Hal Finkel 04fe990190 Improve BasicAA CS-CS queries ... BasicAA contains knowledge of certain intrinsics, such as memcpy and memset, and uses that information to form more-accurate answers to CallSite vs. Loc ModRef queries. Unfortunately, it did not use this information when answering CallSite vs. CallSite queries. Generically, when an intrinsic takes one or more pointers and the intrinsic is marked only to read/write from its arguments, the offset/size is unknown. As a result, the generic code that answers CallSite vs. CallSite (and CallSite vs. Loc) queries in AA uses UnknownSize when forming Locs from an intrinsic's arguments. While BasicAA's CallSite vs. Loc override could use more-accurate size information for some intrinsics, it did not do the same for CallSite vs. CallSite queries. This change refactors the intrinsic-specific logic in BasicAA into a generic AA query function: getArgLocation, which is overridden by BasicAA to supply the intrinsic-specific knowledge, and used by AA's generic implementation. This allows the intrinsic-specific knowledge to be used by both CallSite vs. Loc and CallSite vs. CallSite queries, and simplifies the BasicAA implementation. Currently, only one function, Mac's memset_pattern16, is handled by BasicAA (all the rest are intrinsics). As a side-effect of this refactoring, BasicAA's getModRefBehavior override now also returns OnlyAccessesArgumentPointees for this function (which is an improvement). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212572 91177308-0d34-0410-b5e6-96231b3b80d8		2014-07-08 23:16:49 +00:00
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AliasAnalysis.h	Improve BasicAA CS-CS queries	2014-07-08 23:16:49 +00:00
AliasSetTracker.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
BlockFrequencyInfo.h	blockfreq: Remove unnecessary template parameters	2014-04-11 23:21:02 +00:00
BlockFrequencyInfoImpl.h	Support: Move class ScaledNumber	2014-06-24 00:38:09 +00:00
BranchProbabilityInfo.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
CallGraph.h
CallGraphSCCPass.h
CallPrinter.h
CaptureTracking.h
CFG.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
CFGPrinter.h	Revert "Introduce a string_ostream string builder facilty"	2014-06-26 22:52:05 +00:00
CGSCCPassManager.h	[LCG] Normalize the post-order SCC iterator to just iterate over the SCC	2014-04-23 23:51:07 +00:00
CodeMetrics.h
ConstantFolding.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-14 00:51:57 +00:00
ConstantsScanner.h
DependenceAnalysis.h	remove constant terms	2014-05-27 22:41:45 +00:00
DominanceFrontier.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
DomPrinter.h
DOTGraphTraitsPass.h	raw_ostream: Forward declare OpenFlags and include FileSystem.h only where necessary.	2014-04-29 23:26:49 +00:00
FindUsedTypes.h
InlineCost.h
InstructionSimplify.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-14 00:51:57 +00:00
Interval.h
IntervalIterator.h
IntervalPartition.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
IVUsers.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
JumpInstrTableInfo.h	Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute.	2014-06-05 19:29:43 +00:00
LazyCallGraph.h	Fix typos	2014-05-15 01:52:21 +00:00
LazyValueInfo.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
LibCallAliasAnalysis.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
LibCallSemantics.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
Lint.h
Loads.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
LoopInfo.h	Add optimization remarks to the loop unroller and vectorizer.	2014-04-29 14:27:31 +00:00
LoopInfoImpl.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-14 00:51:57 +00:00
LoopIterator.h
LoopPass.h
MemoryBuiltins.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
MemoryDependenceAnalysis.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
Passes.h	Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute.	2014-06-05 19:29:43 +00:00
PHITransAddr.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
PostDominators.h
PtrUseVisitor.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
RegionInfo.h	DominanceInfo is strongly preferred over RegionInfo	2014-07-08 22:51:03 +00:00
RegionIterator.h
RegionPass.h
RegionPrinter.h
ScalarEvolution.h	remove constant terms	2014-05-27 22:41:45 +00:00
ScalarEvolutionExpander.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
ScalarEvolutionExpressions.h	remove BasePointer before delinearizing	2014-05-27 22:41:51 +00:00
ScalarEvolutionNormalization.h
SparsePropagation.h	[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.	2014-04-15 04:59:12 +00:00
TargetFolder.h
TargetTransformInfo.h	Add Support to Recognize and Vectorize NON SIMD instructions in SLPVectorizer.	2014-06-20 04:32:48 +00:00
Trace.h
ValueTracking.h	[ValueTracking] Extend range metadata to call/invoke	2014-06-19 16:50:16 +00:00