diff options
Diffstat (limited to 'llvm/lib/Analysis/StackSafetyAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/StackSafetyAnalysis.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/StackSafetyAnalysis.cpp b/llvm/lib/Analysis/StackSafetyAnalysis.cpp index 10b9f14..f72197e 100644 --- a/llvm/lib/Analysis/StackSafetyAnalysis.cpp +++ b/llvm/lib/Analysis/StackSafetyAnalysis.cpp @@ -226,10 +226,10 @@ ConstantRange StackSafetyLocalAnalysis::offsetFrom(Value *Addr, Value *Base) { AllocaOffsetRewriter Rewriter(SE, Base); const SCEV *Expr = Rewriter.visit(SE.getSCEV(Addr)); - ConstantRange Offset = SE.getUnsignedRange(Expr).zextOrTrunc(PointerSize); - if (Offset.isEmptySet()) + ConstantRange Offset = SE.getSignedRange(Expr); + if (Offset.isEmptySet() || Offset.isFullSet() || Offset.isSignWrappedSet()) return UnknownRange; - return Offset; + return Offset.sextOrTrunc(PointerSize); } ConstantRange |