/* 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