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Early exit from getAllocationData() and isFreeCall() for intrinsics. 

llvm-svn: 176722
This commit is contained in:
Michael Ilseman 2013-03-08 21:15:00 +00:00
parent 5846239e16
commit 74ffc27d25
1 changed files with 5 additions and 1 deletions
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6
llvm/lib/Analysis/MemoryBuiltins.cpp
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@ -88,6 +88,10 @@ static Function *getCalledFunction(const Value *V, bool LookThroughBitCast) {
static const AllocFnsTy *getAllocationData(const Value *V, AllocType AllocTy,
const TargetLibraryInfo *TLI,
bool LookThroughBitCast = false) {
// Skip intrinsics
if (isa<IntrinsicInst>(V))
return 0;
Function *Callee = getCalledFunction(V, LookThroughBitCast);
if (!Callee)
return 0;
@ -300,7 +304,7 @@ const CallInst *llvm::extractCallocCall(const Value *I,
/// isFreeCall - Returns non-null if the value is a call to the builtin free()
const CallInst *llvm::isFreeCall(const Value *I, const TargetLibraryInfo *TLI) {
const CallInst *CI = dyn_cast<CallInst>(I);
if (!CI)
if (!CI || isa<IntrinsicInst>(CI))
return 0;
Function *Callee = CI->getCalledFunction();
if (Callee == 0 || !Callee->isDeclaration())