| /* Test AAPCS layout (alignment). */ |
| |
| /* { dg-do run { target arm_eabi } } */ |
| /* { dg-require-effective-target arm32 } */ |
| /* { dg-options "-O3" } */ |
| |
| #ifndef IN_FRAMEWORK |
| #define TESTFILE "align3.c" |
| |
| /* Struct will be aligned to 8. */ |
| struct s |
| { |
| int x; |
| /* 4 bytes padding here. */ |
| __attribute__((aligned (8))) int y; |
| /* 4 bytes padding here. */ |
| }; |
| |
| typedef struct s __attribute__((aligned (4))) underaligned; |
| |
| #define EXPECTED_STRUCT_SIZE 16 |
| extern void link_failure (void); |
| int |
| foo () |
| { |
| /* Optimization gets rid of this before linking. */ |
| if (sizeof (struct s) != EXPECTED_STRUCT_SIZE) |
| link_failure (); |
| } |
| |
| underaligned a = { 1, 4 }; |
| underaligned b = { 9, 16 }; |
| |
| #include "abitest.h" |
| #else |
| ARG (int, 3, R0) |
| /* Object alignment is 8, so split between 2 regs and 8 on stack. */ |
| ARG (underaligned, a, R2) |
| ARG (int, 6, STACK + 8) |
| /* Object alignment is 8, so skip over STACK + 12. */ |
| LAST_ARG (underaligned, b, STACK + 16) |
| #endif |