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
|
//===- AutomapToTargetData.cpp -------------------------------------------===//
//
// 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 "flang/Optimizer/Builder/DirectivesCommon.h"
#include "flang/Optimizer/Builder/FIRBuilder.h"
#include "flang/Optimizer/Builder/HLFIRTools.h"
#include "flang/Optimizer/Dialect/FIROps.h"
#include "flang/Optimizer/Dialect/FIRType.h"
#include "flang/Optimizer/Dialect/Support/KindMapping.h"
#include "flang/Optimizer/HLFIR/HLFIROps.h"
#include "mlir/Dialect/OpenMP/OpenMPDialect.h"
#include "mlir/Dialect/OpenMP/OpenMPInterfaces.h"
#include "mlir/IR/BuiltinAttributes.h"
#include "mlir/IR/Operation.h"
#include "mlir/Pass/Pass.h"
#include "llvm/Frontend/OpenMP/OMPConstants.h"
namespace flangomp {
#define GEN_PASS_DEF_AUTOMAPTOTARGETDATAPASS
#include "flang/Optimizer/OpenMP/Passes.h.inc"
} // namespace flangomp
using namespace mlir;
namespace {
class AutomapToTargetDataPass
: public flangomp::impl::AutomapToTargetDataPassBase<
AutomapToTargetDataPass> {
// Returns true if the variable has a dynamic size and therefore requires
// bounds operations to describe its extents.
inline bool needsBoundsOps(mlir::Value var) {
assert(mlir::isa<mlir::omp::PointerLikeType>(var.getType()) &&
"only pointer like types expected");
mlir::Type t = fir::unwrapRefType(var.getType());
if (mlir::Type inner = fir::dyn_cast_ptrOrBoxEleTy(t))
return fir::hasDynamicSize(inner);
return fir::hasDynamicSize(t);
}
// Generate MapBoundsOp operations for the variable if required.
inline void genBoundsOps(fir::FirOpBuilder &builder, mlir::Value var,
llvm::SmallVectorImpl<mlir::Value> &boundsOps) {
mlir::Location loc = var.getLoc();
fir::factory::AddrAndBoundsInfo info =
fir::factory::getDataOperandBaseAddr(builder, var,
/*isOptional=*/false, loc);
fir::ExtendedValue exv =
hlfir::translateToExtendedValue(loc, builder, hlfir::Entity{info.addr},
/*contiguousHint=*/true)
.first;
llvm::SmallVector<mlir::Value> tmp =
fir::factory::genImplicitBoundsOps<mlir::omp::MapBoundsOp,
mlir::omp::MapBoundsType>(
builder, info, exv, /*dataExvIsAssumedSize=*/false, loc);
llvm::append_range(boundsOps, tmp);
}
void findRelatedAllocmemFreemem(fir::AddrOfOp addressOfOp,
llvm::DenseSet<fir::StoreOp> &allocmems,
llvm::DenseSet<fir::LoadOp> &freemems) {
assert(addressOfOp->hasOneUse() && "op must have single use");
auto declaredRef =
cast<hlfir::DeclareOp>(*addressOfOp->getUsers().begin())->getResult(0);
for (Operation *refUser : declaredRef.getUsers()) {
if (auto storeOp = dyn_cast<fir::StoreOp>(refUser))
if (auto emboxOp = storeOp.getValue().getDefiningOp<fir::EmboxOp>())
if (auto allocmemOp =
emboxOp.getOperand(0).getDefiningOp<fir::AllocMemOp>())
allocmems.insert(storeOp);
if (auto loadOp = dyn_cast<fir::LoadOp>(refUser))
for (Operation *loadUser : loadOp.getResult().getUsers())
if (auto boxAddrOp = dyn_cast<fir::BoxAddrOp>(loadUser))
for (Operation *boxAddrUser : boxAddrOp.getResult().getUsers())
if (auto freememOp = dyn_cast<fir::FreeMemOp>(boxAddrUser))
freemems.insert(loadOp);
}
}
void runOnOperation() override {
ModuleOp module = getOperation()->getParentOfType<ModuleOp>();
if (!module)
module = dyn_cast<ModuleOp>(getOperation());
if (!module)
return;
// Build FIR builder for helper utilities.
fir::KindMapping kindMap = fir::getKindMapping(module);
fir::FirOpBuilder builder{module, std::move(kindMap)};
// Collect global variables with AUTOMAP flag.
llvm::DenseSet<fir::GlobalOp> automapGlobals;
module.walk([&](fir::GlobalOp globalOp) {
if (auto iface =
dyn_cast<omp::DeclareTargetInterface>(globalOp.getOperation()))
if (iface.isDeclareTarget() && iface.getDeclareTargetAutomap() &&
iface.getDeclareTargetDeviceType() !=
omp::DeclareTargetDeviceType::host)
automapGlobals.insert(globalOp);
});
auto addMapInfo = [&](auto globalOp, auto memOp) {
builder.setInsertionPointAfter(memOp);
SmallVector<Value> bounds;
if (needsBoundsOps(memOp.getMemref()))
genBoundsOps(builder, memOp.getMemref(), bounds);
omp::TargetEnterExitUpdateDataOperands clauses;
mlir::omp::MapInfoOp mapInfo = mlir::omp::MapInfoOp::create(
builder, memOp.getLoc(), memOp.getMemref().getType(),
memOp.getMemref(),
TypeAttr::get(fir::unwrapRefType(memOp.getMemref().getType())),
builder.getIntegerAttr(
builder.getIntegerType(64, false),
static_cast<unsigned>(
isa<fir::StoreOp>(memOp)
? llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_TO
: llvm::omp::OpenMPOffloadMappingFlags::OMP_MAP_DELETE)),
builder.getAttr<omp::VariableCaptureKindAttr>(
omp::VariableCaptureKind::ByCopy),
/*var_ptr_ptr=*/mlir::Value{},
/*members=*/SmallVector<Value>{},
/*members_index=*/ArrayAttr{}, bounds,
/*mapperId=*/mlir::FlatSymbolRefAttr(), globalOp.getSymNameAttr(),
builder.getBoolAttr(false));
clauses.mapVars.push_back(mapInfo);
isa<fir::StoreOp>(memOp)
? builder.create<omp::TargetEnterDataOp>(memOp.getLoc(), clauses)
: builder.create<omp::TargetExitDataOp>(memOp.getLoc(), clauses);
};
for (fir::GlobalOp globalOp : automapGlobals) {
if (auto uses = globalOp.getSymbolUses(module.getOperation())) {
llvm::DenseSet<fir::StoreOp> allocmemStores;
llvm::DenseSet<fir::LoadOp> freememLoads;
for (auto &x : *uses)
if (auto addrOp = dyn_cast<fir::AddrOfOp>(x.getUser()))
findRelatedAllocmemFreemem(addrOp, allocmemStores, freememLoads);
for (auto storeOp : allocmemStores)
addMapInfo(globalOp, storeOp);
for (auto loadOp : freememLoads)
addMapInfo(globalOp, loadOp);
}
}
}
};
} // namespace
|
