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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
//===- OpenMPToLLVM.cpp - conversion from OpenMP to LLVM dialect ----------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "mlir/Conversion/OpenMPToLLVM/ConvertOpenMPToLLVM.h"
#include "mlir/Conversion/ArithToLLVM/ArithToLLVM.h"
#include "mlir/Conversion/ControlFlowToLLVM/ControlFlowToLLVM.h"
#include "mlir/Conversion/FuncToLLVM/ConvertFuncToLLVM.h"
#include "mlir/Conversion/FuncToLLVM/ConvertFuncToLLVMPass.h"
#include "mlir/Conversion/LLVMCommon/ConversionTarget.h"
#include "mlir/Conversion/LLVMCommon/Pattern.h"
#include "mlir/Conversion/MemRefToLLVM/MemRefToLLVM.h"
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "mlir/Dialect/OpenMP/OpenMPDialect.h"
#include "mlir/Pass/Pass.h"
namespace mlir {
#define GEN_PASS_DEF_CONVERTOPENMPTOLLVMPASS
#include "mlir/Conversion/Passes.h.inc"
} // namespace mlir
using namespace mlir;
namespace {
/// A pattern that converts the region arguments in a single-region OpenMP
/// operation to the LLVM dialect. The body of the region is not modified and is
/// expected to either be processed by the conversion infrastructure or already
/// contain ops compatible with LLVM dialect types.
template <typename OpType>
struct RegionOpConversion : public ConvertOpToLLVMPattern<OpType> {
using ConvertOpToLLVMPattern<OpType>::ConvertOpToLLVMPattern;
LogicalResult
matchAndRewrite(OpType curOp, typename OpType::Adaptor adaptor,
ConversionPatternRewriter &rewriter) const override {
auto newOp = rewriter.create<OpType>(
curOp.getLoc(), TypeRange(), adaptor.getOperands(), curOp->getAttrs());
rewriter.inlineRegionBefore(curOp.getRegion(), newOp.getRegion(),
newOp.getRegion().end());
if (failed(rewriter.convertRegionTypes(&newOp.getRegion(),
*this->getTypeConverter())))
return failure();
rewriter.eraseOp(curOp);
return success();
}
};
template <typename T>
struct RegionLessOpWithVarOperandsConversion
: public ConvertOpToLLVMPattern<T> {
using ConvertOpToLLVMPattern<T>::ConvertOpToLLVMPattern;
LogicalResult
matchAndRewrite(T curOp, typename T::Adaptor adaptor,
ConversionPatternRewriter &rewriter) const override {
TypeConverter *converter = ConvertToLLVMPattern::getTypeConverter();
SmallVector<Type> resTypes;
if (failed(converter->convertTypes(curOp->getResultTypes(), resTypes)))
return failure();
SmallVector<Value> convertedOperands;
assert(curOp.getNumVariableOperands() ==
curOp.getOperation()->getNumOperands() &&
"unexpected non-variable operands");
for (unsigned idx = 0; idx < curOp.getNumVariableOperands(); ++idx) {
Value originalVariableOperand = curOp.getVariableOperand(idx);
if (!originalVariableOperand)
return failure();
if (isa<MemRefType>(originalVariableOperand.getType())) {
// TODO: Support memref type in variable operands
return rewriter.notifyMatchFailure(curOp,
"memref is not supported yet");
}
convertedOperands.emplace_back(adaptor.getOperands()[idx]);
}
rewriter.replaceOpWithNewOp<T>(curOp, resTypes, convertedOperands,
curOp->getAttrs());
return success();
}
};
template <typename T>
struct RegionOpWithVarOperandsConversion : public ConvertOpToLLVMPattern<T> {
using ConvertOpToLLVMPattern<T>::ConvertOpToLLVMPattern;
LogicalResult
matchAndRewrite(T curOp, typename T::Adaptor adaptor,
ConversionPatternRewriter &rewriter) const override {
TypeConverter *converter = ConvertToLLVMPattern::getTypeConverter();
SmallVector<Type> resTypes;
if (failed(converter->convertTypes(curOp->getResultTypes(), resTypes)))
return failure();
SmallVector<Value> convertedOperands;
assert(curOp.getNumVariableOperands() ==
curOp.getOperation()->getNumOperands() &&
"unexpected non-variable operands");
for (unsigned idx = 0; idx < curOp.getNumVariableOperands(); ++idx) {
Value originalVariableOperand = curOp.getVariableOperand(idx);
if (!originalVariableOperand)
return failure();
if (isa<MemRefType>(originalVariableOperand.getType())) {
// TODO: Support memref type in variable operands
return rewriter.notifyMatchFailure(curOp,
"memref is not supported yet");
}
convertedOperands.emplace_back(adaptor.getOperands()[idx]);
}
auto newOp = rewriter.create<T>(curOp.getLoc(), resTypes, convertedOperands,
curOp->getAttrs());
rewriter.inlineRegionBefore(curOp.getRegion(), newOp.getRegion(),
newOp.getRegion().end());
if (failed(rewriter.convertRegionTypes(&newOp.getRegion(),
*this->getTypeConverter())))
return failure();
rewriter.eraseOp(curOp);
return success();
}
};
template <typename T>
struct RegionLessOpConversion : public ConvertOpToLLVMPattern<T> {
using ConvertOpToLLVMPattern<T>::ConvertOpToLLVMPattern;
LogicalResult
matchAndRewrite(T curOp, typename T::Adaptor adaptor,
ConversionPatternRewriter &rewriter) const override {
TypeConverter *converter = ConvertToLLVMPattern::getTypeConverter();
SmallVector<Type> resTypes;
if (failed(converter->convertTypes(curOp->getResultTypes(), resTypes)))
return failure();
rewriter.replaceOpWithNewOp<T>(curOp, resTypes, adaptor.getOperands(),
curOp->getAttrs());
return success();
}
};
struct ReductionOpConversion : public ConvertOpToLLVMPattern<omp::ReductionOp> {
using ConvertOpToLLVMPattern<omp::ReductionOp>::ConvertOpToLLVMPattern;
LogicalResult
matchAndRewrite(omp::ReductionOp curOp, OpAdaptor adaptor,
ConversionPatternRewriter &rewriter) const override {
if (isa<MemRefType>(curOp.getAccumulator().getType())) {
// TODO: Support memref type in variable operands
return rewriter.notifyMatchFailure(curOp, "memref is not supported yet");
}
rewriter.replaceOpWithNewOp<omp::ReductionOp>(
curOp, TypeRange(), adaptor.getOperands(), curOp->getAttrs());
return success();
}
};
struct ReductionDeclareOpConversion
: public ConvertOpToLLVMPattern<omp::ReductionDeclareOp> {
using ConvertOpToLLVMPattern<omp::ReductionDeclareOp>::ConvertOpToLLVMPattern;
LogicalResult
matchAndRewrite(omp::ReductionDeclareOp curOp, OpAdaptor adaptor,
ConversionPatternRewriter &rewriter) const override {
auto newOp = rewriter.create<omp::ReductionDeclareOp>(
curOp.getLoc(), TypeRange(), curOp.getSymNameAttr(),
TypeAttr::get(this->getTypeConverter()->convertType(
curOp.getTypeAttr().getValue())));
for (unsigned idx = 0; idx < curOp.getNumRegions(); idx++) {
rewriter.inlineRegionBefore(curOp.getRegion(idx), newOp.getRegion(idx),
newOp.getRegion(idx).end());
if (failed(rewriter.convertRegionTypes(&newOp.getRegion(idx),
*this->getTypeConverter())))
return failure();
}
rewriter.eraseOp(curOp);
return success();
}
};
} // namespace
void mlir::configureOpenMPToLLVMConversionLegality(
ConversionTarget &target, LLVMTypeConverter &typeConverter) {
target.addDynamicallyLegalOp<
mlir::omp::AtomicUpdateOp, mlir::omp::CriticalOp, mlir::omp::TargetOp,
mlir::omp::DataOp, mlir::omp::ParallelOp, mlir::omp::WsLoopOp,
mlir::omp::SimdLoopOp, mlir::omp::MasterOp, mlir::omp::SectionOp,
mlir::omp::SectionsOp, mlir::omp::SingleOp, mlir::omp::TaskGroupOp,
mlir::omp::TaskOp>([&](Operation *op) {
return typeConverter.isLegal(&op->getRegion(0)) &&
typeConverter.isLegal(op->getOperandTypes()) &&
typeConverter.isLegal(op->getResultTypes());
});
target.addDynamicallyLegalOp<mlir::omp::AtomicReadOp,
mlir::omp::AtomicWriteOp, mlir::omp::FlushOp,
mlir::omp::ThreadprivateOp, mlir::omp::YieldOp,
mlir::omp::EnterDataOp, mlir::omp::ExitDataOp>(
[&](Operation *op) {
return typeConverter.isLegal(op->getOperandTypes()) &&
typeConverter.isLegal(op->getResultTypes());
});
target.addDynamicallyLegalOp<mlir::omp::ReductionOp>([&](Operation *op) {
return typeConverter.isLegal(op->getOperandTypes());
});
target.addDynamicallyLegalOp<mlir::omp::ReductionDeclareOp>(
[&](Operation *op) {
return typeConverter.isLegal(&op->getRegion(0)) &&
typeConverter.isLegal(&op->getRegion(1)) &&
typeConverter.isLegal(&op->getRegion(2)) &&
typeConverter.isLegal(op->getOperandTypes()) &&
typeConverter.isLegal(op->getResultTypes());
});
}
void mlir::populateOpenMPToLLVMConversionPatterns(LLVMTypeConverter &converter,
RewritePatternSet &patterns) {
patterns.add<
ReductionOpConversion, ReductionDeclareOpConversion,
RegionOpConversion<omp::CriticalOp>, RegionOpConversion<omp::MasterOp>,
ReductionOpConversion, RegionOpConversion<omp::ParallelOp>,
RegionOpConversion<omp::WsLoopOp>, RegionOpConversion<omp::SectionsOp>,
RegionOpConversion<omp::SectionOp>, RegionOpConversion<omp::SimdLoopOp>,
RegionOpConversion<omp::SingleOp>, RegionOpConversion<omp::TaskGroupOp>,
RegionOpConversion<omp::TaskOp>, RegionOpConversion<omp::DataOp>,
RegionOpConversion<omp::TargetOp>,
RegionLessOpWithVarOperandsConversion<omp::AtomicReadOp>,
RegionLessOpWithVarOperandsConversion<omp::AtomicWriteOp>,
RegionOpWithVarOperandsConversion<omp::AtomicUpdateOp>,
RegionLessOpWithVarOperandsConversion<omp::FlushOp>,
RegionLessOpWithVarOperandsConversion<omp::ThreadprivateOp>,
RegionLessOpConversion<omp::YieldOp>,
RegionLessOpConversion<omp::EnterDataOp>,
RegionLessOpConversion<omp::ExitDataOp>>(converter);
}
namespace {
struct ConvertOpenMPToLLVMPass
: public impl::ConvertOpenMPToLLVMPassBase<ConvertOpenMPToLLVMPass> {
using Base::Base;
void runOnOperation() override;
};
} // namespace
void ConvertOpenMPToLLVMPass::runOnOperation() {
auto module = getOperation();
// Convert to OpenMP operations with LLVM IR dialect
RewritePatternSet patterns(&getContext());
LLVMTypeConverter converter(&getContext());
arith::populateArithToLLVMConversionPatterns(converter, patterns);
cf::populateControlFlowToLLVMConversionPatterns(converter, patterns);
populateFinalizeMemRefToLLVMConversionPatterns(converter, patterns);
populateFuncToLLVMConversionPatterns(converter, patterns);
populateOpenMPToLLVMConversionPatterns(converter, patterns);
LLVMConversionTarget target(getContext());
target.addLegalOp<omp::TerminatorOp, omp::TaskyieldOp, omp::FlushOp,
omp::BarrierOp, omp::TaskwaitOp>();
configureOpenMPToLLVMConversionLegality(target, converter);
if (failed(applyPartialConversion(module, target, std::move(patterns))))
signalPassFailure();
}
|
