https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87832
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Alexander Monakov <amona...@gcc.gnu.org>: https://gcc.gnu.org/g:d4cc7a8c4a623b62dd0d486d7780d91b58eb6f1f commit r13-4093-gd4cc7a8c4a623b62dd0d486d7780d91b58eb6f1f Author: Alexander Monakov <amona...@ispras.ru> Date: Tue Nov 1 17:53:13 2022 +0300 i386: correct x87&SSE multiplication modeling in znver.md All multiplication instructions are fully pipelined, except AVX256 instructions on Zen 1, which issue over two cycles on a 128-bit unit. Correct the model accordingly to reduce combinatorial explosion in automaton tables. Top znver table sizes in insn-automata.o: Before: 30056 r znver1_fp_min_issue_delay 120224 r znver1_fp_transitions After: 6720 r znver1_fp_min_issue_delay 53760 r znver1_fp_transitions gcc/ChangeLog: PR target/87832 * config/i386/znver.md: (znver1_fp_op_mul): Correct cycles in the reservation. (znver1_fp_op_mul_load): Ditto. (znver1_mmx_mul): Ditto. (znver1_mmx_load): Ditto. (znver1_ssemul_ss_ps): Ditto. (znver1_ssemul_ss_ps_load): Ditto. (znver1_ssemul_avx256_ps): Ditto. (znver1_ssemul_avx256_ps_load): Ditto. (znver1_ssemul_sd_pd): Ditto. (znver1_ssemul_sd_pd_load): Ditto. (znver2_ssemul_sd_pd): Ditto. (znver2_ssemul_sd_pd_load): Ditto. (znver1_ssemul_avx256_pd): Ditto. (znver1_ssemul_avx256_pd_load): Ditto. (znver1_sseimul): Ditto. (znver1_sseimul_avx256): Ditto. (znver1_sseimul_load): Ditto. (znver1_sseimul_avx256_load): Ditto. (znver1_sseimul_di): Ditto. (znver1_sseimul_load_di): Ditto.
