Chris Lattner e4412c1f0b implement an instcombine xform needed by clang's codegen ... on the example in PR4216. This doesn't trigger in the testsuite, so I'd really appreciate someone scrutinizing the logic for correctness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92458 91177308-0d34-0410-b5e6-96231b3b80d8		2010-01-04 06:03:59 +00:00
..
ABCD	Revert my previous patch to ABCD and fix things the right way. There are two problems addressed	2009-11-09 00:44:44 +00:00
ADCE	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
ArgumentPromotion	Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test	2009-11-03 15:29:06 +00:00
BlockPlacement	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
BranchFolding	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
CodeExtractor	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
CodeGenPrepare	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
ConstantMerge	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
ConstProp	Fix PR5551 by not ignoring the top level constantexpr when	2009-12-04 06:29:29 +00:00
DeadArgElim	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
DeadStoreElimination	Fix some CHECK lines which were ignored by accident.	2009-12-12 09:25:50 +00:00
FunctionAttrs	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
GlobalDCE	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
GlobalOpt	fix two bogus tests that the asmparser now rejects.	2009-12-30 05:54:51 +00:00
GVN	fix an overly conservative caching issue that caused memdep to	2009-12-19 21:29:22 +00:00
IndVarSimplify	Make getUniqueExitBlocks's precondition assert more precise, to	2009-12-11 20:05:23 +00:00
Inline	implement a nice little efficiency hack in the inliner. Since we're now	2009-11-12 07:56:08 +00:00
InstCombine	implement an instcombine xform needed by clang's codegen	2010-01-04 06:03:59 +00:00
Internalize	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
IPConstantProp	Fix a use of an invalidated iterator in the case where there are multiple	2009-11-23 16:13:39 +00:00
JumpThreading	fix PR5698	2009-12-06 17:17:23 +00:00
LCSSA	Trim a bunch of unneeded code from this testcase.	2009-11-10 01:33:08 +00:00
LICM	Add radar fixed in comment.	2009-12-14 19:07:25 +00:00
LoopDeletion	Make LoopDeletion check the maximum backedge taken count, rather than the	2009-10-23 17:10:01 +00:00
LoopIndexSplit	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
LoopRotate	fix PR5837 by having SSAUpdate reuse phi nodes for the	2009-12-21 07:16:11 +00:00
LoopSimplify	Make Loop::getLoopLatch() work on loops which don't have preheaders, as	2009-11-20 20:51:18 +00:00
LoopStrengthReduce	Generalize OptimizeLoopTermCond to optimize more loop terminating icmp to use postinc iv.	2009-11-17 18:10:11 +00:00
LoopUnroll	Teach getSmallConstantTripMultiple about Shl operators.	2009-11-20 01:09:34 +00:00
LoopUnswitch	Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to be bogus.	2009-11-25 05:38:41 +00:00
LowerInvoke	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
LowerSetJmp	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
LowerSwitch	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
Mem2Reg	fix a bug exposed by moving SRoA earlier which caused a crash building kc++	2009-11-02 04:37:17 +00:00
MemCpyOpt	Make opt default to not adding a target data string and update tests that depend on target data to supply it within the test	2009-11-03 15:29:06 +00:00
MergeFunc	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
PruneEH	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
Reassociate	When factoring multiply expressions across adds, factor both	2010-01-01 01:13:15 +00:00
ScalarRepl	Generalize SROA to allow the first index of a GEP to be non-zero. Add a	2009-12-22 06:57:14 +00:00
SCCP	fix a crash in SCCP handling extractvalue of an array, pointed out and	2009-11-10 22:02:09 +00:00
SimplifyCFG	fix two bogus tests that the asmparser now rejects.	2009-12-30 05:54:51 +00:00
SimplifyLibCalls	move an optimization for memcmp out of simplifylibcalls and into	2009-12-24 00:37:38 +00:00
SRETPromotion	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
SSI	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00
StripSymbols	Update test.	2009-09-09 02:41:50 +00:00
TailCallElim	Improve tail call elimination to handle the switch statement.	2009-11-07 21:10:15 +00:00
TailDup	Change tests from "opt %s" to "opt < %s" so that opt doesn't see the	2009-09-11 18:01:28 +00:00