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Viewing changes to src/freedreno/afuc/parser.y

  • Committer: mmach
  • Date: 2022-09-22 19:56:13 UTC
  • Revision ID: netbit73@gmail.com-20220922195613-wtik9mmy20tmor0i
2022-09-22 21:17:09

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src/freedreno/afuc/parser.y
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/*
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 * Copyright (c) 2013 Rob Clark <robclark@freedesktop.org>
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
14
 
 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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 * SOFTWARE.
22
 
 */
23
 
 
24
 
%{
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#define YYDEBUG 0
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27
 
#include <stdlib.h>
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#include <stdio.h>
29
 
#include <string.h>
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#include <math.h>
31
 
#include "asm.h"
32
 
 
33
 
 
34
 
int yyget_lineno(void);
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36
 
#ifdef YYDEBUG
37
 
int yydebug;
38
 
#endif
39
 
 
40
 
extern int yylex(void);
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typedef void *YY_BUFFER_STATE;
42
 
extern YY_BUFFER_STATE yy_scan_string(const char *);
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extern void yy_delete_buffer(YY_BUFFER_STATE);
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45
 
int yyparse(void);
46
 
 
47
 
void yyerror(const char *error);
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void yyerror(const char *error)
49
 
{
50
 
        fprintf(stderr, "error at line %d: %s\n", yyget_lineno(), error);
51
 
}
52
 
 
53
 
static struct asm_instruction *instr;   /* current instruction */
54
 
 
55
 
static void
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new_instr(int tok)
57
 
{
58
 
        instr = next_instr(tok);
59
 
}
60
 
 
61
 
static void
62
 
dst(int num)
63
 
{
64
 
        instr->dst = num;
65
 
}
66
 
 
67
 
static void
68
 
src1(int num)
69
 
{
70
 
        instr->src1 = num;
71
 
}
72
 
 
73
 
static void
74
 
src2(int num)
75
 
{
76
 
        instr->src2 = num;
77
 
}
78
 
 
79
 
static void
80
 
immed(int num)
81
 
{
82
 
        instr->immed = num;
83
 
        instr->has_immed = true;
84
 
}
85
 
 
86
 
static void
87
 
shift(int num)
88
 
{
89
 
        instr->shift = num;
90
 
        instr->has_shift = true;
91
 
}
92
 
 
93
 
static void
94
 
bit(int num)
95
 
{
96
 
        instr->bit = num;
97
 
        instr->has_bit = true;
98
 
}
99
 
 
100
 
static void
101
 
literal(uint32_t num)
102
 
{
103
 
        instr->literal = num;
104
 
        instr->is_literal = true;
105
 
}
106
 
 
107
 
static void
108
 
label(const char *str)
109
 
{
110
 
        instr->label = str;
111
 
}
112
 
 
113
 
%}
114
 
 
115
 
%union {
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        int tok;
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        uint32_t num;
118
 
        const char *str;
119
 
}
120
 
 
121
 
%token <num> T_INT
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%token <num> T_HEX
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%token <num> T_CONTROL_REG
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%token <str> T_LABEL_DECL
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%token <str> T_LABEL_REF
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%token <num> T_LITERAL
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%token <num> T_BIT
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%token <num> T_REGISTER
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130
 
%token <tok> T_OP_NOP
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%token <tok> T_OP_ADD
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%token <tok> T_OP_ADDHI
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%token <tok> T_OP_SUB
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%token <tok> T_OP_SUBHI
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%token <tok> T_OP_AND
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%token <tok> T_OP_OR
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%token <tok> T_OP_XOR
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%token <tok> T_OP_NOT
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%token <tok> T_OP_SHL
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%token <tok> T_OP_USHR
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%token <tok> T_OP_ISHR
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%token <tok> T_OP_ROT
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%token <tok> T_OP_MUL8
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%token <tok> T_OP_MIN
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%token <tok> T_OP_MAX
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%token <tok> T_OP_CMP
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%token <tok> T_OP_MSB
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%token <tok> T_OP_MOV
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%token <tok> T_OP_CWRITE
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%token <tok> T_OP_CREAD
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%token <tok> T_OP_STORE
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%token <tok> T_OP_LOAD
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%token <tok> T_OP_BRNE
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%token <tok> T_OP_BREQ
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%token <tok> T_OP_RET
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%token <tok> T_OP_IRET
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%token <tok> T_OP_CALL
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%token <tok> T_OP_JUMP
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%token <tok> T_OP_WAITIN
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%token <tok> T_OP_PREEMPTLEAVE
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%token <tok> T_OP_SETSECURE
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%token <tok> T_LSHIFT
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%token <tok> T_REP
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%token <num> T_XMOV
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%type <num> reg
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%type <num> immediate
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169
 
%error-verbose
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171
 
%start instrs
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173
 
%%
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175
 
instrs:            instr_or_label instrs
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|                  instr_or_label
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178
 
instr_or_label:    instr_r
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|                  T_REP instr_r    { instr->rep = true; }
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|                  branch_instr
181
 
|                  other_instr
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|                  T_LABEL_DECL   { decl_label($1); }
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/* instructions that can optionally have (rep) flag: */
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instr_r:           alu_instr
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|                  T_XMOV alu_instr { instr->xmov = $1; }
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|                  config_instr
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/* need to special case:
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 * - not (single src, possibly an immediate)
191
 
 * - msb (single src, must be reg)
192
 
 * - mov (single src, plus possibly a shift)
193
 
 * from the other ALU instructions:
194
 
 */
195
 
 
196
 
alu_msb_instr:     T_OP_MSB reg ',' reg        { new_instr($1); dst($2); src2($4); }
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alu_not_instr:     T_OP_NOT reg ',' reg        { new_instr($1); dst($2); src2($4); }
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|                  T_OP_NOT reg ',' immediate  { new_instr($1); dst($2); immed($4); }
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alu_mov_instr:     T_OP_MOV reg ',' reg        { new_instr($1); dst($2); src1($4); }
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|                  T_OP_MOV reg ',' immediate T_LSHIFT immediate {
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                       new_instr($1); dst($2); immed($4); shift($6);
204
 
}
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|                  T_OP_MOV reg ',' immediate  { new_instr($1); dst($2); immed($4); }
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|                  T_OP_MOV reg ',' T_LABEL_REF T_LSHIFT immediate {
207
 
                       new_instr($1); dst($2); label($4); shift($6);
208
 
}
209
 
|                  T_OP_MOV reg ',' T_LABEL_REF { new_instr($1); dst($2); label($4); }
210
 
 
211
 
alu_2src_op:       T_OP_ADD       { new_instr($1); }
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|                  T_OP_ADDHI     { new_instr($1); }
213
 
|                  T_OP_SUB       { new_instr($1); }
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|                  T_OP_SUBHI     { new_instr($1); }
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|                  T_OP_AND       { new_instr($1); }
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|                  T_OP_OR        { new_instr($1); }
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|                  T_OP_XOR       { new_instr($1); }
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|                  T_OP_SHL       { new_instr($1); }
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|                  T_OP_USHR      { new_instr($1); }
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|                  T_OP_ISHR      { new_instr($1); }
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|                  T_OP_ROT       { new_instr($1); }
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|                  T_OP_MUL8      { new_instr($1); }
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|                  T_OP_MIN       { new_instr($1); }
224
 
|                  T_OP_MAX       { new_instr($1); }
225
 
|                  T_OP_CMP       { new_instr($1); }
226
 
 
227
 
alu_2src_instr:    alu_2src_op reg ',' reg ',' reg { dst($2); src1($4); src2($6); }
228
 
|                  alu_2src_op reg ',' reg ',' immediate { dst($2); src1($4); immed($6); }
229
 
 
230
 
alu_instr:         alu_2src_instr
231
 
|                  alu_msb_instr
232
 
|                  alu_not_instr
233
 
|                  alu_mov_instr
234
 
 
235
 
config_op:         T_OP_CWRITE    { new_instr($1); }
236
 
|                  T_OP_CREAD     { new_instr($1); }
237
 
|                  T_OP_LOAD      { new_instr($1); }
238
 
|                  T_OP_STORE     { new_instr($1); }
239
 
 
240
 
config_instr:      config_op reg ',' '[' reg '+' immediate ']' ',' immediate {
241
 
                       src1($2); src2($5); immed($7); bit($10);
242
 
}
243
 
 
244
 
branch_op:         T_OP_BRNE      { new_instr($1); }
245
 
|                  T_OP_BREQ      { new_instr($1); }
246
 
 
247
 
branch_instr:      branch_op reg ',' T_BIT ',' T_LABEL_REF     { src1($2); bit($4); label($6); }
248
 
|                  branch_op reg ',' immediate ',' T_LABEL_REF { src1($2); immed($4); label($6); }
249
 
 
250
 
other_instr:       T_OP_CALL T_LABEL_REF { new_instr($1); label($2); }
251
 
|                  T_OP_PREEMPTLEAVE T_LABEL_REF { new_instr($1); label($2); }
252
 
|                  T_OP_SETSECURE reg ',' T_LABEL_REF { new_instr($1); src1($2); label($4); }
253
 
|                  T_OP_RET              { new_instr($1); }
254
 
|                  T_OP_IRET             { new_instr($1); }
255
 
|                  T_OP_JUMP T_LABEL_REF { new_instr($1); label($2); }
256
 
|                  T_OP_WAITIN           { new_instr($1); }
257
 
|                  T_OP_NOP              { new_instr($1); }
258
 
|                  T_LITERAL             { new_instr($1); literal($1); }
259
 
 
260
 
reg:               T_REGISTER
261
 
 
262
 
immediate:         T_HEX
263
 
|                  T_INT
264
 
|                  T_CONTROL_REG
265
 
|                  T_CONTROL_REG '+' immediate { $$ = $1 + $3; }
266