https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89803
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Hongtao.liu from comment #1) > Also we can use constraint "vm" instead of "v" for vfpclassp[sd] > instructions. > > ndex: gcc/config/i386/sse.md > =================================================================== > --- gcc/config/i386/sse.md (revision 269868) > +++ gcc/config/i386/sse.md (working copy) > @@ -21101,7 +21101,7 @@ > (define_insn "avx512dq_fpclass<mode><mask_scalar_merge_name>" > [(set (match_operand:<avx512fmaskmode> 0 "register_operand" "=k") > (unspec:<avx512fmaskmode> > - [(match_operand:VF_AVX512VL 1 "register_operand" "v") > + [(match_operand:VF_AVX512VL 1 "register_operand" "vm") > (match_operand:QI 2 "const_0_to_255_operand" "n")] > UNSPEC_FPCLASS))] > "TARGET_AVX512DQ" Either "register_operand" "v", or "vector_operand" "vm" (or nonimmediate_operand etc.).
