1 /*
2 * Copyright (C) 2018-2019 Alyssa Rosenzweig <alyssa@rosenzweig.io>
3 * Copyright (C) 2019-2020 Collabora, Ltd.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 #include <math.h>
26 #include <inttypes.h>
27 #include "util/half_float.h"
28 #include "midgard.h"
29 #include "helpers.h"
30 #include "midgard_ops.h"
31
32 void
mir_print_constant_component(FILE * fp,const midgard_constants * consts,unsigned c,midgard_reg_mode reg_mode,bool half,unsigned mod,midgard_alu_op op)33 mir_print_constant_component(FILE *fp, const midgard_constants *consts, unsigned c,
34 midgard_reg_mode reg_mode, bool half,
35 unsigned mod, midgard_alu_op op)
36 {
37 bool is_sint = false, is_uint = false, is_hex = false;
38 const char *opname = alu_opcode_props[op].name;
39
40 bool is_int = midgard_is_integer_op(op);
41
42 /* Add a sentinel name to prevent crashing */
43 if (!opname)
44 opname = "unknown";
45
46 if (is_int) {
47 is_uint = midgard_is_unsigned_op(op);
48
49 if (!is_uint) {
50 /* Bit ops are easier to follow when the constant is printed in
51 * hexadecimal. Other operations starting with a 'i' are
52 * considered to operate on signed integers. That might not
53 * be true for all of them, but it's good enough for traces.
54 */
55 if (op >= midgard_alu_op_iand &&
56 op <= midgard_alu_op_ipopcnt)
57 is_hex = true;
58 else
59 is_sint = true;
60 }
61 }
62
63 if (half)
64 reg_mode--;
65
66 switch (reg_mode) {
67 case midgard_reg_mode_64:
68 if (is_sint) {
69 fprintf(fp, "%"PRIi64, consts->i64[c]);
70 } else if (is_uint) {
71 fprintf(fp, "%"PRIu64, consts->u64[c]);
72 } else if (is_hex) {
73 fprintf(fp, "0x%"PRIX64, consts->u64[c]);
74 } else {
75 double v = consts->f64[c];
76
77 if (mod & MIDGARD_FLOAT_MOD_ABS) v = fabs(v);
78 if (mod & MIDGARD_FLOAT_MOD_NEG) v = -v;
79
80 printf("%g", v);
81 }
82 break;
83
84 case midgard_reg_mode_32:
85 if (is_sint) {
86 int64_t v;
87
88 if (half && mod == midgard_int_zero_extend)
89 v = consts->u32[c];
90 else if (half && mod == midgard_int_left_shift)
91 v = (uint64_t)consts->u32[c] << 32;
92 else
93 v = consts->i32[c];
94
95 fprintf(fp, "%"PRIi64, v);
96 } else if (is_uint || is_hex) {
97 uint64_t v;
98
99 if (half && mod == midgard_int_left_shift)
100 v = (uint64_t)consts->u32[c] << 32;
101 else
102 v = consts->u32[c];
103
104 fprintf(fp, is_uint ? "%"PRIu64 : "0x%"PRIX64, v);
105 } else {
106 float v = consts->f32[c];
107
108 if (mod & MIDGARD_FLOAT_MOD_ABS) v = fabsf(v);
109 if (mod & MIDGARD_FLOAT_MOD_NEG) v = -v;
110
111 fprintf(fp, "%g", v);
112 }
113 break;
114
115 case midgard_reg_mode_16:
116 if (is_sint) {
117 int32_t v;
118
119 if (half && mod == midgard_int_zero_extend)
120 v = consts->u16[c];
121 else if (half && mod == midgard_int_left_shift)
122 v = (uint32_t)consts->u16[c] << 16;
123 else
124 v = consts->i16[c];
125
126 fprintf(fp, "%d", v);
127 } else if (is_uint || is_hex) {
128 uint32_t v;
129
130 if (half && mod == midgard_int_left_shift)
131 v = (uint32_t)consts->u16[c] << 16;
132 else
133 v = consts->u16[c];
134
135 fprintf(fp, is_uint ? "%u" : "0x%X", v);
136 } else {
137 float v = _mesa_half_to_float(consts->f16[c]);
138
139 if (mod & MIDGARD_FLOAT_MOD_ABS) v = fabsf(v);
140 if (mod & MIDGARD_FLOAT_MOD_NEG) v = -v;
141
142 fprintf(fp, "%g", v);
143 }
144 break;
145
146 case midgard_reg_mode_8:
147 fprintf(fp, "0x%X", consts->u8[c]);
148
149 if (mod)
150 fprintf(fp, " /* %u */", mod);
151
152 assert(!half); /* No 4-bit */
153
154 break;
155 }
156 }
157
158
159