Files
clang-p2996/mlir/test/lib/TestDialect/TestDialect.cpp
Mehdi Amini 308571074c Mass update the MLIR license header to mention "Part of the LLVM project"
This is an artifact from merging MLIR into LLVM, the file headers are
now aligned with the rest of the project.
2020-01-26 03:58:30 +00:00

341 lines
13 KiB
C++

//===- TestDialect.cpp - MLIR Dialect for Testing -------------------------===//
//
// 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/IR/Function.h"
#include "mlir/IR/Module.h"
#include "mlir/IR/PatternMatch.h"
#include "mlir/IR/TypeUtilities.h"
#include "mlir/Transforms/FoldUtils.h"
#include "mlir/Transforms/InliningUtils.h"
#include "llvm/ADT/StringSwitch.h"
using namespace mlir;
//===----------------------------------------------------------------------===//
// TestDialect Interfaces
//===----------------------------------------------------------------------===//
namespace {
// Test support for interacting with the AsmPrinter.
struct TestOpAsmInterface : public OpAsmDialectInterface {
using OpAsmDialectInterface::OpAsmDialectInterface;
void getAsmResultNames(Operation *op,
OpAsmSetValueNameFn setNameFn) const final {
if (auto asmOp = dyn_cast<AsmDialectInterfaceOp>(op))
setNameFn(asmOp, "result");
}
void getAsmBlockArgumentNames(Block *block,
OpAsmSetValueNameFn setNameFn) const final {
auto op = block->getParentOp();
auto arrayAttr = op->getAttrOfType<ArrayAttr>("arg_names");
if (!arrayAttr)
return;
auto args = block->getArguments();
auto e = std::min(arrayAttr.size(), args.size());
for (unsigned i = 0; i < e; ++i) {
if (auto strAttr = arrayAttr.getValue()[i].dyn_cast<StringAttr>())
setNameFn(args[i], strAttr.getValue());
}
}
};
struct TestOpFolderDialectInterface : public OpFolderDialectInterface {
using OpFolderDialectInterface::OpFolderDialectInterface;
/// Registered hook to check if the given region, which is attached to an
/// operation that is *not* isolated from above, should be used when
/// materializing constants.
bool shouldMaterializeInto(Region *region) const final {
// If this is a one region operation, then insert into it.
return isa<OneRegionOp>(region->getParentOp());
}
};
/// This class defines the interface for handling inlining with standard
/// operations.
struct TestInlinerInterface : public DialectInlinerInterface {
using DialectInlinerInterface::DialectInlinerInterface;
//===--------------------------------------------------------------------===//
// Analysis Hooks
//===--------------------------------------------------------------------===//
bool isLegalToInline(Region *, Region *, BlockAndValueMapping &) const final {
// Inlining into test dialect regions is legal.
return true;
}
bool isLegalToInline(Operation *, Region *,
BlockAndValueMapping &) const final {
return true;
}
bool shouldAnalyzeRecursively(Operation *op) const final {
// Analyze recursively if this is not a functional region operation, it
// froms a separate functional scope.
return !isa<FunctionalRegionOp>(op);
}
//===--------------------------------------------------------------------===//
// Transformation Hooks
//===--------------------------------------------------------------------===//
/// Handle the given inlined terminator by replacing it with a new operation
/// as necessary.
void handleTerminator(Operation *op,
ArrayRef<Value> valuesToRepl) const final {
// Only handle "test.return" here.
auto returnOp = dyn_cast<TestReturnOp>(op);
if (!returnOp)
return;
// Replace the values directly with the return operands.
assert(returnOp.getNumOperands() == valuesToRepl.size());
for (const auto &it : llvm::enumerate(returnOp.getOperands()))
valuesToRepl[it.index()].replaceAllUsesWith(it.value());
}
/// Attempt to materialize a conversion for a type mismatch between a call
/// from this dialect, and a callable region. This method should generate an
/// operation that takes 'input' as the only operand, and produces a single
/// result of 'resultType'. If a conversion can not be generated, nullptr
/// should be returned.
Operation *materializeCallConversion(OpBuilder &builder, Value input,
Type resultType,
Location conversionLoc) const final {
// Only allow conversion for i16/i32 types.
if (!(resultType.isInteger(16) || resultType.isInteger(32)) ||
!(input.getType().isInteger(16) || input.getType().isInteger(32)))
return nullptr;
return builder.create<TestCastOp>(conversionLoc, resultType, input);
}
};
} // end anonymous namespace
//===----------------------------------------------------------------------===//
// TestDialect
//===----------------------------------------------------------------------===//
TestDialect::TestDialect(MLIRContext *context)
: Dialect(getDialectName(), context) {
addOperations<
#define GET_OP_LIST
#include "TestOps.cpp.inc"
>();
addInterfaces<TestOpAsmInterface, TestOpFolderDialectInterface,
TestInlinerInterface>();
allowUnknownOperations();
}
LogicalResult TestDialect::verifyOperationAttribute(Operation *op,
NamedAttribute namedAttr) {
if (namedAttr.first == "test.invalid_attr")
return op->emitError() << "invalid to use 'test.invalid_attr'";
return success();
}
LogicalResult TestDialect::verifyRegionArgAttribute(Operation *op,
unsigned regionIndex,
unsigned argIndex,
NamedAttribute namedAttr) {
if (namedAttr.first == "test.invalid_attr")
return op->emitError() << "invalid to use 'test.invalid_attr'";
return success();
}
LogicalResult
TestDialect::verifyRegionResultAttribute(Operation *op, unsigned regionIndex,
unsigned resultIndex,
NamedAttribute namedAttr) {
if (namedAttr.first == "test.invalid_attr")
return op->emitError() << "invalid to use 'test.invalid_attr'";
return success();
}
//===----------------------------------------------------------------------===//
// Test IsolatedRegionOp - parse passthrough region arguments.
//===----------------------------------------------------------------------===//
static ParseResult parseIsolatedRegionOp(OpAsmParser &parser,
OperationState &result) {
OpAsmParser::OperandType argInfo;
Type argType = parser.getBuilder().getIndexType();
// Parse the input operand.
if (parser.parseOperand(argInfo) ||
parser.resolveOperand(argInfo, argType, result.operands))
return failure();
// Parse the body region, and reuse the operand info as the argument info.
Region *body = result.addRegion();
return parser.parseRegion(*body, argInfo, argType,
/*enableNameShadowing=*/true);
}
static void print(OpAsmPrinter &p, IsolatedRegionOp op) {
p << "test.isolated_region ";
p.printOperand(op.getOperand());
p.shadowRegionArgs(op.region(), op.getOperand());
p.printRegion(op.region(), /*printEntryBlockArgs=*/false);
}
//===----------------------------------------------------------------------===//
// Test parser.
//===----------------------------------------------------------------------===//
static ParseResult parseWrappedKeywordOp(OpAsmParser &parser,
OperationState &result) {
StringRef keyword;
if (parser.parseKeyword(&keyword))
return failure();
result.addAttribute("keyword", parser.getBuilder().getStringAttr(keyword));
return success();
}
static void print(OpAsmPrinter &p, WrappedKeywordOp op) {
p << WrappedKeywordOp::getOperationName() << " " << op.keyword();
}
//===----------------------------------------------------------------------===//
// Test WrapRegionOp - wrapping op exercising `parseGenericOperation()`.
static ParseResult parseWrappingRegionOp(OpAsmParser &parser,
OperationState &result) {
if (parser.parseKeyword("wraps"))
return failure();
// Parse the wrapped op in a region
Region &body = *result.addRegion();
body.push_back(new Block);
Block &block = body.back();
Operation *wrapped_op = parser.parseGenericOperation(&block, block.begin());
if (!wrapped_op)
return failure();
// Create a return terminator in the inner region, pass as operand to the
// terminator the returned values from the wrapped operation.
SmallVector<Value, 8> return_operands(wrapped_op->getResults());
OpBuilder builder(parser.getBuilder().getContext());
builder.setInsertionPointToEnd(&block);
builder.create<TestReturnOp>(wrapped_op->getLoc(), return_operands);
// Get the results type for the wrapping op from the terminator operands.
Operation &return_op = body.back().back();
result.types.append(return_op.operand_type_begin(),
return_op.operand_type_end());
// Use the location of the wrapped op for the "test.wrapping_region" op.
result.location = wrapped_op->getLoc();
return success();
}
static void print(OpAsmPrinter &p, WrappingRegionOp op) {
p << op.getOperationName() << " wraps ";
p.printGenericOp(&op.region().front().front());
}
//===----------------------------------------------------------------------===//
// Test PolyForOp - parse list of region arguments.
//===----------------------------------------------------------------------===//
static ParseResult parsePolyForOp(OpAsmParser &parser, OperationState &result) {
SmallVector<OpAsmParser::OperandType, 4> ivsInfo;
// Parse list of region arguments without a delimiter.
if (parser.parseRegionArgumentList(ivsInfo))
return failure();
// Parse the body region.
Region *body = result.addRegion();
auto &builder = parser.getBuilder();
SmallVector<Type, 4> argTypes(ivsInfo.size(), builder.getIndexType());
return parser.parseRegion(*body, ivsInfo, argTypes);
}
//===----------------------------------------------------------------------===//
// Test removing op with inner ops.
//===----------------------------------------------------------------------===//
namespace {
struct TestRemoveOpWithInnerOps
: public OpRewritePattern<TestOpWithRegionPattern> {
using OpRewritePattern<TestOpWithRegionPattern>::OpRewritePattern;
PatternMatchResult matchAndRewrite(TestOpWithRegionPattern op,
PatternRewriter &rewriter) const override {
rewriter.eraseOp(op);
return matchSuccess();
}
};
} // end anonymous namespace
void TestOpWithRegionPattern::getCanonicalizationPatterns(
OwningRewritePatternList &results, MLIRContext *context) {
results.insert<TestRemoveOpWithInnerOps>(context);
}
OpFoldResult TestOpWithRegionFold::fold(ArrayRef<Attribute> operands) {
return operand();
}
LogicalResult TestOpWithVariadicResultsAndFolder::fold(
ArrayRef<Attribute> operands, SmallVectorImpl<OpFoldResult> &results) {
for (Value input : this->operands()) {
results.push_back(input);
}
return success();
}
LogicalResult mlir::OpWithInferTypeInterfaceOp::inferReturnTypes(
MLIRContext *, Optional<Location> location, ValueRange operands,
ArrayRef<NamedAttribute> attributes, RegionRange regions,
SmallVectorImpl<Type> &inferedReturnTypes) {
if (operands[0].getType() != operands[1].getType()) {
return emitOptionalError(location, "operand type mismatch ",
operands[0].getType(), " vs ",
operands[1].getType());
}
inferedReturnTypes.assign({operands[0].getType()});
return success();
}
LogicalResult OpWithShapedTypeInferTypeInterfaceOp::inferReturnTypeComponents(
MLIRContext *context, Optional<Location> location, ValueRange operands,
ArrayRef<NamedAttribute> attributes, RegionRange regions,
SmallVectorImpl<ShapedTypeComponents> &inferedComponents) {
// Create return type consisting of the first element of each shape of the
// input operands or unknown for unranked operand.
std::vector<int64_t> shape;
shape.reserve(operands.size());
for (auto operandType : operands.getTypes()) {
if (auto sval = operandType.dyn_cast<ShapedType>()) {
if (sval.hasRank())
shape.push_back(sval.getShape().front());
else
shape.push_back(ShapedType::kDynamicSize);
} else {
return emitOptionalError(location, "only shaped type operands allowed");
}
}
inferedComponents.reserve(1);
auto type = IntegerType::get(17, context);
inferedComponents.emplace_back(shape, type);
return success();
}
// Static initialization for Test dialect registration.
static mlir::DialectRegistration<mlir::TestDialect> testDialect;
#include "TestOpEnums.cpp.inc"
#define GET_OP_CLASSES
#include "TestOps.cpp.inc"