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201d1e56bb
llvm-6502/test/Transforms
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Chris Lattner 201d1e56bb Teach basicaa that memset's modref set is at worst "mod" and never 
contains "ref".

Enhance DSE to use a modref query instead of a store-specific hack
to generalize the "ignore may-alias stores" optimization to handle
memset and memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 00:28:45 +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 Preserve debug info attached with call instruction while eliminating dead argument. 2010-04-30 20:23:54 +00:00
DeadStoreElimination Teach basicaa that memset's modref set is at worst "mod" and never 2010-11-30 00:28:45 +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 Transform (extractvalue (load P), ...) to (load (gep P, 0, ...)) if the load has no other uses, shrinking the load. 2010-11-29 21:56:20 +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 Avoid depending on LCSSA implicitly pulling in LoopSimplify. 2010-07-26 18:00:43 +00:00
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 Add an atomic lowering pass 2010-08-03 16:19:16 +00:00
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info. 2010-06-04 22:27:30 +00:00
MemCpyOpt Implement PR8644: forwarding a memcpy value to a byval, 2010-11-21 00:28:59 +00:00
MergeFunc Arrays and vectors with different numbers of elements are not equivalent. 2010-07-16 06:31:12 +00:00
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 fix some failures my callgraph dump format change broke. 2010-04-23 18:38:40 +00:00
Reassociate fix a nice subtle reassociate bug which would only occur 2010-03-05 07:18:54 +00:00
ScalarRepl Treat a call of function pointer like a load of the pointer when considering 2010-11-24 22:04:20 +00:00
SCCP fix PR7876: If ipsccp decides that a function's address is taken 2010-08-12 22:25:23 +00:00
SimplifyCFG Factor out Instruction::isSafeToSpeculativelyExecute's code for 2010-11-11 21:23:25 +00:00
SimplifyLibCalls Fix some broken CHECK lines. 2010-11-29 22:34:55 +00:00
Sink Make BasicAliasAnalysis a normal AliasAnalysis implementation which 2010-10-18 18:04:47 +00:00
SRETPromotion
StripSymbols DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE. 2010-08-25 18:52:02 +00:00
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