| /* { dg-do compile } */ |
| /* { dg-options "-O2 -mstrict-align" } */ |
| |
| struct s { char x[255]; }; |
| void foo (struct s *); |
| void bar (void) { struct s s1 = {}; foo (&s1); } |
| |
| /* memset (s1 = {}, sizeof = 255) should be expanded out |
| such that there are no overlap stores when -mstrict-align |
| is in use. |
| so 7 pairs of 16 bytes stores (224 bytes). |
| 1 16 byte stores |
| 1 8 byte store |
| 1 4 byte store |
| 1 2 byte store |
| 1 1 byte store |
| */ |
| |
| /* { dg-final { scan-assembler-times "stp\tq" 7 } } */ |
| /* { dg-final { scan-assembler-times "str\tq" 1 } } */ |
| /* { dg-final { scan-assembler-times "str\txzr" 1 } } */ |
| /* { dg-final { scan-assembler-times "str\twzr" 1 } } */ |
| /* { dg-final { scan-assembler-times "strh\twzr" 1 } } */ |
| /* { dg-final { scan-assembler-times "strb\twzr" 1 } } */ |
| |
| /* Also one store pair for the frame-pointer and the LR. */ |
| /* { dg-final { scan-assembler-times "stp\tx" 1 } } */ |
| |
