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//===- TestDialectConversion.cpp - Test DialectConversion functionality ---===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "TestDialect.h"
#include "mlir/Dialect/Func/IR/FuncOps.h"
#include "mlir/Dialect/PDL/IR/PDL.h"
#include "mlir/Dialect/PDLInterp/IR/PDLInterp.h"
#include "mlir/Parser/Parser.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Pass/PassManager.h"
#include "mlir/Transforms/DialectConversion.h"
using namespace mlir;
using namespace test;
//===----------------------------------------------------------------------===//
// Test PDLL Support
//===----------------------------------------------------------------------===//
#include "TestDialectConversionPDLLPatterns.h.inc"
namespace {
struct PDLLTypeConverter : public TypeConverter {
PDLLTypeConverter() {
addConversion(convertType);
addArgumentMaterialization(materializeCast);
addSourceMaterialization(materializeCast);
}
static LogicalResult convertType(Type t, SmallVectorImpl<Type> &results) {
// Convert I64 to F64.
if (t.isSignlessInteger(64)) {
results.push_back(FloatType::getF64(t.getContext()));
return success();
}
// Otherwise, convert the type directly.
results.push_back(t);
return success();
}
/// Hook for materializing a conversion.
static std::optional<Value> materializeCast(OpBuilder &builder,
Type resultType,
ValueRange inputs, Location loc) {
return builder.create<UnrealizedConversionCastOp>(loc, resultType, inputs)
.getResult(0);
}
};
struct TestDialectConversionPDLLPass
: public PassWrapper<TestDialectConversionPDLLPass, OperationPass<>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestDialectConversionPDLLPass)
StringRef getArgument() const final { return "test-dialect-conversion-pdll"; }
StringRef getDescription() const final {
return "Test DialectConversion PDLL functionality";
}
void getDependentDialects(DialectRegistry ®istry) const override {
registry.insert<pdl::PDLDialect, pdl_interp::PDLInterpDialect>();
}
LogicalResult initialize(MLIRContext *ctx) override {
// Build the pattern set within the `initialize` to avoid recompiling PDL
// patterns during each `runOnOperation` invocation.
RewritePatternSet patternList(ctx);
registerConversionPDLFunctions(patternList);
populateGeneratedPDLLPatterns(patternList, PDLConversionConfig(&converter));
patterns = std::move(patternList);
return success();
}
void runOnOperation() final {
mlir::ConversionTarget target(getContext());
target.addLegalOp<ModuleOp, func::FuncOp, func::ReturnOp>();
target.addDynamicallyLegalDialect<TestDialect>(
[this](Operation *op) { return converter.isLegal(op); });
if (failed(mlir::applyFullConversion(getOperation(), target, patterns)))
signalPassFailure();
}
FrozenRewritePatternSet patterns;
PDLLTypeConverter converter;
};
} // namespace
namespace mlir {
namespace test {
void registerTestDialectConversionPasses() {
PassRegistration<TestDialectConversionPDLLPass>();
}
} // namespace test
} // namespace mlir
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