https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89021
--- Comment #39 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> --- Author: hjl Date: Wed May 15 15:27:33 2019 New Revision: 271247 URL: https://gcc.gnu.org/viewcvs?rev=271247&root=gcc&view=rev Log: i386: Emulate MMX ssse3_palignrdi with SSE Emulate MMX version of palignrq with SSE version by concatenating 2 64-bit MMX operands into a single 128-bit SSE operand, followed by SSE psrldq. Only SSE register source operand is allowed. PR target/89021 * config/i386/sse.md (ssse3_palignrdi): Changed to define_insn_and_split to support SSE emulation. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/sse.md
