1 #include <stdlib.h>
2 #include <string.h>
3 #include <sys/types.h>
4
5 #include "radeon_compiler_util.h"
6 #include "radeon_program.h"
7
8 #include "r300_compiler_tests.h"
9 #include "rc_test_helpers.h"
10 #include "unit_test.h"
11
test_rc_inst_can_use_presub(struct test_result * result,int expected,const char * add_str,const char * replace_str)12 static void test_rc_inst_can_use_presub(
13 struct test_result * result,
14 int expected,
15 const char * add_str,
16 const char * replace_str)
17 {
18 struct rc_instruction add_inst, replace_inst;
19 int ret;
20
21 test_begin(result);
22 init_rc_normal_instruction(&add_inst, add_str);
23 init_rc_normal_instruction(&replace_inst, replace_str);
24
25 ret = rc_inst_can_use_presub(&replace_inst, RC_PRESUB_ADD, 0,
26 &replace_inst.U.I.SrcReg[0],
27 &add_inst.U.I.SrcReg[0], &add_inst.U.I.SrcReg[1]);
28
29 test_check(result, ret == expected);
30 }
31
test_runner_rc_inst_can_use_presub(struct test_result * result)32 static void test_runner_rc_inst_can_use_presub(struct test_result * result)
33 {
34
35 /* This tests the case where the source being replace has the same
36 * register file and register index as another source register in the
37 * CMP instruction. A previous version of this function was ignoring
38 * all registers that shared the same file and index as the replacement
39 * register when counting the number of source selects.
40 *
41 * https://bugs.freedesktop.org/show_bug.cgi?id=36527
42 */
43 test_rc_inst_can_use_presub(result, 0,
44 "ADD temp[0].z, temp[6].__x_, const[1].__x_;",
45 "CMP temp[0].y, temp[0]._z__, const[0]._z__, temp[0]._y__;");
46
47
48 /* Testing a random case that should fail
49 *
50 * https://bugs.freedesktop.org/show_bug.cgi?id=36527
51 */
52 test_rc_inst_can_use_presub(result, 0,
53 "ADD temp[3], temp[1], temp[2];",
54 "MAD temp[1], temp[0], const[0].xxxx, -temp[3];");
55
56 /* This tests the case where the arguments of the ADD
57 * instruction share the same register file and index. Normally, we
58 * would need only one source select for these two arguments, but since
59 * they will be part of a presubtract operation we need to use the two
60 * source selects that the presubtract instruction expects
61 * (src0 and src1).
62 *
63 * https://bugs.freedesktop.org/show_bug.cgi?id=36527
64 */
65 test_rc_inst_can_use_presub(result, 0,
66 "ADD temp[3].x, temp[0].x___, temp[0].x___;",
67 "MAD temp[0].xyz, temp[2].xyz_, -temp[3].xxx_, input[5].xyz_;");
68 }
69
radeon_compiler_util_run_tests()70 void radeon_compiler_util_run_tests()
71 {
72 struct test tests[] = {
73 {"rc_inst_can_use_presub()", test_runner_rc_inst_can_use_presub},
74 {NULL, NULL}
75 };
76 run_tests(tests);
77 }
78