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129 Commits

Author SHA1 Message Date
Mike Pall
ff0a1f3f4e FOLD x / 2^k ==> x * 2^-k. 2012-08-15 16:17:34 +02:00
Mike Pall
e8af6e9da4 Don't treat all constified cdata content as constant. 2012-07-24 14:56:29 +02:00
Mike Pall
4d9c29a78c FFI: Box all accessed or returned enums. 2012-07-17 22:22:07 +02:00
Mike Pall
2139c6791f Fix FOLD rule (i-j)-i => 0-j. 
Thanks to Thomas Schilling.
 2012-07-17 21:47:45 +02:00
Mike Pall
c172e7aa30 Workaround for MSVC conversion bug (double -> uint32_t -> int32_t). 2012-07-17 21:45:49 +02:00
Mike Pall
17d3fc47f3 Avoid pesky compiler warnings about C++ keywords (eh?). 2012-07-03 13:19:32 +02:00
Mike Pall
a9bf455b96 Add HREFK forwarding. Eliminate HREFK guard for TDUP refs. 2012-06-28 15:10:52 +02:00
Mike Pall
5032e6d87f FFI: Use CNEWI/FLOAD to box/access ffi.new("int", x) (for varargs). 2012-06-04 15:39:16 +02:00
Mike Pall
10ef109eef Bump copyright date to 2012. 2012-01-23 22:42:42 +01:00
Mike Pall
455917fa0a Add more FOLD rules for shift + BAND simplifications. 2011-10-25 21:16:27 +02:00
Mike Pall
aa502203a6 Add missing FOLD rule for CONV.u64.int + sign-extension. 2011-10-22 02:03:07 +02:00
Mike Pall
a39aac0445 Fix FOLD rule for CONV.flt.num(CONV.num.flt(x)) => x. 2011-10-19 01:52:50 +02:00
Mike Pall
270de2d6cc Add missing FOLD rule for integer NEG of constants. 2011-10-17 17:21:09 +02:00
Mike Pall
f34ac81e3a Remove unneeded PHI barrier for reassociation of duplicate ops. 2011-10-10 20:35:42 +02:00
Mike Pall
8c5935000d Add narrowing of modulo operator. 2011-06-03 18:48:02 +02:00
Mike Pall
fff2fb31f9 ARM: Don't generate unaligned XLOADs. 2011-06-02 01:46:23 +02:00
Mike Pall
7683f39786 ARM: Fix math.ldexp() recording and folding. 2011-05-27 02:03:02 +02:00
Mike Pall
185554b682 ARM: Unify rotates to simplify assembler backend. 2011-05-23 20:20:34 +02:00
Mike Pall
28e87d33e9 Use common helper functions for unaligned loads. 2011-05-09 18:09:29 +02:00
Mike Pall
89022b4c3e Use lj_vm_tobit() on targets without FPU. 2011-04-10 16:58:22 +02:00
Mike Pall
3acd4892e9 Add FOLD rule for FLOAT->NUM->FLOAT conversions. 2011-04-05 16:31:48 +02:00
Mike Pall
dcbae09b1d DUALNUM: Narrow unary minus. 2011-03-15 18:14:18 +01:00
Mike Pall
7fb1075903 DUALNUM: Add integer variant of MIN/MAX. 2011-03-11 23:28:46 +01:00
Mike Pall
889368e921 Get rid of the remaining silly cast macros from Lua. 2011-03-10 02:13:43 +01:00
Mike Pall
bfce3c1127 DUALNUM: Handle integer type in JIT compiler. 2011-03-10 01:57:24 +01:00
Mike Pall
3f26e3a89d FFI: Fix and optimize recording of cdata[cdata]. 2011-03-10 01:41:58 +01:00
Mike Pall
54978e481b DUALNUM: Make overflow guards weak. Add IR_USE and IR_MULOV. 2011-03-07 20:21:38 +01:00
Mike Pall
e1aa8d0d97 FFI: Fix compiled ffi.string() semantics. 2011-02-28 19:47:51 +01:00
Mike Pall
97d0874ff5 Add IR_XBAR, a barrier against XLOAD/XSTORE optimizations. 2011-02-07 21:59:25 +01:00
Mike Pall
4c74f70464 Strength-reduce 32 to 64 bit widening for XLOAD U8/U16 inputs. 2011-02-06 00:45:39 +01:00
Mike Pall
26fadcd25b FFI: Record simple C function calls. 
Only handles cdecl and fixarg C functions.
Doesn't handle pass-by-value aggregates.
Doesn't handle 64 bit args/returns on 32 bit CPUs.
 2011-02-05 21:50:15 +01:00
Mike Pall
14f5103764 FFI: Record C library namespace lookups. 2011-02-05 14:16:16 +01:00
Mike Pall
1abf5d4d26 FFI: Disable MUL => BSHL FOLD rule on 32 bit. 2011-02-03 20:10:13 +01:00
Mike Pall
df65b8b419 FFI: Rename IR_CNEWP to IR_CNEWI and use it to box 64 bit integers. 
Generates smaller IR and DCE eliminates many intermediate boxes.
Needs allocation sinking to eliminate the boxes kept alive by PHIs.
 2011-02-03 04:22:27 +01:00
Mike Pall
1027018b21 Rename IR_POWI to IR_POW. 2011-02-02 21:33:11 +01:00
Mike Pall
433fd18f6d FFI: Add basic FOLD rules for 64 bit integer DIV, MOD and POWI. 2011-02-02 21:25:43 +01:00
Mike Pall
b613216efc Add SPLIT pass to split 64 bit IR instructions for 32 bit CPUs. 
Add generic HIOP instruction for extra backend functionality.
Add support for HIOP to x86 backend.
Use POWI for 64 bit integer x^k, too.
POWI is lowered to a call by SPLIT or the x64 backend.
 2011-02-02 02:29:37 +01:00
Mike Pall
6fee0002b9 Fix 64 bit case of (SUB x x) and (BXOR x x) FOLD rules. 2011-01-28 02:17:35 +01:00
Mike Pall
925050fe3f Differentiate between IR_KPTR and IR_KKPTR. 
IR_KPTR holds a const pointer to possibly non-const content.
IR_KKPTR holds a const pointer to definitely const content.
Note that only content known by the VM to be const qualifies.
Content tagged as const by users (e.g. const char *) doesn't.
 2011-01-19 00:40:03 +01:00
Mike Pall
59643c86fb Add FOLD rule for CONV.num.u32 KINT. 2011-01-13 17:18:08 +01:00
Mike Pall
06f99fc3df Bump copyright date to 2011. 2011-01-09 17:12:53 +01:00
Mike Pall
b2c74c52cc FFI: Add support for cdata constants to IR. 2011-01-02 22:21:10 +01:00
Mike Pall
783dbd335f Refactoring of conversion ops, part 5: drop TOINT/TOI64/TONUM. 2010-12-31 04:09:32 +01:00
Mike Pall
1716540c55 Refactoring of conversion ops, part 4: use CONV instead of TOINT/TONUM. 
Also narrow CONV.int.num and CONV.i64.num.
 2010-12-31 03:56:30 +01:00
Mike Pall
1f26961092 Refactoring of conversion ops, part 3: add FOLD rules for IR_CONV. 2010-12-31 03:47:30 +01:00
Mike Pall
65b194a2f8 Copy destination type for CONV from ir->t to op2, too. 2010-12-31 01:00:54 +01:00
Mike Pall
2ca2de7f0e Refactoring of conversion ops, part 1: add IR_CONV. 2010-12-30 00:35:32 +01:00
Mike Pall
255c6e8c87 FFI: Drop IR_CNEWI. Add IR_CNEWP only for pointers/refs. 2010-12-17 17:20:04 +01:00
Mike Pall
c98132e182 FFI: FOLD load of initializers even across PHIs. 2010-12-17 16:47:28 +01:00
Mike Pall
74317fa0ef Add alias analysis for XLOAD/XSTORE. Add DSE for XSTORE. 2010-12-12 22:32:52 +01:00
Mike Pall
a403cb13e4 Add missing PHI barrier to strength reduction of widening. 2010-12-12 21:05:34 +01:00
Mike Pall
42f9b38663 Extend all FOLD rules to work on 64 bit integers. 2010-12-11 21:20:49 +01:00
Mike Pall
5f7e9173db Regroup FOLD rules for constant folding. 2010-12-11 20:08:07 +01:00
Mike Pall
cdac0fa2cb FFI: Add IR_CNEW/IR_CNEWI to allocate/init cdata objects. 2010-12-11 19:32:12 +01:00
Mike Pall
1d86090926 Strength-reduce 32 to 64 bit widening using scalar evolution analysis. 2010-12-09 16:12:59 +01:00
Mike Pall
4f0d3e8262 Apply narrowing optimization to IR_TOI64, too. 2010-12-08 21:03:45 +01:00
Mike Pall
f308e00e03 Add FOLD rule to reassociate 64 bit (x+k1)+k2. 2010-12-08 20:57:21 +01:00
Mike Pall
159f51d811 Add IR_TOI64. 2010-12-06 18:21:51 +01:00
Mike Pall
f6c4e8d3d7 Add FOLD rule to turn i << 1 into i + i. 2010-12-06 13:26:58 +01:00
Mike Pall
86fd2289f0 Add support for integer IR_MUL. 2010-12-06 12:54:00 +01:00
Mike Pall
a850b27da9 Avoid compiler warnings. 2010-12-06 03:07:10 +01:00
Mike Pall
db3d16bfd7 Add IR_XSTORE. 2010-12-06 01:48:19 +01:00
Mike Pall
281f426d60 Add minimal set of fold rules for KINT64. 2010-12-06 00:38:21 +01:00
Mike Pall
6a7605ec85 Rename IRT_PTR to IRT_P32. 2010-12-05 18:59:34 +01:00
Mike Pall
3ae27ffebe Drop redundant (UGE any +0). 2010-09-21 02:44:18 +02:00
Mike Pall
38628d93b8 Improve FOLD/CSE of field loads and array/hash refs across NEWREF. 2010-09-21 02:28:14 +02:00
Mike Pall
8dc76ee327 Add IR_VLOAD for vararg loads. 
Also fixes the broken AA improvement in the last commit.
 2010-09-14 19:58:27 +02:00
Mike Pall
847b9cf253 Record vararg expressions with varargs defined off-trace. 
Add SLOAD variant to access the frame type/size.
 2010-09-13 01:17:38 +02:00
Mike Pall
844e40d700 PPC: Clean up masked shift/rotate target settings. 2010-08-29 12:52:20 +02:00
Mike Pall
ab45481199 No longer let the GC replace dead keys with the LJ_TDEADKEY tag. 
Important: this changes the semantics of the write barrier!
Carefully read the big comment block in lj_obj.h
This helps HREFK key slot specialization and allows safely hoisting
HREF/HREFK across GC steps, too (fix for a barely reproducible bug).
Dead keys are only removed during a table resize (as before).
 2010-04-21 01:45:58 +02:00
Mike Pall
1d1d9221f3 Fold HREF of TNEW/TDUP to niltv. Fold HLOAD of niltv to nil. 2010-03-28 06:53:41 +02:00
Mike Pall
c4727220e8 Add array bounds check elimination (-Oabc, on by default). 2010-03-15 17:02:53 +01:00
Mike Pall
a25a717089 Fix folding of (comparison x x). 2010-03-14 17:10:47 +01:00
Mike Pall
370c868c31 RETF modifies BASE. Treat it like a store or it gets CSEd. 2010-02-04 21:36:32 +01:00
Mike Pall
99d153bef9 Improve alias analysis of upvalues using a disambiguation hash value. 
All upvalue objects hold a disambiguation hash value now.
It's built from the parent prototype and the slot number.
Different hash values imply the upvalues cannot alias.
Same hash values don't imply anything (collision or different closures).
Upvalue disambiguation makes use of a reduced hash due to IR contraints.
 2010-01-09 23:59:43 +01:00
Mike Pall
4d9be5b8f8 Bump all copyright dates to 2010. 2010-01-09 14:28:11 +01:00
Mike Pall
3f1f9e11f4 Fast forward to sync public repo. 
Compile math.sinh(), math.cosh(), math.tanh() and math.random().
Compile various io.*() functions.
Drive the GC forward on string allocations in the parser.
Improve KNUM fuse vs. load heuristics.
Add abstract C call handling to IR.
 2009-12-08 20:35:29 +01:00
Mike Pall
1d1fed48a0 RELEASE LuaJIT-2.0.0-beta2 2009-12-08 19:49:20 +01:00
Mike Pall
55b1695971 RELEASE LuaJIT-2.0.0-beta1 2009-12-08 19:46:35 +01:00