Chris Lattner bad294615e Enhance MemDep: When alias analysis returns a partial alias result, ... return it as a clobber. This allows GVN to do smart things. Enhance GVN to be smart about the case when a small load is clobbered by a larger overlapping load. In this case, forward the value. This allows us to compile stuff like this: int test(void *P) { int tmp = *(unsigned int*)P; return tmp+*((unsigned char*)P+1); } into: _test: ## @test movl (%rdi), %ecx movzbl %ch, %eax addl %ecx, %eax ret which has one load. We already handled the case where the smaller load was from a must-aliased base pointer. llvm-svn: 130180		2011-04-26 01:21:15 +00:00
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AliasAnalysis.h	Remove unused STL header includes.	2011-04-23 19:53:52 +00:00
AliasSetTracker.h	PR9604; try to deal with RAUW updates correctly in the AST. I'm not convinced	2011-04-09 06:55:46 +00:00
CallGraph.h	Add spliceFunction to the CallGraph interface. This allows users to efficiently	2011-01-03 03:19:35 +00:00
CaptureTracking.h
CFGPrinter.h	Don't include Operator.h from InstrTypes.h.	2011-04-11 09:35:34 +00:00
CodeMetrics.h	remove the partial specialization pass. It is unmaintained and has bugs.	2011-01-16 00:27:10 +00:00
ConstantFolding.h	Clarify that constant folding of instructions applies when all operands	2010-11-23 10:16:18 +00:00
ConstantsScanner.h
DebugInfo.h	Let front-end tie subprogram declaration with subprogram definition directly.	2011-04-22 23:10:17 +00:00
DIBuilder.h	PR9214: Convert the DIBuilder API to use ArrayRef.	2011-04-24 10:11:03 +00:00
DominanceFrontier.h	There is no point in verifying an analysis that is never updated.	2011-01-18 05:44:04 +00:00
DominatorInternals.h	Convert a std::vector to a SmallVector for another 5.4% speedup on domtree.	2011-01-23 06:54:22 +00:00
Dominators.h	In the simpler version of the link-eval data structure that we use in dominator	2011-01-23 06:16:06 +00:00
DomPrinter.h
DOTGraphTraitsPass.h
FindUsedTypes.h
InlineCost.h	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
InstructionSimplify.h	Teach instsimplify some tricks about exact/nuw/nsw shifts.	2011-02-09 17:15:04 +00:00
Interval.h
IntervalIterator.h
IntervalPartition.h
IVUsers.h	Avoid creating canonical induction variables for non-native types.	2011-03-18 16:50:32 +00:00
LazyValueInfo.h
LibCallAliasAnalysis.h
LibCallSemantics.h
Lint.h	Remove unused STL header includes.	2011-04-23 19:53:52 +00:00
Loads.h
LoopDependenceAnalysis.h
LoopInfo.h	split dom frontier handling stuff out to its own DominanceFrontier header,	2011-01-02 22:09:33 +00:00
LoopPass.h
MemoryBuiltins.h	clean up handling of 'free', detangling it from everything else.	2010-11-30 01:28:33 +00:00
MemoryDependenceAnalysis.h	Enhance MemDep: When alias analysis returns a partial alias result,	2011-04-26 01:21:15 +00:00
Passes.h	Delete the LiveValues pass. I won't get get back to the project it	2011-02-28 19:37:59 +00:00
PathNumbering.h	Implementation of path profiling.	2011-01-29 01:09:53 +00:00
PathProfileInfo.h	Remove unused STL header includes.	2011-04-23 19:53:52 +00:00
PHITransAddr.h
PostDominators.h	remove postdom frontiers, because it is dead. Forward dom frontiers are	2011-04-05 21:57:17 +00:00
ProfileInfo.h
ProfileInfoLoader.h
ProfileInfoTypes.h	This is #included by .c files. Remove C++-style comments.	2011-01-29 21:54:26 +00:00
RegionInfo.h	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
RegionIterator.h	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
RegionPass.h	Fix a ton of comment typos found by codespell. Patch by	2011-04-15 05:18:47 +00:00
RegionPrinter.h
ScalarEvolution.h	Don't include Operator.h from InstrTypes.h.	2011-04-11 09:35:34 +00:00
ScalarEvolutionExpander.h	Introduce memoization for ScalarEvolution dominates and properlyDominates	2010-11-18 00:34:22 +00:00
ScalarEvolutionExpressions.h	Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap	2011-03-14 16:50:06 +00:00
ScalarEvolutionNormalization.h
SparsePropagation.h
Trace.h
ValueTracking.h	According to my auto-simplifier the most common missed simplifications in	2011-01-25 09:38:29 +00:00
Verifier.h