58 lines
2.2 KiB
C++
58 lines
2.2 KiB
C++
//===- TestGPUMemoryPromotionPass.cpp - Test pass for GPU promotion -------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the pass testing the utilities for moving data across
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// different levels of the GPU memory hierarchy.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/Affine/IR/AffineOps.h"
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#include "mlir/Dialect/GPU/IR/GPUDialect.h"
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#include "mlir/Dialect/GPU/Transforms/MemoryPromotion.h"
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#include "mlir/Dialect/MemRef/IR/MemRef.h"
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#include "mlir/Dialect/SCF/IR/SCF.h"
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#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
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#include "mlir/IR/Attributes.h"
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#include "mlir/Pass/Pass.h"
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using namespace mlir;
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namespace {
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/// Simple pass for testing the promotion to workgroup memory in GPU functions.
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/// Promotes all arguments with "gpu.test_promote_workgroup" attribute. This
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/// does not check whether the promotion is legal (e.g., amount of memory used)
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/// or beneficial (e.g., makes previously uncoalesced loads coalesced).
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struct TestGpuMemoryPromotionPass
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: public PassWrapper<TestGpuMemoryPromotionPass,
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OperationPass<gpu::GPUFuncOp>> {
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MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestGpuMemoryPromotionPass)
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry.insert<AffineDialect, memref::MemRefDialect, scf::SCFDialect>();
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}
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StringRef getArgument() const final { return "test-gpu-memory-promotion"; }
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StringRef getDescription() const final {
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return "Promotes the annotated arguments of gpu.func to workgroup memory.";
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}
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void runOnOperation() override {
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gpu::GPUFuncOp op = getOperation();
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for (unsigned i = 0, e = op.getNumArguments(); i < e; ++i) {
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if (op.getArgAttrOfType<UnitAttr>(i, "gpu.test_promote_workgroup"))
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promoteToWorkgroupMemory(op, i);
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}
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}
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};
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} // namespace
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namespace mlir {
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void registerTestGpuMemoryPromotionPass() {
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PassRegistration<TestGpuMemoryPromotionPass>();
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}
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} // namespace mlir
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