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Author SHA1 Message Date
Owen Anderson
647ac93b7d Fix a test with malformed IR. Not sure why this didn't fail before. 
llvm-svn: 109422
 2010-07-26 18:44:56 +00:00
Evan Cheng
1566171daa ARM fastisel isn't ready. 
llvm-svn: 109421
 2010-07-26 18:32:55 +00:00
Owen Anderson
ecba91f744 One more test commit... 
llvm-svn: 109420
 2010-07-26 18:31:17 +00:00
Dan Gohman
9e0ae022d2 Fix SCEVExpander::visitAddRecExpr so that it remembers the induction variable 
it inserted rather than using LoopInfo::getCanonicalInductionVariable to
rediscover it, since that doesn't work on non-canonical loops. This fixes
infinite recurrsion on such loops; PR7562.

llvm-svn: 109419
 2010-07-26 18:28:14 +00:00
Dan Gohman
52e662a7f7 Handle Values with no value in getCopyFromRegs. 
llvm-svn: 109415
 2010-07-26 18:15:41 +00:00
Owen Anderson
cead3304a6 Hopefully the last test commit. 
llvm-svn: 109414
 2010-07-26 18:13:21 +00:00
Dan Gohman
23a6a1bdc5 Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus 
dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.

Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.

This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.

llvm-svn: 109413
 2010-07-26 18:11:16 +00:00
Dan Gohman
7d588b7dec Preserve ScalarEvolution in the loop unroller. 
llvm-svn: 109412
 2010-07-26 18:02:06 +00:00
Owen Anderson
bbc2017998 Another test commit. 
llvm-svn: 109411
 2010-07-26 18:00:59 +00:00
Dan Gohman
48bddf693c Avoid depending on LCSSA implicitly pulling in LoopSimplify. 
llvm-svn: 109410
 2010-07-26 18:00:43 +00:00
Owen Anderson
b74844aa94 Test commit for new post-commit hooks. 
llvm-svn: 109409
 2010-07-26 17:56:42 +00:00
Dan Gohman
e191a19b69 Fix (at least) quadratic worst-case complexity in DominanceFrontier::splitBlock: 
don't visit all blocks in the function, and don't iterate over the split blocks'
predecessor lists for each block visited.

Also, remove the special-case test for the entry block. Splitting the entry
block isn't common enough to make this worthwhile.

This fixes a major compile-time bottleneck which is exposed now that
LoopSimplify isn't being redundantly run both before and after
DominanceFrontier.

llvm-svn: 109408
 2010-07-26 17:55:15 +00:00
Eric Christopher
174cc190ef 80-col. 
llvm-svn: 109407
 2010-07-26 17:53:07 +00:00
Dan Gohman
c90f474e23 Avoid copying and recopying a std::set. 
llvm-svn: 109405
 2010-07-26 17:45:33 +00:00
Dan Gohman
8babd895c7 Exit a search loop when the search goal is found. 
llvm-svn: 109404
 2010-07-26 17:41:45 +00:00
Dan Gohman
014eec6389 Fix formatting. 
llvm-svn: 109403
 2010-07-26 17:39:33 +00:00
Dan Gohman
8f7e88352a A block dominates itself, by definition. 
llvm-svn: 109402
 2010-07-26 17:38:15 +00:00
Dan Gohman
32010a6c96 Use DominatorTree::properlyDominates instead of dominates with an 
explicit inequality check.

llvm-svn: 109401
 2010-07-26 17:37:36 +00:00
Dan Gohman
bed2730c5b A block dominates itself, by definition. 
llvm-svn: 109400
 2010-07-26 17:35:32 +00:00
Dan Gohman
0627594a67 Use DominatorTree::properlyDominates instead of dominates with an 
explicit inequality check.

llvm-svn: 109398
 2010-07-26 17:34:05 +00:00
Duncan Sands
0f0329ea35 Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess parameter) 
may be used uninitialized in the callers of HighRegPressure.

llvm-svn: 109393
 2010-07-26 07:54:17 +00:00
Douglas Gregor
8f3e666150 Fix format-specifier warning 
llvm-svn: 109391
 2010-07-26 03:55:44 +00:00
Michael J. Spencer
d061ee82ad MC: Fix whitespace error from last commit. 
A Visual C++ extension that removes trailing new lines? Seriously?

llvm-svn: 109390
 2010-07-26 03:01:28 +00:00
Michael J. Spencer
9d96c92bde MC: Add WinCOFFObjectWriter implementation. 
Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 109389
 2010-07-26 02:17:32 +00:00
Lang Hames
998b522009 Factored out a bit of common code to mark VNInfos for deletion. 
llvm-svn: 109388
 2010-07-26 01:49:41 +00:00
Rafael Espindola
3a92982732 Clone and restore the module being reduced in 
ReduceMiscompilingFunctions::TestFuncs. This makes the test functional
(i.e., no side effects).

Before we would end up using dead functions if a pass decided to remove them
(inline for example) and we would also keep broken functions and conclude that
that a single function was enough to reproduce the bug.

llvm-svn: 109387
 2010-07-26 00:07:51 +00:00
Benjamin Kramer
0f8f1bd5a1 Reduce string trashing. 
llvm-svn: 109386
 2010-07-25 23:18:32 +00:00
Nick Lewycky
848b4defa1 Don't pass -export-dynamic to the linker on Cygwin and MinGW. These platforms 
accept the flag and do nothing but warn about it, cleverly bypassing our
configure-based detection system. Patch by Takumi Nakamura!

llvm-svn: 109385
 2010-07-25 22:33:04 +00:00
Evan Cheng
94e820829a Add comments. 
llvm-svn: 109383
 2010-07-25 18:59:43 +00:00
Douglas Gregor
caa8768635 Remove extraneous semicolon 
llvm-svn: 109373
 2010-07-25 17:34:42 +00:00
Douglas Gregor
dc72ace097 Unbreak CMake build 
llvm-svn: 109372
 2010-07-25 17:10:14 +00:00
Bob Wilson
4f9b0d9fad Fix crashes when scheduling a CopyToReg node -- getMachineOpcode asserts on 
those.  Radar 8231572.

llvm-svn: 109367
 2010-07-25 05:34:27 +00:00
Eli Friedman
07a7e448b3 Revert r109361; it's impossible to write a call with an argument with an 
invalid type.

llvm-svn: 109365
 2010-07-24 23:06:59 +00:00
Rafael Espindola
0b77450ebf Revert unintended white space change. 
llvm-svn: 109364
 2010-07-24 23:05:45 +00:00
Rafael Espindola
f380957779 Fix a trivial use after free. 
llvm-svn: 109363
 2010-07-24 23:02:11 +00:00
Eli Friedman
cd361b852b Minor simplification. 
llvm-svn: 109362
 2010-07-24 23:00:59 +00:00
Eli Friedman
124f0f9120 Make the ll parser check that arguments have valid types. 
llvm-svn: 109361
 2010-07-24 23:00:26 +00:00
Eli Friedman
6769a5186d PR7704: A function is not allowed to return a function; make sure to enforce 
this consistently.

llvm-svn: 109360
 2010-07-24 22:58:04 +00:00
Anton Korobeynikov
7ae895e007 Hook in GlobalMerge pass 
llvm-svn: 109359
 2010-07-24 21:52:08 +00:00
Nick Lewycky
8cbc57da86 Revert this because we can't clone cyclic MDNodes which are creating during a 
build of llvm-gcc.

llvm-svn: 109355
 2010-07-24 20:54:02 +00:00
Anton Korobeynikov
2a0715eb1b Add hook to insert late LLVM=>LLVM passes just before isel 
llvm-svn: 109354
 2010-07-24 20:48:54 +00:00
Nick Lewycky
7094bd27bc Whether function-local or not, a MDNode may reference a Function in which case 
it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.

llvm-svn: 109353
 2010-07-24 19:43:25 +00:00
Chris Lattner
ae021d8590 add a new NullablePtr class which makes it more obvious in API 
that a pointer can be null, forcing clients to think about it.

llvm-svn: 109348
 2010-07-24 18:47:46 +00:00
Peter Collingbourne
48fc43e800 Document BUILD_EXAMPLES makefile variable 
llvm-svn: 109346
 2010-07-24 17:54:00 +00:00
Duncan Sands
5128cb3743 Clarify that if a new value handle is added while dropping value handles 
hanging off a value, then the dropping code will intentionally not drop
it too (since this is almost certainly a bug).

llvm-svn: 109337
 2010-07-24 12:09:22 +00:00
Bob Wilson
59114a12b8 Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectors 
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K
won't cause a compile time performance regression.

llvm-svn: 109330
 2010-07-24 06:01:53 +00:00
Devang Patel
df9f5bf991 Use current working directory when Dirname is empty. This only happens when absolute source file path is used on compiler command line. 
llvm-svn: 109302
 2010-07-24 00:53:22 +00:00
Evan Cheng
a0b74d8804 Add an ILP scheduler. This is a register pressure aware scheduler that's 
appropriate for targets without detailed instruction iterineries.
The scheduler schedules for increased instruction level parallelism in
low register pressure situation; it schedules to reduce register pressure
when the register pressure becomes high.

On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2
by 16%.

llvm-svn: 109300
 2010-07-24 00:39:05 +00:00
Bruno Cardoso Lopes
632295a03c Support x86 "eiz" and "riz" pseudo index registers in the assembler. 
llvm-svn: 109295
 2010-07-24 00:06:39 +00:00
Jim Grosbach
4b7545413d Use the appropriate register class for an i32 when adding ARM::LR to the 
function live in set. This will give us tGPR for Thumb1 and GPR otherwise,
so the copy will be spillable. rdar://8224931

llvm-svn: 109293
 2010-07-23 23:50:35 +00:00