Roberto Ierusalimschy
758c1ef445
Unification of size representation in OP_NEWTABLE and OP_SETLIST
...
Opcodes OP_NEWTABLE and OP_SETLIST use the same representation to
store the size of the array part of a table. This new representation
can go up to 2^33 (8 + 25 bits).
2019-07-15 14:59:35 -03:00
Roberto Ierusalimschy
1fb4d53925
OP_NEWTABLE keeps exact size of arrays
...
OP_NEWTABLE is followed by an OP_EXTRAARG, so that it can keep
the exact size of the array part of the table to be created.
(Functions 'luaO_int2fb'/'luaO_fb2int' were removed.)
2019-07-12 16:13:50 -03:00
Roberto Ierusalimschy
f6aab3ec1f
First implementation of constant propagation
...
Local constant variables initialized with compile-time constants
are optimized away from the code.
2019-07-12 11:38:42 -03:00
Roberto Ierusalimschy
54f7b46c1e
New implementation for constants
...
VLOCAL expressions keep a reference to their corresponding 'Vardesc',
and 'Upvaldesc' (for upvalues) has a field 'ro' (read-only). So, it is
easier to check whether a variable is read-only. The decoupling in
VLOCAL between 'vidx' ('Vardesc' index) and 'sidx' (stack index)
should also help the forthcoming implementation of compile-time
constant propagation.
2019-07-09 10:43:17 -03:00
Roberto Ierusalimschy
8eca21c2e8
First take on constant propagation
2019-07-01 12:42:31 -03:00
Roberto Ierusalimschy
a006514ea1
Big revamp in the implmentation of labels/gotos
...
Added restriction that, when a label is created, there cannot be
another label with the same name visible. That allows backward goto's
to be resolved when they are read. Backward goto's get a close if
they jump out of the scope of some variable; labels get a close only
if previous goto to it jumps out of the scope of some upvalue.
2018-10-29 14:26:48 -03:00
Roberto Ierusalimschy
f99509581e
Removed extra information from RCS keyword strings
...
Version numbers and dates (mostly wrong) from RCS keyword strings
removed from all source files; only the file name are kept.
2018-08-23 14:26:12 -03:00
Roberto Ierusalimschy
03c6a05ec8
no more nil-in-table
2018-04-04 11:23:41 -03:00
Roberto Ierusalimschy
6486762463
missing LUAI_FUNC in prototype for 'luaK_patchgoto'
2018-03-19 17:03:44 -03:00
Roberto Ierusalimschy
4a1612ff9b
new experimental syntax using reserved word 'undef'
2018-03-07 12:55:38 -03:00
Roberto Ierusalimschy
ab07005568
new auxiliary function 'luaK_isKint' + removal of 'luaK_needclose',
...
which was not being used anywhere.
2017-12-18 13:44:44 -02:00
Roberto Ierusalimschy
10b8c99bbb
small peephole optimizations
2017-11-30 11:29:18 -02:00
Roberto Ierusalimschy
a1ef58b3a5
eplicit 1-bit opcode operand 'k'
2017-10-04 18:56:32 -03:00
Roberto Ierusalimschy
722bdbe17d
no more 'getBMode'-'getCMode' (imprecise + we will need more space
...
for op mode) + better control of op modes
2017-09-28 13:53:29 -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
6a98aa0bb0
new opcode LOADI (for loading immediate integers)
2017-04-20 16:53:55 -03:00
Roberto Ierusalimschy
1f259be52a
'getcode' -> 'getinstruction'
2016-01-05 14:22:37 -02:00
Roberto Ierusalimschy
1ea2d20f74
first implementation of '<<', '>>', and '~' (bitwise not)
2013-12-30 18:47:58 -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
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
ca458f1f52
'luaK_goiffalse' exported
2011-08-30 13:26:41 -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
6a02bbe1e2
better organization for fields in struct 'expdesc'
2010-07-02 17:42:40 -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
0fe2576a39
new instructions to optimize indexing on upvalues
2010-02-26 17:40:29 -03:00
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
d7872dcf91
small optimization (reorder of BinOpr enum to unify some cases
...
in switches)
2009-06-18 13:35:05 -03:00
Roberto Ierusalimschy
2598138ece
new function 'luaK_codek' (detail)
2009-06-10 13:52:03 -03:00
Roberto Ierusalimschy
9e58e0df8f
some cleaning
2008-10-28 10:55:00 -02:00
Roberto Ierusalimschy
e1dda047b2
unused macro
2006-03-21 16:28:03 -03:00
Roberto Ierusalimschy
e43e95553f
more privacy
2005-11-08 17:44:31 -02:00
Roberto Ierusalimschy
6dd0c6ccbc
numeral expressions keep their values in struct 'expdesc'
2005-10-03 11:02:40 -03:00
Roberto Ierusalimschy
3b19af44b0
new method to handle tests without values (negative values)
2005-08-29 17:49:21 -03:00
Roberto Ierusalimschy
f21e9c172f
details
2005-05-20 12:53:42 -03:00
Roberto Ierusalimschy
8718fda9b2
added LUAI_FUNC to functions not in the API
2005-04-25 16:24:10 -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
7d57ea70bc
new mod' (%') operator
2005-03-08 15:00:16 -03:00
Roberto Ierusalimschy
5ee87acd6b
small optimization for boolean constants + new format for SETLIST opcode
2004-10-04 16:01:53 -03:00
Roberto Ierusalimschy
616438fe9a
new way to use vararg' parameters (with ...')
2004-05-31 15:51:50 -03:00
Roberto Ierusalimschy
73517e86b0
OP_TFORLOOP uses extra stack space
2002-12-11 10:34:22 -02:00
Roberto Ierusalimschy
0052930ffe
details
2002-06-12 16:16:00 -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
dea6b6da94
new function lua_vpushstr' to replace uses of sprintf'
2002-05-07 14:36:56 -03:00
Roberto Ierusalimschy
9b38a696d5
avoid names that differ only in capitalization
2002-04-24 17:07:46 -03:00
Roberto Ierusalimschy
f1f271ae76
details
2002-04-10 15:05:08 -03:00
