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[2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id j16-20020aa7ca50000000b0052587acad80si9215811edt.257.2023.09.06.05.51.46 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Sep 2023 05:51:46 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=PgIg7hZJ; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id D09543857353 for ; Wed, 6 Sep 2023 12:51:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D09543857353 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1694004690; bh=/Lux5VUgyN8AxHfQma3VRk39qWYXMXum6wVaVZUKVl4=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=PgIg7hZJ4QM1JNKP6xaaKoZCxSIYkNQoMeQnoG0pBwZpbrNuRG3CoE96uXum54ksk /EKJtj1WnPz32vaOvCR0AjUaxeALGHEM1I5MdqEP/l814rEMPqUADoENVhI1yVRsUN wEMP9bRozdo5Wh6SVrCNHbMMpunNv0vikkVRdBnk= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0a-00230701.pphosted.com (mx0a-00230701.pphosted.com [148.163.156.19]) by sourceware.org (Postfix) with ESMTPS id BBCA93858401 for ; Wed, 6 Sep 2023 12:50:44 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org BBCA93858401 Received: from pps.filterd (m0098571.ppops.net [127.0.0.1]) by mx0a-00230701.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 386A1wL1013351; Wed, 6 Sep 2023 05:50:43 -0700 Received: from smtprelay-out1.synopsys.com (smtprelay-out1.synopsys.com [149.117.73.133]) by mx0a-00230701.pphosted.com (PPS) with ESMTPS id 3sv42mrm7a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 06 Sep 2023 05:50:43 -0700 Received: from mailhost.synopsys.com (sv2-mailhost2.synopsys.com [10.205.2.134]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) client-signature RSA-PSS (2048 bits)) (Client CN "mailhost.synopsys.com", Issuer "SNPSica2" (verified OK)) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 16B67401B8; Wed, 6 Sep 2023 12:50:42 +0000 (UTC) Received: from atlantis.internal.synopsys.com (unknown [10.100.25.148]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client did not present a certificate) by mailhost.synopsys.com (Postfix) with ESMTPSA id ADFD3A007B; Wed, 6 Sep 2023 12:50:41 +0000 (UTC) X-SNPS-Relay: synopsys.com To: Claudiu Zissulescu , gcc-patches@gcc.gnu.org Cc: Shahab Vahedi , Claudiu Zissulescu Subject: [PATCH 2/2] ARC: Use intrinsics for __builtin_sub_overflow*() Date: Wed, 6 Sep 2023 14:50:26 +0200 Message-ID: <20230906125026.16091-2-shahab@synopsys.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230906125026.16091-1-shahab@synopsys.com> References: <20230906125026.16091-1-shahab@synopsys.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: 2MAacqTAbXjup7-y63Hprkw7Q9TKaIqN X-Proofpoint-GUID: 2MAacqTAbXjup7-y63Hprkw7Q9TKaIqN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-06_06,2023-09-05_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_active_cloned_notspam policy=outbound_active_cloned score=0 mlxlogscore=999 clxscore=1015 priorityscore=1501 spamscore=0 mlxscore=0 bulkscore=0 impostorscore=0 phishscore=0 suspectscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309060111 X-Spam-Status: No, score=-9.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, SPF_HELO_NONE, SPF_NONE, TXREP 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: , X-Patchwork-Original-From: Shahab Vahedi via Gcc-patches From: Shahab Vahedi Reply-To: Shahab Vahedi Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776292679204511397 X-GMAIL-MSGID: 1776292679204511397 This patch covers signed and unsigned subtractions. The generated code would be something along these lines: signed: sub.f r0, r1, r2 b.v @label unsigned: sub.f r0, r1, r2 b.c @label gcc/ChangeLog: * config/arc/arc.md (subsi3_v): New insn. (subvsi4): New expand. (subsi3_c): New insn. (usubvsi4): New expand. gcc/testsuite/ChangeLog: * gcc.target/arc/overflow-2.c: New. Signed-off-by: Shahab Vahedi --- gcc/config/arc/arc.md | 48 +++++++++++ gcc/testsuite/gcc.target/arc/overflow-2.c | 97 +++++++++++++++++++++++ 2 files changed, 145 insertions(+) create mode 100644 gcc/testsuite/gcc.target/arc/overflow-2.c diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md index 9d011f6b4a9..34e9e1a7f1d 100644 --- a/gcc/config/arc/arc.md +++ b/gcc/config/arc/arc.md @@ -2973,6 +2973,54 @@ archs4x, archs4xd" (set_attr "cpu_facility" "*,cd,*,*,*,*,*,*,*,*") ]) +(define_insn "subsi3_v" + [(set (match_operand:SI 0 "register_operand" "=r,r,r, r") + (minus:SI (match_operand:SI 1 "register_operand" "r,r,0, r") + (match_operand:SI 2 "nonmemory_operand" "r,L,I,C32"))) + (set (reg:CC_V CC_REG) + (compare:CC_V (sign_extend:DI (minus:SI (match_dup 1) + (match_dup 2))) + (minus:DI (sign_extend:DI (match_dup 1)) + (sign_extend:DI (match_dup 2)))))] + "" + "sub.f\\t%0,%1,%2" + [(set_attr "cond" "set") + (set_attr "type" "compare") + (set_attr "length" "4,4,4,8")]) + +(define_expand "subvsi4" + [(match_operand:SI 0 "register_operand") + (match_operand:SI 1 "register_operand") + (match_operand:SI 2 "nonmemory_operand") + (label_ref (match_operand 3 "" ""))] + "" + "emit_insn (gen_subsi3_v (operands[0], operands[1], operands[2])); + arc_gen_unlikely_cbranch (NE, CC_Vmode, operands[3]); + DONE;") + +(define_insn "subsi3_c" + [(set (match_operand:SI 0 "register_operand" "=r,r,r, r") + (minus:SI (match_operand:SI 1 "register_operand" "r,r,0, r") + (match_operand:SI 2 "nonmemory_operand" "r,L,I,C32"))) + (set (reg:CC_C CC_REG) + (compare:CC_C (match_dup 1) + (match_dup 2)))] + "" + "sub.f\\t%0,%1,%2" + [(set_attr "cond" "set") + (set_attr "type" "compare") + (set_attr "length" "4,4,4,8")]) + +(define_expand "usubvsi4" + [(match_operand:SI 0 "register_operand") + (match_operand:SI 1 "register_operand") + (match_operand:SI 2 "nonmemory_operand") + (label_ref (match_operand 3 "" ""))] + "" + "emit_insn (gen_subsi3_c (operands[0], operands[1], operands[2])); + arc_gen_unlikely_cbranch (LTU, CC_Cmode, operands[3]); + DONE;") + (define_expand "subdi3" [(set (match_operand:DI 0 "register_operand" "") (minus:DI (match_operand:DI 1 "register_operand" "") diff --git a/gcc/testsuite/gcc.target/arc/overflow-2.c b/gcc/testsuite/gcc.target/arc/overflow-2.c new file mode 100644 index 00000000000..b4de8c03b22 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/overflow-2.c @@ -0,0 +1,97 @@ +/* { dg-do compile } */ +/* { dg-options "-O1" } */ + +#include +#include + +/* + * sub.f r0,r0,r1 + * st_s r0,[r2] + * mov_s r0,1 + * j_s.d [blink] + * mov.nv r0,0 + */ +bool sub_overflow (int32_t a, int32_t b, int32_t *res) +{ + return __builtin_sub_overflow (a, b, res); +} + +/* + * sub.f r0,r0,-1234 + * st_s r0,[r1] + * mov_s r0,1 + * j_s.d [blink] + * mov.nv r0,0 + */ +bool subi_overflow (int32_t a, int32_t *res) +{ + return __builtin_sub_overflow (a, -1234, res); +} + +/* + * sub.f r3,r0,r1 + * st_s r3,[r2] + * j_s.d [blink] + * setlo r0,r0,r1 + */ +bool usub_overflow (uint32_t a, uint32_t b, uint32_t *res) +{ + return __builtin_sub_overflow (a, b, res); +} + +/* + * sub.f r2,r0,4321 + * seths r0,4320,r0 + * j_s.d [blink] + * st_s r2,[r1] + */ +bool usubi_overflow (uint32_t a, uint32_t *res) +{ + return __builtin_sub_overflow (a, 4321, res); +} + +/* + * sub.f r0,r0,r1 + * mov_s r0,1 + * j_s.d [blink] + * mov.nv r0,0 + */ +bool sub_overflow_p (int32_t a, int32_t b, int32_t res) +{ + return __builtin_sub_overflow_p (a, b, res); +} + +/* + * sub.f r0,r0,-1000 + * mov_s r0,1 + * j_s.d [blink] + * mov.nv r0,0 + */ +bool subi_overflow_p (int32_t a, int32_t res) +{ + return __builtin_sub_overflow_p (a, -1000, res); +} + +/* + * j_s.d [blink] + * setlo r0,r0,r1 + */ +bool usub_overflow_p (uint32_t a, uint32_t b, uint32_t res) +{ + return __builtin_sub_overflow_p (a, b, res); +} + +/* + * seths r0,1999,r0 + * j_s.d [blink] + */ +bool usubi_overflow_p (uint32_t a, uint32_t res) +{ + return __builtin_sub_overflow_p (a, 2000, res); +} + +/* { dg-final { scan-assembler-times "sub.f\\s\+" 6 } } */ +/* { dg-final { scan-assembler-times "mov\.nv\\s\+" 4 } } */ +/* { dg-final { scan-assembler-times "setlo\\s\+" 2 } } */ +/* { dg-final { scan-assembler-times "seths\\s\+" 2 } } */ +/* { dg-final { scan-assembler-not "cmp" } } */