Hongtao Liu <crazy...@gmail.com> writes: >> >> +@opindex mapx-inline-asm-use-gpr32 >> +@item -mapx-inline-asm-use-gpr32 >> +When APX_F enabled, EGPR usage was by default disabled to prevent >> +unexpected EGPR generation in instructions that does not support it. >> +To invoke EGPR usage in inline asm, use this switch to allow EGPR in >> +inline asm, while user should ensure the asm actually supports EGPR. > Please align with > https://gcc.gnu.org/pipermail/gcc-patches/2024-January/642228.html. > Ok after changing that.
BTW I think we would need a way to specify this individually per inline asm statement too. Otherwise a library which wants to use APX inline asm in the header never can do so until all its users set the option, which will be awkward to deploy. Perhaps it could be a magic clobber string. -andi
