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8312 Commits

Author SHA1 Message Date
Evan Cheng
2edd1efa46 Move if-conversion before post-regalloc scheduling so the predicated instruction get scheduled properly. 
llvm-svn: 84843
 2009-10-22 06:48:32 +00:00
Chris Lattner
ff24a8cd93 testcase for PR4678 & rdar://7309675 
llvm-svn: 84830
 2009-10-22 04:47:09 +00:00
Evan Cheng
8fdd1661fa Don't generate sbfx / ubfx with negative lsb field. Patch by David Conrad. 
llvm-svn: 84813
 2009-10-22 00:40:00 +00:00
Chris Lattner
7c507ae857 fix PR5262. 
llvm-svn: 84810
 2009-10-22 00:17:26 +00:00
Anton Korobeynikov
bbc637e96d Use special DAG-to-DAG preprocessing to allow mem-mem instructions to be selected. 
Yay for ASCII graphics!

llvm-svn: 84808
 2009-10-22 00:16:00 +00:00
Dan Gohman
2d8e5654a8 Revert the main portion of r31856. It was causing BranchFolding 
to break up CFG diamonds by banishing one of the blocks to the end of
the function, which is bad for code density and branch size.

This does pessimize MultiSource/Benchmarks/Ptrdist/yacr2, the
benchmark cited as the reason for the change, however I've examined
the code and it looks more like a case of gaming a particular
branch than of being generally applicable.

llvm-svn: 84803
 2009-10-22 00:03:58 +00:00
Chris Lattner
bf5a89d82b revert r84754, it isn't the right approach. Edwin, please propose 
patches for fixes like this instead of committing them directly.

llvm-svn: 84799
 2009-10-21 23:41:58 +00:00
Dale Johannesen
59fd73831e Adjust testcases for msasm -> alignstack. 
llvm-svn: 84796
 2009-10-21 23:29:12 +00:00
Bill Wendling
c1f8119933 XFAIL this test for PPC. 
llvm-svn: 84782
 2009-10-21 21:09:48 +00:00
Jim Grosbach
452de96b04 Improve handling of immediates by splitting 32-bit immediates into two 16-bit 
immediate operands when they will fit into the using instruction.

llvm-svn: 84778
 2009-10-21 20:44:34 +00:00
Anton Korobeynikov
23ea13afbb Add DAG printing for RMW stuff debugging 
llvm-svn: 84776
 2009-10-21 19:18:28 +00:00
Anton Korobeynikov
d233af8049 RMW preprocessing stuff was incorrect. Grab the stuff from x86 backend and disable some tests until it will be clever enough to handle them. 
llvm-svn: 84775
 2009-10-21 19:17:55 +00:00
Victor Hernandez
0996619220 Make changes to rev 84292 as requested by Chris Lattner. 
Most changes are cleanup, but there is 1 correctness fix:
I fixed InstCombine so that the icmp is removed only if the malloc call is removed (which requires explicit removal because the Worklist won't DCE any calls since they can have side-effects).

llvm-svn: 84772
 2009-10-21 19:11:40 +00:00
Torok Edwin
a8a12b7d98 Fix PR5262: when folding select into PHI, make sure all operands are available 
in the PHI's Basic Block. This uses a conservative approach, because we don't
have dominator info in instcombine.

llvm-svn: 84754
 2009-10-21 10:49:00 +00:00
Evan Cheng
275a09e55d Match more patterns to movt. 
llvm-svn: 84751
 2009-10-21 08:15:52 +00:00
Dan Gohman
c74da745a7 Revert r84658 and r84691. They were causing llvm-gcc bootstrap to fail. 
llvm-svn: 84727
 2009-10-21 01:44:44 +00:00
Bill Wendling
5736c06ae3 This is passing on Darwin PPC. 
llvm-svn: 84723
 2009-10-21 00:51:40 +00:00
Anton Korobeynikov
172b91c273 Add reg-imm tests 
llvm-svn: 84705
 2009-10-21 00:11:44 +00:00
Anton Korobeynikov
7b6fe9f251 Fix invalid for vector types fneg(bitconvert(x)) => bitconvert(x ^ sign) 
transform.

llvm-svn: 84683
 2009-10-20 21:37:45 +00:00
Chris Lattner
882034fdaf add a real testcase for PR4313 
llvm-svn: 84676
 2009-10-20 21:04:26 +00:00
Chris Lattner
0737ccf048 add a test similar to that needed for PR4313, but that doesn't 
fail without the patch.

llvm-svn: 84675
 2009-10-20 21:00:47 +00:00
Chris Lattner
ccbe8ab252 the date on this testcase is wrong, it is unreduced, and it passes without the fix for PR4313. 
llvm-svn: 84674
 2009-10-20 20:57:58 +00:00
Chris Lattner
f3be536c0a merge and filecheckize 
llvm-svn: 84672
 2009-10-20 20:39:43 +00:00
Chris Lattner
827cc8fa02 merge two tests and convert to filecheck. 
llvm-svn: 84671
 2009-10-20 20:33:46 +00:00
Chris Lattner
803539f022 alternate fix for PR5258 which avoids worklist problems, with reduced testcase. 
llvm-svn: 84667
 2009-10-20 20:27:49 +00:00
David Goodwin
048b80a70a Checkpoint more aggressive anti-dependency breaking for post-ra scheduler. 
llvm-svn: 84658
 2009-10-20 19:54:44 +00:00
Dan Gohman
e0ace5c4eb Make TranslateX86CC return COND_INVALID instead of aborting when it 
encounters an OEQ or UNE comparison, and update its callers to check
for this return status and recover. This fixes a problem resulting from
the LowerOperation hooks being called from LegalizeVectorOps, because
LegalizeVectorOps only lowers vectors, so OEQ and UNE comparisons may
still be at large. This fixes PR5092.

llvm-svn: 84640
 2009-10-20 16:22:37 +00:00
Torok Edwin
bdcd45a9d6 Fix PR5258, jump-threading creating invalid PHIs. 
When an incoming value for a PHI is updated, we must also updated all other
incoming values for the same BB to match, otherwise we create invalid PHIs.

llvm-svn: 84638
 2009-10-20 15:42:00 +00:00
Torok Edwin
3801e755cc Fix PR4313: IPSCCP was not setting the lattice value for the invoke instruction 
when the invoke had multiple return values: it set the lattice value only on the
extractvalue.
This caused the invoke's lattice value to remain the default (undefined), and
later propagated to extractvalue's operand, which incorrectly introduces
undefined behavior.

llvm-svn: 84637
 2009-10-20 15:15:09 +00:00
Dan Gohman
b1528d73d1 Re-apply r84295, with fixes to how the loop "top" and "bottom" blocks are 
tracked. Instead of trying to manually keep track of these locations
while doing complex modifications, just recompute them when they're needed.
This fixes a bug in which the TopMBB and BotMBB were not correctly updated,
leading to invalid transformations.

llvm-svn: 84598
 2009-10-20 04:50:37 +00:00
Evan Cheng
029a85b791 If the physical register being spilled does not have an interval, spill its sub-registers instead. 
llvm-svn: 84586
 2009-10-20 01:31:09 +00:00
Jim Grosbach
2fb5eb1264 Enable allocation of R3 in Thumb1 
llvm-svn: 84563
 2009-10-19 22:57:03 +00:00
Chris Lattner
b9bbaf7f4d convert to filecheck syntax and make a lot more aggressive. 
llvm-svn: 84517
 2009-10-19 18:27:56 +00:00
Anton Korobeynikov
26ed697cf2 Revert r84295, this unbreaks llvm-gcc bootstrap on x86-64/linux 
llvm-svn: 84516
 2009-10-19 18:21:09 +00:00
Chris Lattner
6fd5bc3ba0 rename test 
llvm-svn: 84515
 2009-10-19 18:18:07 +00:00
Dan Gohman
d2e75c9ae0 Fix SplitBlockPredecessors' LoopInfo updating code to handle the case 
where a loop's header is being split and it has predecessors which are not
contained by the most-nested loop which contains the loop.
This fixes PR5235.

llvm-svn: 84505
 2009-10-19 16:04:50 +00:00
Torok Edwin
e6df0e6397 Fix PR5247, "lock addq" pattern (and other atomics), it DOES modify EFLAGS. 
LLC was scheduling compares before the adds causing wrong branches to be taken
in programs, resulting in misoptimized code wherever atomic adds where used.

llvm-svn: 84485
 2009-10-19 11:00:58 +00:00
Chris Lattner
6174703743 eliminate md_on_instruction.ll, md_on_instruction2.ll is a superset of it. 
llvm-svn: 84464
 2009-10-19 05:34:14 +00:00
Daniel Dunbar
347b151bc2 Teach lit that the .c files in 'test/CodeGen/CellSPU/useful-harnesses' aren't tests. 
llvm-svn: 84460
 2009-10-19 03:53:55 +00:00
Nate Begeman
1308a36647 Add support for matching shuffle patterns with palignr. 
llvm-svn: 84459
 2009-10-19 02:17:23 +00:00
Evan Cheng
eb82c3743a Turn on post-alloc scheduling for x86. 
llvm-svn: 84431
 2009-10-18 19:57:27 +00:00
Chris Lattner
e7c0e7f1a9 remove a now-pointless regtest 
llvm-svn: 84409
 2009-10-18 05:20:17 +00:00
Chris Lattner
878fd28407 remove testcase for dead pass 
llvm-svn: 84406
 2009-10-18 05:03:41 +00:00
Chris Lattner
eebed04912 fix test 
llvm-svn: 84405
 2009-10-18 05:03:00 +00:00
Chris Lattner
8db424f027 tighten up test3, add test3a for the converse 
transform, which isn't happening yet.

llvm-svn: 84402
 2009-10-18 04:55:26 +00:00
Chris Lattner
aff491fab6 tighten test2, add a test that it doesn't get transformed in the invalid edge case. 
llvm-svn: 84401
 2009-10-18 04:50:18 +00:00
Nick Lewycky
671ca16583 Merge tests into modref.ll. Also add a test for r84174 at Chris' behest! 
llvm-svn: 84400
 2009-10-18 04:41:36 +00:00
Nick Lewycky
d21c892821 Add a couple new testcases. 
llvm-svn: 84385
 2009-10-18 00:42:07 +00:00
Chris Lattner
1ed26100a4 replace a useless test with a useful one 
llvm-svn: 84383
 2009-10-17 23:59:51 +00:00
Nick Lewycky
4f6c397742 Fix test/Bindings/Ocaml/vmcore.ml. When IRBuilder::CreateMalloc was removed, 
LLVMBuildMalloc was reimplemented but with the bug that it didn't insert the
resulting instruction.

llvm-svn: 84374
 2009-10-17 23:52:26 +00:00