f2526c1a5c
This change is a big blob of code that isn't easy to break up. It either comes in all together as a blob, works and has tests, or it doesn't do anything. Logically you can think of this patch as three things: (1) Adding virtual interfaces so the bitcode writer can be overridden (2) Adding a new bitcode writer implementation for DXIL (3) Adding some (optional) crazy CMake goop to build the DirectXShaderCompiler's llvm-dis as dxil-dis for testing Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D122082
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
//===- DXILWriterPass.cpp - Bitcode writing pass --------------------------===//
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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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// DXILWriterPass implementation.
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//
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//===----------------------------------------------------------------------===//
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#include "DXILWriterPass.h"
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#include "DXILBitcodeWriter.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Analysis/ModuleSummaryAnalysis.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PassManager.h"
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#include "llvm/InitializePasses.h"
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#include "llvm/Pass.h"
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using namespace llvm;
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using namespace llvm::dxil;
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namespace {
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class WriteDXILPass : public llvm::ModulePass {
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raw_ostream &OS; // raw_ostream to print on
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public:
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static char ID; // Pass identification, replacement for typeid
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WriteDXILPass() : ModulePass(ID), OS(dbgs()) {
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initializeWriteDXILPassPass(*PassRegistry::getPassRegistry());
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}
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explicit WriteDXILPass(raw_ostream &o) : ModulePass(ID), OS(o) {
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initializeWriteDXILPassPass(*PassRegistry::getPassRegistry());
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}
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StringRef getPassName() const override { return "Bitcode Writer"; }
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bool runOnModule(Module &M) override {
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WriteDXILToFile(M, OS);
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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};
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} // namespace
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char WriteDXILPass::ID = 0;
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INITIALIZE_PASS_BEGIN(WriteDXILPass, "write-bitcode", "Write Bitcode", false,
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true)
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INITIALIZE_PASS_DEPENDENCY(ModuleSummaryIndexWrapperPass)
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INITIALIZE_PASS_END(WriteDXILPass, "write-bitcode", "Write Bitcode", false,
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true)
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ModulePass *llvm::createDXILWriterPass(raw_ostream &Str) {
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return new WriteDXILPass(Str);
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}
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