e95e94adc6
This PR massively reorganizes the Test dialect's source files. It moves manually-written op hooks into `TestOpDefs.cpp`, moves format custom directive parsers and printers into `TestFormatUtils`, adds missing comment blocks, and moves around where generated source files are included for types, attributes, enums, etc. into their own source file. This will hopefully help navigate the test dialect source code, but also speeds up compile time of the test dialect by putting generated source files into separate compilation units. This also sets up the test dialect to shard its op definitions, done in the next PR.
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
//===- TestFromLLVMIRTranslation.cpp - Import Test dialect from LLVM IR ---===//
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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 file implements a translation between LLVM IR and the MLIR Test dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "TestDialect.h"
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#include "TestOps.h"
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#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/IR/BuiltinAttributes.h"
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#include "mlir/IR/BuiltinOps.h"
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#include "mlir/Support/LLVM.h"
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#include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMIRToLLVMTranslation.h"
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#include "mlir/Target/LLVMIR/Import.h"
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#include "mlir/Target/LLVMIR/ModuleImport.h"
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#include "mlir/Tools/mlir-translate/Translation.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Verifier.h"
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#include "llvm/IRReader/IRReader.h"
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#include "llvm/Support/SourceMgr.h"
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using namespace mlir;
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using namespace test;
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static ArrayRef<unsigned> getSupportedInstructionsImpl() {
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static unsigned instructions[] = {llvm::Instruction::Load};
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return instructions;
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}
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static LogicalResult convertLoad(OpBuilder &builder, llvm::Instruction *inst,
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ArrayRef<llvm::Value *> llvmOperands,
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LLVM::ModuleImport &moduleImport) {
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FailureOr<Value> addr = moduleImport.convertValue(llvmOperands[0]);
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if (failed(addr))
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return failure();
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// Create the LoadOp
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Value loadOp = builder.create<LLVM::LoadOp>(
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moduleImport.translateLoc(inst->getDebugLoc()),
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moduleImport.convertType(inst->getType()), *addr);
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moduleImport.mapValue(inst) = builder.create<SameOperandElementTypeOp>(
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loadOp.getLoc(), loadOp.getType(), loadOp, loadOp);
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return success();
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}
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namespace {
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class TestDialectLLVMImportDialectInterface
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: public LLVMImportDialectInterface {
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public:
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using LLVMImportDialectInterface::LLVMImportDialectInterface;
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LogicalResult
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convertInstruction(OpBuilder &builder, llvm::Instruction *inst,
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ArrayRef<llvm::Value *> llvmOperands,
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LLVM::ModuleImport &moduleImport) const override {
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switch (inst->getOpcode()) {
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case llvm::Instruction::Load:
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return convertLoad(builder, inst, llvmOperands, moduleImport);
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default:
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break;
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}
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return failure();
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}
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ArrayRef<unsigned> getSupportedInstructions() const override {
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return getSupportedInstructionsImpl();
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}
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};
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} // namespace
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namespace mlir {
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void registerTestFromLLVMIR() {
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TranslateToMLIRRegistration registration(
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"test-import-llvmir", "test dialect from LLVM IR",
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[](llvm::SourceMgr &sourceMgr,
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MLIRContext *context) -> OwningOpRef<Operation *> {
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llvm::SMDiagnostic err;
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llvm::LLVMContext llvmContext;
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std::unique_ptr<llvm::Module> llvmModule =
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llvm::parseIR(*sourceMgr.getMemoryBuffer(sourceMgr.getMainFileID()),
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err, llvmContext);
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if (!llvmModule) {
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std::string errStr;
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llvm::raw_string_ostream errStream(errStr);
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err.print(/*ProgName=*/"", errStream);
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emitError(UnknownLoc::get(context)) << errStream.str();
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return {};
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}
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if (llvm::verifyModule(*llvmModule, &llvm::errs()))
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return nullptr;
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return translateLLVMIRToModule(std::move(llvmModule), context, false);
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},
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[](DialectRegistry ®istry) {
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registry.insert<DLTIDialect>();
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registry.insert<test::TestDialect>();
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registerLLVMDialectImport(registry);
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registry.addExtension(
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+[](MLIRContext *ctx, test::TestDialect *dialect) {
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dialect->addInterfaces<TestDialectLLVMImportDialectInterface>();
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});
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});
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}
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} // namespace mlir
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