a4490217fc
In today's repo, attribute `llvm.emit_c_interface` of func op is handled outside of `mlir::convertFuncOpToLLVMFuncOp` in `FuncOpConversion` pattern. In some cases, `FuncOpConversion` can't be directly re-used, but we still want to re-use the code to emit c interface for `llvm.emit_c_interface`. Changes in this PR * move the code to generate c with "llvm.emit_c_interface" interface into `mlir::convertFuncOpToLLVMFuncOp` to be able to re-use it. * added unit test to verify c interface for jit can be generated correctly if only call `convertFuncOpToLLVMFuncOp`. * removed `FuncOpConversionBase` --------- Co-authored-by: Fung Xie <ftse@nvidia.com>
94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
//===- TestConvertFuncOp.cpp - Test LLVM Conversion of Func FuncOp --------===//
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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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#include "TestDialect.h"
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#include "mlir/Conversion/FuncToLLVM/ConvertFuncToLLVM.h"
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#include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
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#include "mlir/Conversion/LLVMCommon/Pattern.h"
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#include "mlir/Dialect/Func/IR/FuncOps.h"
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#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Pass/Pass.h"
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using namespace mlir;
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namespace {
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/// Test helper Conversion Pattern to directly call `convertFuncOpToLLVMFuncOp`
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/// to verify this utility function includes all functionalities of conversion
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struct FuncOpConversion : public ConvertOpToLLVMPattern<func::FuncOp> {
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FuncOpConversion(const LLVMTypeConverter &converter)
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: ConvertOpToLLVMPattern(converter) {}
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LogicalResult
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matchAndRewrite(func::FuncOp funcOp, OpAdaptor adaptor,
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ConversionPatternRewriter &rewriter) const override {
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FailureOr<LLVM::LLVMFuncOp> newFuncOp = mlir::convertFuncOpToLLVMFuncOp(
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cast<FunctionOpInterface>(funcOp.getOperation()), rewriter,
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*getTypeConverter());
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if (failed(newFuncOp))
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return rewriter.notifyMatchFailure(funcOp, "Could not convert funcop");
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rewriter.eraseOp(funcOp);
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return success();
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}
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};
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struct ReturnOpConversion : public ConvertOpToLLVMPattern<func::ReturnOp> {
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ReturnOpConversion(const LLVMTypeConverter &converter)
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: ConvertOpToLLVMPattern(converter) {}
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LogicalResult
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matchAndRewrite(func::ReturnOp returnOp, OpAdaptor adaptor,
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ConversionPatternRewriter &rewriter) const override {
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rewriter.replaceOpWithNewOp<LLVM::ReturnOp>(returnOp,
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returnOp->getOperands());
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return success();
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}
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};
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struct TestConvertFuncOp
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: public PassWrapper<TestConvertFuncOp, OperationPass<ModuleOp>> {
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MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestConvertFuncOp)
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void getDependentDialects(DialectRegistry ®istry) const final {
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registry.insert<LLVM::LLVMDialect>();
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}
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StringRef getArgument() const final { return "test-convert-func-op"; }
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StringRef getDescription() const final {
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return "Tests conversion of `func.func` to `llvm.func` for different "
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"attributes";
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}
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void runOnOperation() override {
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MLIRContext *ctx = &getContext();
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LowerToLLVMOptions options(ctx);
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// Populate type conversions.
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LLVMTypeConverter typeConverter(ctx, options);
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RewritePatternSet patterns(ctx);
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patterns.add<FuncOpConversion>(typeConverter);
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patterns.add<ReturnOpConversion>(typeConverter);
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LLVMConversionTarget target(getContext());
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if (failed(applyPartialConversion(getOperation(), target,
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std::move(patterns))))
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signalPassFailure();
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}
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};
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} // namespace
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namespace mlir::test {
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void registerConvertFuncOpPass() { PassRegistration<TestConvertFuncOp>(); }
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} // namespace mlir::test
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