1 //===- TestAvailability.cpp - Test pass for setting Entry point ABI info --===//
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 implements a pass that sets the spv.entry_point_abi attribute on
10 // functions that are to be lowered as entry point functions.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "mlir/Dialect/GPU/IR/GPUDialect.h"
15 #include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
16 #include "mlir/Dialect/SPIRV/IR/TargetAndABI.h"
17 #include "mlir/Pass/Pass.h"
18
19 using namespace mlir;
20
21 namespace {
22 /// Pass to set the spv.entry_point_abi
23 struct TestSpirvEntryPointABIPass
24 : public PassWrapper<TestSpirvEntryPointABIPass,
25 OperationPass<gpu::GPUModuleOp>> {
MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID__anon327eeb180111::TestSpirvEntryPointABIPass26 MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestSpirvEntryPointABIPass)
27
28 StringRef getArgument() const final { return "test-spirv-entry-point-abi"; }
getDescription__anon327eeb180111::TestSpirvEntryPointABIPass29 StringRef getDescription() const final {
30 return "Set the spv.entry_point_abi attribute on GPU kernel function "
31 "within the "
32 "module, intended for testing only";
33 }
getDependentDialects__anon327eeb180111::TestSpirvEntryPointABIPass34 void getDependentDialects(DialectRegistry ®istry) const override {
35 registry.insert<spirv::SPIRVDialect>();
36 }
37 TestSpirvEntryPointABIPass() = default;
TestSpirvEntryPointABIPass__anon327eeb180111::TestSpirvEntryPointABIPass38 TestSpirvEntryPointABIPass(const TestSpirvEntryPointABIPass &) {}
39 void runOnOperation() override;
40
41 private:
42 Pass::ListOption<int32_t> workgroupSize{
43 *this, "workgroup-size",
44 llvm::cl::desc(
45 "Workgroup size to use for all gpu.func kernels in the module, "
46 "specified with x-dimension first, y-dimension next and z-dimension "
47 "last. Unspecified dimensions will be set to 1")};
48 };
49 } // namespace
50
runOnOperation()51 void TestSpirvEntryPointABIPass::runOnOperation() {
52 gpu::GPUModuleOp gpuModule = getOperation();
53 MLIRContext *context = &getContext();
54 StringRef attrName = spirv::getEntryPointABIAttrName();
55 for (gpu::GPUFuncOp gpuFunc : gpuModule.getOps<gpu::GPUFuncOp>()) {
56 if (!gpu::GPUDialect::isKernel(gpuFunc) || gpuFunc->getAttr(attrName))
57 continue;
58 SmallVector<int32_t, 3> workgroupSizeVec(workgroupSize.begin(),
59 workgroupSize.end());
60 workgroupSizeVec.resize(3, 1);
61 gpuFunc->setAttr(attrName,
62 spirv::getEntryPointABIAttr(workgroupSizeVec, context));
63 }
64 }
65
66 namespace mlir {
registerTestSpirvEntryPointABIPass()67 void registerTestSpirvEntryPointABIPass() {
68 PassRegistration<TestSpirvEntryPointABIPass>();
69 }
70 } // namespace mlir
71