| /* builtin_frame_address(n) with n>0 has always been troublesome ... |
| especially when the S/390 packed stack layout comes into play. */ |
| |
| /* { dg-do run } */ |
| /* { dg-options "-O3 -fno-optimize-sibling-calls -mbackchain -mpacked-stack -msoft-float" } */ |
| |
| #ifdef __s390x__ |
| /* 64bit: 3 words to be saved: backchain, r14 and r15 */ |
| #define SAVE_AREA_SIZE 3*8 |
| #else |
| /* 32bit: 4 words to be saved: backchain, r13, r14 and r15 */ |
| #define SAVE_AREA_SIZE 4*4 |
| #endif |
| extern void abort(void); |
| |
| #define EXPAND_CHECK(n) \ |
| void __attribute__((noinline)) \ |
| foo1_##n (void *p) \ |
| { \ |
| if (p - __builtin_frame_address (n) != SAVE_AREA_SIZE) \ |
| abort (); \ |
| } \ |
| void __attribute__((noinline)) \ |
| foo2_##n (void *p) \ |
| { \ |
| if (p - __builtin_frame_address (n) != SAVE_AREA_SIZE) \ |
| abort (); \ |
| foo1_##n (__builtin_frame_address (n)); \ |
| } \ |
| void __attribute__((noinline)) \ |
| foo3_##n () \ |
| { \ |
| foo2_##n (__builtin_frame_address (n)); \ |
| } \ |
| void __attribute__((noinline)) \ |
| foo4_##n () \ |
| { \ |
| foo3_##n (); \ |
| } |
| |
| EXPAND_CHECK (0) |
| EXPAND_CHECK (1) |
| EXPAND_CHECK (2) |
| |
| int |
| main () |
| { |
| foo4_0 (); |
| foo4_1 (); |
| foo4_2 (); |
| |
| return 0; |
| } |