From d3af7cc9d903bf272e3c318e1c0cb40c3001714b Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Sat, 28 Nov 2015 21:43:12 +0000 Subject: [PATCH] [SimplifyLibCalls] Fix inverted condition that lead to an uninitialized memory read below. Found by msan! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254238 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Utils/SimplifyLibCalls.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp index 67e1697c7da..8389e39f7af 100644 --- a/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -1454,8 +1454,8 @@ LibCallSimplifier::classifyArgUse(Value *Val, BasicBlock *BB, bool IsFloat, 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) { -- 2.34.1