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| author | Dimitry Andric <dim@FreeBSD.org> | 2021-07-29 20:15:26 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2021-07-29 20:15:26 +0000 |
| commit | 344a3780b2e33f6ca763666c380202b18aab72a3 (patch) | |
| tree | f0b203ee6eb71d7fdd792373e3c81eb18d6934dd /llvm/lib/Analysis/StackSafetyAnalysis.cpp | |
| parent | b60736ec1405bb0a8dd40989f67ef4c93da068ab (diff) | |
vendor/llvm-project/llvmorg-13-init-16847-g88e66fa60ae5vendor/llvm-project/llvmorg-12.0.1-rc2-0-ge7dac564cd0evendor/llvm-project/llvmorg-12.0.1-0-gfed41342a82f
Diffstat (limited to 'llvm/lib/Analysis/StackSafetyAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/StackSafetyAnalysis.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/StackSafetyAnalysis.cpp b/llvm/lib/Analysis/StackSafetyAnalysis.cpp index 73096eb4baef..76f195fedf31 100644 --- a/llvm/lib/Analysis/StackSafetyAnalysis.cpp +++ b/llvm/lib/Analysis/StackSafetyAnalysis.cpp @@ -263,6 +263,8 @@ ConstantRange StackSafetyLocalAnalysis::offsetFrom(Value *Addr, Value *Base) { const SCEV *AddrExp = SE.getTruncateOrZeroExtend(SE.getSCEV(Addr), PtrTy); const SCEV *BaseExp = SE.getTruncateOrZeroExtend(SE.getSCEV(Base), PtrTy); const SCEV *Diff = SE.getMinusSCEV(AddrExp, BaseExp); + if (isa<SCEVCouldNotCompute>(Diff)) + return UnknownRange; ConstantRange Offset = SE.getSignedRange(Diff); if (isUnsafe(Offset)) |