Files
clang-p2996/mlir/test/lib/Dialect/GPU/TestGpuMemoryPromotion.cpp
River Riddle 5e50dd048e [mlir] Rework the implementation of TypeID
This commit restructures how TypeID is implemented to ideally avoid
the current problems related to shared libraries. This is done by changing
the "implicit" fallback path to use the name of the type, instead of using
a static template variable (which breaks shared libraries). The major downside to this
is that it adds some additional initialization costs for the implicit path. Given the
use of type names for uniqueness in the fallback, we also no longer allow types
defined in anonymous namespaces to have an implicit TypeID. To simplify defining
an ID for these classes, a new `MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID` macro
was added to allow for explicitly defining a TypeID directly on an internal class.

To help identify when types are using the fallback, `-debug-only=typeid` can be
used to log which types are using implicit ids.

This change generally only requires changes to the test passes, which are all defined
in anonymous namespaces, and thus can't use the fallback any longer.

Differential Revision: https://reviews.llvm.org/D122775
2022-04-04 13:52:26 -07:00

58 lines
2.2 KiB
C++

//===- TestGPUMemoryPromotionPass.cpp - Test pass for GPU promotion -------===//
//
// 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 implements the pass testing the utilities for moving data across
// different levels of the GPU memory hierarchy.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/Affine/IR/AffineOps.h"
#include "mlir/Dialect/GPU/GPUDialect.h"
#include "mlir/Dialect/GPU/MemoryPromotion.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/Dialect/SCF/SCF.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/IR/Attributes.h"
#include "mlir/Pass/Pass.h"
using namespace mlir;
namespace {
/// Simple pass for testing the promotion to workgroup memory in GPU functions.
/// Promotes all arguments with "gpu.test_promote_workgroup" attribute. This
/// does not check whether the promotion is legal (e.g., amount of memory used)
/// or beneficial (e.g., makes previously uncoalesced loads coalesced).
struct TestGpuMemoryPromotionPass
: public PassWrapper<TestGpuMemoryPromotionPass,
OperationPass<gpu::GPUFuncOp>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestGpuMemoryPromotionPass)
void getDependentDialects(DialectRegistry &registry) const override {
registry.insert<AffineDialect, memref::MemRefDialect, scf::SCFDialect>();
}
StringRef getArgument() const final { return "test-gpu-memory-promotion"; }
StringRef getDescription() const final {
return "Promotes the annotated arguments of gpu.func to workgroup memory.";
}
void runOnOperation() override {
gpu::GPUFuncOp op = getOperation();
for (unsigned i = 0, e = op.getNumArguments(); i < e; ++i) {
if (op.getArgAttrOfType<UnitAttr>(i, "gpu.test_promote_workgroup"))
promoteToWorkgroupMemory(op, i);
}
}
};
} // namespace
namespace mlir {
void registerTestGpuMemoryPromotionPass() {
PassRegistration<TestGpuMemoryPromotionPass>();
}
} // namespace mlir