diff options
Diffstat (limited to 'gcc/config/i386/i386.h')
| -rw-r--r-- | gcc/config/i386/i386.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 5c2046a49d7..f886e8fcc6d 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -792,7 +792,15 @@ extern int x86_prefetch_sse; #define PARM_BOUNDARY BITS_PER_WORD /* Boundary (in *bits*) on which stack pointer should be aligned. */ -#define STACK_BOUNDARY BITS_PER_WORD +/* APPLE LOCAL begin compiler should obey -mpreferred-stack-boundary (radar 3232990) */ +/* prefer * #define STACK_BOUNDARY ((ix86_preferred_stack_boundary > 128) ? 128 : ix86_preferred_stack_boundary) */ +/* We're going to extremes to yield a result of indeterminite + signedness here; this macro will be expanded in signed and + unsigned contexts, and mixed signedness induces fatal + warnings. Radar 3941684. */ +#define STACK_BOUNDARY ((ix86_preferred_stack_boundary >= 128) ? 128 : \ + (ix86_preferred_stack_boundary == 64) ? 64 : 32) +/* APPLE LOCAL end compiler should obey -mpreferred-stack-boundary (radar 3232990) */ /* Boundary (in *bits*) on which the stack pointer prefers to be aligned; the compiler cannot rely on having this alignment. */ @@ -843,7 +851,8 @@ extern int x86_prefetch_sse; #define BIGGEST_FIELD_ALIGNMENT 32 #endif #else -#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ +/* APPLE LOCAL Macintosh alignment */ +#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED, FIRST_FIELD_P) \ x86_field_alignment (FIELD, COMPUTED) #endif |