From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from server.nextmovesoftware.com (server.nextmovesoftware.com [162.254.253.69]) by sourceware.org (Postfix) with ESMTPS id 5F0CA3858408 for ; Thu, 6 Jan 2022 16:42:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 5F0CA3858408 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=nextmovesoftware.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=nextmovesoftware.com DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nextmovesoftware.com; s=default; h=Content-Type:MIME-Version:Message-ID: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=RLJUVM6PgKj/BqqgaOgaPQK6SYNh28aNPBYivhP/mbQ=; b=jb/dnEcCQiWRABRBG7bkoi4ymN DhntMZTkui3UBmUtaKbIiZLy32OYLdH59K/zGjnTeC+gX5EFEgLq0zJGQzcN+WeHaGUpLZ9QXGnYs k8frSugx4fD0KEMCPvVG8xPG4dRBAq0S6YHFkaCMATPT5+LbT4tcU3iVREdsaHKgcAjeMQBDAKpbz zAudxJAmycjoTapmaKJCel6Ac3SMErurTNHxR2J8KMUGdMNlLr6m+r2klBFZW/So53kqy2lmVUt64 CKkKSOlSx189khy+9ExW9m8QWiPdKTKnasGb3VnjtxhBtG/7XNmlhNk+YVhb51KA3t3+8kLmyIgEB OQhT+Npg==; Received: from [185.62.158.67] (port=53582 helo=Dell) by server.nextmovesoftware.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1n5Vq8-0005bI-La; Thu, 06 Jan 2022 11:42:12 -0500 From: "Roger Sayle" To: "'GCC Patches'" Subject: [PATCH] nvptx: Add support for PTX's cnot instruction. Date: Thu, 6 Jan 2022 16:42:11 -0000 Message-ID: <000a01d8031c$5adc1510$10943f30$@nextmovesoftware.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_000B_01D8031C.5ADC1510" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AdgDG/LMC1lUrU6TQC2EFVBh6+YxtA== Content-Language: en-gb X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server.nextmovesoftware.com X-AntiAbuse: Original Domain - gcc.gnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - nextmovesoftware.com X-Get-Message-Sender-Via: server.nextmovesoftware.com: authenticated_id: roger@nextmovesoftware.com X-Authenticated-Sender: server.nextmovesoftware.com: roger@nextmovesoftware.com X-Source: X-Source-Args: X-Source-Dir: X-Spam-Status: No, score=-12.3 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_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Jan 2022 16:42:14 -0000 This is a multipart message in MIME format. ------=_NextPart_000_000B_01D8031C.5ADC1510 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Happy New Year for 2022. This is a simple patch, now that the nvptx backend has transitioned to STORE_FLAG_VALUE=1, that adds support for NVidia's cnot instruction, that implements C/C++ style logical negation. Previously, the simple function: int foo(int x) { return !x; } on nvptx-none with -O2 would generate: mov.u32 %r24, %ar0; setp.eq.u32 %r28, %r24, 0; selp.u32 %value, 1, 0, %r28; with this patch, GCC now generates: mov.u32 %r24, %ar0; cnot.b32 %value, %r24; This patch has been tested on nvptx-none hosted on x86_64-pc-linux-gnu (including newlib) with a make and make -k check with no new failures. Ok for mainline? 2022-01-06 Roger Sayle gcc/ChangeLog * config/nvptx/nvptx.md (*cnot2): New define_insn. gcc/testsuite/ChangeLog * gcc.target/nvptx/cnot-1.c: New test case. Thanks in advance, Roger -- ------=_NextPart_000_000B_01D8031C.5ADC1510 Content-Type: text/plain; name="patchn.txt" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="patchn.txt" diff --git a/gcc/config/nvptx/nvptx.md b/gcc/config/nvptx/nvptx.md=0A= index a4c14a3..ce74672 100644=0A= --- a/gcc/config/nvptx/nvptx.md=0A= +++ b/gcc/config/nvptx/nvptx.md=0A= @@ -592,6 +592,13 @@=0A= ""=0A= "%.\\tnot.b%T0\\t%0, %1;")=0A= =0A= +(define_insn "*cnot2"=0A= + [(set (match_operand:HSDIM 0 "nvptx_register_operand" "=3DR")=0A= + (eq:HSDIM (match_operand:HSDIM 1 "nvptx_register_operand" "R")=0A= + (const_int 0)))]=0A= + ""=0A= + "%.\\tcnot.b%T0\\t%0, %1;")=0A= +=0A= (define_insn "bitrev2"=0A= [(set (match_operand:SDIM 0 "nvptx_register_operand" "=3DR")=0A= (unspec:SDIM [(match_operand:SDIM 1 "nvptx_register_operand" "R")]=0A= diff --git a/gcc/testsuite/gcc.target/nvptx/cnot-1.c = b/gcc/testsuite/gcc.target/nvptx/cnot-1.c=0A= new file mode 100644=0A= index 0000000..d0bdccd=0A= --- /dev/null=0A= +++ b/gcc/testsuite/gcc.target/nvptx/cnot-1.c=0A= @@ -0,0 +1,94 @@=0A= +/* { dg-do compile } */=0A= +/* { dg-options "-O2" } */=0A= +=0A= +int test1(int x)=0A= +{=0A= + return !x;=0A= +}=0A= +=0A= +int test2(int x)=0A= +{=0A= + return x ? 0 : 1;=0A= +}=0A= +=0A= +int test3(int x)=0A= +{=0A= + return (x =3D=3D 0) ? 1 : 0;=0A= +}=0A= +=0A= +unsigned int test4(unsigned int x)=0A= +{=0A= + return !x;=0A= +}=0A= +=0A= +unsigned int test5(unsigned int x)=0A= +{=0A= + return x ? 0 : 1;=0A= +}=0A= +=0A= +unsigned int test6(unsigned int x)=0A= +{=0A= + return (x =3D=3D 0) ? 1 : 0;=0A= +}=0A= +=0A= +short test7(short x)=0A= +{=0A= + return !x;=0A= +}=0A= +=0A= +short test8(short x)=0A= +{=0A= + return x ? 0 : 1;=0A= +}=0A= +=0A= +short test9(short x)=0A= +{=0A= + return (x =3D=3D 0) ? 1 : 0;=0A= +}=0A= +=0A= +unsigned short test10(unsigned short x)=0A= +{=0A= + return !x;=0A= +}=0A= +=0A= +unsigned short test11(unsigned short x)=0A= +{=0A= + return x ? 0 : 1;=0A= +}=0A= +=0A= +unsigned short test12(unsigned short x)=0A= +{=0A= + return (x =3D=3D 0) ? 1 : 0;=0A= +}=0A= +=0A= +long test13(long x)=0A= +{=0A= + return !x;=0A= +}=0A= +=0A= +long test14(long x)=0A= +{=0A= + return x ? 0 : 1;=0A= +}=0A= +=0A= +long test15(long x)=0A= +{=0A= + return (x =3D=3D 0) ? 1: 0;=0A= +}=0A= +=0A= +unsigned long test16(unsigned long x)=0A= +{=0A= + return !x;=0A= +}=0A= +=0A= +unsigned long test17(unsigned long x)=0A= +{=0A= + return x ? 0 : 1;=0A= +}=0A= +=0A= +unsigned long test18(unsigned long x)=0A= +{=0A= + return (x =3D=3D 0) ? 1 : 0;=0A= +}=0A= +=0A= +/* { dg-final { scan-assembler-times "cnot.b" 18 } } */=0A= ------=_NextPart_000_000B_01D8031C.5ADC1510--