https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104004
Kewen Lin <linkw at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2022-01-13
--- Comment #1 from Kewen Lin <linkw at gcc dot gnu.org> ---
Thanks for reporting!
We have the below check in rs6000_expand_set_fpscr_rn_builtin before:
if (rs6000_isa_flags & OPTION_MASK_SOFT_FLOAT)
{
error ("%<__builtin_set_fpscr_rn%> not supported with %<-msoft-float%>");
return const0_rtx;
}
It's supposed to be updated with new attribute nosoft in new bif support.
But grepping in the latest trunk code, there are no bifs using nosoft, I guess
there are something not upstreamed eventually unexpectedly.
The fix seems to add nosoft attribute for __builtin_set_fpscr_rn entry.
Besides, by checking in old bif support, the below ones also require nosoft:
__builtin_set_fpscr_drn (this one needs no32bit)
__builtin_mffsl
__builtin_mtfsb0
__builtin_mtfsb1
