http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46208
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |ebotcazou at gcc dot
| |gnu.org
--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-10-28
10:57:12 UTC ---
> we modified the function *TARGET_PROMOTE_PROTOTYPES
> *(http://goo.gl/2pQQ) and set it to the default value which is FALSE.
>
> static bool
> sparc_promote_prototypes (const_tree fntype ATTRIBUTE_UNUSED)
> {
> return TARGET_ARCH32 ? true : false;
> }
>
> was replaced by
>
> static bool
> sparc_promote_prototypes (const_tree fntype ATTRIBUTE_UNUSED)
> {
> return false;
> }
This will result in violations of the ABI without further changes (garbage in
the upper part of the argument registers). You need the patch I'm about to
attach as a minimum, but it cannot eliminate the extensions in the caller
alone, more work is required in the back-end. At which point changing
TARGET_PROMOTE_PROTOTYPES will probably have only a marginal effect.
