| 1 | //===- HLSLRuntime.h - HLSL Runtime -----------------------------*- C++ -*-===// |
|---|---|
| 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 |
| 10 | /// Defines helper utilities for supporting the HLSL runtime environment. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #ifndef CLANG_BASIC_HLSLRUNTIME_H |
| 15 | #define CLANG_BASIC_HLSLRUNTIME_H |
| 16 | |
| 17 | #include "clang/Basic/LangOptions.h" |
| 18 | #include <cstdint> |
| 19 | |
| 20 | namespace clang { |
| 21 | namespace hlsl { |
| 22 | |
| 23 | constexpr ShaderStage |
| 24 | getStageFromEnvironment(const llvm::Triple::EnvironmentType &E) { |
| 25 | uint32_t Pipeline = |
| 26 | static_cast<uint32_t>(E) - static_cast<uint32_t>(llvm::Triple::Pixel); |
| 27 | |
| 28 | if (Pipeline > (uint32_t)ShaderStage::Invalid) |
| 29 | return ShaderStage::Invalid; |
| 30 | return static_cast<ShaderStage>(Pipeline); |
| 31 | } |
| 32 | |
| 33 | #define ENUM_COMPARE_ASSERT(Value) \ |
| 34 | static_assert( \ |
| 35 | getStageFromEnvironment(llvm::Triple::Value) == ShaderStage::Value, \ |
| 36 | "Mismatch between llvm::Triple and clang::ShaderStage for " #Value); |
| 37 | |
| 38 | ENUM_COMPARE_ASSERT(Pixel) |
| 39 | ENUM_COMPARE_ASSERT(Vertex) |
| 40 | ENUM_COMPARE_ASSERT(Geometry) |
| 41 | ENUM_COMPARE_ASSERT(Hull) |
| 42 | ENUM_COMPARE_ASSERT(Domain) |
| 43 | ENUM_COMPARE_ASSERT(Compute) |
| 44 | ENUM_COMPARE_ASSERT(Library) |
| 45 | ENUM_COMPARE_ASSERT(RayGeneration) |
| 46 | ENUM_COMPARE_ASSERT(Intersection) |
| 47 | ENUM_COMPARE_ASSERT(AnyHit) |
| 48 | ENUM_COMPARE_ASSERT(ClosestHit) |
| 49 | ENUM_COMPARE_ASSERT(Miss) |
| 50 | ENUM_COMPARE_ASSERT(Callable) |
| 51 | ENUM_COMPARE_ASSERT(Mesh) |
| 52 | ENUM_COMPARE_ASSERT(Amplification) |
| 53 | |
| 54 | static_assert(getStageFromEnvironment(E: llvm::Triple::UnknownEnvironment) == |
| 55 | ShaderStage::Invalid, |
| 56 | "Mismatch between llvm::Triple and " |
| 57 | "clang::ShaderStage for Invalid"); |
| 58 | static_assert(getStageFromEnvironment(E: llvm::Triple::MSVC) == |
| 59 | ShaderStage::Invalid, |
| 60 | "Mismatch between llvm::Triple and " |
| 61 | "clang::ShaderStage for Invalid"); |
| 62 | |
| 63 | } // namespace hlsl |
| 64 | } // namespace clang |
| 65 | |
| 66 | #endif // CLANG_BASIC_HLSLRUNTIME_H |
| 67 |