-
Notifications
You must be signed in to change notification settings - Fork 167
/
Copy pathpass_utils.h
730 lines (646 loc) · 38 KB
/
pass_utils.h
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
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
#ifndef LFORTRAN_PASS_UTILS_H
#define LFORTRAN_PASS_UTILS_H
#include <libasr/asr.h>
#include <libasr/containers.h>
#include <queue>
namespace LCompilers {
namespace PassUtils {
bool is_array(ASR::expr_t* x);
void get_dim_rank(ASR::ttype_t* x_type, ASR::dimension_t*& m_dims, int& n_dims);
ASR::ttype_t* set_dim_rank(ASR::ttype_t* x_type, ASR::dimension_t*& m_dims, int& n_dims,
bool create_new=false, Allocator* al=nullptr);
int get_rank(ASR::expr_t* x);
ASR::expr_t* create_array_ref(ASR::expr_t* arr_expr, Vec<ASR::expr_t*>& idx_vars, Allocator& al);
ASR::expr_t* create_array_ref(ASR::symbol_t* arr, Vec<ASR::expr_t*>& idx_vars, Allocator& al,
const Location& loc, ASR::ttype_t* _type);
ASR::expr_t* create_array_ref(ASR::expr_t* arr_expr, ASR::expr_t* idx_var, Allocator& al,
SymbolTable* current_scope);
static inline bool is_elemental(ASR::symbol_t* x) {
x = ASRUtils::symbol_get_past_external(x);
if( !ASR::is_a<ASR::Function_t>(*x) ) {
return false;
}
return ASRUtils::get_FunctionType(
ASR::down_cast<ASR::Function_t>(x))->m_elemental;
}
void fix_dimension(ASR::Cast_t* x, ASR::expr_t* arg_expr);
ASR::ttype_t* get_matching_type(ASR::expr_t* sibling, Allocator& al);
ASR::expr_t* create_var(int counter, std::string suffix, const Location& loc,
ASR::ttype_t* var_type, Allocator& al, SymbolTable*& current_scope);
ASR::expr_t* create_var(int counter, std::string suffix, const Location& loc,
ASR::expr_t* sibling, Allocator& al, SymbolTable*& current_scope);
void create_vars(Vec<ASR::expr_t*>& vars, int n_vars, const Location& loc,
Allocator& al, SymbolTable*& current_scope, std::string suffix="_k",
ASR::intentType intent=ASR::intentType::Local,
ASR::presenceType presence=ASR::presenceType::Required);
void create_idx_vars(Vec<ASR::expr_t*>& idx_vars, int n_dims, const Location& loc,
Allocator& al, SymbolTable*& current_scope, std::string suffix="_k");
void create_idx_vars(Vec<ASR::expr_t*>& idx_vars, ASR::array_index_t* m_args, int n_dims,
std::vector<int>& value_indices, const Location& loc, Allocator& al,
SymbolTable*& current_scope, std::string suffix="_k");
void create_idx_vars(Vec<ASR::expr_t*>& idx_vars, Vec<ASR::expr_t*>& loop_vars,
std::vector<int>& loop_var_indices,
Vec<ASR::expr_t*>& vars, Vec<ASR::expr_t*>& incs,
const Location& loc, Allocator& al,
SymbolTable*& current_scope, std::string suffix="_k");
ASR::expr_t* create_compare_helper(Allocator &al, const Location &loc, ASR::expr_t* left, ASR::expr_t* right,
ASR::cmpopType op);
ASR::expr_t* create_binop_helper(Allocator &al, const Location &loc, ASR::expr_t* left, ASR::expr_t* right,
ASR::binopType op);
ASR::expr_t* get_bound(ASR::expr_t* arr_expr, int dim, std::string bound,
Allocator& al);
ASR::stmt_t* get_flipsign(ASR::expr_t* arg0, ASR::expr_t* arg1,
Allocator& al, ASR::TranslationUnit_t& unit,
LCompilers::PassOptions& pass_options,
SymbolTable*& current_scope,
const std::function<void (const std::string &, const Location &)> err);
ASR::expr_t* to_int32(ASR::expr_t* x, ASR::ttype_t* int32type, Allocator& al);
ASR::expr_t* create_auxiliary_variable_for_expr(ASR::expr_t* expr, std::string& name,
Allocator& al, SymbolTable*& current_scope, ASR::stmt_t*& assign_stmt);
ASR::expr_t* create_auxiliary_variable(const Location& loc, std::string& name,
Allocator& al, SymbolTable*& current_scope, ASR::ttype_t* var_type,
ASR::intentType var_intent=ASR::intentType::Local);
ASR::expr_t* get_fma(ASR::expr_t* arg0, ASR::expr_t* arg1, ASR::expr_t* arg2,
Allocator& al, ASR::TranslationUnit_t& unit, LCompilers::PassOptions& pass_options,
SymbolTable*& current_scope,Location& loc,
const std::function<void (const std::string &, const Location &)> err);
ASR::expr_t* get_sign_from_value(ASR::expr_t* arg0, ASR::expr_t* arg1,
Allocator& al, ASR::TranslationUnit_t& unit,
LCompilers::PassOptions& pass_options,
SymbolTable*& current_scope, Location& loc,
const std::function<void (const std::string &, const Location &)> err);
ASR::stmt_t* get_vector_copy(ASR::expr_t* array0, ASR::expr_t* array1, ASR::expr_t* start,
ASR::expr_t* end, ASR::expr_t* step, ASR::expr_t* vector_length,
Allocator& al, ASR::TranslationUnit_t& unit,
SymbolTable*& global_scope, Location& loc);
Vec<ASR::stmt_t*> replace_doloop(Allocator &al, const ASR::DoLoop_t &loop,
int comp=-1);
static inline bool is_aggregate_type(ASR::expr_t* var) {
return ASR::is_a<ASR::Struct_t>(*ASRUtils::expr_type(var));
}
template <class Struct>
class PassVisitor: public ASR::ASRPassBaseWalkVisitor<Struct> {
private:
Struct& self() { return static_cast<Struct&>(*this); }
public:
bool asr_changed, retain_original_stmt, remove_original_stmt;
Allocator& al;
Vec<ASR::stmt_t*> pass_result;
PassVisitor(Allocator& al_, SymbolTable* current_scope_): al{al_}
{
this->current_scope = current_scope_;
pass_result.n = 0;
}
void transform_stmts(ASR::stmt_t **&m_body, size_t &n_body) {
Vec<ASR::stmt_t*> body;
body.reserve(al, n_body);
if (pass_result.size() > 0) {
asr_changed = true;
for (size_t j=0; j < pass_result.size(); j++) {
body.push_back(al, pass_result[j]);
}
pass_result.n = 0;
}
for (size_t i=0; i<n_body; i++) {
// Not necessary after we check it after each visit_stmt in every
// visitor method:
pass_result.n = 0;
retain_original_stmt = false;
remove_original_stmt = false;
self().visit_stmt(*m_body[i]);
if (pass_result.size() > 0) {
asr_changed = true;
for (size_t j=0; j < pass_result.size(); j++) {
body.push_back(al, pass_result[j]);
}
if( retain_original_stmt ) {
body.push_back(al, m_body[i]);
retain_original_stmt = false;
}
pass_result.n = 0;
} else if(!remove_original_stmt) {
body.push_back(al, m_body[i]);
}
}
m_body = body.p;
n_body = body.size();
}
void visit_Program(const ASR::Program_t &x) {
// FIXME: this is a hack, we need to pass in a non-const `x`,
// which requires to generate a TransformVisitor.
ASR::Program_t &xx = const_cast<ASR::Program_t&>(x);
SymbolTable* current_scope_copy = this->current_scope;
this->current_scope = xx.m_symtab;
transform_stmts(xx.m_body, xx.n_body);
// Transform nested functions and subroutines
for (auto &item : x.m_symtab->get_scope()) {
if (ASR::is_a<ASR::Function_t>(*item.second)) {
ASR::Function_t *s = ASR::down_cast<ASR::Function_t>(item.second);
self().visit_Function(*s);
}
if (ASR::is_a<ASR::AssociateBlock_t>(*item.second)) {
ASR::AssociateBlock_t *s = ASR::down_cast<ASR::AssociateBlock_t>(item.second);
self().visit_AssociateBlock(*s);
}
if (ASR::is_a<ASR::Block_t>(*item.second)) {
ASR::Block_t *s = ASR::down_cast<ASR::Block_t>(item.second);
self().visit_Block(*s);
}
}
this->current_scope = current_scope_copy;
}
void visit_Function(const ASR::Function_t &x) {
// FIXME: this is a hack, we need to pass in a non-const `x`,
// which requires to generate a TransformVisitor.
ASR::Function_t &xx = const_cast<ASR::Function_t&>(x);
SymbolTable* current_scope_copy = this->current_scope;
this->current_scope = xx.m_symtab;
self().visit_ttype(*x.m_function_signature);
for (size_t i=0; i<x.n_args; i++) {
self().visit_expr(*x.m_args[i]);
}
transform_stmts(xx.m_body, xx.n_body);
if (x.m_return_var) {
self().visit_expr(*x.m_return_var);
}
for (auto &item : x.m_symtab->get_scope()) {
if (ASR::is_a<ASR::Function_t>(*item.second)) {
ASR::Function_t *s = ASR::down_cast<ASR::Function_t>(item.second);
self().visit_Function(*s);
}
if (ASR::is_a<ASR::Block_t>(*item.second)) {
ASR::Block_t *s = ASR::down_cast<ASR::Block_t>(item.second);
self().visit_Block(*s);
}
if (ASR::is_a<ASR::AssociateBlock_t>(*item.second)) {
ASR::AssociateBlock_t *s = ASR::down_cast<ASR::AssociateBlock_t>(item.second);
self().visit_AssociateBlock(*s);
}
}
this->current_scope = current_scope_copy;
}
};
template <class Struct>
class SkipOptimizationFunctionVisitor: public PassVisitor<Struct> {
public:
SkipOptimizationFunctionVisitor(Allocator& al_): PassVisitor<Struct>(al_, nullptr) {
}
void visit_Function(const ASR::Function_t &x) {
if( ASRUtils::is_intrinsic_optimization<ASR::Function_t>(&x) ) {
return ;
}
PassUtils::PassVisitor<Struct>::visit_Function(x);
}
};
class UpdateDependenciesVisitor : public ASR::BaseWalkVisitor<UpdateDependenciesVisitor> {
private:
SetChar function_dependencies;
SetChar module_dependencies;
SetChar variable_dependencies;
Allocator& al;
bool fill_function_dependencies;
bool fill_module_dependencies;
bool fill_variable_dependencies;
public:
UpdateDependenciesVisitor(Allocator &al_)
: al(al_), fill_function_dependencies(false),
fill_module_dependencies(false),
fill_variable_dependencies(false)
{
function_dependencies.n = 0;
module_dependencies.n = 0;
variable_dependencies.n = 0;
}
void visit_Function(const ASR::Function_t& x) {
ASR::Function_t& xx = const_cast<ASR::Function_t&>(x);
SetChar function_dependencies_copy;
function_dependencies_copy.from_pointer_n_copy(al, function_dependencies.p, function_dependencies.size());
function_dependencies.n = 0;
function_dependencies.reserve(al, 1);
bool fill_function_dependencies_copy = fill_function_dependencies;
fill_function_dependencies = true;
BaseWalkVisitor<UpdateDependenciesVisitor>::visit_Function(x);
xx.m_dependencies = function_dependencies.p;
xx.n_dependencies = function_dependencies.size();
fill_function_dependencies = fill_function_dependencies_copy;
function_dependencies.from_pointer_n_copy(al,
function_dependencies_copy.p,
function_dependencies_copy.size()
);
}
void visit_Module(const ASR::Module_t& x) {
ASR::Module_t& xx = const_cast<ASR::Module_t&>(x);
module_dependencies.n = 0;
module_dependencies.reserve(al, 1);
bool fill_module_dependencies_copy = fill_module_dependencies;
fill_module_dependencies = true;
BaseWalkVisitor<UpdateDependenciesVisitor>::visit_Module(x);
for( size_t i = 0; i < xx.n_dependencies; i++ ) {
module_dependencies.push_back(al, xx.m_dependencies[i]);
}
xx.n_dependencies = module_dependencies.size();
xx.m_dependencies = module_dependencies.p;
fill_module_dependencies = fill_module_dependencies_copy;
}
void visit_Variable(const ASR::Variable_t& x) {
ASR::Variable_t& xx = const_cast<ASR::Variable_t&>(x);
variable_dependencies.n = 0;
variable_dependencies.reserve(al, 1);
bool fill_variable_dependencies_copy = fill_variable_dependencies;
fill_variable_dependencies = true;
BaseWalkVisitor<UpdateDependenciesVisitor>::visit_Variable(x);
xx.n_dependencies = variable_dependencies.size();
xx.m_dependencies = variable_dependencies.p;
fill_variable_dependencies = fill_variable_dependencies_copy;
}
void visit_Var(const ASR::Var_t& x) {
if( fill_variable_dependencies ) {
variable_dependencies.push_back(al, ASRUtils::symbol_name(x.m_v));
}
}
void visit_FunctionCall(const ASR::FunctionCall_t& x) {
if( fill_function_dependencies ) {
function_dependencies.push_back(al, ASRUtils::symbol_name(x.m_name));
}
if( ASR::is_a<ASR::ExternalSymbol_t>(*x.m_name) &&
fill_module_dependencies ) {
ASR::ExternalSymbol_t* x_m_name = ASR::down_cast<ASR::ExternalSymbol_t>(x.m_name);
if( ASR::is_a<ASR::Module_t>(*ASRUtils::get_asr_owner(x_m_name->m_external)) ) {
module_dependencies.push_back(al, x_m_name->m_module_name);
}
}
BaseWalkVisitor<UpdateDependenciesVisitor>::visit_FunctionCall(x);
}
void visit_SubroutineCall(const ASR::SubroutineCall_t& x) {
if( fill_function_dependencies ) {
function_dependencies.push_back(al, ASRUtils::symbol_name(x.m_name));
}
if( ASR::is_a<ASR::ExternalSymbol_t>(*x.m_name) &&
fill_module_dependencies ) {
ASR::ExternalSymbol_t* x_m_name = ASR::down_cast<ASR::ExternalSymbol_t>(x.m_name);
if( ASR::is_a<ASR::Module_t>(*ASRUtils::get_asr_owner(x_m_name->m_external)) ) {
module_dependencies.push_back(al, x_m_name->m_module_name);
}
}
BaseWalkVisitor<UpdateDependenciesVisitor>::visit_SubroutineCall(x);
}
void visit_BlockCall(const ASR::BlockCall_t& x) {
ASR::Block_t* block = ASR::down_cast<ASR::Block_t>(x.m_m);
for (size_t i=0; i<block->n_body; i++) {
visit_stmt(*(block->m_body[i]));
}
}
};
namespace ReplacerUtils {
template <typename T>
void replace_StructTypeConstructor(ASR::StructTypeConstructor_t* x,
T* replacer, bool inside_symtab, bool& remove_original_statement,
Vec<ASR::stmt_t*>* result_vec) {
if( x->n_args == 0 ) {
if( !inside_symtab ) {
remove_original_statement = true;
}
return ;
}
if( replacer->result_var == nullptr ) {
std::string result_var_name = replacer->current_scope->get_unique_name("temp_struct_var__");
replacer->result_var = PassUtils::create_auxiliary_variable(x->base.base.loc,
result_var_name, replacer->al, replacer->current_scope, x->m_type);
*replacer->current_expr = replacer->result_var;
} else {
if( inside_symtab ) {
*replacer->current_expr = nullptr;
} else {
remove_original_statement = true;
}
}
std::deque<ASR::symbol_t*> constructor_arg_syms;
ASR::Struct_t* dt_der = ASR::down_cast<ASR::Struct_t>(x->m_type);
ASR::StructType_t* dt_dertype = ASR::down_cast<ASR::StructType_t>(
ASRUtils::symbol_get_past_external(dt_der->m_derived_type));
while( dt_dertype ) {
for( int i = (int) dt_dertype->n_members - 1; i >= 0; i-- ) {
constructor_arg_syms.push_front(
dt_dertype->m_symtab->get_symbol(
dt_dertype->m_members[i]));
}
if( dt_dertype->m_parent != nullptr ) {
ASR::symbol_t* dt_der_sym = ASRUtils::symbol_get_past_external(
dt_dertype->m_parent);
LCOMPILERS_ASSERT(ASR::is_a<ASR::StructType_t>(*dt_der_sym));
dt_dertype = ASR::down_cast<ASR::StructType_t>(dt_der_sym);
} else {
dt_dertype = nullptr;
}
}
LCOMPILERS_ASSERT(constructor_arg_syms.size() == x->n_args);
for( size_t i = 0; i < x->n_args; i++ ) {
if( x->m_args[i].m_value == nullptr ) {
continue ;
}
ASR::symbol_t* member = constructor_arg_syms[i];
if( ASR::is_a<ASR::StructTypeConstructor_t>(*x->m_args[i].m_value) ) {
ASR::expr_t* result_var_copy = replacer->result_var;
ASR::symbol_t *v = nullptr;
if (ASR::is_a<ASR::Var_t>(*result_var_copy)) {
v = ASR::down_cast<ASR::Var_t>(result_var_copy)->m_v;
}
replacer->result_var = ASRUtils::EXPR(ASRUtils::getStructInstanceMember_t(replacer->al,
x->base.base.loc, (ASR::asr_t*) result_var_copy, v,
member, replacer->current_scope));
ASR::expr_t** current_expr_copy = replacer->current_expr;
replacer->current_expr = &(x->m_args[i].m_value);
replacer->replace_expr(x->m_args[i].m_value);
replacer->current_expr = current_expr_copy;
replacer->result_var = result_var_copy;
} else {
ASR::symbol_t *v = nullptr;
if (ASR::is_a<ASR::Var_t>(*replacer->result_var)) {
v = ASR::down_cast<ASR::Var_t>(replacer->result_var)->m_v;
}
ASR::expr_t* derived_ref = ASRUtils::EXPR(ASRUtils::getStructInstanceMember_t(replacer->al,
x->base.base.loc, (ASR::asr_t*) replacer->result_var, v,
member, replacer->current_scope));
ASR::stmt_t* assign = ASRUtils::STMT(ASR::make_Assignment_t(replacer->al,
x->base.base.loc, derived_ref,
x->m_args[i].m_value, nullptr));
result_vec->push_back(replacer->al, assign);
}
}
}
static inline void create_do_loop(Allocator& al, ASR::ImpliedDoLoop_t* idoloop,
ASR::expr_t* arr_var, Vec<ASR::stmt_t*>* result_vec,
ASR::expr_t* arr_idx=nullptr) {
ASR::do_loop_head_t head;
head.m_v = idoloop->m_var;
head.m_start = idoloop->m_start;
head.m_end = idoloop->m_end;
head.m_increment = idoloop->m_increment;
head.loc = head.m_v->base.loc;
Vec<ASR::stmt_t*> doloop_body;
doloop_body.reserve(al, 1);
ASR::ttype_t *_type = ASRUtils::expr_type(idoloop->m_start);
ASR::expr_t* const_1 = ASRUtils::EXPR(ASR::make_IntegerConstant_t(al, arr_var->base.loc, 1, _type));
ASR::expr_t *const_n, *offset, *num_grps, *grp_start;
const_n = offset = num_grps = grp_start = nullptr;
if( arr_idx == nullptr ) {
const_n = ASRUtils::EXPR(ASR::make_IntegerConstant_t(al, arr_var->base.loc, idoloop->n_values, _type));
offset = ASRUtils::EXPR(ASR::make_IntegerBinOp_t(al, arr_var->base.loc, idoloop->m_var,
ASR::binopType::Sub, idoloop->m_start, _type, nullptr));
num_grps = ASRUtils::EXPR(ASR::make_IntegerBinOp_t(al, arr_var->base.loc, offset,
ASR::binopType::Mul, const_n, _type, nullptr));
grp_start = ASRUtils::EXPR(ASR::make_IntegerBinOp_t(al, arr_var->base.loc, num_grps,
ASR::binopType::Add, const_1, _type, nullptr));
}
for( size_t i = 0; i < idoloop->n_values; i++ ) {
Vec<ASR::array_index_t> args;
ASR::array_index_t ai;
ai.loc = arr_var->base.loc;
ai.m_left = nullptr;
if( arr_idx == nullptr ) {
ASR::expr_t* const_i = ASRUtils::EXPR(ASR::make_IntegerConstant_t(al, arr_var->base.loc, i, _type));
ASR::expr_t* idx = ASRUtils::EXPR(ASR::make_IntegerBinOp_t(al, arr_var->base.loc,
grp_start, ASR::binopType::Add, const_i, _type, nullptr));
ai.m_right = idx;
} else {
ai.m_right = arr_idx;
}
ai.m_step = nullptr;
args.reserve(al, 1);
args.push_back(al, ai);
ASR::ttype_t* array_ref_type = ASRUtils::expr_type(arr_var);
Vec<ASR::dimension_t> empty_dims;
empty_dims.reserve(al, 1);
array_ref_type = ASRUtils::duplicate_type(al, array_ref_type, &empty_dims);
ASR::expr_t* array_ref = ASRUtils::EXPR(ASR::make_ArrayItem_t(al, arr_var->base.loc,
arr_var, args.p, args.size(),
ASRUtils::type_get_past_allocatable(array_ref_type),
ASR::arraystorageType::RowMajor, nullptr));
if( ASR::is_a<ASR::ImpliedDoLoop_t>(*idoloop->m_values[i]) ) {
create_do_loop(al, ASR::down_cast<ASR::ImpliedDoLoop_t>(idoloop->m_values[i]),
arr_var, &doloop_body, arr_idx);
} else {
ASR::stmt_t* doloop_stmt = ASRUtils::STMT(ASR::make_Assignment_t(al, arr_var->base.loc,
array_ref, idoloop->m_values[i], nullptr));
doloop_body.push_back(al, doloop_stmt);
if( arr_idx != nullptr ) {
ASR::expr_t* increment = ASRUtils::EXPR(ASR::make_IntegerBinOp_t(al, arr_var->base.loc,
arr_idx, ASR::binopType::Add, const_1, ASRUtils::expr_type(arr_idx), nullptr));
ASR::stmt_t* assign_stmt = ASRUtils::STMT(ASR::make_Assignment_t(al, arr_var->base.loc,
arr_idx, increment, nullptr));
doloop_body.push_back(al, assign_stmt);
}
}
}
ASR::stmt_t* doloop = ASRUtils::STMT(ASR::make_DoLoop_t(al, arr_var->base.loc,
nullptr, head, doloop_body.p, doloop_body.size()));
result_vec->push_back(al, doloop);
}
template <typename LOOP_BODY>
static inline void create_do_loop(Allocator& al, const Location& loc, int value_rank, ASR::expr_t* value_array,
Vec<ASR::expr_t*>& idx_vars, Vec<ASR::stmt_t*>& doloop_body,
LOOP_BODY loop_body, SymbolTable* current_scope, Vec<ASR::stmt_t*>* result_vec) {
PassUtils::create_idx_vars(idx_vars, value_rank, loc, al, current_scope, "_t");
LCOMPILERS_ASSERT(value_rank == (int) idx_vars.size())
ASR::stmt_t* doloop = nullptr;
for( int i = 0; i < value_rank; i++ ) {
// TODO: Add an If debug node to check if the lower and upper bounds of both the arrays are same.
ASR::do_loop_head_t head;
head.m_v = idx_vars[i];
head.m_start = PassUtils::get_bound(value_array, i + 1, "lbound", al);
head.m_end = PassUtils::get_bound(value_array, i + 1, "ubound", al);
head.m_increment = nullptr;
head.loc = head.m_v->base.loc;
doloop_body.reserve(al, 1);
if( doloop == nullptr ) {
loop_body();
} else {
doloop_body.push_back(al, doloop);
}
doloop = ASRUtils::STMT(ASR::make_DoLoop_t(al, loc, nullptr, head,
doloop_body.p, doloop_body.size()));
}
result_vec->push_back(al, doloop);
}
template <typename LOOP_BODY>
static inline void create_do_loop(Allocator& al, const Location& loc,
ASR::ArraySection_t* array_section, Vec<ASR::expr_t*>& idx_vars,
Vec<ASR::stmt_t*>& doloop_body, LOOP_BODY loop_body, SymbolTable* current_scope,
Vec<ASR::stmt_t*>* result_vec) {
PassUtils::create_idx_vars(idx_vars, array_section->n_args, loc, al, current_scope, "_t");
LCOMPILERS_ASSERT(array_section->n_args == idx_vars.size())
ASR::stmt_t* doloop = nullptr;
for( size_t i = 0; i < array_section->n_args; i++ ) {
if( array_section->m_args[i].m_step == nullptr ) {
continue ;
}
// TODO: Add an If debug node to check if the lower and upper bounds of both the arrays are same.
ASR::do_loop_head_t head;
head.m_v = idx_vars[i];
head.m_start = array_section->m_args[i].m_left;
head.m_end = array_section->m_args[i].m_right;
head.m_increment = array_section->m_args[i].m_step;
head.loc = head.m_v->base.loc;
doloop_body.reserve(al, 1);
if( doloop == nullptr ) {
loop_body();
} else {
doloop_body.push_back(al, doloop);
}
doloop = ASRUtils::STMT(ASR::make_DoLoop_t(al, loc, nullptr, head,
doloop_body.p, doloop_body.size()));
}
result_vec->push_back(al, doloop);
}
void visit_ArrayConstant(ASR::ArrayConstant_t* x, Allocator& al,
ASR::expr_t* arr_var, Vec<ASR::stmt_t*>* result_vec, ASR::expr_t* idx_var,
SymbolTable* current_scope);
template <typename T>
static inline void replace_ArrayConstant(ASR::ArrayConstant_t* x, T* replacer,
bool& remove_original_statement, Vec<ASR::stmt_t*>* result_vec) {
LCOMPILERS_ASSERT(replacer->result_var != nullptr);
if( x->n_args == 0 ) {
remove_original_statement = true;
return ;
}
const Location& loc = x->base.base.loc;
if( ASR::is_a<ASR::Var_t>(*replacer->result_var) ) {
[[maybe_unused]] ASR::ttype_t* result_var_type = ASRUtils::expr_type(replacer->result_var);
LCOMPILERS_ASSERT_MSG(ASRUtils::extract_n_dims_from_ttype(result_var_type) == 1,
"Initialisation using ArrayConstant is "
"supported only for single dimensional arrays, found: " +
std::to_string(ASRUtils::extract_n_dims_from_ttype(result_var_type)))
Vec<ASR::expr_t*> idx_vars;
PassUtils::create_idx_vars(idx_vars, 1, loc, replacer->al, replacer->current_scope);
ASR::expr_t* idx_var = idx_vars[0];
ASR::expr_t* lb = PassUtils::get_bound(replacer->result_var, 1, "lbound", replacer->al);
ASR::stmt_t* assign_stmt = ASRUtils::STMT(ASR::make_Assignment_t(replacer->al,
loc, idx_var, lb, nullptr));
result_vec->push_back(replacer->al, assign_stmt);
visit_ArrayConstant(x, replacer->al, replacer->result_var, result_vec,
idx_var, replacer->current_scope);
} else if( ASR::is_a<ASR::ArraySection_t>(*replacer->result_var) ) {
ASR::ArraySection_t* target_section = ASR::down_cast<ASR::ArraySection_t>(replacer->result_var);
int sliced_dims_count = 0;
size_t sliced_dim_index = 0;
for( size_t i = 0; i < target_section->n_args; i++ ) {
if( !(target_section->m_args[i].m_left == nullptr &&
target_section->m_args[i].m_right != nullptr &&
target_section->m_args[i].m_step == nullptr) ) {
sliced_dims_count += 1;
sliced_dim_index = i + 1;
}
}
if( sliced_dims_count != 1 ) {
throw LCompilersException("Target expressions only having one "
"dimension sliced are supported for now.");
}
Vec<ASR::expr_t*> idx_vars;
PassUtils::create_idx_vars(idx_vars, 1, loc, replacer->al, replacer->current_scope);
ASR::expr_t* idx_var = idx_vars[0];
ASR::expr_t* lb = PassUtils::get_bound(target_section->m_v, sliced_dim_index, "lbound", replacer->al);
ASR::expr_t* const_1 = ASRUtils::EXPR(ASR::make_IntegerConstant_t(replacer->al, loc, 1,
ASRUtils::expr_type(idx_var)));
ASR::stmt_t* assign_stmt = ASRUtils::STMT(ASR::make_Assignment_t(replacer->al,
target_section->base.base.loc, idx_var, lb, nullptr));
result_vec->push_back(replacer->al, assign_stmt);
for( size_t k = 0; k < x->n_args; k++ ) {
ASR::expr_t* curr_init = x->m_args[k];
if( ASR::is_a<ASR::ImpliedDoLoop_t>(*curr_init) ) {
throw LCompilersException("Do loops in array initialiser expressions not supported yet.");
} else {
Vec<ASR::array_index_t> args;
args.reserve(replacer->al, target_section->n_args);
for( size_t i = 0; i < target_section->n_args; i++ ) {
if( i + 1 == sliced_dim_index ) {
ASR::array_index_t ai;
ai.loc = target_section->base.base.loc;
ai.m_left = nullptr;
ai.m_step = nullptr;
ai.m_right = idx_var;
args.push_back(replacer->al, ai);
} else {
args.push_back(replacer->al, target_section->m_args[i]);
}
}
ASR::ttype_t* array_ref_type = ASRUtils::expr_type(replacer->result_var);
Vec<ASR::dimension_t> empty_dims;
empty_dims.reserve(replacer->al, 1);
array_ref_type = ASRUtils::duplicate_type(replacer->al, array_ref_type, &empty_dims);
ASR::expr_t* array_ref = ASRUtils::EXPR(ASR::make_ArrayItem_t(replacer->al,
target_section->base.base.loc,
target_section->m_v,
args.p, args.size(),
ASRUtils::type_get_past_allocatable(array_ref_type),
ASR::arraystorageType::RowMajor, nullptr));
ASR::stmt_t* assign_stmt = ASRUtils::STMT(ASR::make_Assignment_t(replacer->al, target_section->base.base.loc,
array_ref, x->m_args[k], nullptr));
result_vec->push_back(replacer->al, assign_stmt);
ASR::expr_t* increment = ASRUtils::EXPR(ASR::make_IntegerBinOp_t(replacer->al, target_section->base.base.loc,
idx_var, ASR::binopType::Add, const_1, ASRUtils::expr_type(idx_var), nullptr));
assign_stmt = ASRUtils::STMT(ASR::make_Assignment_t(replacer->al, target_section->base.base.loc, idx_var, increment, nullptr));
result_vec->push_back(replacer->al, assign_stmt);
}
}
}
}
}
static inline void handle_fn_return_var(Allocator &al, ASR::Function_t *x,
bool (*is_array_or_struct)(ASR::expr_t*)) {
if (ASRUtils::get_FunctionType(x)->m_abi == ASR::abiType::BindPython) {
return;
}
if (x->m_return_var) {
/*
* The `return_var` of the function, which is either an array or
* struct, is set to `null`, and the destination variable will be
* passed as the last argument to the existing function. This helps
* in avoiding deep copies and the destination memory directly gets
* filled inside the function.
*/
if( is_array_or_struct(x->m_return_var)) {
for( auto& s_item: x->m_symtab->get_scope() ) {
ASR::symbol_t* curr_sym = s_item.second;
if( curr_sym->type == ASR::symbolType::Variable ) {
ASR::Variable_t* var = ASR::down_cast<ASR::Variable_t>(curr_sym);
if( var->m_intent == ASR::intentType::Unspecified ) {
var->m_intent = ASR::intentType::In;
} else if( var->m_intent == ASR::intentType::ReturnVar ) {
var->m_intent = ASR::intentType::Out;
}
}
}
Vec<ASR::expr_t*> a_args;
a_args.reserve(al, x->n_args + 1);
for( size_t i = 0; i < x->n_args; i++ ) {
a_args.push_back(al, x->m_args[i]);
}
LCOMPILERS_ASSERT(x->m_return_var)
a_args.push_back(al, x->m_return_var);
x->m_args = a_args.p;
x->n_args = a_args.n;
x->m_return_var = nullptr;
ASR::FunctionType_t* s_func_type = ASR::down_cast<ASR::FunctionType_t>(
x->m_function_signature);
Vec<ASR::ttype_t*> arg_types;
arg_types.reserve(al, a_args.n);
for(auto &e: a_args) {
ASRUtils::ReplaceWithFunctionParamVisitor replacer(al, x->m_args, x->n_args);
arg_types.push_back(al, replacer.replace_args_with_FunctionParam(
ASRUtils::expr_type(e)));
}
s_func_type->m_arg_types = arg_types.p;
s_func_type->n_arg_types = arg_types.n;
s_func_type->m_return_var_type = nullptr;
}
}
for (auto &item : x->m_symtab->get_scope()) {
if (ASR::is_a<ASR::Function_t>(*item.second)) {
handle_fn_return_var(al, ASR::down_cast<ASR::Function_t>(
item.second), is_array_or_struct);
}
}
}
} // namespace PassUtils
} // namespace LCompilers
#endif // LFORTRAN_PASS_UTILS_H