diff options
| -rw-r--r-- | llvm/include/llvm/IR/IRBuilder.h | 5 | ||||
| -rw-r--r-- | llvm/lib/IR/IRBuilder.cpp | 20 |
2 files changed, 25 insertions, 0 deletions
diff --git a/llvm/include/llvm/IR/IRBuilder.h b/llvm/include/llvm/IR/IRBuilder.h index 016e9e1d2c5..96cb800d882 100644 --- a/llvm/include/llvm/IR/IRBuilder.h +++ b/llvm/include/llvm/IR/IRBuilder.h @@ -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 = ""); diff --git a/llvm/lib/IR/IRBuilder.cpp b/llvm/lib/IR/IRBuilder.cpp index 298331d51c8..d3e410d6d03 100644 --- a/llvm/lib/IR/IRBuilder.cpp +++ b/llvm/lib/IR/IRBuilder.cpp @@ -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"); |
