Chris Lattner cc10244d77 Fix PR8728, a miscompilation I recently introduced. When optimizing ... memcpy's like: memcpy(A, B) memcpy(A, C) we cannot delete the first memcpy as dead if A and C might be aliases. If so, we actually get: memcpy(A, B) memcpy(A, A) which is not correct to transform into: memcpy(A, A) This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks Jakub! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120974 91177308-0d34-0410-b5e6-96231b3b80d8		2010-12-06 01:48:06 +00:00
..
ADCE
ArgumentPromotion	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare	Add a test for CodeGenPrepare's ability to look through PHI nodes when performing	2010-11-19 22:34:53 +00:00
ConstantMerge	fix PR8144, a bug where constant merge would merge globals marked	2010-09-15 00:30:11 +00:00
ConstProp	Teach ConstantFoldInstruction() how to fold insertvalue and extractvalue.	2010-11-29 20:36:52 +00:00
CorrelatedValuePropagation	Update testcase since we're no longer doing the constant forwarding inline with correlated value propagation.	2010-10-29 21:18:23 +00:00
DeadArgElim
DeadStoreElimination	Fix PR8728, a miscompilation I recently introduced. When optimizing	2010-12-06 01:48:06 +00:00
FunctionAttrs	Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis	2010-11-10 01:02:18 +00:00
GlobalDCE
GlobalOpt	GlobalOpt: EvaluateFunction() must not evaluate stores to weak_odr globals.	2010-10-19 16:47:23 +00:00
GVN	Completely rework the datastructure GVN uses to represent the value number to leader mapping. Previously,	2010-11-18 18:32:40 +00:00
IndVarSimplify	Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.	2010-10-07 23:29:37 +00:00
Inline	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
InstCombine	remove a use of llvm-dis	2010-11-30 02:04:15 +00:00
Internalize
IPConstantProp	more test cleanup	2010-09-02 22:38:56 +00:00
JumpThreading	Fix PR8247: JumpThreading can cause a block to become unreachable while still having predecessor, if it is part of a self-loop.	2010-09-29 20:34:41 +00:00
LCSSA
LICM	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
LoopDeletion
LoopRotate	Teach loop rotate to hoist trivially invariant instructions	2010-09-06 01:10:22 +00:00
LoopSimplify	Fix LoopSimplify to notify ScalarEvolution when splitting a loop backedge	2010-09-04 02:42:48 +00:00
LoopStrengthReduce	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
LoopUnroll	Revert r113439, which relaxed the requirement that loops containing calls cannot be unrolled. After some discussion,	2010-09-09 20:02:23 +00:00
LoopUnswitch	Factor code for testing whether replacing one value with another	2010-11-18 19:59:41 +00:00
LowerAtomic
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
MemCpyOpt	fix a bozo bug I introduced in r119930, causing a miscompile of	2010-12-01 01:24:55 +00:00
MergeFunc
PartialSpecialize	Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.	2010-10-09 22:06:36 +00:00
PruneEH
Reassociate
ScalarRepl	Treat a call of function pointer like a load of the pointer when considering	2010-11-24 22:04:20 +00:00
SCCP
SimplifyCFG	Teach SimplifyCFG to turn	2010-12-05 18:29:03 +00:00
SimplifyLibCalls	Add a puts optimization that converts puts() to putchar('\n').	2010-11-30 06:19:18 +00:00
Sink	Make BasicAliasAnalysis a normal AliasAnalysis implementation which	2010-10-18 18:04:47 +00:00
SRETPromotion
StripSymbols
TailCallElim	merge two tests.	2010-08-31 18:44:03 +00:00
TailDup	The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!	2010-09-01 18:32:56 +00:00