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| author | Vitaly Buka <vitalybuka@google.com> | 2017-10-17 18:33:15 +0000 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2017-10-17 18:33:15 +0000 |
| commit | 524c0a639dd86ffd97b96e5b71f04fa038c69792 (patch) | |
| tree | 0f2abe77fadf60cccc591ed0dd076b2af22229fc /llvm/lib/Transforms/Utils/SimplifyCFG.cpp | |
| parent | 654bbb3b0526f61882f212247864b1572ac339cd (diff) | |
| download | bcm5719-llvm-524c0a639dd86ffd97b96e5b71f04fa038c69792.tar.gz bcm5719-llvm-524c0a639dd86ffd97b96e5b71f04fa038c69792.zip | |
Fix signed overflow detected by ubsan
This overflow does not affect algorithm, so just suppress it.
llvm-svn: 316018
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyCFG.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyCFG.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp index 63bf68e4cee..e7388f63864 100644 --- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp @@ -5439,7 +5439,7 @@ static bool ReduceSwitchRange(SwitchInst *SI, IRBuilder<> &Builder, // First, transform the values such that they start at zero and ascend. int64_t Base = Values[0]; for (auto &V : Values) - V -= Base; + V -= (uint64_t)(Base); // Now we have signed numbers that have been shifted so that, given enough // precision, there are no negative values. Since the rest of the transform |
