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[MSSA] Fix a bug in MemorySSA's move ctor.

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Not a correctness issue, but it would be nice if we didn't have to
recompute our block numbering (worst-case) every time we move MSSA.

llvm-svn: 277652
This commit is contained in:
George Burgess IV 2016-08-03 21:07:52 +00:00
parent 2aadad7243
commit 363da6f589
1 changed files with 2 additions and 0 deletions
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llvm/lib/Transforms/Utils/MemorySSA.cpp
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@ -1236,6 +1236,8 @@ MemorySSA::MemorySSA(MemorySSA &&MSSA)
ValueToMemoryAccess(std::move(MSSA.ValueToMemoryAccess)),
PerBlockAccesses(std::move(MSSA.PerBlockAccesses)),
LiveOnEntryDef(std::move(MSSA.LiveOnEntryDef)),
BlockNumberingValid(std::move(MSSA.BlockNumberingValid)),
BlockNumbering(std::move(MSSA.BlockNumbering)),
Walker(std::move(MSSA.Walker)), NextID(MSSA.NextID) {
// Update the Walker MSSA pointer so it doesn't point to the moved-from MSSA
// object any more.