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 18 using namespace llvm; 19 using namespace llvm::hlsl; 20 21 GlobalVariable *FrontendResource::getGlobalVariable() { 22 return cast<GlobalVariable>( 23 cast<ConstantAsMetadata>(Entry->getOperand(0))->getValue()); 24 } 25 26 ResourceKind FrontendResource::getResourceKind() { 27 return static_cast<ResourceKind>( 28 cast<ConstantInt>( 29 cast<ConstantAsMetadata>(Entry->getOperand(1))->getValue()) 30 ->getLimitedValue()); 31 } 32 ElementType FrontendResource::getElementType() { 33 return static_cast<ElementType>( 34 cast<ConstantInt>( 35 cast<ConstantAsMetadata>(Entry->getOperand(2))->getValue()) 36 ->getLimitedValue()); 37 } 38 bool FrontendResource::getIsROV() { 39 return cast<ConstantInt>( 40 cast<ConstantAsMetadata>(Entry->getOperand(3))->getValue()) 41 ->getLimitedValue(); 42 } 43 uint32_t FrontendResource::getResourceIndex() { 44 return cast<ConstantInt>( 45 cast<ConstantAsMetadata>(Entry->getOperand(4))->getValue()) 46 ->getLimitedValue(); 47 } 48 uint32_t FrontendResource::getSpace() { 49 return cast<ConstantInt>( 50 cast<ConstantAsMetadata>(Entry->getOperand(5))->getValue()) 51 ->getLimitedValue(); 52 } 53 54 FrontendResource::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