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18578 Commits

Author SHA1 Message Date
Evan Cheng 0ba174534c Match MachineFunction::UsedPhysRegs changes. 
llvm-svn: 36452
 2007-04-25 22:13:27 +00:00
Evan Cheng d21968d11a Change UsedPhysRegs from array bool to BitVector to save some space. Setting / getting its states now go through MachineFunction. 
llvm-svn: 36451
 2007-04-25 22:10:09 +00:00
Evan Cheng d4549c5527 Clean up. 
llvm-svn: 36449
 2007-04-25 21:34:08 +00:00
Bill Wendling 157d7ee7e5 Add SSSE3 as a feature of Core2. Add MMX registers to the list of registers 
clobbered by a call.

llvm-svn: 36448
 2007-04-25 21:31:48 +00:00
Evan Cheng 0fbe14ab87 Data structure change to improve compile time (especially in debug mode). 
llvm-svn: 36447
 2007-04-25 19:34:00 +00:00
Evan Cheng 15f269afa3 This was lefted out. Fixed sumarray-dbl. 
llvm-svn: 36445
 2007-04-25 18:33:21 +00:00
Devang Patel d3ccc073a2 Mem2Reg does not need TargetData. 
llvm-svn: 36444
 2007-04-25 18:32:35 +00:00
Anton Korobeynikov 5e4e8f5e09 Add missed semicolon. Resotre compatibility with older bisons 
llvm-svn: 36443
 2007-04-25 18:07:40 +00:00
Chris Lattner d20cd6658a do the multiplication as signed, so that 2*-2 == -4 instead of 4294967292 
when promoted to 64-bits

llvm-svn: 36442
 2007-04-25 17:23:53 +00:00
Devang Patel 073be55d8e Remove unused function argument. 
llvm-svn: 36441
 2007-04-25 17:15:20 +00:00
Lauro Ramos Venancio 4ae9425bb6 remember to emit weak reference in one more case. 
llvm-svn: 36438
 2007-04-25 14:50:40 +00:00
Anton Korobeynikov e9fcbefa9a Regenerate 
llvm-svn: 36437
 2007-04-25 14:29:12 +00:00
Anton Korobeynikov a97b694c82 Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part 
will follow.

llvm-svn: 36435
 2007-04-25 14:27:10 +00:00
Evan Cheng 7818c03c6b Fix for PR1306. 
- A register def / use now implicitly affects sub-register liveness but does
not affect liveness information of super-registers.
- Def of a larger register (if followed by a use later) is treated as
read/mod/write of a smaller register.

llvm-svn: 36434
 2007-04-25 07:30:23 +00:00
Evan Cheng 11dc5abde1 Clean up. 
llvm-svn: 36431
 2007-04-25 07:18:20 +00:00
Evan Cheng 8cd224e81c Relex assertions to account for additional implicit def / use operands. 
llvm-svn: 36430
 2007-04-25 07:12:14 +00:00
Chris Lattner 827cb98a0a If an alloca only has two types of uses: 1) reads 2) a memcpy/memmove that 
copies from a constant global, then we can change the reads to read from the
global instead of from the alloca.  This eliminates the alloca and the memcpy,
and promotes secondary optimizations (because the loads are now loads from
a constant global).

This is important for a common C idiom:

void foo() {
   int A[] = {1,2,3,4,5,6,7,8,9...};
   ... only reads of A ...
}

For some reason, people forget to mark the array static or const.

This triggers on these multisource benchmarks:
JM/ldecode: block_pos, [3 x [4 x [4 x i32]]]
FreeBench/mason: m, [18 x i32], inlined 4 times
MiBench/office-stringsearch: search_strings, [1332 x i8*]
MiBench/office-stringsearch: find_strings, [1333 x i8*]
Prolangs-C++/city: dirs, [9 x i8*], inlined 4 places

and these spec benchmarks:
177.mesa: message, [8 x [32 x i8]]
186.crafty: bias_rl45, [64 x i32]
186.crafty: diag_sq, [64 x i32]
186.crafty: empty, [9 x i8]
186.crafty: xlate, [15 x i8]
186.crafty: status, [13 x i8]
186.crafty: bdinfo, [25 x i8]
445.gobmk: routines, [16 x i8*]
458.sjeng: piece_rep, [14 x i8*]
458.sjeng: t, [13 x i32], inlined 4 places.
464.h264ref: block8x8_idx, [3 x [4 x [4 x i32]]]
464.h264ref: block_pos, [3 x [4 x [4 x i32]]]
464.h264ref: j_off_tab, [12 x i32]

This implements Transforms/ScalarRepl/memcpy-from-global.ll

llvm-svn: 36429
 2007-04-25 06:40:51 +00:00
Chris Lattner bbe9b8a12f simplify some code 
llvm-svn: 36427
 2007-04-25 05:49:09 +00:00
Chris Lattner 31e5addb67 refactor the SROA code out into its own method, no functionality change. 
llvm-svn: 36426
 2007-04-25 05:02:56 +00:00
Chris Lattner b975bebec1 support for >4G stack frames 
llvm-svn: 36425
 2007-04-25 04:30:24 +00:00
Chris Lattner 1ef35a2721 support >4G stack frames 
llvm-svn: 36423
 2007-04-25 04:25:10 +00:00
Chris Lattner 9bd98ea4c1 support > 4G stack objects 
llvm-svn: 36422
 2007-04-25 04:20:54 +00:00
Owen Anderson 510fefcd8a Undo my previous changes. Since my approach to this problem is being revised, 
this approach is no longer appropriate.

llvm-svn: 36421
 2007-04-25 04:18:54 +00:00
Chris Lattner cb0ed0cfbd allow support for 64-bit stack objects 
llvm-svn: 36420
 2007-04-25 04:08:28 +00:00
Devang Patel d3208523b2 Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070423/048376.html

llvm-svn: 36417
 2007-04-25 00:37:04 +00:00
Chris Lattner 01a26c74ae Be more careful about folding op(x, undef) when we have vector operands. 
This fixes CodeGen/X86/2007-04-24-VectorCrash.ll

llvm-svn: 36413
 2007-04-25 00:00:45 +00:00
Chris Lattner cb35c61a4b Fix PR1351 and CodeGen/PowerPC/2007-04-24-InlineAsm-I-Modifier.ll 
llvm-svn: 36410
 2007-04-24 22:51:03 +00:00
Bill Wendling a784d875be Update. 
llvm-svn: 36407
 2007-04-24 21:20:03 +00:00
Bill Wendling b3b6c35beb Add the PADDQ to the list. 
llvm-svn: 36406
 2007-04-24 21:19:14 +00:00
Bill Wendling 5c7f25632e Add the final MMX instructions. Correct a few wrong patterns. 
llvm-svn: 36405
 2007-04-24 21:18:37 +00:00
Bill Wendling e2324ca17d Remove some invalid instructions from this check. 
llvm-svn: 36404
 2007-04-24 21:17:46 +00:00
Bill Wendling 591eab8844 Support for the special case of a vector with the canonical form: 
vector_shuffle v1, v2, <2, 6, 3, 7>

I.e.

         vector_shuffle v, undef, <2, 2, 3, 3>

MMX only has a shuffle for v4i16 vectors. It needs to use the unpackh for
this type of operation.

llvm-svn: 36403
 2007-04-24 21:16:55 +00:00
Bill Wendling 47917b697f Assertion when using a 1-element vector for an add operation. Get the 
real vector type in this case.

llvm-svn: 36402
 2007-04-24 21:13:23 +00:00
Chris Lattner 890683d636 ensure that every error return sets a message (and goes through Error, for 
easy breakpointing).

Fix bugs reading constantexpr geps.  We now can disassemble kc++ global
initializers.

llvm-svn: 36398
 2007-04-24 18:15:21 +00:00
Chris Lattner 0ee6a3a561 fix memory leak 
llvm-svn: 36397
 2007-04-24 17:22:05 +00:00
Chris Lattner c86d3f691b fix a memory leak 
llvm-svn: 36396
 2007-04-24 17:20:52 +00:00
Chris Lattner 1e16bcf7ff implement reading and writing of constant exprs. 
llvm-svn: 36394
 2007-04-24 07:07:11 +00:00
Owen Anderson c24701ed7f Rollback some changes that adversely affected performance. I'm currently rethinking 
my approach to this, so hopefully I'll find a way to do this without making this slower.

llvm-svn: 36392
 2007-04-24 06:40:39 +00:00
Chris Lattner 1663ccaf13 implement support for reading aggregate constants, including handling forward 
constant references, etc.

llvm-svn: 36391
 2007-04-24 05:48:56 +00:00
Chris Lattner 08feb1e73a add supprot for FP constants, wide integers, and fix the encoding of MININT 
llvm-svn: 36390
 2007-04-24 04:04:35 +00:00
Chris Lattner fbc1d33b81 read basic constants: null, undef, integers <= 64bits 
llvm-svn: 36389
 2007-04-24 03:30:34 +00:00
Chris Lattner 1e50c299a8 fix off-by-one computing size for section abbrevs 
llvm-svn: 36388
 2007-04-24 03:29:47 +00:00
Scott Michel 4cfa616cee Use '-1U' where '-1UL' is obvious overkill, eliminating gcc warnings about 
tests always being true in the process.

llvm-svn: 36387
 2007-04-24 01:24:20 +00:00
Chris Lattner a272ead35a move check to the right place :) 
llvm-svn: 36386
 2007-04-24 00:21:45 +00:00
Chris Lattner 47d131bd32 track global inits 
llvm-svn: 36385
 2007-04-24 00:18:21 +00:00
Chris Lattner 52523561d9 Emit module-level constants. 
llvm-svn: 36384
 2007-04-24 00:16:04 +00:00
Dale Johannesen 8653d29b45 modify per review commentary 
llvm-svn: 36383
 2007-04-23 23:33:31 +00:00
Devang Patel 38bc86f057 Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070423/048333.html

llvm-svn: 36380
 2007-04-23 22:42:03 +00:00
Chris Lattner ccaa448dcf Read global symtab 
llvm-svn: 36378
 2007-04-23 21:26:05 +00:00
Chris Lattner 1e93f5b8f4 fix off-by one 
llvm-svn: 36377
 2007-04-23 21:23:41 +00:00
Chris Lattner 215e9cd3c2 write out the symtab for globals. 
llvm-svn: 36374
 2007-04-23 20:35:01 +00:00
Dale Johannesen fdfb757682 Make Thumb funcs containing islands 4-byte aligned. Fix bugs maintaining 
BBOffsets and BBSizes when adjusting conditional branches.

llvm-svn: 36372
 2007-04-23 20:09:04 +00:00
Dale Johannesen ed0ecdb7ff add Align field, and use when generating function alignment 
llvm-svn: 36371
 2007-04-23 20:07:25 +00:00
Dale Johannesen 8eb9bff493 add isThumb (unused as yet) 
llvm-svn: 36370
 2007-04-23 20:04:35 +00:00
Dale Johannesen 0a1069d526 Fix generic getInlineAsmLength 
llvm-svn: 36369
 2007-04-23 20:00:17 +00:00
Dale Johannesen 14a28f13c8 make EmitAlignment work the way Chris says it should 
llvm-svn: 36368
 2007-04-23 19:58:54 +00:00
Chris Lattner b5491378b1 implement reading of abbrevs, and writing of abbreviated global varrs. 
llvm-svn: 36367
 2007-04-23 18:58:34 +00:00
Chris Lattner 4b00d92a09 first part of implementation of abbrevs. The writer isn't fully there yet and the 
reader doesn't handle them at all yet.

llvm-svn: 36363
 2007-04-23 16:04:05 +00:00
Reid Spencer e2e9b37698 Cygwin doesn't have the RSS_LIMIT for get/setrlimit. 
llvm-svn: 36361
 2007-04-23 07:22:51 +00:00
Lauro Ramos Venancio 6db679a49a X86 TLS: optimize the implementation of "local exec" model. 
llvm-svn: 36359
 2007-04-23 01:28:10 +00:00
Chris Lattner 362b4a1c92 promote LLVMBitCodes to be a public header 
llvm-svn: 36358
 2007-04-23 01:01:37 +00:00
Christopher Lamb 8af6d5896f PR400 phase 2. Propagate attributed load/store information through DAGs. 
llvm-svn: 36356
 2007-04-22 23:15:30 +00:00
Lauro Ramos Venancio efb8077ddd X86 TLS: fix and optimize the implementation of "initial exec" model. 
llvm-svn: 36355
 2007-04-22 22:50:52 +00:00
Christopher Lamb f9206e267d PR400 phase 1 implementation feedback. 
llvm-svn: 36354
 2007-04-22 22:22:02 +00:00
Jeff Cohen af9a8a51a8 Have compiler enforce this. 
llvm-svn: 36353
 2007-04-22 22:16:55 +00:00
Christopher Lamb 297fcb0f73 Support alignment queries for degenerate (length 1) vectors. 
llvm-svn: 36352
 2007-04-22 21:54:13 +00:00
Christopher Lamb 3f706f22ab Regenerated 
llvm-svn: 36350
 2007-04-22 20:09:11 +00:00
Christopher Lamb 8448570beb PR400 work phase 1. Add attributed load/store instructions for volatile/align to LLVM. 
llvm-svn: 36349
 2007-04-22 19:24:39 +00:00
Jeff Cohen 33be4c78ef Fix build problem with Gentoo 4.1.1-r3. 
llvm-svn: 36348
 2007-04-22 18:49:32 +00:00
Reid Spencer c6a83847a2 For PR1136: 
Add reference counting to ParamAttrsList and make use of it in Function,
CallInst and InvokeInst classes.

llvm-svn: 36346
 2007-04-22 17:28:03 +00:00
Chris Lattner a1b07bee6a add llvm ir bitcode definition file 
llvm-svn: 36337
 2007-04-22 07:03:00 +00:00
Chris Lattner 20571d9c35 build the bitcode dir 
llvm-svn: 36332
 2007-04-22 06:26:05 +00:00
Chris Lattner c1d10d67a1 Initial support for writing bitcode files. This currently only writes types, 
the type symtab, and global/function protos, and is missing the important
size optimization, but it is a place to start.

llvm-svn: 36331
 2007-04-22 06:24:45 +00:00
Chris Lattner 1314b9996d Initial support for reading bitcode files. They currently only read types, 
the type symtab, and global/function protos, and are missing the important
size optimization, but it is a place to start.

llvm-svn: 36330
 2007-04-22 06:23:29 +00:00
Reid Spencer 4388f0b4fa For PR1146: 
Make ParamAttrsList objects unique. You can no longer directly create or
destroy them but instead must go through the ParamAttrsList::get()
interface.

llvm-svn: 36327
 2007-04-22 05:46:44 +00:00
Lauro Ramos Venancio ee2d164f0f Implement PIC for arm-linux. 
llvm-svn: 36324
 2007-04-22 00:04:12 +00:00
Lauro Ramos Venancio 4e91908f17 X86 TLS: Implement review feedback. 
llvm-svn: 36318
 2007-04-21 20:56:26 +00:00
Reid Spencer 0c1349e6bc Revert Christopher Lamb's load/store alignment changes. 
llvm-svn: 36309
 2007-04-21 18:36:27 +00:00
Reid Spencer a68c374e7e We only need one putchar which gives it a shot at getting matched by its 
users.

llvm-svn: 36305
 2007-04-21 17:11:45 +00:00
Christopher Lamb bff50208c8 add support for alignment attributes on load/store instructions 
llvm-svn: 36301
 2007-04-21 08:16:25 +00:00
Owen Anderson 64995e1b3f Make PredicateSimplifier not use DominatorTree. 
llvm-svn: 36300
 2007-04-21 07:38:12 +00:00
Owen Anderson 2965adb849 Fix a comment. 
llvm-svn: 36299
 2007-04-21 07:12:44 +00:00
Devang Patel 2e2518cc2e Reset vertex. 
Fix http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/048092.html

llvm-svn: 36294
 2007-04-21 00:36:45 +00:00
Chris Lattner a5ebb6af95 Fix a bug that prevented the JIT from working correctly after llvm_shutdown. 
Pass info objects are initialized by static ctors, so deleting them at
llvm_shutdown time prevents resurrection from working.

llvm-svn: 36292
 2007-04-21 00:12:18 +00:00
Chris Lattner af332ee449 Fix regressions introduced by my previous patch: opt calls verifier in a 
way that the "Mod" ivar was not getting set.

llvm-svn: 36291
 2007-04-20 23:59:29 +00:00
Lauro Ramos Venancio 94314be0e0 Allow the lowering of ISD::GLOBAL_OFFSET_TABLE. 
llvm-svn: 36290
 2007-04-20 23:02:39 +00:00
Chris Lattner 7786713181 avoid mutating a global in an accessor 
llvm-svn: 36289
 2007-04-20 22:57:20 +00:00
Chris Lattner 1e999c4164 fit in 80 cols 
llvm-svn: 36288
 2007-04-20 22:40:40 +00:00
Jeff Cohen 5959f42498 Comment out usage of write() for now. 
llvm-svn: 36287
 2007-04-20 22:40:10 +00:00
Chris Lattner 6a309848c1 rename JIT::state -> JIT::jitstate to avoid shadowing ExecutionEngine::state 
llvm-svn: 36286
 2007-04-20 22:40:05 +00:00
Chris Lattner d9d3a4bbd6 Fix a problem where primitive types lose their name after llvm_shutdown is called. 
This also reduces the amount of work done at static construction time.

llvm-svn: 36285
 2007-04-20 22:33:47 +00:00
Chris Lattner 4ff0452265 catch a case that was biting jeffc 
llvm-svn: 36284
 2007-04-20 21:48:08 +00:00
Lauro Ramos Venancio 2518889872 Implement "general dynamic", "initial exec" and "local exec" TLS models for 
X86 32 bits.

llvm-svn: 36283
 2007-04-20 21:38:10 +00:00
Evan Cheng e656d093a5 Specify S registers as D registers' sub-registers. 
llvm-svn: 36280
 2007-04-20 21:20:10 +00:00
Evan Cheng 06a164c6bc Specify sub-register relations. e.g. RAX: [EAX], EAX: [AX], AX: [AL,AH]. 
llvm-svn: 36279
 2007-04-20 21:15:21 +00:00
Evan Cheng ac9fdde7f4 Add sub-registers sets. 
llvm-svn: 36278
 2007-04-20 21:13:46 +00:00
Chris Lattner 3d3f22766a add a crazy idea 
llvm-svn: 36273
 2007-04-20 20:18:43 +00:00
Devang Patel 83a3adcc3f Avoid recursion. 
llvm-svn: 36272
 2007-04-20 20:04:37 +00:00
Owen Anderson 2da606c757 Move more passes to using ETForest instead of DominatorTree. 
llvm-svn: 36271
 2007-04-20 06:27:13 +00:00
Jeff Cohen 6c673ac01c Make Microsoft assembler and linker happy. 
llvm-svn: 36265
 2007-04-20 00:33:54 +00:00
Chris Lattner 25e62eb63b Fix a message, patch by Christopher Lamb. 
llvm-svn: 36264
 2007-04-19 18:42:38 +00:00
Lauro Ramos Venancio 42cd7253b1 Fix a bug in getFrameRegister. 
Reported by Raul Herbster.

llvm-svn: 36262
 2007-04-19 14:09:38 +00:00
Zhou Sheng aafe4e216e Make use of ConstantInt::isZero instead of ConstantInt::isNullValue. 
llvm-svn: 36261
 2007-04-19 05:39:12 +00:00
Zhou Sheng 82fcf3cb5f Make the operations of APInt variables more efficient. 
llvm-svn: 36260
 2007-04-19 05:35:00 +00:00
Evan Cheng db9b65d67a Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap. 
llvm-svn: 36258
 2007-04-18 22:39:00 +00:00
Dan Gohman 29845cd40d Fix the spelling of the prefetchnta instruction. 
llvm-svn: 36256
 2007-04-18 14:09:14 +00:00
Owen Anderson 9421f03959 Revert changes that caused breakage. 
llvm-svn: 36255
 2007-04-18 06:46:57 +00:00
Owen Anderson 9a6091dec1 Switch more uses of DominatorTree over to ETForest. 
llvm-svn: 36254
 2007-04-18 05:43:13 +00:00
Owen Anderson 550e8db9c7 Use ETForest instead of DominatorTree. 
llvm-svn: 36252
 2007-04-18 05:25:43 +00:00
Evan Cheng 4c53d321aa VarInfo::UsedBlocks is no longer used. Remove. 
llvm-svn: 36250
 2007-04-18 05:04:38 +00:00
Owen Anderson fc40d446c9 Use ETForest instead of DominatorTree. 
llvm-svn: 36249
 2007-04-18 04:55:33 +00:00
Owen Anderson 08293fd6d1 Use new ETForest accessor. 
llvm-svn: 36248
 2007-04-18 04:46:35 +00:00
Owen Anderson f38f2f2394 Use ETForest instead of DominatorTree. 
llvm-svn: 36247
 2007-04-18 04:39:32 +00:00
Chris Lattner f03c90bee6 allow SRL to simplify its operands, as it doesn't demand all bits as input. 
llvm-svn: 36245
 2007-04-18 03:06:49 +00:00
Chris Lattner bf14f20632 When replacing a node in SimplifyDemandedBits, if the old node used any 
single-use nodes, they will be dead soon.  Make sure to remove them before
processing other nodes.  This implements CodeGen/X86/shl_elim.ll

llvm-svn: 36244
 2007-04-18 03:05:22 +00:00
Chris Lattner 15c1b820cc fix a pasto 
llvm-svn: 36242
 2007-04-18 03:01:40 +00:00
Evan Cheng b408e8f11d Don't populate TryAgainList when coalescing only physical registers with virtual registers. 
llvm-svn: 36240
 2007-04-18 02:30:19 +00:00
Devang Patel 883ff07672 Cache DT[*SI] lookup. 
llvm-svn: 36239
 2007-04-18 01:19:55 +00:00
Chris Lattner 82738fe254 don't access argument list of prototypes 
llvm-svn: 36238
 2007-04-18 00:57:22 +00:00
Devang Patel 5976db0103 Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047971.html

llvm-svn: 36236
 2007-04-18 00:53:01 +00:00
Evan Cheng a5a0c7c909 Increment use count of new virtuals created during PHI elimination. 
llvm-svn: 36233
 2007-04-18 00:36:11 +00:00
Chris Lattner 135a077c93 Be more careful when inserting reused instructions. This fixes CodeGen/Generic/2007-04-17-lsr-crash.ll 
llvm-svn: 36231
 2007-04-17 23:43:50 +00:00
Evan Cheng 5118226c6c Oops. Didn't mean to check in a quick hack. 
llvm-svn: 36227
 2007-04-17 23:33:39 +00:00
Chris Lattner 4aff52bf3d Fix a bug in my previous patch, grabbing the shift amount width from the 
wrong operand.

llvm-svn: 36223
 2007-04-17 22:53:02 +00:00
Chris Lattner 598bc0d9a3 dag combiner just got better at pruning bits. This fixes CodeGen/ARM/rev.ll 
llvm-svn: 36222
 2007-04-17 22:39:58 +00:00
Chris Lattner 9a861a8550 Fold (x << c1)>> c2 into a single shift if the bits shifted out aren't used. 
This compiles:
int baz(long long a) { return (short)(((int)(a >>24)) >> 9); }

into:
_baz:
        srwi r2, r3, 1
        extsh r3, r2
        blr

on PPC, instead of:
_baz:
        slwi r2, r3, 8
        srwi r2, r2, 9
        extsh r3, r2
        blr

GCC produces:
_baz:
        srwi r10,r4,24
        insrwi r10,r3,24,0
        srawi r9,r3,24
        srawi r3,r10,9
        extsh r3,r3
        blr

This implements CodeGen/PowerPC/shl_elim.ll

llvm-svn: 36221
 2007-04-17 21:14:16 +00:00
Evan Cheng b881bdabd9 Copy coalescing change to prevent a physical register from being pin to a 
long live interval that has low usage density.
1. Change order of coalescing to join physical registers with virtual
   registers first before virtual register intervals become too long.
2. Check size and usage density to determine if it's worthwhile to join.
3. If joining is aborted, assign virtual register live interval allocation
   preference field to the physical register.
4. Register allocator should try to allocate to the preferred register
   first (if available) to create identify moves that can be eliminated.

llvm-svn: 36218
 2007-04-17 20:32:26 +00:00
Evan Cheng 57b5214d59 Add a register allocation preference field; add a method to compute size of a live interval. 
llvm-svn: 36216
 2007-04-17 20:25:11 +00:00
Evan Cheng 2f45bf31c5 Change getAllocatableSet() so it returns allocatable registers for a specific register class. 
llvm-svn: 36215
 2007-04-17 20:23:34 +00:00
Evan Cheng 8387cf1100 Keep track of number of uses within the function per virtual register. 
llvm-svn: 36214
 2007-04-17 20:22:11 +00:00
Anton Korobeynikov 9b91d98a30 Add comment 
llvm-svn: 36213
 2007-04-17 19:34:00 +00:00
Chris Lattner 9ad5915559 SIGN_EXTEND_INREG does not demand its top bits. Give SimplifyDemandedBits 
a chance to hack on it.  This compiles:

int baz(long long a) { return (short)(((int)(a >>24)) >> 9); }

into:
_baz:
        slwi r2, r3, 8
        srwi r2, r2, 9
        extsh r3, r2
        blr

instead of:

_baz:
        srwi r2, r4, 24
        rlwimi r2, r3, 8, 0, 23
        srwi r2, r2, 9
        extsh r3, r2
        blr

This implements CodeGen/PowerPC/sign_ext_inreg1.ll

llvm-svn: 36212
 2007-04-17 19:03:21 +00:00
Dan Gohman 2ce1116b33 Spell doFinalization right, so that it is a proper virtual override and 
gets called.

llvm-svn: 36208
 2007-04-17 18:21:36 +00:00
Chris Lattner 233f97ac6a remove use of BasicBlock::getNext 
llvm-svn: 36205
 2007-04-17 18:09:47 +00:00
Chris Lattner 2509d7547d add a note 
llvm-svn: 36203
 2007-04-17 18:03:00 +00:00
Chris Lattner 24e2d9ca03 remove use of BasicBlock::getNext 
llvm-svn: 36202
 2007-04-17 17:54:12 +00:00
Chris Lattner 672db8eab5 Remove use of Instruction::getNext 
llvm-svn: 36201
 2007-04-17 17:52:45 +00:00
Chris Lattner cd9bda71a0 eliminate use of Instruction::getNext() 
llvm-svn: 36200
 2007-04-17 17:51:03 +00:00
Chris Lattner 77a3edcb92 remove use of Instruction::getNext 
llvm-svn: 36199
 2007-04-17 17:47:54 +00:00
Chris Lattner d9b7511928 eliminate use of Instruction::getPrev(). Patch by Gabor Greif in 2005. 
llvm-svn: 36198
 2007-04-17 17:38:28 +00:00
Chris Lattner da1ed8de79 eliminate a use of Instruction::getPrev(), patch by Gabor Greif in 2005. 
llvm-svn: 36197
 2007-04-17 17:36:12 +00:00
Chris Lattner ff0598de75 rename X86FunctionInfo to X86MachineFunctionInfo to match the header file 
it is defined in.

llvm-svn: 36196
 2007-04-17 17:21:52 +00:00
Anton Korobeynikov 8b7aab009e Implemented correct stack probing on mingw/cygwin for dynamic alloca's. 
Also, fixed static case in presence of eax livin. This fixes PR331

PS: Why don't we still have push/pop instructions? :)
llvm-svn: 36195
 2007-04-17 09:20:00 +00:00
Chris Lattner 3c2ff10b93 merge several fields in GlobalValue to use the same word, move CallingConv 
field into SubclassData in Value.  This shrinks GlobalVAlue from 48->40
bytes, Function from 88->76, and GlobalVariable from 76->68.  This trims
4640 bytes off my testcase, reading a bc file without materializing any
functions.

llvm-svn: 36192
 2007-04-17 04:31:29 +00:00
Andrew Lenharth 2077814c91 Use this nifty Constraints thing and fix the inverted conditional moves 
llvm-svn: 36191
 2007-04-17 04:07:59 +00:00
Chris Lattner 422cfcdcb3 The (negative) offset from a SymbolTableListTraits-using ilist to its container 
object is always constant.  As such, evaluate it at compile time instead of storing
it as an ivar in SymbolTableListTraits.  This shrinks every SymbolTableListTraits
ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes,
and Module from 60->52 bytes.

llvm-svn: 36189
 2007-04-17 04:04:14 +00:00
Chris Lattner b47aa543bb Refactor SymbolTableListTraits to only have a single pointer in it, instead 
of two.  This shrinkifies Function by 8 bytes (104->96) and Module by 8
bytes (68->60).  On a testcase of mine, this reduces the memory used to
read a module header from 565680b to 561024, a little over 4K.

llvm-svn: 36188
 2007-04-17 03:26:42 +00:00
Chris Lattner 62a8cbe594 SSE4 is apparently public now. 
llvm-svn: 36185
 2007-04-17 00:02:37 +00:00
Reid Spencer d484ca6428 Make long line fit in 80 cols. 
llvm-svn: 36183
 2007-04-16 23:32:28 +00:00
Devang Patel abdff3fecd Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html

llvm-svn: 36182
 2007-04-16 23:03:45 +00:00