1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
//===- SerializeROCDLTarget.cpp ---------------------------------*- C++ -*-===//
//
// This file is licensed 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
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/GPU/IR/GPUDialect.h"
#include "mlir/Dialect/LLVMIR/ROCDLDialect.h"
#include "mlir/IR/MLIRContext.h"
#include "mlir/InitAllDialects.h"
#include "mlir/Parser/Parser.h"
#include "mlir/Target/LLVM/ROCDL/Target.h"
#include "mlir/Target/LLVM/ROCDL/Utils.h"
#include "mlir/Target/LLVMIR/Dialect/Builtin/BuiltinToLLVMIRTranslation.h"
#include "mlir/Target/LLVMIR/Dialect/GPU/GPUToLLVMIRTranslation.h"
#include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.h"
#include "mlir/Target/LLVMIR/Dialect/ROCDL/ROCDLToLLVMIRTranslation.h"
#include "llvm/IRReader/IRReader.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBufferRef.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Host.h"
#include "gmock/gmock.h"
using namespace mlir;
// Skip the test if the AMDGPU target was not built.
#if MLIR_ENABLE_ROCM_CONVERSIONS
#define SKIP_WITHOUT_AMDGPU(x) x
#else
#define SKIP_WITHOUT_AMDGPU(x) DISABLED_##x
#endif
class MLIRTargetLLVMROCDL : public ::testing::Test {
protected:
void SetUp() override {
registerBuiltinDialectTranslation(registry);
registerLLVMDialectTranslation(registry);
registerGPUDialectTranslation(registry);
registerROCDLDialectTranslation(registry);
ROCDL::registerROCDLTargetInterfaceExternalModels(registry);
}
// Checks if a ROCm installation is available.
bool hasROCMTools() {
StringRef rocmPath = ROCDL::getROCMPath();
if (rocmPath.empty())
return false;
llvm::SmallString<128> lldPath(rocmPath);
llvm::sys::path::append(lldPath, "llvm", "bin", "ld.lld");
return llvm::sys::fs::can_execute(lldPath);
}
// Dialect registry.
DialectRegistry registry;
// MLIR module used for the tests.
const std::string moduleStr = R"mlir(
gpu.module @rocdl_test {
llvm.func @rocdl_kernel(%arg0: f32) attributes {gpu.kernel, rocdl.kernel} {
llvm.return
}
})mlir";
};
// Test ROCDL serialization to LLVM.
TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(SerializeROCDLMToLLVM)) {
MLIRContext context(registry);
OwningOpRef<ModuleOp> module =
parseSourceString<ModuleOp>(moduleStr, &context);
ASSERT_TRUE(!!module);
// Create a ROCDL target.
ROCDL::ROCDLTargetAttr target = ROCDL::ROCDLTargetAttr::get(&context);
// Serialize the module.
auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
ASSERT_TRUE(!!serializer);
gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Offload);
for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
std::optional<SmallVector<char, 0>> object =
serializer.serializeToObject(gpuModule, options);
// Check that the serializer was successful.
ASSERT_TRUE(object != std::nullopt);
ASSERT_TRUE(!object->empty());
// Read the serialized module.
llvm::MemoryBufferRef buffer(StringRef(object->data(), object->size()),
"module");
llvm::LLVMContext llvmContext;
llvm::Expected<std::unique_ptr<llvm::Module>> llvmModule =
llvm::getLazyBitcodeModule(buffer, llvmContext);
ASSERT_TRUE(!!llvmModule);
ASSERT_TRUE(!!*llvmModule);
// Check that it has a function named `foo`.
ASSERT_TRUE((*llvmModule)->getFunction("rocdl_kernel") != nullptr);
}
}
// Test ROCDL serialization to PTX.
TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(SerializeROCDLToPTX)) {
MLIRContext context(registry);
OwningOpRef<ModuleOp> module =
parseSourceString<ModuleOp>(moduleStr, &context);
ASSERT_TRUE(!!module);
// Create a ROCDL target.
ROCDL::ROCDLTargetAttr target = ROCDL::ROCDLTargetAttr::get(&context);
// Serialize the module.
auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
ASSERT_TRUE(!!serializer);
gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Assembly);
for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
std::optional<SmallVector<char, 0>> object =
serializer.serializeToObject(gpuModule, options);
// Check that the serializer was successful.
ASSERT_TRUE(object != std::nullopt);
ASSERT_TRUE(!object->empty());
ASSERT_TRUE(
StringRef(object->data(), object->size()).contains("rocdl_kernel"));
}
}
// Test ROCDL serialization to Binary.
TEST_F(MLIRTargetLLVMROCDL, SKIP_WITHOUT_AMDGPU(SerializeROCDLToBinary)) {
if (!hasROCMTools())
GTEST_SKIP() << "ROCm installation not found, skipping test.";
MLIRContext context(registry);
OwningOpRef<ModuleOp> module =
parseSourceString<ModuleOp>(moduleStr, &context);
ASSERT_TRUE(!!module);
// Create a ROCDL target.
ROCDL::ROCDLTargetAttr target = ROCDL::ROCDLTargetAttr::get(&context);
// Serialize the module.
auto serializer = dyn_cast<gpu::TargetAttrInterface>(target);
ASSERT_TRUE(!!serializer);
gpu::TargetOptions options("", {}, "", gpu::CompilationTarget::Binary);
for (auto gpuModule : (*module).getBody()->getOps<gpu::GPUModuleOp>()) {
std::optional<SmallVector<char, 0>> object =
serializer.serializeToObject(gpuModule, options);
// Check that the serializer was successful.
ASSERT_TRUE(object != std::nullopt);
ASSERT_FALSE(object->empty());
}
}
|
