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-rw-r--r--clang/lib/CodeGen/CGExprScalar.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp
index f3936873359..700b5374ad9 100644
--- a/clang/lib/CodeGen/CGExprScalar.cpp
+++ b/clang/lib/CodeGen/CGExprScalar.cpp
@@ -2714,7 +2714,8 @@ Value *ScalarExprEmitter::EmitShl(const BinOpInfo &Ops) {
RHS = Builder.CreateIntCast(RHS, Ops.LHS->getType(), false, "sh_prom");
bool SanitizeBase = CGF.SanOpts.has(SanitizerKind::ShiftBase) &&
- Ops.Ty->hasSignedIntegerRepresentation();
+ Ops.Ty->hasSignedIntegerRepresentation() &&
+ !CGF.getLangOpts().isSignedOverflowDefined();
bool SanitizeExponent = CGF.SanOpts.has(SanitizerKind::ShiftExponent);
// OpenCL 6.3j: shift values are effectively % word size of LHS.
if (CGF.getLangOpts().OpenCL)
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