[SimplifyLibCalls] Fix -Wunused-result after D53342/r372091

llvm-svn: 372096
2019-09-17 09:56:55 +00:00 · 2019-09-17 09:56:55 +00:00 · 8351763709
parent 957b9cdd26
commit 8351763709
1 changed files with 2 additions and 1 deletions
--- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
@ -612,7 +612,8 @@ Value *LibCallSimplifier::optimizeStrNCpy(CallInst *CI, IRBuilder<> &B) {
    // strncpy(x, "", y) -> memset(align 1 x, '\0', y)
    CallInst *NewCI = B.CreateMemSet(Dst, B.getInt8('\0'), Size, 1);
    AttrBuilder ArgAttrs(CI->getAttributes().getParamAttributes(0));
-    NewCI->getAttributes().addParamAttributes(CI->getContext(), 0, ArgAttrs);
+    NewCI->setAttributes(NewCI->getAttributes().addParamAttributes(
+        CI->getContext(), 0, ArgAttrs));
    return Dst;
  }