commit 89766e5b1de84564a25648dab647119999888a7e
author Benjamin Kramer <benny.kra@googlemail.com> Sat Nov 28 21:43:12 2015 +0000
committer Benjamin Kramer <benny.kra@googlemail.com> Sat Nov 28 21:43:12 2015 +0000
tree a1bdf3d9e94102f76c7f5dd03ed3fdb7c474b78d
parent 4c5ab52a540f3ed1436d9ff2c7a24551b969102a

[SimplifyLibCalls] Fix inverted condition that lead to an uninitialized memory read below.

Found by msan!

llvm-svn: 254238

llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 67e1697..8389e39 100644
--- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -1454,8 +1454,8 @@
 
   Function *Callee = CI->getCalledFunction();
   LibFunc::Func Func;
-  if (Callee && (!TLI->getLibFunc(Callee->getName(), Func) || !TLI->has(Func) ||
-                 !isTrigLibCall(CI)))
+  if (!Callee || !TLI->getLibFunc(Callee->getName(), Func) || !TLI->has(Func) ||
+      !isTrigLibCall(CI))
     return;
 
   if (IsFloat) {