> --- ORIG/trunk/gcc/config/sh/sh.h 2007-12-07 09:11:38.000000000 +0900
> +++ LOCAL/trunk/gcc/config/sh/sh.h 2008-02-25 19:09:48.000000000 +0900
> @@ -553,7 +553,7 @@ do {
> \
> {
> \
> sh_cpu = CPU_SH2A; \
> if (TARGET_SH2A_DOUBLE)
> \
> - target_flags |= MASK_FMOVD; \
> + target_flags |= MASK_FMOVD | MASK_ALIGN_DOUBLE;
> \
I've played with this patch and recognize that it's not that
simple, unfortunately. -mdalign changes not only alignment
of doubles but also calling conventions. If you compile
void foo () { bar (1, 0x12345678abcd5555LL); }
with/without -mdalign, for example, you can see that effect.
This behavior with -mdalign is consistent from 3.4.
It seems that such change is too big for SH2A users. Perhaps
this was one reason of not defaulting -mdalign for SH2A.
Regards,
kaz
