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| author | Owen Anderson <resistor@mac.com> | 2011-01-04 19:10:54 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2011-01-04 19:10:54 +0000 |
| commit | 680ac4ff4e9434a694d3f72c44f3f2d063a7cb15 (patch) | |
| tree | 87342c05e4e642bcd3ba52fe5ce8925c9c92718d /lib/Transforms/Scalar/GVN.cpp | |
| parent | c84e3c0c03a0dab7aea7047e7b8e38051542f7e4 (diff) | |
| download | external_llvm-680ac4ff4e9434a694d3f72c44f3f2d063a7cb15.zip external_llvm-680ac4ff4e9434a694d3f72c44f3f2d063a7cb15.tar.gz external_llvm-680ac4ff4e9434a694d3f72c44f3f2d063a7cb15.tar.bz2 | |
When removing a value from GVN's leaders list, don't drop the Next pointer in a corner case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122822 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/GVN.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index cf82ebc..c78c4c3 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -466,6 +466,7 @@ namespace { NumberTableEntry* Next = Curr->Next; Curr->Val = Next->Val; Curr->BB = Next->BB; + Curr->Next = Next->Next; } } } @@ -1693,7 +1694,7 @@ bool GVN::processInstruction(Instruction *I, return false; } - + uint32_t NextNum = VN.getNextUnusedValueNumber(); unsigned Num = VN.lookup_or_add(I); |