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Add an optional list of blocks to avoid when looking for a path in isPotentiallyReachable.

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The leads to some ambiguous overloads, so update three callers.

Differential Revision: https://reviews.llvm.org/D60085


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@357447 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2019-04-02 01:05:48 +00:00
parent 35d264ee4b
commit d5c86e9e6d
6 changed files with 157 additions and 47 deletions
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lib/Analysis/BasicAliasAnalysis.cpp
+1 -1
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@@ -1906,7 +1906,7 @@ bool BasicAAResult::isValueEqualInPotentialCycles(const Value *V,
// the Values cannot come from different iterations of a potential cycle the
// phi nodes could be involved in.
for (auto *P : VisitedPhiBBs)
if (isPotentiallyReachable(&P->front(), Inst, DT, LI))
if (isPotentiallyReachable(&P->front(), Inst, nullptr, DT, LI))
return false;
return true;