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
|
//===-- runtime/allocatable.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/Runtime/allocatable.h"
#include "assign-impl.h"
#include "derived.h"
#include "stat.h"
#include "terminator.h"
#include "type-info.h"
#include "flang/ISO_Fortran_binding.h"
#include "flang/Runtime/assign.h"
#include "flang/Runtime/descriptor.h"
namespace Fortran::runtime {
extern "C" {
void RTNAME(AllocatableInitIntrinsic)(Descriptor &descriptor,
TypeCategory category, int kind, int rank, int corank) {
INTERNAL_CHECK(corank == 0);
descriptor.Establish(TypeCode{category, kind},
Descriptor::BytesFor(category, kind), nullptr, rank, nullptr,
CFI_attribute_allocatable);
}
void RTNAME(AllocatableInitCharacter)(Descriptor &descriptor,
SubscriptValue length, int kind, int rank, int corank) {
INTERNAL_CHECK(corank == 0);
descriptor.Establish(
kind, length, nullptr, rank, nullptr, CFI_attribute_allocatable);
}
void RTNAME(AllocatableInitDerived)(Descriptor &descriptor,
const typeInfo::DerivedType &derivedType, int rank, int corank) {
INTERNAL_CHECK(corank == 0);
descriptor.Establish(
derivedType, nullptr, rank, nullptr, CFI_attribute_allocatable);
}
void RTNAME(AllocatableInitIntrinsicForAllocate)(Descriptor &descriptor,
TypeCategory category, int kind, int rank, int corank) {
if (descriptor.IsAllocated()) {
return;
}
RTNAME(AllocatableInitIntrinsic)(descriptor, category, kind, rank, corank);
}
void RTNAME(AllocatableInitCharacterForAllocate)(Descriptor &descriptor,
SubscriptValue length, int kind, int rank, int corank) {
if (descriptor.IsAllocated()) {
return;
}
RTNAME(AllocatableInitCharacter)(descriptor, length, kind, rank, corank);
}
void RTNAME(AllocatableInitDerivedForAllocate)(Descriptor &descriptor,
const typeInfo::DerivedType &derivedType, int rank, int corank) {
if (descriptor.IsAllocated()) {
return;
}
RTNAME(AllocatableInitDerived)(descriptor, derivedType, rank, corank);
}
std::int32_t RTNAME(MoveAlloc)(Descriptor &to, Descriptor &from,
const typeInfo::DerivedType *derivedType, bool hasStat,
const Descriptor *errMsg, const char *sourceFile, int sourceLine) {
Terminator terminator{sourceFile, sourceLine};
// If to and from are the same allocatable they must not be allocated
// and nothing should be done.
if (from.raw().base_addr == to.raw().base_addr && from.IsAllocated()) {
return ReturnError(
terminator, StatMoveAllocSameAllocatable, errMsg, hasStat);
}
if (to.IsAllocated()) {
int stat{to.Destroy(/*finalize=*/true)};
if (stat != StatOk) {
return ReturnError(terminator, stat, errMsg, hasStat);
}
}
// If from isn't allocated, the standard defines that nothing should be done.
if (from.IsAllocated()) {
to = from;
from.raw().base_addr = nullptr;
// Carry over the dynamic type.
if (auto *toAddendum{to.Addendum()}) {
if (const auto *fromAddendum{from.Addendum()}) {
if (const auto *derived{fromAddendum->derivedType()}) {
toAddendum->set_derivedType(derived);
}
}
}
// Reset from dynamic type if needed.
if (auto *fromAddendum{from.Addendum()}) {
if (derivedType) {
fromAddendum->set_derivedType(derivedType);
}
}
}
return StatOk;
}
void RTNAME(AllocatableSetBounds)(Descriptor &descriptor, int zeroBasedDim,
SubscriptValue lower, SubscriptValue upper) {
INTERNAL_CHECK(zeroBasedDim >= 0 && zeroBasedDim < descriptor.rank());
descriptor.GetDimension(zeroBasedDim).SetBounds(lower, upper);
// The byte strides are computed when the object is allocated.
}
void RTNAME(AllocatableSetDerivedLength)(
Descriptor &descriptor, int which, SubscriptValue x) {
DescriptorAddendum *addendum{descriptor.Addendum()};
INTERNAL_CHECK(addendum != nullptr);
addendum->SetLenParameterValue(which, x);
}
void RTNAME(AllocatableApplyMold)(
Descriptor &descriptor, const Descriptor &mold, int rank) {
if (descriptor.IsAllocated()) {
// 9.7.1.3 Return so the error can be emitted by AllocatableAllocate.
return;
}
descriptor = mold;
descriptor.set_base_addr(nullptr);
descriptor.raw().attribute = CFI_attribute_allocatable;
descriptor.raw().rank = rank;
if (auto *descAddendum{descriptor.Addendum()}) {
if (const auto *moldAddendum{mold.Addendum()}) {
if (const auto *derived{moldAddendum->derivedType()}) {
descAddendum->set_derivedType(derived);
}
}
}
}
int RTNAME(AllocatableAllocate)(Descriptor &descriptor, bool hasStat,
const Descriptor *errMsg, const char *sourceFile, int sourceLine) {
Terminator terminator{sourceFile, sourceLine};
if (!descriptor.IsAllocatable()) {
return ReturnError(terminator, StatInvalidDescriptor, errMsg, hasStat);
}
if (descriptor.IsAllocated()) {
return ReturnError(terminator, StatBaseNotNull, errMsg, hasStat);
}
int stat{ReturnError(terminator, descriptor.Allocate(), errMsg, hasStat)};
if (stat == StatOk) {
if (const DescriptorAddendum * addendum{descriptor.Addendum()}) {
if (const auto *derived{addendum->derivedType()}) {
if (!derived->noInitializationNeeded()) {
stat = Initialize(descriptor, *derived, terminator, hasStat, errMsg);
}
}
}
}
return stat;
}
int RTNAME(AllocatableAllocateSource)(Descriptor &alloc,
const Descriptor &source, bool hasStat, const Descriptor *errMsg,
const char *sourceFile, int sourceLine) {
if (alloc.Elements() == 0) {
return StatOk;
}
int stat{RTNAME(AllocatableAllocate)(
alloc, hasStat, errMsg, sourceFile, sourceLine)};
if (stat == StatOk) {
Terminator terminator{sourceFile, sourceLine};
DoFromSourceAssign(alloc, source, terminator);
}
return stat;
}
int RTNAME(AllocatableDeallocate)(Descriptor &descriptor, bool hasStat,
const Descriptor *errMsg, const char *sourceFile, int sourceLine) {
Terminator terminator{sourceFile, sourceLine};
if (!descriptor.IsAllocatable()) {
return ReturnError(terminator, StatInvalidDescriptor, errMsg, hasStat);
}
if (!descriptor.IsAllocated()) {
return ReturnError(terminator, StatBaseNull, errMsg, hasStat);
}
return ReturnError(terminator, descriptor.Destroy(true), errMsg, hasStat);
}
int RTNAME(AllocatableDeallocatePolymorphic)(Descriptor &descriptor,
const typeInfo::DerivedType *derivedType, bool hasStat,
const Descriptor *errMsg, const char *sourceFile, int sourceLine) {
int stat{RTNAME(AllocatableDeallocate)(
descriptor, hasStat, errMsg, sourceFile, sourceLine)};
if (stat == StatOk) {
DescriptorAddendum *addendum{descriptor.Addendum()};
if (addendum) {
addendum->set_derivedType(derivedType);
} else {
// Unlimited polymorphic descriptors initialized with
// AllocatableInitIntrinsic do not have an addendum. Make sure the
// derivedType is null in that case.
INTERNAL_CHECK(!derivedType);
}
}
return stat;
}
void RTNAME(AllocatableDeallocateNoFinal)(
Descriptor &descriptor, const char *sourceFile, int sourceLine) {
Terminator terminator{sourceFile, sourceLine};
if (!descriptor.IsAllocatable()) {
ReturnError(terminator, StatInvalidDescriptor);
} else if (!descriptor.IsAllocated()) {
ReturnError(terminator, StatBaseNull);
} else {
ReturnError(terminator, descriptor.Destroy(false));
}
}
// TODO: AllocatableCheckLengthParameter
}
} // namespace Fortran::runtime
|
