73417c5176
The DXIL validator version option(/validator-version) decide the validator version when compile hlsl. The format is major.minor like 1.0. In normal case, the value of validator version should be got from DXIL validator. Before we got DXIL validator ready for llvm/main, DXIL validator version option is added first to set validator version. It will affect code generation for DXIL, so it is treated as a code gen option. A new member std::string DxilValidatorVersion is added to clang::CodeGenOptions. Then CGHLSLRuntime is added to clang::CodeGenModule. It is used to translate clang::CodeGenOptions::DxilValidatorVersion into a ModuleFlag under key "dx.valver" at end of clang code generation. Reviewed By: beanz Differential Revision: https://reviews.llvm.org/D123884
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
//===----- CGHLSLRuntime.cpp - Interface to HLSL Runtimes -----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This provides an abstract class for HLSL code generation. Concrete
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// subclasses of this implement code generation for specific HLSL
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// runtime libraries.
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//
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//===----------------------------------------------------------------------===//
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#include "CGHLSLRuntime.h"
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#include "CodeGenModule.h"
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#include "clang/Basic/TargetOptions.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/IR/Module.h"
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using namespace clang;
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using namespace CodeGen;
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using namespace llvm;
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namespace {
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void addDxilValVersion(StringRef ValVersionStr, llvm::Module &M) {
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// The validation of ValVersionStr is done at HLSLToolChain::TranslateArgs.
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// Assume ValVersionStr is legal here.
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VersionTuple Version;
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if (Version.tryParse(ValVersionStr) || Version.getBuild() ||
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Version.getSubminor() || !Version.getMinor()) {
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return;
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}
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uint64_t Major = Version.getMajor();
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uint64_t Minor = Version.getMinor().getValue();
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auto &Ctx = M.getContext();
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IRBuilder<> B(M.getContext());
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MDNode *Val = MDNode::get(Ctx, {ConstantAsMetadata::get(B.getInt32(Major)),
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ConstantAsMetadata::get(B.getInt32(Minor))});
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StringRef DxilValKey = "dx.valver";
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M.addModuleFlag(llvm::Module::ModFlagBehavior::AppendUnique, DxilValKey, Val);
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}
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} // namespace
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void CGHLSLRuntime::finishCodeGen() {
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auto &TargetOpts = CGM.getTarget().getTargetOpts();
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llvm::Module &M = CGM.getModule();
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addDxilValVersion(TargetOpts.DxilValidatorVersion, M);
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}
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