1 /*
2 * Copyright(c) 2019-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include <stdio.h>
19 #include <stdint.h>
20
21 int err;
22
23 #include "hex_test.h"
24
25 /*
26 * Make sure that two stores in the same packet honor proper
27 * semantics: slot 1 executes first, then slot 0.
28 * This is important when the addresses overlap.
29 */
dual_stores(int32_t * p,int8_t * q,int32_t x,int8_t y)30 static inline void dual_stores(int32_t *p, int8_t *q, int32_t x, int8_t y)
31 {
32 asm volatile("{\n\t"
33 " memw(%0) = %2\n\t"
34 " memb(%1) = %3\n\t"
35 "}\n"
36 :: "r"(p), "r"(q), "r"(x), "r"(y)
37 : "memory");
38 }
39
40 typedef union {
41 int32_t word;
42 int8_t byte;
43 } Dual;
44
main()45 int main()
46 {
47 Dual d;
48
49 d.word = ~0;
50 dual_stores(&d.word, &d.byte, 0x12345678, 0xff);
51 check32(d.word, 0x123456ff);
52
53 puts(err ? "FAIL" : "PASS");
54 return err;
55 }
56