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Author SHA1 Message Date
Daniel Dunbar
be50ef88bd Revert r106263, "Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,"... it was causing both 'file' (with clang) and 176.gcc (with llvm-gcc) to be miscompiled. 
llvm-svn: 106634
 2010-06-23 17:09:26 +00:00
Jim Grosbach
ef4e0249a0 The generic DAG combiner can now fold atomic fences when needed, so switch 
to using that.

llvm-svn: 106633
 2010-06-23 16:25:07 +00:00
Jim Grosbach
414eb48a14 When using libcall expansions for the atomic intrinsics, the explicit 
MEMBARRIER fences aren't necessary for ARM. Tell the combiner to fold them
away.

llvm-svn: 106631
 2010-06-23 16:08:49 +00:00
Jim Grosbach
12afda541e Some targets don't require the fencing MEMBARRIER instructions surrounding 
atomic intrinsics, either because the use locking instructions for the
atomics, or because they perform the locking directly. Add support in the
DAG combiner to fold away the fences.

llvm-svn: 106630
 2010-06-23 16:07:42 +00:00
Jim Grosbach
395b0a671c remove trailing whitespace 
llvm-svn: 106628
 2010-06-23 15:49:18 +00:00
Jakob Stoklund Olesen
ac7e537231 Add a few VNInfo data structure checks. 
llvm-svn: 106627
 2010-06-23 15:34:36 +00:00
Gabor Greif
6c86715183 use ArgOperand accessors 
llvm-svn: 106626
 2010-06-23 13:56:57 +00:00
Gabor Greif
992ef6fa9c use ArgOperand accessors 
llvm-svn: 106623
 2010-06-23 13:09:06 +00:00
Gabor Greif
dedbd07ed6 use helper to neatly access arguments 
llvm-svn: 106622
 2010-06-23 08:45:32 +00:00
Eric Christopher
c6382036ef Update uses, defs, and comments for darwin tls patterns. 
llvm-svn: 106621
 2010-06-23 08:01:49 +00:00
Nick Lewycky
4d160cb75c Don't link against libm and libpthread which don't exist in BeOS/Haiku. Also, 
Haiku like Linux provides <regex.h>, so use it. Patch by Paul Davey!

llvm-svn: 106620
 2010-06-23 06:48:34 +00:00
Daniel Dunbar
e6ee7409b9 Revert r106066, "Create a more targeted fix for not sinking instructions into a range where it"... it causes bzip2 to be miscompiled by Clang. 
Conflicts:

	lib/CodeGen/MachineSink.cpp

llvm-svn: 106614
 2010-06-23 00:48:25 +00:00
Stuart Hastings
bf77774e2f Less incorrect handling of zero-length bitfields. Radars 7992077 and 8093043. 
llvm-svn: 106611
 2010-06-23 00:31:14 +00:00
Eric Christopher
0c4230b33c Get the addend correct for i386 pic. 
Thanks Daniel!

llvm-svn: 106608
 2010-06-22 23:51:47 +00:00
Bill Wendling
fb956a0e47 Generate DWARF information during Apple-style build. They'll be stripped out 
later on. But we need them saved in the symbols directory.

llvm-svn: 106604
 2010-06-22 23:44:15 +00:00
Dan Gohman
f44783ab4e Replace ScalarEvolution's private copy of getLoopPredecessor 
with LoopInfo's public copy.

llvm-svn: 106603
 2010-06-22 23:43:28 +00:00
Bruno Cardoso Lopes
db9027d95d Add AVX compare packed instructions 
llvm-svn: 106600
 2010-06-22 23:37:59 +00:00
Dan Gohman
c33529255a Loosen up this test so that it doesn't depend as much on register 
allocation details.

llvm-svn: 106599
 2010-06-22 23:32:47 +00:00
Devang Patel
1967a51efc Revert 106592 for now. It causes clang-selfhost build failure. 
llvm-svn: 106598
 2010-06-22 23:29:55 +00:00
Dan Gohman
2ac2a33a1b Fix OptimizeMax to handle an odd case where one of the max operands 
is another max which folds. This fixes PR7454.

llvm-svn: 106594
 2010-06-22 23:07:13 +00:00
Bruno Cardoso Lopes
424b206ad4 Reapply support for AVX unpack and interleave instructions, with 
testcases this time.

llvm-svn: 106593
 2010-06-22 23:02:38 +00:00
Devang Patel
a24bf5907c If a metadata operand is seeded in value map and the metadata should also be seeded in value map. This is not limited to function local metadata. 
Failure to seed metdata in such cases causes troubles when in a cloned module, metadata from a new module refers to values in old module. Usually this results in mysterious bugpoint crashes. For example,

 Checking to see if we can delete global inits: Unknown constant!
 UNREACHABLE executed at /d/g/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp:904!

llvm-svn: 106592
 2010-06-22 22:53:21 +00:00
Devang Patel
dca60347e5 While cloning a module, clone metadata attached with instructions. 
llvm-svn: 106591
 2010-06-22 22:50:42 +00:00
Bruno Cardoso Lopes
93ec8dcd01 Add AVX MOV{SS,SD}{rr,rm} instructions 
llvm-svn: 106588
 2010-06-22 22:38:56 +00:00
Bill Wendling
c29fd1120a Fix the formatting of the switch statement and add a missing break. 
llvm-svn: 106586
 2010-06-22 22:16:17 +00:00
Jakob Stoklund Olesen
39c915aaa1 Also convert SUBREG_TO_REG to a KILL when relevant, like the other subreg 
instructions.

This does not affect codegen much because SUBREG_TO_REG is only used by X86 and
X86 does not use the register scavenger, but it prevents verifier errors.

llvm-svn: 106583
 2010-06-22 22:11:07 +00:00
Bob Wilson
cb414cca8d Thumb1 functions using @llvm.returnaddress were not saving the incoming LR. 
Radar 8031193.

llvm-svn: 106582
 2010-06-22 22:04:24 +00:00
Eric Christopher
48c062d65b Move a 64-bit test to the 64-bit file. Fixes an llvm-mc assertion 
during test runs.

llvm-svn: 106577
 2010-06-22 21:11:51 +00:00
Eric Christopher
835fc55fd0 Look for and use a different darwin crash reporter library. 
llvm-svn: 106576
 2010-06-22 21:01:04 +00:00
Dale Johannesen
dd9d7b11da Add SSE so these actually pass on non-X86 hosts. 
llvm-svn: 106575
 2010-06-22 20:54:03 +00:00
Jim Grosbach
69e4d59ce5 fix typo 
llvm-svn: 106574
 2010-06-22 20:52:02 +00:00
Gabor Greif
3f6b94947f use high-level accessors 
llvm-svn: 106573
 2010-06-22 20:40:38 +00:00
Bruno Cardoso Lopes
a176972a1b Fix a subtle multiclass bug: when using class inheritance on 
a toplevel 'defm', make sure to properly resolve references.

llvm-svn: 106570
 2010-06-22 20:30:50 +00:00
Bill Wendling
1e7edfa27a Corresponding test changes for r106564. 
llvm-svn: 106569
 2010-06-22 20:30:14 +00:00
Gabor Greif
2de1a571e9 warmup ritual: use high-level argument accessors 
llvm-svn: 106563
 2010-06-22 19:46:37 +00:00
Mon P Wang
c0fb410ae3 Move v-binop-widen tests to X86 since they don't work on all platforms 
llvm-svn: 106562
 2010-06-22 19:40:50 +00:00
Devang Patel
eba73529a6 Clone named metadata while cloning a module. 
Reapply Bob's patch.

llvm-svn: 106560
 2010-06-22 18:52:38 +00:00
Bruno Cardoso Lopes
2cf78d18d5 Reorganize logical and arithmetic SSE 1 & 2 instructions 
llvm-svn: 106557
 2010-06-22 18:17:40 +00:00
Bruno Cardoso Lopes
22aca94946 Reorganize SSE instructions, making easier to see oportunities for refactoring 
llvm-svn: 106556
 2010-06-22 18:09:32 +00:00
Dan Gohman
2303159bba Move PHIElimination's SplitCriticalEdge for MachineBasicBlocks out 
into a utility routine, teach it how to update MachineLoopInfo, and
make use of it in MachineLICM to split critical edges on demand.

llvm-svn: 106555
 2010-06-22 17:25:57 +00:00
Jakob Stoklund Olesen
ddb09c5258 Remove the SimpleJoin optimization from SimpleRegisterCoalescing. 
Measurements show that it does not speed up coalescing, so there is no reason
the keep the added complexity around.

Also clean out some unused methods and static functions.

llvm-svn: 106548
 2010-06-22 16:13:57 +00:00
Dan Gohman
29b845f3b7 Split out the code for finding a unique loop predecessor from 
getLoopPreheader into a separate function, for clients which don't
require a proper preheader.

llvm-svn: 106543
 2010-06-22 15:25:42 +00:00
Dan Gohman
74d5144414 Use pre-increment instead of post-increment when the result is not used. 
llvm-svn: 106542
 2010-06-22 15:08:57 +00:00
Dan Gohman
5863f1e8c6 Add a comment explaining a non-obvious API. 
llvm-svn: 106539
 2010-06-22 13:57:08 +00:00
Dan Gohman
ff9e611537 Add an explicit keyword. 
llvm-svn: 106538
 2010-06-22 13:53:29 +00:00
Dan Gohman
a3bc6b13f7 Allow "exhaustive" trip count evaluation on phi nodes with all 
constant operands.

llvm-svn: 106537
 2010-06-22 13:15:46 +00:00
Devang Patel
981ff4464c Revert 106528. It is causing self host failures. 
llvm-svn: 106529
 2010-06-22 06:14:09 +00:00
Devang Patel
d5696fa05b Do not rely on DenseMap slot which can be easily invalidated when DenseMap grows. 
llvm-svn: 106528
 2010-06-22 05:16:56 +00:00
Bob Wilson
714eba185c Revert my change to clone named metadata. Buildbots are complaining. 
--- Reverse-merging r106508 into '.':
U    lib/Transforms/Utils/CloneModule.cpp

llvm-svn: 106521
 2010-06-22 02:08:51 +00:00
Dan Gohman
2075612492 When unfolding a load, avoid assuming which instruction that 
kill and dead flags will end up on.

llvm-svn: 106520
 2010-06-22 02:07:21 +00:00