1 //===- TestAllReduceLowering.cpp - Test gpu.all_reduce lowering -----------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file contains test passes for lowering the gpu.all_reduce op.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "mlir/Dialect/Arithmetic/IR/Arithmetic.h"
14 #include "mlir/Dialect/GPU/Passes.h"
15 #include "mlir/Dialect/MemRef/IR/MemRef.h"
16 #include "mlir/Dialect/StandardOps/IR/Ops.h"
17 #include "mlir/Pass/Pass.h"
18 #include "mlir/Transforms/GreedyPatternRewriteDriver.h"
19 
20 using namespace mlir;
21 
22 namespace {
23 struct TestGpuRewritePass
24     : public PassWrapper<TestGpuRewritePass, OperationPass<ModuleOp>> {
25   void getDependentDialects(DialectRegistry &registry) const override {
26     registry.insert<arith::ArithmeticDialect, StandardOpsDialect,
27                     memref::MemRefDialect>();
28   }
29   StringRef getArgument() const final { return "test-gpu-rewrite"; }
30   StringRef getDescription() const final {
31     return "Applies all rewrite patterns within the GPU dialect.";
32   }
33   void runOnOperation() override {
34     RewritePatternSet patterns(&getContext());
35     populateGpuRewritePatterns(patterns);
36     (void)applyPatternsAndFoldGreedily(getOperation(), std::move(patterns));
37   }
38 };
39 } // namespace
40 
41 namespace mlir {
42 void registerTestAllReduceLoweringPass() {
43   PassRegistration<TestGpuRewritePass>();
44 }
45 } // namespace mlir
46