minor enhancement to llvm::isFreeCall API: return CallInst; no functional change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106686 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Analysis/MemoryBuiltins.h b/include/llvm/Analysis/MemoryBuiltins.h
index a7f42c9e37f2a85aa51f3ac9ad4b81dfaa1d159c..a4f916227b8b9bb3727f6096c633ce8ed9475460 100644 (file)
--- a/include/llvm/Analysis/MemoryBuiltins.h
+++ b/include/llvm/Analysis/MemoryBuiltins.h
@@ -72,8 +72,8 @@ Value *getMallocArraySize(CallInst *CI, const TargetData *TD,
 //  free Call Utility Functions.
 //
 
-/// isFreeCall - Returns true if the value is a call to the builtin free()
-bool isFreeCall(const Value *I);
+/// isFreeCall - Returns non-null if the value is a call to the builtin free()
+const CallInst *isFreeCall(const Value *I);
 
 } // End llvm namespace
 

diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp
index 8150bafdecf229dc8ace5243d3a075dba95a488a..1ab18ca054a2e913f74d288ae67ef637d796e3a7 100644 (file)
--- a/lib/Analysis/MemoryBuiltins.cpp
+++ b/lib/Analysis/MemoryBuiltins.cpp
@@ -183,25 +183,25 @@ Value *llvm::getMallocArraySize(CallInst *CI, const TargetData *TD,
 //  free Call Utility Functions.
 //
 
-/// isFreeCall - Returns true if the value is a call to the builtin free()
-bool llvm::isFreeCall(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 CallInst *CI = dyn_cast<CallInst>(I);
   if (!CI)
-    return false;
+    return 0;
   Function *Callee = CI->getCalledFunction();
   if (Callee == 0 || !Callee->isDeclaration() || Callee->getName() != "free")
-    return false;
+    return 0;
 
   // Check free prototype.
   // FIXME: workaround for PR5130, this will be obsolete when a nobuiltin 
   // attribute will exist.
   const FunctionType *FTy = Callee->getFunctionType();
   if (!FTy->getReturnType()->isVoidTy())
-    return false;
+    return 0;
   if (FTy->getNumParams() != 1)
-    return false;
+    return 0;
   if (FTy->param_begin()->get() != Type::getInt8PtrTy(Callee->getContext()))
-    return false;
+    return 0;
 
-  return true;
+  return CI;
 }