https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114590
--- Comment #4 from GCC 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:06a7e7514af67d9f3c51fe7a592b5166da791e2f commit r14-9820-g06a7e7514af67d9f3c51fe7a592b5166da791e2f Author: H.J. Lu <hjl.to...@gmail.com> Date: Fri Apr 5 08:56:15 2024 -0700 x86: Use explicit shift count in double-precision shifts Don't use implicit shift count in double-precision shifts in AT&T syntax since they aren't in Intel SDM. Keep the 's' modifier for backward compatibility with inline asm statements. PR target/114590 * config/i386/i386.md (x86_64_shld): Use explicit shift count in AT&T syntax. (x86_64_shld_ndd): Likewise. (x86_shld): Likewise. (x86_shld_ndd): Likewise. (x86_64_shrd): Likewise. (x86_64_shrd_ndd): Likewise. (x86_shrd): Likewise. (x86_shrd_ndd): Likewise.