Arnold Schwaighofer 2b475922e6 Optimistically analyse Phi cycles ...

Analyse Phis under the starting assumption that they are NoAlias. Recursively
look at their inputs.
If they MayAlias/MustAlias there must be an input that makes them so.

Addresses bug 14351.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169788 91177308-0d34-0410-b5e6-96231b3b80d8

2012-12-10 23:02:41 +00:00

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2003-02-26-AccessSizeTest.ll

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2003-03-04-GEPCrash.ll

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2003-04-22-GEPProblem.ll

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2003-04-25-GEPCrash.ll

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2003-05-21-GEP-Problem.ll

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2003-06-01-AliasCrash.ll

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2003-07-03-BasicAACrash.ll

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2003-09-19-LocalArgument.ll

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2003-11-04-SimpleCases.ll

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2003-12-11-ConstExprGEP.ll

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2004-07-28-MustAliasbug.ll

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2006-03-03-BadArraySubscript.ll

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2006-11-03-BasicAAVectorCrash.ll

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2007-01-13-BasePointerBadNoAlias.ll

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2007-08-01-NoAliasAndCalls.ll

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2007-08-01-NoAliasAndGEP.ll

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2007-08-05-GetOverloadedModRef.ll

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2007-10-24-ArgumentsGlobals.ll

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2007-11-05-SizeCrash.ll

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2007-12-08-OutOfBoundsCrash.ll

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2008-04-15-Byval.ll

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2008-06-02-GEPTailCrash.ll

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2008-11-23-NoaliasRet.ll

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2009-03-04-GEPNoalias.ll

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2009-10-13-AtomicModRef.ll

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2009-10-13-GEP-BaseNoAlias.ll

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2010-09-15-GEP-SignedArithmetic.ll

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aligned-overread.ll

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args-rets-allocas-loads.ll

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byval.ll

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cas.ll

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constant-over-index.ll

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dag.ll

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empty.ll

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featuretest.ll

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full-store-partial-alias.ll

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gcsetest.ll

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gep-alias.ll

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getmodrefinfo-cs-cs.ll

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global-size.ll

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intrinsics.ll

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lit.local.cfg

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memset_pattern.ll

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modref.ll

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must-and-partial.ll

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no-escape-call.ll

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noalias-geps.ll

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nocapture.ll

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phi-aa.ll

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phi-and-select.ll

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phi-spec-order.ll

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phi-speculation.ll

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pure-const-dce.ll

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store-promote.ll

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tailcall-modref.ll

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underlying-value.ll

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unreachable-block.ll

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