2 * Copyright © 2014 Broadcom
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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24 #include "util/u_memory.h"
25 #include "util/u_simple_list.h"
33 bool has_side_effects
;
36 static const struct qir_op_info qir_op_info
[] = {
37 [QOP_MOV
] = { "mov", 1, 1 },
38 [QOP_FADD
] = { "fadd", 1, 2 },
39 [QOP_FSUB
] = { "fsub", 1, 2 },
40 [QOP_FMUL
] = { "fmul", 1, 2 },
41 [QOP_MUL24
] = { "mul24", 1, 2 },
42 [QOP_FMIN
] = { "fmin", 1, 2 },
43 [QOP_FMAX
] = { "fmax", 1, 2 },
44 [QOP_FMINABS
] = { "fminabs", 1, 2 },
45 [QOP_FMAXABS
] = { "fmaxabs", 1, 2 },
46 [QOP_FTOI
] = { "ftoi", 1, 1 },
47 [QOP_ITOF
] = { "itof", 1, 1 },
48 [QOP_ADD
] = { "add", 1, 2 },
49 [QOP_SUB
] = { "sub", 1, 2 },
50 [QOP_SHR
] = { "shr", 1, 2 },
51 [QOP_ASR
] = { "asr", 1, 2 },
52 [QOP_SHL
] = { "shl", 1, 2 },
53 [QOP_MIN
] = { "min", 1, 2 },
54 [QOP_MAX
] = { "max", 1, 2 },
55 [QOP_AND
] = { "and", 1, 2 },
56 [QOP_OR
] = { "or", 1, 2 },
57 [QOP_XOR
] = { "xor", 1, 2 },
58 [QOP_NOT
] = { "not", 1, 1 },
60 [QOP_SF
] = { "sf", 0, 1 },
61 [QOP_SEL_X_0_NS
] = { "fsel_x_0_ns", 1, 1 },
62 [QOP_SEL_X_0_NC
] = { "fsel_x_0_nc", 1, 1 },
63 [QOP_SEL_X_0_ZS
] = { "fsel_x_0_zs", 1, 1 },
64 [QOP_SEL_X_0_ZC
] = { "fsel_x_0_zc", 1, 1 },
65 [QOP_SEL_X_Y_NS
] = { "fsel_x_y_ns", 1, 2 },
66 [QOP_SEL_X_Y_NC
] = { "fsel_x_y_nc", 1, 2 },
67 [QOP_SEL_X_Y_ZS
] = { "fsel_x_y_zs", 1, 2 },
68 [QOP_SEL_X_Y_ZC
] = { "fsel_x_y_zc", 1, 2 },
70 [QOP_RCP
] = { "rcp", 1, 1 },
71 [QOP_RSQ
] = { "rsq", 1, 1 },
72 [QOP_EXP2
] = { "exp2", 1, 2 },
73 [QOP_LOG2
] = { "log2", 1, 2 },
74 [QOP_PACK_COLORS
] = { "pack_colors", 1, 4 },
75 [QOP_PACK_SCALED
] = { "pack_scaled", 1, 2 },
76 [QOP_VPM_WRITE
] = { "vpm_write", 0, 1, true },
77 [QOP_VPM_READ
] = { "vpm_read", 0, 1, true },
78 [QOP_TLB_DISCARD_SETUP
] = { "discard", 0, 1, true },
79 [QOP_TLB_PASSTHROUGH_Z_WRITE
] = { "tlb_passthrough_z", 0, 0, true },
80 [QOP_TLB_COLOR_WRITE
] = { "tlb_color", 0, 1, true },
81 [QOP_TLB_COLOR_READ
] = { "tlb_color_read", 0, 0, true },
82 [QOP_VARY_ADD_C
] = { "vary_add_c", 1, 1 },
84 [QOP_FRAG_X
] = { "frag_x", 1, 0 },
85 [QOP_FRAG_Y
] = { "frag_y", 1, 0 },
86 [QOP_FRAG_Z
] = { "frag_z", 1, 0 },
87 [QOP_FRAG_RCP_W
] = { "frag_rcp_w", 1, 0 },
89 [QOP_TEX_S
] = { "tex_s", 0, 2 },
90 [QOP_TEX_T
] = { "tex_t", 0, 2 },
91 [QOP_TEX_R
] = { "tex_r", 0, 2 },
92 [QOP_TEX_B
] = { "tex_b", 0, 2 },
93 [QOP_TEX_RESULT
] = { "tex_result", 0, 0 },
94 [QOP_R4_UNPACK_A
] = { "r4_unpack_a", 1, 0 },
95 [QOP_R4_UNPACK_B
] = { "r4_unpack_b", 1, 0 },
96 [QOP_R4_UNPACK_C
] = { "r4_unpack_c", 1, 0 },
97 [QOP_R4_UNPACK_D
] = { "r4_unpack_d", 1, 0 },
101 qir_get_op_name(enum qop qop
)
103 if (qop
< ARRAY_SIZE(qir_op_info
) && qir_op_info
[qop
].name
)
104 return qir_op_info
[qop
].name
;
110 qir_get_op_nsrc(enum qop qop
)
112 if (qop
< ARRAY_SIZE(qir_op_info
) && qir_op_info
[qop
].name
)
113 return qir_op_info
[qop
].nsrc
;
119 qir_has_side_effects(struct qinst
*inst
)
121 for (int i
= 0; i
< qir_get_op_nsrc(inst
->op
); i
++) {
122 if (inst
->src
[i
].file
== QFILE_VARY
||
123 inst
->src
[i
].file
== QFILE_UNIF
)
127 return qir_op_info
[inst
->op
].has_side_effects
;
131 qir_depends_on_flags(struct qinst
*inst
)
149 qir_writes_r4(struct qinst
*inst
)
153 case QOP_TLB_COLOR_READ
:
165 qir_reads_r4(struct qinst
*inst
)
168 case QOP_R4_UNPACK_A
:
169 case QOP_R4_UNPACK_B
:
170 case QOP_R4_UNPACK_C
:
171 case QOP_R4_UNPACK_D
:
179 qir_print_reg(struct qreg reg
)
181 const char *files
[] = {
187 if (reg
.file
== QFILE_NULL
)
188 fprintf(stderr
, "null");
190 fprintf(stderr
, "%s%d", files
[reg
.file
], reg
.index
);
194 qir_dump_inst(struct qinst
*inst
)
196 fprintf(stderr
, "%s ", qir_get_op_name(inst
->op
));
198 qir_print_reg(inst
->dst
);
199 for (int i
= 0; i
< qir_get_op_nsrc(inst
->op
); i
++) {
200 fprintf(stderr
, ", ");
201 qir_print_reg(inst
->src
[i
]);
206 qir_dump(struct vc4_compile
*c
)
208 struct simple_node
*node
;
210 foreach(node
, &c
->instructions
) {
211 struct qinst
*inst
= (struct qinst
*)node
;
213 fprintf(stderr
, "\n");
218 qir_get_temp(struct vc4_compile
*c
)
222 reg
.file
= QFILE_TEMP
;
223 reg
.index
= c
->num_temps
++;
229 qir_inst(enum qop op
, struct qreg dst
, struct qreg src0
, struct qreg src1
)
231 struct qinst
*inst
= CALLOC_STRUCT(qinst
);
235 inst
->src
= calloc(2, sizeof(inst
->src
[0]));
243 qir_inst4(enum qop op
, struct qreg dst
,
249 struct qinst
*inst
= CALLOC_STRUCT(qinst
);
253 inst
->src
= calloc(4, sizeof(*inst
->src
));
263 qir_emit(struct vc4_compile
*c
, struct qinst
*inst
)
265 insert_at_tail(&c
->instructions
, &inst
->link
);
269 qir_reg_equals(struct qreg a
, struct qreg b
)
271 return a
.file
== b
.file
&& a
.index
== b
.index
;
275 qir_compile_init(void)
277 struct vc4_compile
*c
= CALLOC_STRUCT(vc4_compile
);
279 make_empty_list(&c
->instructions
);
285 qir_compile_destroy(struct vc4_compile
*c
)
291 qir_get_stage_name(enum qstage stage
)
293 static const char *names
[] = {
294 [QSTAGE_FRAG
] = "FS",
295 [QSTAGE_VERT
] = "VS",
296 [QSTAGE_COORD
] = "CS",
302 #define OPTPASS(func) \
304 bool stage_progress = func(c); \
305 if (stage_progress) { \
307 if (print_opt_debug) { \
309 "QIR opt pass %2d: %s progress\n", \
316 qir_optimize(struct vc4_compile
*c
)
318 bool print_opt_debug
= false;
322 bool progress
= false;
324 OPTPASS(qir_opt_algebraic
);
325 OPTPASS(qir_opt_cse
);
326 OPTPASS(qir_opt_copy_propagation
);
327 OPTPASS(qir_opt_dead_code
);