cfb72fd3a0
Following https://llvm.discourse.group/t/psa-ods-generated-accessors-will-change-to-have-a-get-prefix-update-you-apis/4476, this follows flipping these dialects to _Both prefixed form. This changes the accessors to have a prefix. This was possibly mostly without breaking breaking changes if the existing convenience methods were used. (https://github.com/jpienaar/llvm-project/blob/main/clang-tools-extra/clang-tidy/misc/AddGetterCheck.cpp was used to migrate the callers post flipping, using the output from Operator.cpp) Differential Revision: https://reviews.llvm.org/D112383
84 lines
2.8 KiB
C++
84 lines
2.8 KiB
C++
//===- ShapeToShapeLowering.cpp - Prepare for lowering to Standard --------===//
|
|
//
|
|
// 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 "PassDetail.h"
|
|
#include "mlir/Dialect/Arithmetic/IR/Arithmetic.h"
|
|
#include "mlir/Dialect/Shape/IR/Shape.h"
|
|
#include "mlir/Dialect/Shape/Transforms/Passes.h"
|
|
#include "mlir/Dialect/StandardOps/IR/Ops.h"
|
|
#include "mlir/IR/Builders.h"
|
|
#include "mlir/IR/PatternMatch.h"
|
|
#include "mlir/Pass/Pass.h"
|
|
#include "mlir/Transforms/DialectConversion.h"
|
|
|
|
using namespace mlir;
|
|
using namespace mlir::shape;
|
|
|
|
namespace {
|
|
/// Converts `shape.num_elements` to `shape.reduce`.
|
|
struct NumElementsOpConverter : public OpRewritePattern<NumElementsOp> {
|
|
public:
|
|
using OpRewritePattern::OpRewritePattern;
|
|
|
|
LogicalResult matchAndRewrite(NumElementsOp op,
|
|
PatternRewriter &rewriter) const final;
|
|
};
|
|
} // namespace
|
|
|
|
LogicalResult
|
|
NumElementsOpConverter::matchAndRewrite(NumElementsOp op,
|
|
PatternRewriter &rewriter) const {
|
|
auto loc = op.getLoc();
|
|
Type valueType = op.getResult().getType();
|
|
Value init = op->getDialect()
|
|
->materializeConstant(rewriter, rewriter.getIndexAttr(1),
|
|
valueType, loc)
|
|
->getResult(0);
|
|
ReduceOp reduce = rewriter.create<ReduceOp>(loc, op.getShape(), init);
|
|
|
|
// Generate reduce operator.
|
|
Block *body = reduce.getBody();
|
|
OpBuilder b = OpBuilder::atBlockEnd(body);
|
|
Value product = b.create<MulOp>(loc, valueType, body->getArgument(1),
|
|
body->getArgument(2));
|
|
b.create<shape::YieldOp>(loc, product);
|
|
|
|
rewriter.replaceOp(op, reduce.getResult());
|
|
return success();
|
|
}
|
|
|
|
namespace {
|
|
struct ShapeToShapeLowering
|
|
: public ShapeToShapeLoweringBase<ShapeToShapeLowering> {
|
|
void runOnFunction() override;
|
|
};
|
|
} // namespace
|
|
|
|
void ShapeToShapeLowering::runOnFunction() {
|
|
MLIRContext &ctx = getContext();
|
|
|
|
RewritePatternSet patterns(&ctx);
|
|
populateShapeRewritePatterns(patterns);
|
|
|
|
ConversionTarget target(getContext());
|
|
target.addLegalDialect<arith::ArithmeticDialect, ShapeDialect,
|
|
StandardOpsDialect>();
|
|
target.addIllegalOp<NumElementsOp>();
|
|
if (failed(mlir::applyPartialConversion(getFunction(), target,
|
|
std::move(patterns))))
|
|
signalPassFailure();
|
|
}
|
|
|
|
void mlir::populateShapeRewritePatterns(RewritePatternSet &patterns) {
|
|
patterns.add<NumElementsOpConverter>(patterns.getContext());
|
|
}
|
|
|
|
std::unique_ptr<Pass> mlir::createShapeToShapeLowering() {
|
|
return std::make_unique<ShapeToShapeLowering>();
|
|
}
|