2 * Copyright 2012 Ecole Normale Superieure
4 * Use of this software is governed by the MIT license
6 * Written by Sven Verdoolaege,
7 * Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
14 #include "gpu_print.h"
18 /* Print declarations to "p" for arrays that are local to "prog"
19 * but that are used on the host and therefore require a declaration.
21 __isl_give isl_printer
*gpu_print_local_declarations(__isl_take isl_printer
*p
,
22 struct gpu_prog
*prog
)
27 return isl_printer_free(p
);
29 for (i
= 0; i
< prog
->n_array
; ++i
) {
30 if (!prog
->array
[i
].declare_local
)
32 p
= ppcg_print_declaration(p
, prog
->scop
->pet
->arrays
[i
]);
38 static int print_macro(enum isl_ast_op_type type
, void *user
)
40 isl_printer
**p
= user
;
42 if (type
== isl_ast_op_fdiv_q
)
45 *p
= isl_ast_op_type_print_macro(type
, *p
);
50 /* Print the required macros for "node", including one for floord.
51 * We always print a macro for floord as it may also appear in the statements.
53 __isl_give isl_printer
*gpu_print_macros(__isl_take isl_printer
*p
,
54 __isl_keep isl_ast_node
*node
)
56 p
= isl_ast_op_type_print_macro(isl_ast_op_fdiv_q
, p
);
57 if (isl_ast_node_foreach_ast_op_type(node
, &print_macro
, &p
) < 0)
58 return isl_printer_free(p
);
62 /* Print an expression for the size of "array" in bytes.
64 __isl_give isl_printer
*gpu_array_info_print_size(__isl_take isl_printer
*prn
,
65 struct gpu_array_info
*array
)
69 for (i
= 0; i
< array
->n_index
; ++i
) {
70 prn
= isl_printer_print_str(prn
, "(");
71 prn
= isl_printer_print_pw_aff(prn
, array
->bound
[i
]);
72 prn
= isl_printer_print_str(prn
, ") * ");
74 prn
= isl_printer_print_str(prn
, "sizeof(");
75 prn
= isl_printer_print_str(prn
, array
->type
);
76 prn
= isl_printer_print_str(prn
, ")");
81 /* Print the declaration of a non-linearized array argument.
83 static __isl_give isl_printer
*print_non_linearized_declaration_argument(
84 __isl_take isl_printer
*p
, struct gpu_array_info
*array
)
88 p
= isl_printer_print_str(p
, array
->type
);
89 p
= isl_printer_print_str(p
, " ");
91 p
= isl_printer_print_str(p
, array
->name
);
93 for (i
= 0; i
< array
->n_index
; i
++) {
94 p
= isl_printer_print_str(p
, "[");
95 p
= isl_printer_print_pw_aff(p
, array
->bound
[i
]);
96 p
= isl_printer_print_str(p
, "]");
102 /* Print the declaration of an array argument.
103 * "memory_space" allows to specify a memory space prefix.
105 __isl_give isl_printer
*gpu_array_info_print_declaration_argument(
106 __isl_take isl_printer
*p
, struct gpu_array_info
*array
,
107 const char *memory_space
)
109 if (gpu_array_is_read_only_scalar(array
)) {
110 p
= isl_printer_print_str(p
, array
->type
);
111 p
= isl_printer_print_str(p
, " ");
112 p
= isl_printer_print_str(p
, array
->name
);
117 p
= isl_printer_print_str(p
, memory_space
);
118 p
= isl_printer_print_str(p
, " ");
121 if (array
->n_index
!= 0 && !array
->linearize
)
122 return print_non_linearized_declaration_argument(p
, array
);
124 p
= isl_printer_print_str(p
, array
->type
);
125 p
= isl_printer_print_str(p
, " ");
126 p
= isl_printer_print_str(p
, "*");
127 p
= isl_printer_print_str(p
, array
->name
);
132 /* Print the call of an array argument.
134 __isl_give isl_printer
*gpu_array_info_print_call_argument(
135 __isl_take isl_printer
*p
, struct gpu_array_info
*array
)
137 if (gpu_array_is_read_only_scalar(array
))
138 return isl_printer_print_str(p
, array
->name
);
140 p
= isl_printer_print_str(p
, "dev_");
141 p
= isl_printer_print_str(p
, array
->name
);
146 /* Print an access to the element in the private/shared memory copy
147 * described by "stmt". The index of the copy is recorded in
148 * stmt->local_index as an access to the array.
150 static __isl_give isl_printer
*stmt_print_local_index(__isl_take isl_printer
*p
,
151 struct ppcg_kernel_stmt
*stmt
)
153 return isl_printer_print_ast_expr(p
, stmt
->u
.c
.local_index
);
156 /* Print an access to the element in the global memory copy
157 * described by "stmt". The index of the copy is recorded in
158 * stmt->index as an access to the array.
160 * The copy in global memory has been linearized, so we need to take
161 * the array size into account.
163 static __isl_give isl_printer
*stmt_print_global_index(
164 __isl_take isl_printer
*p
, struct ppcg_kernel_stmt
*stmt
)
167 struct gpu_array_info
*array
= stmt
->u
.c
.array
;
168 struct gpu_local_array_info
*local
= stmt
->u
.c
.local_array
;
171 if (gpu_array_is_scalar(array
)) {
172 if (!gpu_array_is_read_only_scalar(array
))
173 p
= isl_printer_print_str(p
, "*");
174 p
= isl_printer_print_str(p
, array
->name
);
178 index
= isl_ast_expr_copy(stmt
->u
.c
.index
);
179 if (array
->linearize
)
180 index
= gpu_local_array_info_linearize_index(local
, index
);
182 p
= isl_printer_print_ast_expr(p
, index
);
183 isl_ast_expr_free(index
);
188 /* Print a copy statement.
190 * A read copy statement is printed as
194 * while a write copy statement is printed as
198 __isl_give isl_printer
*ppcg_kernel_print_copy(__isl_take isl_printer
*p
,
199 struct ppcg_kernel_stmt
*stmt
)
201 p
= isl_printer_start_line(p
);
202 if (stmt
->u
.c
.read
) {
203 p
= stmt_print_local_index(p
, stmt
);
204 p
= isl_printer_print_str(p
, " = ");
205 p
= stmt_print_global_index(p
, stmt
);
207 p
= stmt_print_global_index(p
, stmt
);
208 p
= isl_printer_print_str(p
, " = ");
209 p
= stmt_print_local_index(p
, stmt
);
211 p
= isl_printer_print_str(p
, ";");
212 p
= isl_printer_end_line(p
);
217 __isl_give isl_printer
*ppcg_kernel_print_domain(__isl_take isl_printer
*p
,
218 struct ppcg_kernel_stmt
*stmt
)
220 return pet_stmt_print_body(stmt
->u
.d
.stmt
->stmt
, p
, stmt
->u
.d
.ref2expr
);
223 /* Was the definition of "type" printed before?
224 * That is, does its name appear in the list of printed types "types"?
226 static int already_printed(struct gpu_types
*types
,
227 struct pet_type
*type
)
231 for (i
= 0; i
< types
->n
; ++i
)
232 if (!strcmp(types
->name
[i
], type
->name
))
238 /* Print the definitions of all types prog->scop that have not been
239 * printed before (according to "types") on "p".
240 * Extend the list of printed types "types" with the newly printed types.
242 __isl_give isl_printer
*gpu_print_types(__isl_take isl_printer
*p
,
243 struct gpu_types
*types
, struct gpu_prog
*prog
)
249 n
= prog
->scop
->pet
->n_type
;
254 ctx
= isl_printer_get_ctx(p
);
255 name
= isl_realloc_array(ctx
, types
->name
, char *, types
->n
+ n
);
257 return isl_printer_free(p
);
260 for (i
= 0; i
< n
; ++i
) {
261 struct pet_type
*type
= prog
->scop
->pet
->types
[i
];
263 if (already_printed(types
, type
))
266 p
= isl_printer_start_line(p
);
267 p
= isl_printer_print_str(p
, type
->definition
);
268 p
= isl_printer_print_str(p
, ";");
269 p
= isl_printer_end_line(p
);
271 types
->name
[types
->n
++] = strdup(type
->name
);