Dan Gohman 01ecca20bf Teach getZeroExtendExpr and getSignExtendExpr to use trip-count ... information to simplify [sz]ext({a,+,b}) to {zext(a),+,[zs]ext(b)}, as appropriate. These functions and the trip count code each call into the other, so this requires careful handling to avoid infinite recursion. During the initial trip count computation, conservative SCEVs are used, which are subsequently discarded once the trip count is actually known. Among other benefits, this change lets LSR automatically eliminate some unnecessary zext-inreg and sext-inreg operation where the operand is an induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70241 91177308-0d34-0410-b5e6-96231b3b80d8		2009-04-27 20:16:15 +00:00
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IPA	Clear the cached cost when removing a function in	2009-03-19 18:03:56 +00:00
AliasAnalysis.cpp	Generalize some alias analysis logic from atomic	2009-02-14 10:56:35 +00:00
AliasAnalysisCounter.cpp
AliasAnalysisEvaluator.cpp	simplify logic and get rid of the assumption that operand 0 is the callee	2009-03-24 19:28:39 +00:00
AliasDebugger.cpp	Refactor my previous change to maintain the distinction between AliasAnalysis and BasicAliasAnalysis. This involves some wider changes because it	2009-02-05 23:36:27 +00:00
AliasSetTracker.cpp	getEntryFor() may invalidate DenseMap iterator.	2009-03-30 18:34:47 +00:00
Analysis.cpp
BasicAliasAnalysis.cpp	Generalize some alias analysis logic from atomic	2009-02-14 10:56:35 +00:00
CaptureTracking.cpp	BasicAliasAnalysis and FunctionAttrs were both	2009-01-18 12:19:30 +00:00
CFGPrinter.cpp
CMakeLists.txt	Fix the Win32 VS2008 build:	2009-03-19 23:26:52 +00:00
ConstantFolding.cpp	use higher level APIs.	2009-04-03 00:02:39 +00:00
DbgInfoPrinter.cpp	Oops...I committed too much.	2009-03-13 04:39:26 +00:00
DebugInfo.cpp	Add a method to check that the subprogram holds debug info for the given Function or not.	2009-04-15 00:06:07 +00:00
InstCount.cpp
Interval.cpp
IntervalPartition.cpp
LibCallAliasAnalysis.cpp
LibCallSemantics.cpp
LiveValues.cpp	Enhance LiveValues to work on PHI operands.	2009-03-23 15:49:37 +00:00
LoopInfo.cpp	Remove dead comments.	2008-12-18 09:01:18 +00:00
LoopPass.cpp	Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block.	2009-03-25 23:57:48 +00:00
LoopVR.cpp	More const qualifiers.	2009-04-18 17:57:20 +00:00
Makefile	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
MemoryDependenceAnalysis.cpp	now that you can put a PointerIntPair in a SmallPtrSet, remove some	2009-03-29 00:24:04 +00:00
PostDominators.cpp
ProfileInfo.cpp
ProfileInfoLoader.cpp	Tidy up #includes, deleting a bunch of unnecessary #includes.	2009-01-05 17:59:02 +00:00
ProfileInfoLoaderPass.cpp
ScalarEvolution.cpp	Teach getZeroExtendExpr and getSignExtendExpr to use trip-count	2009-04-27 20:16:15 +00:00
ScalarEvolutionExpander.cpp	Change SCEVExpander's expandCodeFor to provide more flexibility	2009-04-23 15:16:49 +00:00
SparsePropagation.cpp	Make Print callable from a pass's print method: add const qualifier. No	2009-03-11 20:50:17 +00:00
Trace.cpp
ValueTracking.cpp	Oops...I committed too much.	2009-03-13 04:39:26 +00:00