From patchwork Wed Nov 15 09:46:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongyu Wang X-Patchwork-Id: 1864121 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=GUpcC6OR; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=server2.sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=patchwork.ozlabs.org) Received: from server2.sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SVdd43Dkyz1yRG for ; Wed, 15 Nov 2023 20:47:52 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 2D2CE385800E for ; Wed, 15 Nov 2023 09:47:47 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by sourceware.org (Postfix) with ESMTPS id 55A263858427 for ; Wed, 15 Nov 2023 09:47:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 55A263858427 Authentication-Results: sourceware.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=gmail.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 55A263858427 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=134.134.136.100 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1700041636; cv=none; b=ItbgnZQlTlU1q8z0KLJFu+gdOpORQmFRpxi272E5AB1F0rgLQ575gfQtnQ2IhinNrlO4Go+spNzHpaG0aIwyQWgyv/WRr7OW6i/cUKLAnRdt2wM8Z7ZuW0Jzs9HX6PD9M9Rhmu1I/X0LHuf0L9fK/vjWfxTZWuYHuqYjrvDvWXk= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1700041636; c=relaxed/simple; bh=z80N3i3EPdIdNxw+lI+HVcQgp9YKX7m9WhHjZJyfYeU=; h=DKIM-Signature:From:To:Subject:Date:Message-Id:MIME-Version; b=OqYzlPEjWG1UlEDlITQM239T7maq252nSWOb1EJuUVscv93R76NI1ukSxPwkMGRCP3aqnaKHBO5zlY4E/iOc8ckgzS4gQd4C2RRIK1rrWxY+VrKG8oXLolHL0n5MpwTIJo8vuY1JwkmTTkGdDDpvCGzcnMW9dB66aGTmoM2J4JA= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700041633; x=1731577633; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=z80N3i3EPdIdNxw+lI+HVcQgp9YKX7m9WhHjZJyfYeU=; b=GUpcC6ORKvQcc+GE1QETyKILk3J7Y22o22T5JomtD7CaqUIESaYUOUaZ OtPF5UGXsrMIvM7Fk0ObCoKrySZZ6mdCA7NvcLgXnCqLo5sTPTE/OeFoI QntZomhJb/dwlyP4+uBt7AmO+6Bv0+zj4quCn3HXE7kOzamk2hE20Qnv2 M7excp3z0IP+nn4OS4XoBR1C1HqCGHlR7bgynvZhUC8VqF/eQAm5uqWex cQb0XqozY+AKu/NQzMmJyvSmnxZuD1rKzIm+sRsd07BuLJ+6RgDYgzWms 6PwotBEQsTM47xNIqbew9jUbppr/A36sK+ZXX00FJTskxk0VM/eWP20c7 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="457342593" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="457342593" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Nov 2023 01:47:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="938431665" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="938431665" Received: from shvmail03.sh.intel.com ([10.239.245.20]) by orsmga005.jf.intel.com with ESMTP; 15 Nov 2023 01:47:09 -0800 Received: from shliclel4217.sh.intel.com (shliclel4217.sh.intel.com [10.239.240.127]) by shvmail03.sh.intel.com (Postfix) with ESMTP id B461A100567A; Wed, 15 Nov 2023 17:47:05 +0800 (CST) From: Hongyu Wang To: gcc-patches@gcc.gnu.org Cc: ubizjak@gmail.com, hongtao.liu@intel.com, Kong Lingling Subject: [PATCH 06/16] [APX NDD] Support APX NDD for sub insns Date: Wed, 15 Nov 2023 17:46:55 +0800 Message-Id: <20231115094705.3976553-7-hongyu.wang@intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20231115094705.3976553-1-hongyu.wang@intel.com> References: <20231115094705.3976553-1-hongyu.wang@intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-10.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM, GIT_PATCH_0, HEADER_FROM_DIFFERENT_DOMAINS, KAM_SHORT, SPF_HELO_NONE, SPF_SOFTFAIL, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org From: Kong Lingling gcc/ChangeLog: * config/i386/i386-expand.cc (ix86_fixup_binary_operands_no_copy): Add use_ndd parameter. (ix86_can_use_ndd_p): ADD MINUS. * config/i386/i386-protos.h (ix86_fixup_binary_operands_no_copy): Change define. * config/i386/i386.md (sub3): Add NDD constraints. (*sub_1): Likewise. (*subsi_1_zext): Likewise. (*sub_2): Likewise. (*subsi_2_zext): Likewise. (subv4): Likewise. (*subv4): Likewise. (subv4_1): Likewise. (usubv4): Likewise. (*sub_3): Likewise. (*subsi_3_zext): Likewise. gcc/testsuite/ChangeLog: * gcc.target/i386/apx-ndd.c: Add test for ndd sub. [APX NDD] Support APX NDD for more optimized sub insn gcc/ChangeLog: * config/i386/i386.md --- gcc/config/i386/i386-expand.cc | 6 +- gcc/config/i386/i386-protos.h | 2 +- gcc/config/i386/i386.md | 152 ++++++++++++++++-------- gcc/testsuite/gcc.target/i386/apx-ndd.c | 13 ++ 4 files changed, 118 insertions(+), 55 deletions(-) diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc index ea0e5881087..e5f75875e3b 100644 --- a/gcc/config/i386/i386-expand.cc +++ b/gcc/config/i386/i386-expand.cc @@ -1270,6 +1270,7 @@ bool ix86_can_use_ndd_p (enum rtx_code code) switch (code) { case PLUS: + case MINUS: return true; default: return false; @@ -1342,9 +1343,10 @@ ix86_fixup_binary_operands (enum rtx_code code, machine_mode mode, void ix86_fixup_binary_operands_no_copy (enum rtx_code code, - machine_mode mode, rtx operands[]) + machine_mode mode, rtx operands[], + bool use_ndd) { - rtx dst = ix86_fixup_binary_operands (code, mode, operands); + rtx dst = ix86_fixup_binary_operands (code, mode, operands, use_ndd); gcc_assert (dst == operands[0]); } diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h index 5d902e2925b..ad895fac72d 100644 --- a/gcc/config/i386/i386-protos.h +++ b/gcc/config/i386/i386-protos.h @@ -111,7 +111,7 @@ extern void ix86_expand_vector_move_misalign (machine_mode, rtx[]); extern rtx ix86_fixup_binary_operands (enum rtx_code, machine_mode, rtx[], bool = false); extern void ix86_fixup_binary_operands_no_copy (enum rtx_code, - machine_mode, rtx[]); + machine_mode, rtx[], bool = false); extern void ix86_expand_binary_operator (enum rtx_code, machine_mode, rtx[], bool = false); extern void ix86_expand_vector_logical_operator (enum rtx_code, diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index f23859d1172..1aa8469d666 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -7637,7 +7637,8 @@ (define_expand "sub3" (minus:SDWIM (match_operand:SDWIM 1 "nonimmediate_operand") (match_operand:SDWIM 2 "")))] "" - "ix86_expand_binary_operator (MINUS, mode, operands); DONE;") + "ix86_expand_binary_operator (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS)); DONE;") (define_insn_and_split "*sub3_doubleword" [(set (match_operand: 0 "nonimmediate_operand" "=ro,r") @@ -7663,7 +7664,10 @@ (define_insn_and_split "*sub3_doubleword" split_double_mode (mode, &operands[0], 3, &operands[0], &operands[3]); if (operands[2] == const0_rtx) { - ix86_expand_binary_operator (MINUS, mode, &operands[3]); + if (!rtx_equal_p (operands[0], operands[1])) + emit_move_insn (operands[0], operands[1]); + ix86_expand_binary_operator (MINUS, mode, &operands[3], + ix86_can_use_ndd_p (MINUS)); DONE; } }) @@ -7692,25 +7696,35 @@ (define_insn_and_split "*sub3_doubleword_zext" "split_double_mode (mode, &operands[0], 2, &operands[0], &operands[3]);") (define_insn "*sub_1" - [(set (match_operand:SWI 0 "nonimmediate_operand" "=m,") + [(set (match_operand:SWI 0 "nonimmediate_operand" "=m,i,r,r") (minus:SWI - (match_operand:SWI 1 "nonimmediate_operand" "0,0") - (match_operand:SWI 2 "" ","))) + (match_operand:SWI 1 "nonimmediate_operand" "0,0,rm,r") + (match_operand:SWI 2 "" ",,r,"))) (clobber (reg:CC FLAGS_REG))] - "ix86_binary_operator_ok (MINUS, mode, operands)" - "sub{}\t{%2, %0|%0, %2}" - [(set_attr "type" "alu") + "ix86_binary_operator_ok (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %1, %0|%0, %1, %2} + sub{}\t{%2, %1, %0|%0, %1, %2}" + [(set_attr "isa" "*,*,apx_ndd,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "")]) (define_insn "*subsi_1_zext" - [(set (match_operand:DI 0 "register_operand" "=r") + [(set (match_operand:DI 0 "register_operand" "=r,r") (zero_extend:DI - (minus:SI (match_operand:SI 1 "register_operand" "0") - (match_operand:SI 2 "x86_64_general_operand" "rBMe")))) + (minus:SI (match_operand:SI 1 "register_operand" "0,r") + (match_operand:SI 2 "x86_64_general_operand" "rBMe,rBMe")))) (clobber (reg:CC FLAGS_REG))] - "TARGET_64BIT && ix86_binary_operator_ok (MINUS, SImode, operands)" - "sub{l}\t{%2, %k0|%k0, %2}" - [(set_attr "type" "alu") + "TARGET_64BIT && ix86_binary_operator_ok (MINUS, SImode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{l}\t{%2, %k0|%k0, %2} + sub{l}\t{%2, %1, %k0|%k0, %1, %2}" + [(set_attr "isa" "*,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "SI")]) ;; Alternative 1 is needed to work around LRA limitation, see PR82524. @@ -7738,31 +7752,41 @@ (define_insn "*sub_2" [(set (reg FLAGS_REG) (compare (minus:SWI - (match_operand:SWI 1 "nonimmediate_operand" "0,0") - (match_operand:SWI 2 "" ",")) + (match_operand:SWI 1 "nonimmediate_operand" "0,0,rm,r") + (match_operand:SWI 2 "" ",,r,")) (const_int 0))) - (set (match_operand:SWI 0 "nonimmediate_operand" "=m,") + (set (match_operand:SWI 0 "nonimmediate_operand" "=m,,r,r") (minus:SWI (match_dup 1) (match_dup 2)))] "ix86_match_ccmode (insn, CCGOCmode) - && ix86_binary_operator_ok (MINUS, mode, operands)" - "sub{}\t{%2, %0|%0, %2}" - [(set_attr "type" "alu") + && ix86_binary_operator_ok (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %1, %0|%0, %1, %2} + sub{}\t{%2, %1, %0|%0, %1, %2}" + [(set_attr "isa" "*,*,apx_ndd,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "")]) (define_insn "*subsi_2_zext" [(set (reg FLAGS_REG) (compare - (minus:SI (match_operand:SI 1 "register_operand" "0") - (match_operand:SI 2 "x86_64_general_operand" "rBMe")) + (minus:SI (match_operand:SI 1 "register_operand" "0,r") + (match_operand:SI 2 "x86_64_general_operand" "rBMe,rBMe")) (const_int 0))) - (set (match_operand:DI 0 "register_operand" "=r") + (set (match_operand:DI 0 "register_operand" "=r,r") (zero_extend:DI (minus:SI (match_dup 1) (match_dup 2))))] "TARGET_64BIT && ix86_match_ccmode (insn, CCGOCmode) - && ix86_binary_operator_ok (MINUS, SImode, operands)" - "sub{l}\t{%2, %k0|%k0, %2}" - [(set_attr "type" "alu") + && ix86_binary_operator_ok (MINUS, SImode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{l}\t{%2, %k0|%k0, %2} + sub{l}\t{%2, %1, %k0|%k0, %1, %2}" + [(set_attr "isa" "*,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "SI")]) (define_insn "*subqi_ext_0" @@ -7841,7 +7865,8 @@ (define_expand "subv4" (pc)))] "" { - ix86_fixup_binary_operands_no_copy (MINUS, mode, operands); + ix86_fixup_binary_operands_no_copy (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS)); if (CONST_SCALAR_INT_P (operands[2])) operands[4] = operands[2]; else @@ -7852,35 +7877,45 @@ (define_insn "*subv4" [(set (reg:CCO FLAGS_REG) (eq:CCO (minus: (sign_extend: - (match_operand:SWI 1 "nonimmediate_operand" "0,0")) + (match_operand:SWI 1 "nonimmediate_operand" "0,0,rm,r")) (sign_extend: - (match_operand:SWI 2 "" "We,m"))) + (match_operand:SWI 2 "" "We,m,rWe,m"))) (sign_extend: (minus:SWI (match_dup 1) (match_dup 2))))) - (set (match_operand:SWI 0 "nonimmediate_operand" "=m,") + (set (match_operand:SWI 0 "nonimmediate_operand" "=m,,r,r") (minus:SWI (match_dup 1) (match_dup 2)))] - "ix86_binary_operator_ok (MINUS, mode, operands)" - "sub{}\t{%2, %0|%0, %2}" - [(set_attr "type" "alu") + "ix86_binary_operator_ok (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %1, %0|%0, %1, %2} + sub{}\t{%2, %1, %0|%0, %1, %2}" + [(set_attr "isa" "*,*,apx_ndd,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "")]) (define_insn "subv4_1" [(set (reg:CCO FLAGS_REG) (eq:CCO (minus: (sign_extend: - (match_operand:SWI 1 "nonimmediate_operand" "0")) + (match_operand:SWI 1 "nonimmediate_operand" "0,rm")) (match_operand: 3 "const_int_operand")) (sign_extend: (minus:SWI (match_dup 1) - (match_operand:SWI 2 "x86_64_immediate_operand" ""))))) - (set (match_operand:SWI 0 "nonimmediate_operand" "=m") + (match_operand:SWI 2 "x86_64_immediate_operand" ","))))) + (set (match_operand:SWI 0 "nonimmediate_operand" "=m,r") (minus:SWI (match_dup 1) (match_dup 2)))] - "ix86_binary_operator_ok (MINUS, mode, operands) + "ix86_binary_operator_ok (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS)) && CONST_INT_P (operands[2]) && INTVAL (operands[2]) == INTVAL (operands[3])" - "sub{}\t{%2, %0|%0, %2}" - [(set_attr "type" "alu") + "@ + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %1, %0|%0, %1, %2}" + [(set_attr "isa" "*,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "") (set (attr "length_immediate") (cond [(match_test "IN_RANGE (INTVAL (operands[2]), -128, 127)") @@ -7976,6 +8011,8 @@ (define_insn_and_split "*subv4_doubleword_1" split_double_mode (mode, &operands[0], 3, &operands[0], &operands[3]); if (operands[2] == const0_rtx) { + if (!rtx_equal_p (operands[0], operands[1])) + emit_move_insn (operands[0], operands[1]); emit_insn (gen_subv4_1 (operands[3], operands[4], operands[5], operands[5])); DONE; @@ -8057,18 +8094,25 @@ (define_expand "usubv4" (label_ref (match_operand 3)) (pc)))] "" - "ix86_fixup_binary_operands_no_copy (MINUS, mode, operands);") + "ix86_fixup_binary_operands_no_copy (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS));") (define_insn "*sub_3" [(set (reg FLAGS_REG) - (compare (match_operand:SWI 1 "nonimmediate_operand" "0,0") - (match_operand:SWI 2 "" ","))) - (set (match_operand:SWI 0 "nonimmediate_operand" "=m,") + (compare (match_operand:SWI 1 "nonimmediate_operand" "0,0,rm,r") + (match_operand:SWI 2 "" ",,r,"))) + (set (match_operand:SWI 0 "nonimmediate_operand" "=m,i,r,r") (minus:SWI (match_dup 1) (match_dup 2)))] "ix86_match_ccmode (insn, CCmode) - && ix86_binary_operator_ok (MINUS, mode, operands)" - "sub{}\t{%2, %0|%0, %2}" - [(set_attr "type" "alu") + && ix86_binary_operator_ok (MINUS, mode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %0|%0, %2} + sub{}\t{%2, %1, %0|%0, %1, %2} + sub{}\t{%2, %1, %0|%0, %1, %2}" + [(set_attr "isa" "*,*,apx_ndd,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "")]) (define_peephole2 @@ -8156,16 +8200,20 @@ (define_insn_and_split "*dec_cmov" (define_insn "*subsi_3_zext" [(set (reg FLAGS_REG) - (compare (match_operand:SI 1 "register_operand" "0") - (match_operand:SI 2 "x86_64_general_operand" "rBMe"))) - (set (match_operand:DI 0 "register_operand" "=r") + (compare (match_operand:SI 1 "register_operand" "0,r") + (match_operand:SI 2 "x86_64_general_operand" "rBMe,rBMe"))) + (set (match_operand:DI 0 "register_operand" "=r,r") (zero_extend:DI (minus:SI (match_dup 1) (match_dup 2))))] "TARGET_64BIT && ix86_match_ccmode (insn, CCmode) - && ix86_binary_operator_ok (MINUS, SImode, operands)" - "sub{l}\t{%2, %1|%1, %2}" - [(set_attr "type" "alu") + && ix86_binary_operator_ok (MINUS, SImode, operands, + ix86_can_use_ndd_p (MINUS))" + "@ + sub{l}\t{%2, %1|%1, %2} + sub{l}\t{%2, %1, %0|%0, %1, %2}" + [(set_attr "isa" "*,apx_ndd") + (set_attr "type" "alu") (set_attr "mode" "SI")]) ;; Add with carry and subtract with borrow diff --git a/gcc/testsuite/gcc.target/i386/apx-ndd.c b/gcc/testsuite/gcc.target/i386/apx-ndd.c index 6c136174d24..9d444e0d830 100644 --- a/gcc/testsuite/gcc.target/i386/apx-ndd.c +++ b/gcc/testsuite/gcc.target/i386/apx-ndd.c @@ -42,3 +42,16 @@ FOO (long, add, +) FOO1 (long, add, +) FOO2 (long, add, +) +FOO (char, sub, -) +FOO1 (char, sub, -) +FOO (short, sub, -) +FOO1 (short, sub, -) +FOO (int, sub, -) +FOO1 (int, sub, -) +FOO (long, sub, -) +FOO1 (long, sub, -) +/* { dg-final { scan-assembler-times "add(?:l|w|q)\[^\n\r]*1, \\(%rdi\\), %(?:|r|e)ax" 4 } } */ +/* { dg-final { scan-assembler-times "lea(?:l|q)\[^\n\r]\\(%r(?:d|s)i,%r(?:d|s)i\\), %(?:|r|e)ax" 4 } } */ +/* { dg-final { scan-assembler-times "add(?:l|w|q)\[^\n\r]%(?:|r|e)si, \\(%rdi\\), %(?:|r|e)ax" 4 } } */ +/* { dg-final { scan-assembler-times "sub(?:l|w|q)\[^\n\r]*1, \\(%rdi\\), %(?:|r|e)ax" 4 } } */ +/* { dg-final { scan-assembler-times "sub(?:l|w|q)\[^\n\r]%(?:|r|e)si, %(?:|r|e)di, %(?:|r|e)ax" 4 } } */