[llvm] r176722 - Early exit from getAllocationData() and isFreeCall() for intrinsics.

[Michael Ilseman]

Author: milseman
Date: Fri Mar  8 15:15:00 2013
New Revision: 176722

URL: http://llvm.org/viewvc/llvm-project?rev=176722&view=rev
Log:
Early exit from getAllocationData() and isFreeCall() for intrinsics.

Modified:
    llvm/trunk/lib/Analysis/MemoryBuiltins.cpp

Modified: llvm/trunk/lib/Analysis/MemoryBuiltins.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/MemoryBuiltins.cpp?rev=176722&r1=176721&r2=176722&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/MemoryBuiltins.cpp (original)
+++ llvm/trunk/lib/Analysis/MemoryBuiltins.cpp Fri Mar  8 15:15:00 2013
@@ -88,6 +88,10 @@ static Function *getCalledFunction(const
 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(
 /// 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())