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305516fcd3
This will allow for naming values the same as existing SSA values for regions attached to operations that are isolated from above. This fits in with how the system already allows separate name scopes for sibling regions. This name shadowing can be enabled in the custom parser of operations by setting the 'enableNameShadowing' flag to true when calling 'parseRegion'.
%arg = constant 10 : i32
foo.op {
%arg = constant 10 : i32
}
PiperOrigin-RevId: 264255999
99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
//===- TestDialect.cpp - MLIR Dialect for Testing -------------------------===//
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//
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// Copyright 2019 The MLIR Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// =============================================================================
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#include "TestDialect.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/IR/TypeUtilities.h"
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using namespace mlir;
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//===----------------------------------------------------------------------===//
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// TestDialect
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//===----------------------------------------------------------------------===//
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TestDialect::TestDialect(MLIRContext *context)
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: Dialect(getDialectName(), context) {
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addOperations<
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#define GET_OP_LIST
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#include "TestOps.cpp.inc"
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>();
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allowUnknownOperations();
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}
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//===----------------------------------------------------------------------===//
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// Test IsolatedRegionOp - parse passthrough region arguments.
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//===----------------------------------------------------------------------===//
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static ParseResult parseIsolatedRegionOp(OpAsmParser *parser,
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OperationState *result) {
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OpAsmParser::OperandType argInfo;
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Type argType = parser->getBuilder().getIndexType();
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// Parse the input operand.
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if (parser->parseOperand(argInfo) ||
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parser->resolveOperand(argInfo, argType, result->operands))
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return failure();
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// Parse the body region, and reuse the operand info as the argument info.
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Region *body = result->addRegion();
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return parser->parseRegion(*body, argInfo, argType,
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/*enableNameShadowing=*/true);
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}
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//===----------------------------------------------------------------------===//
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// Test PolyForOp - parse list of region arguments.
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//===----------------------------------------------------------------------===//
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static ParseResult parsePolyForOp(OpAsmParser *parser, OperationState *result) {
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SmallVector<OpAsmParser::OperandType, 4> ivsInfo;
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// Parse list of region arguments without a delimiter.
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if (parser->parseRegionArgumentList(ivsInfo))
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return failure();
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// Parse the body region.
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Region *body = result->addRegion();
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auto &builder = parser->getBuilder();
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SmallVector<Type, 4> argTypes(ivsInfo.size(), builder.getIndexType());
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return parser->parseRegion(*body, ivsInfo, argTypes);
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}
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//===----------------------------------------------------------------------===//
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// Test removing op with inner ops.
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//===----------------------------------------------------------------------===//
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namespace {
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struct TestRemoveOpWithInnerOps : public OpRewritePattern<TestOpWithRegion> {
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using OpRewritePattern<TestOpWithRegion>::OpRewritePattern;
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PatternMatchResult matchAndRewrite(TestOpWithRegion op,
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PatternRewriter &rewriter) const override {
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rewriter.replaceOp(op, llvm::None);
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return matchSuccess();
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}
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};
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} // end anonymous namespace
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void TestOpWithRegion::getCanonicalizationPatterns(
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OwningRewritePatternList &results, MLIRContext *context) {
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results.insert<TestRemoveOpWithInnerOps>(context);
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}
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// Static initialization for Test dialect registration.
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static mlir::DialectRegistration<mlir::TestDialect> testDialect;
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#define GET_OP_CLASSES
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#include "TestOps.cpp.inc"
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