llvm-project/mlir/test/lib/Transforms/TestGpuRewrite.cpp
River Riddle b6eb26fd0e [mlir][NFC] Move around the code related to PatternRewriting to improve layering
There are several pieces of pattern rewriting infra in IR/ that really shouldn't be there. This revision moves those pieces to a better location such that they are easier to evolve in the future(e.g. with PDL). More concretely this revision does the following:

* Create a Transforms/GreedyPatternRewriteDriver.h and move the apply*andFold methods there.
The definitions for these methods are already in Transforms/ so it doesn't make sense for the declarations to be in IR.

* Create a new lib/Rewrite library and move PatternApplicator there.
This new library will be focused on applying rewrites, and will also include compiling rewrites with PDL.

Differential Revision: https://reviews.llvm.org/D89103
2020-10-26 18:01:06 -07:00

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//===- TestAllReduceLowering.cpp - Test gpu.all_reduce lowering -----------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file contains test passes for lowering the gpu.all_reduce op.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/GPU/Passes.h"
#include "mlir/Dialect/StandardOps/IR/Ops.h"
#include "mlir/Pass/Pass.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
using namespace mlir;
namespace {
struct TestGpuRewritePass
: public PassWrapper<TestGpuRewritePass, OperationPass<ModuleOp>> {
void getDependentDialects(DialectRegistry &registry) const override {
registry.insert<StandardOpsDialect>();
}
void runOnOperation() override {
OwningRewritePatternList patterns;
populateGpuRewritePatterns(&getContext(), patterns);
applyPatternsAndFoldGreedily(getOperation(), patterns);
}
};
} // namespace
namespace mlir {
void registerTestAllReduceLoweringPass() {
PassRegistration<TestGpuRewritePass> pass(
"test-gpu-rewrite",
"Applies all rewrite patterns within the GPU dialect.");
}
} // namespace mlir