https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101846
--- Comment #6 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:faf2b6bc527dff31725dde5538ffff1c92688047 commit r12-2919-gfaf2b6bc527dff31725dde5538ffff1c92688047 Author: liuhongt <hongtao....@intel.com> Date: Mon Aug 16 11:16:52 2021 +0800 Optimize __builtin_shuffle_vector. 1. Support vpermw/vpermb in ix86_expand_vec_one_operand_perm_avx512. 2. Support 256/128-bits vpermi2b ix86_expand_vec_perm_vpermt2. 3. Add define_insn_and_split to optimize specific vector permutation to opmov{dw,wb,qd}. gcc/ChangeLog: PR target/101846 * config/i386/i386-expand.c (ix86_expand_vec_perm_vpermt2): Support vpermi2b for V32QI/V16QImode. (ix86_extract_perm_from_pool_constant): New function. (ix86_expand_vec_one_operand_perm_avx512): Support vpermw/vpermb under TARGET_AVX512BW/TARGET_AVX512VBMI. (expand_vec_perm_1): Adjust comments for upper. * config/i386/i386-protos.h (ix86_extract_perm_from_pool_constant): New declare. * config/i386/predicates.md (permvar_truncate_operand): New predicate. (pshufb_truncv4siv4hi_operand): Ditto. (pshufb_truncv8hiv8qi_operand): Ditto. * config/i386/sse.md (*avx512bw_permvar_truncv16siv16hi_1): New pre_reload define_insn_and_split. (*avx512f_permvar_truncv8siv8hi_1): Ditto. (*avx512f_vpermvar_truncv8div8si_1): Ditto. (*avx512f_permvar_truncv32hiv32qi_1): Ditto. (*avx512f_permvar_truncv16hiv16qi_1): Ditto. (*avx512f_permvar_truncv4div4si_1): Ditto. (*avx512f_pshufb_truncv8hiv8qi_1): Ditto. (*avx512f_pshufb_truncv4siv4hi_1): Ditto. (*avx512f_pshufd_truncv2div2si_1): Ditto. gcc/testsuite/ChangeLog: PR target/101846 * gcc.target/i386/pr101846-2.c: New test. * gcc.target/i386/pr101846-3.c: New test. * gcc.target/i386/pr101846-4.c: New test.
