https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102811
--- Comment #24 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Uros Bizjak <u...@gcc.gnu.org>: https://gcc.gnu.org/g:ca5667e867252db3c8642ee90f55427149cd92b6 commit r12-5584-gca5667e867252db3c8642ee90f55427149cd92b6 Author: Uros Bizjak <ubiz...@gmail.com> Date: Mon Nov 29 22:16:12 2021 +0100 i386: Fix and improve movhi_internal and movhf_internal some more. An (*v,C) alternative can be added to movhi_internal to directly load HImode constant 0 to xmm register. Also, V4SFmode moves can be used for xmm->xmm moves instead of TImode moves when optimizing for size. Fix invalid %vpinsrw insn template, which needs to duplicate %xmm register for AVX targets. Optimize GPR moves in movhf_internal in the same way as in movhi_internal. Fix pinsrw and pextrw templates for AVX targets. Use sselog1 instead of sselog type. Also, handle TARGET_SSE_PARTIAL_REG_DEPENDENCY and TARGET_SSE_SPLIT_REGS targets. 2021-11-29 Uroš Bizjak <ubiz...@gmail.com> gcc/ChangeLog: PR target/102811 * config/i386/i386.md (*movhi_internal): Introduce (*v,C) alternative. Do not allocate non-GPR registers. Optimize xmm->xmm moves when optimizing for size. Fix vpinsrw insn template. (*movhf_internal): Fix pinsrw and pextrw insn templates for AVX targets. Use sselog1 type instead of sselog. Optimize GPR moves. Optimize xmm->xmm moves for TARGET_SSE_PARTIAL_REG_DEPENDENCY and TARGET_SSE_SPLIT_REGS targets.
