public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/98856] [11 Regression] botan AES-128/XTS is slower by ~17% since r11-6649-g285fa338b06b804e72997c4d876ecf08a9c083af Date: Fri, 05 Feb 2021 17:55:52 +0000 [thread overview] Message-ID: <bug-98856-4-ggxrQ6Kqzu@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-98856-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98856 --- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> --- WIP that implements that. Except that we need some permutation expansion improvements, both for the SSE2 V4SImode permutation cases and for AVX2 V8SImode permutation cases. --- gcc/config/i386/sse.md.jj 2021-02-05 14:32:44.175463716 +0100 +++ gcc/config/i386/sse.md 2021-02-05 18:49:29.621590903 +0100 @@ -12458,7 +12458,7 @@ (set_attr "prefix" "orig,vex") (set_attr "mode" "<sseinsnmode>")]) -(define_insn "ashr<mode>3<mask_name>" +(define_insn "<mask_codefor>ashr<mode>3<mask_name>" [(set (match_operand:VI248_AVX512BW_AVX512VL 0 "register_operand" "=v,v") (ashiftrt:VI248_AVX512BW_AVX512VL (match_operand:VI248_AVX512BW_AVX512VL 1 "nonimmediate_operand" "v,vm") @@ -12472,6 +12472,125 @@ (const_string "0"))) (set_attr "mode" "<sseinsnmode>")]) +(define_expand "ashr<mode>3" + [(set (match_operand:VI248_AVX512BW 0 "register_operand") + (ashiftrt:VI248_AVX512BW + (match_operand:VI248_AVX512BW 1 "nonimmediate_operand") + (match_operand:DI 2 "nonmemory_operand")))] + "TARGET_AVX512F") + +(define_expand "ashrv4di3" + [(set (match_operand:V4DI 0 "register_operand") + (ashiftrt:V4DI + (match_operand:V4DI 1 "nonimmediate_operand") + (match_operand:DI 2 "nonmemory_operand")))] + "TARGET_AVX2" +{ + if (!TARGET_AVX512VL) + { + if (CONST_INT_P (operands[2]) && UINTVAL (operands[2]) >= 63) + { + rtx zero = force_reg (V4DImode, CONST0_RTX (V4DImode)); + emit_insn (gen_avx2_gtv4di3 (operands[0], zero, operands[1])); + DONE; + } + if (operands[2] == const0_rtx) + { + emit_move_insn (operands[0], operands[1]); + DONE; + } + if (CONST_INT_P (operands[2])) + { + vec_perm_builder sel (8, 8, 1); + sel.quick_grow (8); + rtx arg0, arg1; + rtx op1 = lowpart_subreg (V8SImode, operands[1], V4DImode); + rtx target = gen_reg_rtx (V8SImode); + if (INTVAL (operands[2]) > 32) + { + arg0 = gen_reg_rtx (V8SImode); + arg1 = gen_reg_rtx (V8SImode); + emit_insn (gen_ashrv8si3 (arg1, op1, GEN_INT (31))); + emit_insn (gen_ashrv8si3 (arg0, op1, + GEN_INT (INTVAL (operands[2]) - 32))); + sel[0] = 1; + sel[1] = 9; + sel[2] = 3; + sel[3] = 11; + sel[4] = 5; + sel[5] = 13; + sel[6] = 7; + sel[7] = 15; + } + else if (INTVAL (operands[2]) == 32) + { + arg0 = op1; + arg1 = gen_reg_rtx (V8SImode); + emit_insn (gen_ashrv8si3 (arg1, op1, GEN_INT (31))); + sel[0] = 1; + sel[1] = 9; + sel[2] = 3; + sel[3] = 11; + sel[4] = 5; + sel[5] = 13; + sel[6] = 7; + sel[7] = 15; + } + else + { + arg0 = gen_reg_rtx (V2DImode); + arg1 = gen_reg_rtx (V4SImode); + emit_insn (gen_lshrv2di3 (arg0, operands[1], operands[2])); + emit_insn (gen_ashrv4si3 (arg1, op1, operands[2])); + arg0 = lowpart_subreg (V4SImode, arg0, V2DImode); + sel[0] = 0; + sel[1] = 9; + sel[2] = 2; + sel[3] = 11; + sel[4] = 4; + sel[5] = 13; + sel[6] = 6; + sel[7] = 15; + } + vec_perm_indices indices (sel, 2, 8); + bool ok = targetm.vectorize.vec_perm_const (V8SImode, target, + arg0, arg1, indices); + gcc_assert (ok); + emit_move_insn (operands[0], + lowpart_subreg (V4DImode, target, V8SImode)); + DONE; + } + + rtx zero = force_reg (V4DImode, CONST0_RTX (V4DImode)); + rtx zero_or_all_ones = gen_reg_rtx (V4DImode); + emit_insn (gen_avx2_gtv4di3 (zero_or_all_ones, zero, operands[1])); + rtx lshr_res = gen_reg_rtx (V4DImode); + emit_insn (gen_lshrv4di3 (lshr_res, operands[1], operands[2])); + rtx ashl_res = gen_reg_rtx (V4DImode); + rtx amount; + if (TARGET_64BIT) + { + amount = gen_reg_rtx (DImode); + emit_insn (gen_subdi3 (amount, force_reg (DImode, GEN_INT (64)), + operands[2])); + } + else + { + rtx temp = gen_reg_rtx (SImode); + emit_insn (gen_subsi3 (temp, force_reg (SImode, GEN_INT (64)), + lowpart_subreg (SImode, operands[2], + DImode))); + amount = gen_reg_rtx (V4SImode); + emit_insn (gen_vec_setv4si_0 (amount, CONST0_RTX (V4SImode), + temp)); + } + amount = lowpart_subreg (DImode, amount, GET_MODE (amount)); + emit_insn (gen_ashlv4di3 (ashl_res, zero_or_all_ones, amount)); + emit_insn (gen_iorv4di3 (operands[0], lshr_res, ashl_res)); + DONE; + } +}) + (define_insn "<mask_codefor><insn><mode>3<mask_name>" [(set (match_operand:VI248_AVX512BW_2 0 "register_operand" "=v,v") (any_lshift:VI248_AVX512BW_2 @@ -20313,11 +20432,13 @@ (ashiftrt:V2DI (match_operand:V2DI 1 "register_operand") (match_operand:DI 2 "nonmemory_operand")))] - "TARGET_SSE4_2" + "TARGET_SSE2" { if (!TARGET_AVX512VL) { - if (CONST_INT_P (operands[2]) && INTVAL (operands[2]) == 63) + if (TARGET_SSE4_2 + && CONST_INT_P (operands[2]) + && UINTVAL (operands[2]) >= 63) { rtx zero = force_reg (V2DImode, CONST0_RTX (V2DImode)); emit_insn (gen_sse4_2_gtv2di3 (operands[0], zero, operands[1])); @@ -20328,6 +20449,65 @@ emit_move_insn (operands[0], operands[1]); DONE; } + if (CONST_INT_P (operands[2]) + && (!TARGET_XOP || UINTVAL (operands[2]) >= 63)) + { + vec_perm_builder sel (4, 4, 1); + sel.quick_grow (4); + rtx arg0, arg1; + rtx op1 = lowpart_subreg (V4SImode, operands[1], V2DImode); + rtx target = gen_reg_rtx (V4SImode); + if (UINTVAL (operands[2]) >= 63) + { + arg0 = arg1 = gen_reg_rtx (V4SImode); + emit_insn (gen_ashrv4si3 (arg0, op1, GEN_INT (31))); + sel[0] = 1; + sel[1] = 1; + sel[2] = 3; + sel[3] = 3; + } + else if (INTVAL (operands[2]) > 32) + { + arg0 = gen_reg_rtx (V4SImode); + arg1 = gen_reg_rtx (V4SImode); + emit_insn (gen_ashrv4si3 (arg1, op1, GEN_INT (31))); + emit_insn (gen_ashrv4si3 (arg0, op1, + GEN_INT (INTVAL (operands[2]) - 32))); + sel[0] = 1; + sel[1] = 5; + sel[2] = 3; + sel[3] = 7; + } + else if (INTVAL (operands[2]) == 32) + { + arg0 = op1; + arg1 = gen_reg_rtx (V4SImode); + emit_insn (gen_ashrv4si3 (arg1, op1, GEN_INT (31))); + sel[0] = 1; + sel[1] = 5; + sel[2] = 3; + sel[3] = 7; + } + else + { + arg0 = gen_reg_rtx (V2DImode); + arg1 = gen_reg_rtx (V4SImode); + emit_insn (gen_lshrv2di3 (arg0, operands[1], operands[2])); + emit_insn (gen_ashrv4si3 (arg1, op1, operands[2])); + arg0 = lowpart_subreg (V4SImode, arg0, V2DImode); + sel[0] = 0; + sel[1] = 5; + sel[2] = 2; + sel[3] = 7; + } + vec_perm_indices indices (sel, arg0 != arg1 ? 2 : 1, 4); + bool ok = targetm.vectorize.vec_perm_const (V4SImode, target, + arg0, arg1, indices); + gcc_assert (ok); + emit_move_insn (operands[0], + lowpart_subreg (V2DImode, target, V4SImode)); + DONE; + } if (!TARGET_XOP) { rtx zero = force_reg (V2DImode, CONST0_RTX (V2DImode)); @@ -20337,9 +20517,7 @@ emit_insn (gen_lshrv2di3 (lshr_res, operands[1], operands[2])); rtx ashl_res = gen_reg_rtx (V2DImode); rtx amount; - if (CONST_INT_P (operands[2])) - amount = GEN_INT (64 - INTVAL (operands[2])); - else if (TARGET_64BIT) + if (TARGET_64BIT) { amount = gen_reg_rtx (DImode); emit_insn (gen_subdi3 (amount, force_reg (DImode, GEN_INT (64)), @@ -20355,8 +20533,7 @@ emit_insn (gen_vec_setv4si_0 (amount, CONST0_RTX (V4SImode), temp)); } - if (!CONST_INT_P (operands[2])) - amount = lowpart_subreg (DImode, amount, GET_MODE (amount)); + amount = lowpart_subreg (DImode, amount, GET_MODE (amount)); emit_insn (gen_ashlv2di3 (ashl_res, zero_or_all_ones, amount)); emit_insn (gen_iorv2di3 (operands[0], lshr_res, ashl_res)); DONE;
next prev parent reply other threads:[~2021-02-05 17:55 UTC|newest] Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-27 14:28 [Bug tree-optimization/98856] New: " marxin at gcc dot gnu.org 2021-01-27 14:29 ` [Bug tree-optimization/98856] " marxin at gcc dot gnu.org 2021-01-27 14:44 ` rguenth at gcc dot gnu.org 2021-01-28 7:47 ` rguenth at gcc dot gnu.org 2021-01-28 8:44 ` marxin at gcc dot gnu.org 2021-01-28 9:40 ` rguenth at gcc dot gnu.org 2021-01-28 11:03 ` rguenth at gcc dot gnu.org 2021-01-28 11:19 ` rguenth at gcc dot gnu.org 2021-01-28 11:57 ` rguenth at gcc dot gnu.org 2021-02-05 10:18 ` rguenth at gcc dot gnu.org 2021-02-05 11:52 ` jakub at gcc dot gnu.org 2021-02-05 12:52 ` rguenth at gcc dot gnu.org 2021-02-05 13:43 ` jakub at gcc dot gnu.org 2021-02-05 14:36 ` jakub at gcc dot gnu.org 2021-02-05 16:29 ` jakub at gcc dot gnu.org 2021-02-05 17:55 ` jakub at gcc dot gnu.org [this message] 2021-02-05 19:48 ` jakub at gcc dot gnu.org 2021-02-08 15:14 ` jakub at gcc dot gnu.org 2021-03-04 12:14 ` rguenth at gcc dot gnu.org 2021-03-04 15:36 ` rguenth at gcc dot gnu.org 2021-03-04 16:12 ` rguenth at gcc dot gnu.org 2021-03-04 17:56 ` ubizjak at gmail dot com 2021-03-04 18:12 ` ubizjak at gmail dot com 2021-03-05 7:44 ` rguenth at gcc dot gnu.org 2021-03-05 7:46 ` rguenth at gcc dot gnu.org 2021-03-05 8:29 ` ubizjak at gmail dot com 2021-03-05 10:04 ` rguenther at suse dot de 2021-03-05 10:43 ` rguenth at gcc dot gnu.org 2021-03-05 11:56 ` ubizjak at gmail dot com 2021-03-05 12:25 ` ubizjak at gmail dot com 2021-03-05 12:27 ` rguenth at gcc dot gnu.org 2021-03-05 12:49 ` jakub at gcc dot gnu.org 2021-03-05 12:52 ` ubizjak at gmail dot com 2021-03-05 12:55 ` rguenther at suse dot de 2021-03-05 13:06 ` rguenth at gcc dot gnu.org 2021-03-05 13:08 ` ubizjak at gmail dot com 2021-03-05 14:35 ` rguenth at gcc dot gnu.org 2021-03-08 10:41 ` rguenth at gcc dot gnu.org 2021-03-08 13:20 ` rguenth at gcc dot gnu.org 2021-03-08 15:46 ` amonakov at gcc dot gnu.org 2021-04-27 11:40 ` [Bug tree-optimization/98856] [11/12 " jakub at gcc dot gnu.org 2021-05-13 10:17 ` cvs-commit at gcc dot gnu.org 2021-07-28 7:05 ` rguenth at gcc dot gnu.org 2022-01-21 13:20 ` rguenth at gcc dot gnu.org 2022-04-21 7:48 ` rguenth at gcc dot gnu.org 2023-04-17 21:43 ` [Bug tree-optimization/98856] [11/12/13/14 " lukebenes at hotmail dot com 2023-04-18 9:07 ` rguenth at gcc dot gnu.org 2023-05-29 10:04 ` jakub at gcc dot gnu.org
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=bug-98856-4-ggxrQ6Kqzu@http.gcc.gnu.org/bugzilla/ \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).