From dea2358c684926e11dc550f536b4f21b18af9dfb Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 19 Aug 2009 00:11:12 +0000 Subject: Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden before performing optimizations based on constant string values. llvm-svn: 79384 --- llvm/lib/Analysis/ValueTracking.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'llvm/lib/Analysis') diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 604d10c68b9..3ab10c55d81 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -1061,7 +1061,8 @@ bool llvm::GetConstantStringInfo(Value *V, std::string &Str, uint64_t Offset, // variable that is a constant and is initialized. The referenced constant // initializer is the array that we'll use for optimization. GlobalVariable* GV = dyn_cast(V); - if (!GV || !GV->isConstant() || !GV->hasInitializer()) + if (!GV || !GV->isConstant() || !GV->hasInitializer() || + GV->mayBeOverridden()) return false; Constant *GlobalInit = GV->getInitializer(); -- cgit v1.2.3