https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91103
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuho...@gcc.gnu.org>: https://gcc.gnu.org/g:60eec23b5eda0f350e572586eee738eab0804a74 commit r12-3425-g60eec23b5eda0f350e572586eee738eab0804a74 Author: liuhongt <hongtao....@intel.com> Date: Wed Sep 8 16:19:37 2021 +0800 Optimize vec_extract for 256/512-bit vector when index exceeds the lower 128 bits. - vextracti32x8 $0x1, %zmm0, %ymm0 - vmovd %xmm0, %eax + valignd $8, %zmm0, %zmm0, %zmm1 + vmovd %xmm1, %eax - vextracti32x8 $0x1, %zmm0, %ymm0 - vextracti128 $0x1, %ymm0, %xmm0 - vpextrd $3, %xmm0, %eax + valignd $15, %zmm0, %zmm0, %zmm1 + vmovd %xmm1, %eax - vextractf64x2 $0x1, %ymm0, %xmm0 + valignq $2, %ymm0, %ymm0, %ymm0 - vextractf64x4 $0x1, %zmm0, %ymm0 - vextractf64x2 $0x1, %ymm0, %xmm0 - vunpckhpd %xmm0, %xmm0, %xmm0 + valignq $7, %zmm0, %zmm0, %zmm0 gcc/ChangeLog: PR target/91103 * config/i386/sse.md (*vec_extract<mode><ssescalarmodelower>_valign): New define_insn. gcc/testsuite/ChangeLog: PR target/91103 * gcc.target/i386/pr91103-1.c: New test. * gcc.target/i386/pr91103-2.c: New test.
