Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to

use these soon.

llvm-svn: 131812

1 files changed, 30 insertions, 1 deletions

diff --git a/llvm/lib/VMCore/IRBuilder.cpp b/llvm/lib/VMCore/IRBuilder.cpp
index 21491557d4d..f2d469a2d84 100644
--- a/llvm/lib/VMCore/IRBuilder.cpp
+++ b/llvm/lib/VMCore/IRBuilder.cpp
@@ -60,7 +60,6 @@ static CallInst *createCallHelper(Value *Callee, Value *const* Ops,
   return CI;  
 }
 
-
 CallInst *IRBuilderBase::
 CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
              bool isVolatile, MDNode *TBAATag) {
@@ -118,3 +117,33 @@ CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
   
   return CI;  
 }
+
+CallInst *IRBuilderBase::CreateLifetimeStart(Value *Ptr, ConstantInt *Size) {
+  assert(isa<PointerType>(Ptr->getType()) &&
+	 "lifetime.start only applies to pointers.");
+  Ptr = getCastedInt8PtrValue(Ptr);
+  if (!Size)
+    Size = getInt64(-1);
+  else
+    assert(Size->getType() == getInt64Ty() &&
+	   "lifetime.start requires the size to be an i64");
+  Value *Ops[] = { Size, Ptr };
+  Module *M = BB->getParent()->getParent();
+  Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_start);
+  return createCallHelper(TheFn, Ops, 2, this);
+}
+
+CallInst *IRBuilderBase::CreateLifetimeEnd(Value *Ptr, ConstantInt *Size) {
+  assert(isa<PointerType>(Ptr->getType()) &&
+	 "lifetime.end only applies to pointers.");
+  Ptr = getCastedInt8PtrValue(Ptr);
+  if (!Size)
+    Size = getInt64(-1);
+  else
+    assert(Size->getType() == getInt64Ty() &&
+	   "lifetime.end requires the size to be an i64");
+  Value *Ops[] = { Size, Ptr };
+  Module *M = BB->getParent()->getParent();
+  Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_end);
+  return createCallHelper(TheFn, Ops, 2, this);
+}