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Add invariant start call creation in IRBuilder.NFC

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Differential Revision: https://reviews.llvm.org/D22700

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@276471 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anna Thomas 2016-07-22 20:57:23 +00:00
parent 2b421e1c7e
commit 3b6613c9db
2 changed files with 25 additions and 0 deletions
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5
include/llvm/IR/IRBuilder.h
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@ -446,6 +446,11 @@ public:
/// If the pointer isn't i8* it will be converted.
CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = nullptr);
/// Create a call to invariant.start intrinsic.
///
/// If the pointer isn't i8* it will be converted.
CallInst *CreateInvariantStart(Value *Ptr, ConstantInt *Size = nullptr);
/// \brief Create a call to Masked Load intrinsic
CallInst *CreateMaskedLoad(Value *Ptr, unsigned Align, Value *Mask,
Value *PassThru = nullptr, const Twine &Name = "");

20
lib/IR/IRBuilder.cpp
View File

@ -191,6 +191,26 @@ CallInst *IRBuilderBase::CreateLifetimeEnd(Value *Ptr, ConstantInt *Size) {
return createCallHelper(TheFn, Ops, this);
}
CallInst *IRBuilderBase::CreateInvariantStart(Value *Ptr, ConstantInt *Size) {
assert(isa<PointerType>(Ptr->getType()) &&
"invariant.start only applies to pointers.");
Ptr = getCastedInt8PtrValue(Ptr);
if (!Size)
Size = getInt64(-1);
else
assert(Size->getType() == getInt64Ty() &&
"invariant.start requires the size to be an i64");
Value *Ops[] = {Size, Ptr};
// Fill in the single overloaded type: memory object type.
Type *ObjectPtr[1] = {Ptr->getType()};
Module *M = BB->getParent()->getParent();
Value *TheFn =
Intrinsic::getDeclaration(M, Intrinsic::invariant_start, ObjectPtr);
return createCallHelper(TheFn, Ops, this);
}
CallInst *IRBuilderBase::CreateAssumption(Value *Cond) {
assert(Cond->getType() == getInt1Ty() &&
"an assumption condition must be of type i1");