1 /* { dg-do run } */
2 /* { dg-skip-if "" { ! { arm_thumb1_ok || arm_thumb2_ok } } } */
3 /* { dg-options "-mthumb -O2 -mtpcs-leaf-frame" } */
4
5 __attribute__ ((noinline, noclone)) void
clobber_lr_and_highregs(void)6 clobber_lr_and_highregs (void)
7 {
8 __asm__ volatile ("" : : : "r8", "r9", "lr");
9 }
10
11 int
main(void)12 main (void)
13 {
14 int ret;
15
16 __asm volatile ("mov\tr4, #0xf4\n\t"
17 "mov\tr5, #0xf5\n\t"
18 "mov\tr6, #0xf6\n\t"
19 "mov\tr7, #0xf7\n\t"
20 "mov\tr0, #0xf8\n\t"
21 "mov\tr8, r0\n\t"
22 "mov\tr0, #0xfa\n\t"
23 "mov\tr10, r0"
24 : : : "r0", "r4", "r5", "r6", "r7", "r8", "r10");
25
26 clobber_lr_and_highregs ();
27
28 __asm volatile ("cmp\tr4, #0xf4\n\t"
29 "bne\tfail\n\t"
30 "cmp\tr5, #0xf5\n\t"
31 "bne\tfail\n\t"
32 "cmp\tr6, #0xf6\n\t"
33 "bne\tfail\n\t"
34 "cmp\tr7, #0xf7\n\t"
35 "bne\tfail\n\t"
36 "mov\tr0, r8\n\t"
37 "cmp\tr0, #0xf8\n\t"
38 "bne\tfail\n\t"
39 "mov\tr0, r10\n\t"
40 "cmp\tr0, #0xfa\n\t"
41 "bne\tfail\n\t"
42 "mov\t%0, #1\n"
43 "fail:\n\t"
44 "sub\tr0, #1"
45 : "=r" (ret) : :);
46 return ret;
47 }
48