2 * Copyright © 2014 Broadcom
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5 * copy of this software and associated documentation files (the "Software"),
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8 * and/or sell copies of the Software, and to permit persons to whom the
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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20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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_FMIN
] = { "fmin", 1, 2 },
42 [QOP_FMAX
] = { "fmax", 1, 2 },
43 [QOP_FMINABS
] = { "fminabs", 1, 2 },
44 [QOP_FMAXABS
] = { "fmaxabs", 1, 2 },
46 [QOP_SEQ
] = { "seq", 1, 2 },
47 [QOP_SNE
] = { "sne", 1, 2 },
48 [QOP_SGE
] = { "sge", 1, 2 },
49 [QOP_SLT
] = { "slt", 1, 2 },
50 [QOP_CMP
] = { "cmp", 1, 3 },
52 [QOP_FTOI
] = { "ftoi", 1, 1 },
53 [QOP_ITOF
] = { "itof", 1, 1 },
54 [QOP_RCP
] = { "rcp", 1, 1 },
55 [QOP_RSQ
] = { "rsq", 1, 1 },
56 [QOP_EXP2
] = { "exp2", 1, 2 },
57 [QOP_LOG2
] = { "log2", 1, 2 },
58 [QOP_PACK_COLORS
] = { "pack_colors", 1, 4 },
59 [QOP_PACK_SCALED
] = { "pack_scaled", 1, 2 },
60 [QOP_VPM_WRITE
] = { "vpm_write", 0, 1, true },
61 [QOP_VPM_READ
] = { "vpm_read", 0, 1, true },
62 [QOP_TLB_DISCARD_SETUP
] = { "discard", 0, 1, true },
63 [QOP_TLB_PASSTHROUGH_Z_WRITE
] = { "tlb_passthrough_z", 0, 0, true },
64 [QOP_TLB_COLOR_WRITE
] = { "tlb_color", 0, 1, true },
65 [QOP_TLB_COLOR_READ
] = { "tlb_color_read", 0, 0, true },
66 [QOP_VARY_ADD_C
] = { "vary_add_c", 1, 1 },
68 [QOP_FRAG_X
] = { "frag_x", 1, 0 },
69 [QOP_FRAG_Y
] = { "frag_y", 1, 0 },
70 [QOP_FRAG_Z
] = { "frag_z", 1, 0 },
71 [QOP_FRAG_RCP_W
] = { "frag_rcp_w", 1, 0 },
73 [QOP_TEX_S
] = { "tex_s", 0, 2 },
74 [QOP_TEX_T
] = { "tex_t", 0, 2 },
75 [QOP_TEX_R
] = { "tex_r", 0, 2 },
76 [QOP_TEX_B
] = { "tex_b", 0, 2 },
77 [QOP_TEX_RESULT
] = { "tex_result", 0, 0 },
78 [QOP_R4_UNPACK_A
] = { "r4_unpack_a", 1, 0 },
79 [QOP_R4_UNPACK_B
] = { "r4_unpack_b", 1, 0 },
80 [QOP_R4_UNPACK_C
] = { "r4_unpack_c", 1, 0 },
81 [QOP_R4_UNPACK_D
] = { "r4_unpack_d", 1, 0 },
85 qir_get_op_name(enum qop qop
)
87 if (qop
< ARRAY_SIZE(qir_op_info
) && qir_op_info
[qop
].name
)
88 return qir_op_info
[qop
].name
;
94 qir_get_op_nsrc(enum qop qop
)
96 if (qop
< ARRAY_SIZE(qir_op_info
) && qir_op_info
[qop
].name
)
97 return qir_op_info
[qop
].nsrc
;
103 qir_has_side_effects(struct qinst
*inst
)
105 for (int i
= 0; i
< qir_get_op_nsrc(inst
->op
); i
++) {
106 if (inst
->src
[i
].file
== QFILE_VARY
||
107 inst
->src
[i
].file
== QFILE_UNIF
)
111 return qir_op_info
[inst
->op
].has_side_effects
;
115 qir_print_reg(struct qreg reg
)
117 const char *files
[] = {
123 if (reg
.file
== QFILE_NULL
)
124 fprintf(stderr
, "null");
126 fprintf(stderr
, "%s%d", files
[reg
.file
], reg
.index
);
130 qir_dump_inst(struct qinst
*inst
)
132 fprintf(stderr
, "%s ", qir_get_op_name(inst
->op
));
134 qir_print_reg(inst
->dst
);
135 for (int i
= 0; i
< qir_get_op_nsrc(inst
->op
); i
++) {
136 fprintf(stderr
, ", ");
137 qir_print_reg(inst
->src
[i
]);
142 qir_dump(struct qcompile
*c
)
144 struct simple_node
*node
;
146 foreach(node
, &c
->instructions
) {
147 struct qinst
*inst
= (struct qinst
*)node
;
149 fprintf(stderr
, "\n");
154 qir_get_temp(struct qcompile
*c
)
158 reg
.file
= QFILE_TEMP
;
159 reg
.index
= c
->num_temps
++;
165 qir_inst(enum qop op
, struct qreg dst
, struct qreg src0
, struct qreg src1
)
167 struct qinst
*inst
= CALLOC_STRUCT(qinst
);
171 inst
->src
= calloc(2, sizeof(inst
->src
[0]));
179 qir_inst4(enum qop op
, struct qreg dst
,
185 struct qinst
*inst
= CALLOC_STRUCT(qinst
);
189 inst
->src
= calloc(4, sizeof(*inst
->src
));
199 qir_emit(struct qcompile
*c
, struct qinst
*inst
)
201 insert_at_tail(&c
->instructions
, &inst
->link
);
205 qir_reg_equals(struct qreg a
, struct qreg b
)
207 return a
.file
== b
.file
&& a
.index
== b
.index
;
211 qir_compile_init(void)
213 struct qcompile
*c
= CALLOC_STRUCT(qcompile
);
215 make_empty_list(&c
->instructions
);
221 qir_compile_destroy(struct qcompile
*c
)
227 qir_get_stage_name(enum qstage stage
)
229 static const char *names
[] = {
230 [QSTAGE_FRAG
] = "FS",
231 [QSTAGE_VERT
] = "VS",
232 [QSTAGE_COORD
] = "CS",
238 #define OPTPASS(func) \
240 bool stage_progress = func(c); \
241 if (stage_progress) { \
243 if (print_opt_debug) { \
245 "QIR opt pass %2d: %s progress\n", \
252 qir_optimize(struct qcompile
*c
)
254 bool print_opt_debug
= false;
258 bool progress
= false;
260 OPTPASS(qir_opt_algebraic
);
261 OPTPASS(qir_opt_copy_propagation
);
262 OPTPASS(qir_opt_dead_code
);