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Author SHA1 Message Date
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
Devang Patel
f50b6147ad Use single interface, using twine, to get named metadata. 
getNamedMetadata().

llvm-svn: 106518
 2010-06-22 01:19:38 +00:00
Evan Cheng
a1ebf91a39 Tail merging pass shall not break up IT blocks. rdar://8115404 
llvm-svn: 106517
 2010-06-22 01:18:16 +00:00
Devang Patel
38d9ee4e35 Discard special LLVM prefix from linkage name. 
llvm-svn: 106516
 2010-06-22 01:06:05 +00:00
Devang Patel
dee41b010a Do not rely on Twine temporaries to survive. 
llvm-svn: 106515
 2010-06-22 01:01:58 +00:00
Chris Lattner
3de7445da3 make sure to initialize indent_level 
llvm-svn: 106513
 2010-06-22 00:40:26 +00:00
Dan Gohman
ac0b4b5352 Fix the new load-unfolding code to update LiveVariable's dead flags, 
in addition to the kill flags.

llvm-svn: 106512
 2010-06-22 00:32:04 +00:00
Bob Wilson
6a07aa9ae8 Include named metadata when cloning a module. 
llvm-svn: 106508
 2010-06-22 00:11:03 +00:00
Eric Christopher
eb35756a31 Fix typo. 
llvm-svn: 106505
 2010-06-21 23:49:08 +00:00
Chris Lattner
6be03758e4 add some support for blockaddress. This isn't really enough to be useful, 
but it will cover uses of blockaddress that are actually in a function.

llvm-svn: 106502
 2010-06-21 23:19:36 +00:00
Chris Lattner
1d76d7e9b2 eliminate a mutable global variable, use raw_ostream::indent instead of 
rolling our own.

llvm-svn: 106501
 2010-06-21 23:14:47 +00:00
Chris Lattner
580470b914 un-indent a huge amount of code out of an anonymous namespace. 
llvm-svn: 106500
 2010-06-21 23:12:56 +00:00
Bruno Cardoso Lopes
d4d53fdb7f revert r106482 
llvm-svn: 106499
 2010-06-21 22:59:03 +00:00
Chris Lattner
c0d70f4edf fix several bugs in the tutorial, patch by Kevin Kelley! 
llvm-svn: 106498
 2010-06-21 22:51:14 +00:00
Dan Gohman
bcc040be1b Teach two-address lowering how to unfold a load to open up commuting 
opportunities. For example, this lets it emit this:

   movq (%rax), %rcx
   addq %rdx, %rcx

instead of this:

   movq %rdx, %rcx
   addq (%rax), %rcx

in the case where %rdx has subsequent uses. It's the same number
of instructions, and usually the same encoding size on x86, but
it appears faster, and in general, it may allow better scheduling
for the load.

llvm-svn: 106493
 2010-06-21 22:17:20 +00:00
Bruno Cardoso Lopes
33256723a7 change parameter name to avoid confusion with global definition 
llvm-svn: 106486
 2010-06-21 21:28:07 +00:00
Bob Wilson
ef565a2ffd sign_extend_inreg needs to be expanded for pre-v6 Thumb as well as ARM. 
Radar 8104310.

llvm-svn: 106484
 2010-06-21 21:27:34 +00:00
Jim Grosbach
bc31f7a24b LEApcrelJT shouldn't be marked as neverHasSideEffects, as we don't want it 
being moved around away from the jump table it references. rdar://8104340

llvm-svn: 106483
 2010-06-21 21:27:27 +00:00
Bruno Cardoso Lopes
40debaf4b8 Add unpack and interleave AVX instructions, encoding tests cooming soon 
llvm-svn: 106482
 2010-06-21 21:21:48 +00:00
Evan Cheng
167a8655c7 Fix PR7421: bug in kill transferring logic. It was ignoring loads / stores which have already been processed. 
llvm-svn: 106481
 2010-06-21 21:21:14 +00:00