1 /*
2 * Copyright 2011 Tom Stellard <tstellar@gmail.com>
3 *
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial
16 * portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
21 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
22 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <sys/types.h>
31
32 #include "radeon_compiler_util.h"
33 #include "radeon_program.h"
34
35 #include "r300_compiler_tests.h"
36 #include "rc_test_helpers.h"
37 #include "unit_test.h"
38
test_rc_inst_can_use_presub(struct test_result * result,int expected,const char * add_str,const char * replace_str)39 static void test_rc_inst_can_use_presub(
40 struct test_result * result,
41 int expected,
42 const char * add_str,
43 const char * replace_str)
44 {
45 struct rc_instruction add_inst, replace_inst;
46 int ret;
47
48 test_begin(result);
49 init_rc_normal_instruction(&add_inst, add_str);
50 init_rc_normal_instruction(&replace_inst, replace_str);
51
52 ret = rc_inst_can_use_presub(&replace_inst, RC_PRESUB_ADD, 0,
53 &replace_inst.U.I.SrcReg[0],
54 &add_inst.U.I.SrcReg[0], &add_inst.U.I.SrcReg[1]);
55
56 test_check(result, ret == expected);
57 }
58
test_runner_rc_inst_can_use_presub(struct test_result * result)59 static void test_runner_rc_inst_can_use_presub(struct test_result * result)
60 {
61
62 /* This tests the case where the source being replace has the same
63 * register file and register index as another source register in the
64 * CMP instruction. A previous version of this function was ignoring
65 * all registers that shared the same file and index as the replacement
66 * register when counting the number of source selects.
67 *
68 * https://bugs.freedesktop.org/show_bug.cgi?id=36527
69 */
70 test_rc_inst_can_use_presub(result, 0,
71 "ADD temp[0].z, temp[6].__x_, const[1].__x_;",
72 "CMP temp[0].y, temp[0]._z__, const[0]._z__, temp[0]._y__;");
73
74
75 /* Testing a random case that should fail
76 *
77 * https://bugs.freedesktop.org/show_bug.cgi?id=36527
78 */
79 test_rc_inst_can_use_presub(result, 0,
80 "ADD temp[3], temp[1], temp[2];",
81 "MAD temp[1], temp[0], const[0].xxxx, -temp[3];");
82
83 /* This tests the case where the arguments of the ADD
84 * instruction share the same register file and index. Normally, we
85 * would need only one source select for these two arguments, but since
86 * they will be part of a presubtract operation we need to use the two
87 * source selects that the presubtract instruction expects
88 * (src0 and src1).
89 *
90 * https://bugs.freedesktop.org/show_bug.cgi?id=36527
91 */
92 test_rc_inst_can_use_presub(result, 0,
93 "ADD temp[3].x, temp[0].x___, temp[0].x___;",
94 "MAD temp[0].xyz, temp[2].xyz_, -temp[3].xxx_, input[5].xyz_;");
95 }
96
radeon_compiler_util_run_tests()97 unsigned radeon_compiler_util_run_tests()
98 {
99 static struct test tests[] = {
100 {"rc_inst_can_use_presub()", test_runner_rc_inst_can_use_presub},
101 {NULL, NULL}
102 };
103 return run_tests(tests);
104 }
105