1//===- HLSLResource.cpp - HLSL Resource helper objects --------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8/// 9/// \file This file contains helper objects for working with HLSL Resources. 10/// 11//===----------------------------------------------------------------------===// 12 13#include "llvm/Frontend/HLSL/HLSLResource.h" 14#include "llvm/IR/IRBuilder.h" 15#include "llvm/IR/Metadata.h" 16#include "llvm/IR/Module.h" 17 18using namespace llvm; 19using namespace llvm::hlsl; 20 21GlobalVariable *FrontendResource::getGlobalVariable() { 22 return cast<GlobalVariable>( 23 cast<ConstantAsMetadata>(Entry->getOperand(0))->getValue()); 24} 25 26ResourceKind FrontendResource::getResourceKind() { 27 return static_cast<ResourceKind>( 28 cast<ConstantInt>( 29 cast<ConstantAsMetadata>(Entry->getOperand(1))->getValue()) 30 ->getLimitedValue()); 31} 32ElementType FrontendResource::getElementType() { 33 return static_cast<ElementType>( 34 cast<ConstantInt>( 35 cast<ConstantAsMetadata>(Entry->getOperand(2))->getValue()) 36 ->getLimitedValue()); 37} 38bool FrontendResource::getIsROV() { 39 return cast<ConstantInt>( 40 cast<ConstantAsMetadata>(Entry->getOperand(3))->getValue()) 41 ->getLimitedValue(); 42} 43uint32_t FrontendResource::getResourceIndex() { 44 return cast<ConstantInt>( 45 cast<ConstantAsMetadata>(Entry->getOperand(4))->getValue()) 46 ->getLimitedValue(); 47} 48uint32_t FrontendResource::getSpace() { 49 return cast<ConstantInt>( 50 cast<ConstantAsMetadata>(Entry->getOperand(5))->getValue()) 51 ->getLimitedValue(); 52} 53 54FrontendResource::FrontendResource(GlobalVariable *GV, ResourceKind RK, 55 ElementType ElTy, bool IsROV, 56 uint32_t ResIndex, uint32_t Space) { 57 auto &Ctx = GV->getContext(); 58 IRBuilder<> B(Ctx); 59 Entry = MDNode::get( 60 Ctx, {ValueAsMetadata::get(GV), 61 ConstantAsMetadata::get(B.getInt32(static_cast<int>(RK))), 62 ConstantAsMetadata::get(B.getInt32(static_cast<int>(ElTy))), 63 ConstantAsMetadata::get(B.getInt1(IsROV)), 64 ConstantAsMetadata::get(B.getInt32(ResIndex)), 65 ConstantAsMetadata::get(B.getInt32(Space))}); 66} 67