39ce99589b
This change introduces the cir-canonicalize pass. This is a simple cir-to-cir transformation that eliminates empty scopes and redundant branches. It will be expanded in future changes to simplify other redundant instruction sequences. MLIR verification and mlir-specific command-line option handling is also introduced here.
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//===--- CIRGenerator.cpp - Emit CIR from ASTs ----------------------------===//
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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 builds an AST and converts it to CIR.
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//
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//===----------------------------------------------------------------------===//
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#include "CIRGenModule.h"
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#include "mlir/IR/MLIRContext.h"
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#include "clang/AST/DeclGroup.h"
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#include "clang/CIR/CIRGenerator.h"
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#include "clang/CIR/Dialect/IR/CIRDialect.h"
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using namespace cir;
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using namespace clang;
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void CIRGenerator::anchor() {}
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CIRGenerator::CIRGenerator(clang::DiagnosticsEngine &diags,
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llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> vfs,
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const CodeGenOptions &cgo)
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: diags(diags), fs(std::move(vfs)), codeGenOpts{cgo} {}
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CIRGenerator::~CIRGenerator() = default;
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void CIRGenerator::Initialize(ASTContext &astContext) {
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using namespace llvm;
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this->astContext = &astContext;
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mlirContext = std::make_unique<mlir::MLIRContext>();
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mlirContext->loadDialect<cir::CIRDialect>();
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cgm = std::make_unique<clang::CIRGen::CIRGenModule>(
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*mlirContext.get(), astContext, codeGenOpts, diags);
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}
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bool CIRGenerator::verifyModule() const { return cgm->verifyModule(); }
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mlir::ModuleOp CIRGenerator::getModule() const { return cgm->getModule(); }
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bool CIRGenerator::HandleTopLevelDecl(DeclGroupRef group) {
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if (diags.hasUnrecoverableErrorOccurred())
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return true;
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for (Decl *decl : group)
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cgm->emitTopLevelDecl(decl);
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return true;
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}
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