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//===- DialectConversion.cpp - Dialect conversion unit tests --------------===//
//
// 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 "mlir/Transforms/DialectConversion.h"
#include "gtest/gtest.h"
using namespace mlir;
static Operation *createOp(MLIRContext *context) {
context->allowUnregisteredDialects();
return Operation::create(
UnknownLoc::get(context), OperationName("foo.bar", context), std::nullopt,
std::nullopt, std::nullopt, /*properties=*/nullptr, std::nullopt, 0);
}
namespace {
struct DummyOp {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(DummyOp)
static StringRef getOperationName() { return "foo.bar"; }
};
TEST(DialectConversionTest, DynamicallyLegalOpCallbackOrder) {
MLIRContext context;
ConversionTarget target(context);
int index = 0;
int callbackCalled1 = 0;
target.addDynamicallyLegalOp<DummyOp>([&](Operation *) {
callbackCalled1 = ++index;
return true;
});
int callbackCalled2 = 0;
target.addDynamicallyLegalOp<DummyOp>(
[&](Operation *) -> std::optional<bool> {
callbackCalled2 = ++index;
return std::nullopt;
});
auto *op = createOp(&context);
EXPECT_TRUE(target.isLegal(op));
EXPECT_EQ(2, callbackCalled1);
EXPECT_EQ(1, callbackCalled2);
EXPECT_FALSE(target.isIllegal(op));
EXPECT_EQ(4, callbackCalled1);
EXPECT_EQ(3, callbackCalled2);
op->destroy();
}
TEST(DialectConversionTest, DynamicallyLegalOpCallbackSkip) {
MLIRContext context;
ConversionTarget target(context);
int index = 0;
int callbackCalled = 0;
target.addDynamicallyLegalOp<DummyOp>(
[&](Operation *) -> std::optional<bool> {
callbackCalled = ++index;
return std::nullopt;
});
auto *op = createOp(&context);
EXPECT_FALSE(target.isLegal(op));
EXPECT_EQ(1, callbackCalled);
EXPECT_FALSE(target.isIllegal(op));
EXPECT_EQ(2, callbackCalled);
op->destroy();
}
TEST(DialectConversionTest, DynamicallyLegalUnknownOpCallbackOrder) {
MLIRContext context;
ConversionTarget target(context);
int index = 0;
int callbackCalled1 = 0;
target.markUnknownOpDynamicallyLegal([&](Operation *) {
callbackCalled1 = ++index;
return true;
});
int callbackCalled2 = 0;
target.markUnknownOpDynamicallyLegal([&](Operation *) -> std::optional<bool> {
callbackCalled2 = ++index;
return std::nullopt;
});
auto *op = createOp(&context);
EXPECT_TRUE(target.isLegal(op));
EXPECT_EQ(2, callbackCalled1);
EXPECT_EQ(1, callbackCalled2);
EXPECT_FALSE(target.isIllegal(op));
EXPECT_EQ(4, callbackCalled1);
EXPECT_EQ(3, callbackCalled2);
op->destroy();
}
TEST(DialectConversionTest, DynamicallyLegalReturnNone) {
MLIRContext context;
ConversionTarget target(context);
target.addDynamicallyLegalOp<DummyOp>(
[&](Operation *) -> std::optional<bool> { return std::nullopt; });
auto *op = createOp(&context);
EXPECT_FALSE(target.isLegal(op));
EXPECT_FALSE(target.isIllegal(op));
EXPECT_TRUE(succeeded(applyPartialConversion(op, target, {})));
EXPECT_TRUE(failed(applyFullConversion(op, target, {})));
op->destroy();
}
TEST(DialectConversionTest, DynamicallyLegalUnknownReturnNone) {
MLIRContext context;
ConversionTarget target(context);
target.markUnknownOpDynamicallyLegal(
[&](Operation *) -> std::optional<bool> { return std::nullopt; });
auto *op = createOp(&context);
EXPECT_FALSE(target.isLegal(op));
EXPECT_FALSE(target.isIllegal(op));
EXPECT_TRUE(succeeded(applyPartialConversion(op, target, {})));
EXPECT_TRUE(failed(applyFullConversion(op, target, {})));
op->destroy();
}
} // namespace
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