith' to perform basic operations 2009-06-17 14:49:09 -03:00
Roberto Ierusalimschy
3db5f60547 BUG: "(((1 or false) and true) or false)" gives wrong result 2009-06-15 10:52:08 -03:00
Roberto Ierusalimschy
2598138ece new function 'luaK_codek' (detail) 2009-06-10 13:52:03 -03:00
Roberto Ierusalimschy
4d7469b610 avoid constant folding for -0 (to avoid it colapsing to 0) 2008-04-07 15:41:47 -03:00
Roberto Ierusalimschy
a4d3080fe3 SETLIST extra argument now is an "instruction" (OP_EXTRAARG) 2008-04-02 14:38:54 -03:00
Roberto Ierusalimschy
81fc3c4f45 bug: code generated for "-nil", "-true", and "-false" is wrong 2007-05-04 15:41:49 -03:00
Roberto Ierusalimschy
5f4f0d4a63 no more optimization to avoid LOADNIL at function start 2007-03-27 11:11:38 -03:00
Roberto Ierusalimschy
3b19bd4d57 bug: wrong code when constant is coded after it should be 2007-03-09 15:50:56 -03:00
Roberto Ierusalimschy
742b8be0c1 detail 2006-10-10 14:39:00 -03:00
Roberto Ierusalimschy
3c8865cf66 detail 2006-09-22 17:24:38 -03:00
Roberto Ierusalimschy
bd869c7b31 details 2006-09-14 15:42:28 -03:00
Roberto Ierusalimschy
d5a23dde90 little better error messages for internal arrays overflows 2006-09-14 09:59:06 -03:00
Roberto Ierusalimschy
dfe2f1eeff macros luai_num* take a state L (when available) as argument, to allow 
them to generate errors (and other facilities)
 2006-08-07 16:14:30 -03:00
Roberto Ierusalimschy
ee41bc03ab details 2006-06-22 13:12:59 -03:00
Roberto Ierusalimschy
1ae0b6c0bf BUG: should copy the union, not (some of) its fields 2006-03-21 16:28:49 -03:00
Roberto Ierusalimschy
c505f341d6 small changes in casts 2005-12-22 14:19:56 -02:00
Roberto Ierusalimschy
db724e14e0 new macro luai_numisnan 2005-11-25 11:29:32 -02:00
Roberto Ierusalimschy
521a452f28 'mod' may also raise an error when applied to zero 2005-11-16 09:55:27 -02:00
Roberto Ierusalimschy
e43e95553f more privacy 2005-11-08 17:44:31 -02:00
Roberto Ierusalimschy
8e48ebb638 no more L in numer-operator macros (some functions that use those macros 
have no access to L)
 2005-10-24 15:37:52 -02:00
Roberto Ierusalimschy
e9b06c506f small optimization 2005-10-13 09:21:51 -03:00
Roberto Ierusalimschy
e251e84e0f constant folding optimizations 2005-10-09 17:05:48 -03:00
Roberto Ierusalimschy
5dbb870815 small optimization for local declarations without initializations 2005-09-30 11:23:33 -03:00
Roberto Ierusalimschy
3b19af44b0 new method to handle tests without values (negative values) 2005-08-29 17:49:21 -03:00
Roberto Ierusalimschy
074352911f new coding for while and repeat (with new scoping for repeat) 2005-08-17 15:32:09 -03:00
Roberto Ierusalimschy
746a1d612b small bug (type error) 2005-06-07 15:53:45 -03:00
Roberto Ierusalimschy
f21e9c172f details 2005-05-20 12:53:42 -03:00
Roberto Ierusalimschy
04bbd01171 new operation *t (for size of t) (may yet be removed...) 2005-03-16 13:59:21 -03:00
Roberto Ierusalimschy
370d31a559 luac´ -> luai' (to avoid confusion with other luac stuff) 2005-03-09 13:28:07 -03:00
Roberto Ierusalimschy
f8df21bd20 `luaconf.h´ exports all its definitions always (so all of them 
must have a lua/LUA prefix).
 2005-03-08 17:10:05 -03:00
Roberto Ierusalimschy
8ddfe3df29 macros for all arithmetic operations over lua_Numbers 2005-01-10 16:17:39 -02:00
Roberto Ierusalimschy
c78940f21a static names do not need `luaX_' prefix 2004-12-03 18:50:25 -02:00
Roberto Ierusalimschy
5ee87acd6b small optimization for boolean constants + new format for SETLIST opcode 2004-10-04 16:01:53 -03:00
Roberto Ierusalimschy
4b12eff801 small correction (less conservative write barrier for tables) 2004-08-24 17:09:11 -03:00
Roberto Ierusalimschy
31e48f26ed small bug 2004-07-16 10:30:53 -03:00
Roberto Ierusalimschy
02a2c01ccd new way to code RK values 2004-06-29 15:49:02 -03:00
Roberto Ierusalimschy
616438fe9a new way to use vararg' parameters (with ...') 2004-05-31 15:51:50 -03:00
Roberto Ierusalimschy
b4cd38ba6c new scheme for configuration through `luaconf.h' 2004-04-30 17:13:38 -03:00
Roberto Ierusalimschy
47fc57a252 TObject' renamed to TValue' + other name changes and better assertions 
for incremental garbage collection
 2003-12-10 10:13:36 -02:00
Roberto Ierusalimschy
df429f163a First version of incremental GC 2003-12-09 14:56:11 -02:00
Roberto Ierusalimschy
8bc6c68021 details 2003-11-19 17:59:18 -02:00
Roberto Ierusalimschy
8332d5c8a5 parser fully reentrant(!) 2003-08-27 18:01:44 -03:00
Roberto Ierusalimschy
c116dcb92b better information about instruction behavior (use of arguments) 2003-05-14 09:09:12 -03:00
Roberto Ierusalimschy
0d88545b82 warnings from several compilers (mainly typecasts when lua_Number is float) 2003-04-03 10:35:34 -03:00
Roberto Ierusalimschy
e1a424e8a3 avoid the identifier index' (clashes with BSD index' function) 2003-02-27 09:33:07 -03:00
Roberto Ierusalimschy
73517e86b0 OP_TFORLOOP uses extra stack space 2002-12-11 10:34:22 -02:00
Roberto Ierusalimschy
27c6b4d422 each .c file defines its own name 2002-12-04 15:38:31 -02:00
Roberto Ierusalimschy
41fd639cab documentation for write barriers 2002-11-14 14:15:53 -02:00
Roberto Ierusalimschy
c196348717 in case of memory allocation errors, sizecode and sizelineinfo can 
be different
 2002-10-16 17:40:58 -03:00
Roberto Ierusalimschy
fbc23d0245 details 2002-08-21 15:56:33 -03:00
Roberto Ierusalimschy
6c283b2f4f new simetric format for ABC instructions, to avoid exchanging operands 
for `commutative' operators
 2002-08-20 17:03:05 -03:00
Roberto Ierusalimschy
5037196f6f new macros `ttis*' 2002-08-05 11:50:39 -03:00
Roberto Ierusalimschy
864c96f36c new fallback for equality `__eq' 2002-06-13 10:39:55 -03:00
Roberto Ierusalimschy
eeab473fc8 new fallback __le (less equal), for partial order 2002-06-12 11:56:22 -03:00
Roberto Ierusalimschy
cfff013586 detail 2002-06-03 14:47:18 -03:00
Roberto Ierusalimschy
46c471d7e9 new `__newindex' eventfield 2002-05-27 17:35:40 -03:00
Roberto Ierusalimschy
1c328a191a no more `global' declarations 2002-05-14 14:52:22 -03:00
Roberto Ierusalimschy
b55fded18c details about jump optimization 2002-05-13 10:07:48 -03:00
Roberto Ierusalimschy
2dadc81822 cleaner implementation of code generation for jumps 2002-05-10 16:22:11 -03:00
Roberto Ierusalimschy
b487975344 optimization for `while' (first version) 2002-05-10 14:02:32 -03:00
Roberto Ierusalimschy
78b40bf57d `skip' instructions must be followed by a jump 2002-05-09 11:14:34 -03:00
Roberto Ierusalimschy
dea6b6da94 new function lua_vpushstr' to replace uses of sprintf' 2002-05-07 14:36:56 -03:00
Roberto Ierusalimschy
0dbf0c5953 new format for test intructions (handle NaN correctly) 2002-05-06 12:51:41 -03:00
Roberto Ierusalimschy
9b38a696d5 avoid names that differ only in capitalization 2002-04-24 17:07:46 -03:00
Roberto Ierusalimschy
3ee1efa7b2 some simplifications 2002-04-22 11:37:09 -03:00