diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/SimplifyLibCalls.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp index fed239eae3..c199f301a9 100644 --- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -733,8 +733,10 @@ struct VISIBILITY_HIDDEN StrToOpt : public LibCallOptimization { return 0; Value *EndPtr = CI->getOperand(2); - if (isa<ConstantPointerNull>(EndPtr)) + if (isa<ConstantPointerNull>(EndPtr)) { + CI->setOnlyReadsMemory(); CI->addAttribute(1, Attribute::NoCapture); + } return 0; } |