https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112092
--- Comment #15 from Demin Han <deminhan at gcc dot gnu.org> --- (In reply to Maciej W. Rozycki from comment #14) > This is invalid code, because you haven't told GCC your inline assembly > makes use of v8 or v24. You need to specify inputs and outputs correctly > or otherwise the compiler will consider these registers unchanged by the > asm statements and may even insert other code between the statements that > makes use of v8 or v24. > > Does the issue still trigger with the inputs and outputs corrected? Hi, I think this is not related to register. vfmacc.vv is illegal instruction when SEW=8 currently. vsetvl pass can't change the sew and lmul accordingly because of inline asm. Regards, Demin
