https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105052
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@gcc.gnu.org>: https://gcc.gnu.org/g:99591cf43fc1da0fb72b3da02ba937ba30bd2bf2 commit r12-7828-g99591cf43fc1da0fb72b3da02ba937ba30bd2bf2 Author: H.J. Lu <hjl.to...@gmail.com> Date: Thu Mar 24 21:41:12 2022 -0700 x86: Use x constraint on SSSE3 patterns with MMX operands Since PHADDW/PHADDD/PHADDSW/PHSUBW/PHSUBD/PHSUBSW/PSIGNB/PSIGNW/PSIGND have no AVX512 version, replace the "Yv" register constraint with the "x" register constraint. PR target/105052 * config/i386/sse.md (ssse3_ph<plusminus_mnemonic>wv4hi3): Replace "Yv" with "x". (ssse3_ph<plusminus_mnemonic>dv2si3): Likewise. (ssse3_psign<mode>3): Likewise.