From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by sourceware.org (Postfix) with ESMTPS id D2EDA3948A8F for ; Sat, 21 Mar 2020 02:42:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org D2EDA3948A8F Received: by mail-pg1-x533.google.com with SMTP id a32so4015352pga.4 for ; Fri, 20 Mar 2020 19:42:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OrDaYLhNUgbiWdeAr1FdN2pIGdu1IlDJEX6KYM6FHD8=; b=aUa8OtuAcVqW1vkrngixzbFal/Jr2Y7h0Cy89AYr++JJKpdO00YRH0bWy90KJzGAH6 xtKFQ4uWwY+AghbMOaBJlNtV0mYkNtACbejbzH3bfyoEMvMgGze9OcIQ+fINJoYgy/dS ecjrx7O0LQr2fa497iIm+kGXtRpiYa95lHkbSqyq18Ct7FjIEqcU2zNqC7227GbIraAt t4Hpq3+fTm+J2OZ9sudDUbV7WsFfmgkX5KXNum4cQnEZjltyNtzf626dWoOxiUq5k7iQ OV7jDWddsOTelnkBJWaNXf1VEghK8I8cAn06k3WNzaZnBhslkz4M+9o0JighdifX9EFR 5UEw== X-Gm-Message-State: ANhLgQ2a89oiSwMP4FpnqHW9CO9aAfTLLdAZK4LYJ1m9nhxhP+jkWtPO bJR97mTzJVCnz++POLrSP2il+VNfOuU= X-Google-Smtp-Source: ADFU+vvPm3tKb8o/V8Dj4XTtx5qi8T9KUty4Agu0LG8j2jFJpSbqZB22RqsqzfZvlV+nbKuEAU9l/A== X-Received: by 2002:a63:112:: with SMTP id 18mr11350922pgb.116.1584758557504; Fri, 20 Mar 2020 19:42:37 -0700 (PDT) Received: from localhost.localdomain (97-126-123-70.tukw.qwest.net. [97.126.123.70]) by smtp.gmail.com with ESMTPSA id c83sm6772831pfb.44.2020.03.20.19.42.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Mar 2020 19:42:36 -0700 (PDT) From: Richard Henderson To: gcc-patches@gcc.gnu.org Cc: richard.earnshaw@arm.com, richard.sandiford@arm.com, marcus.shawcroft@arm.com, kyrylo.tkachov@arm.com, Wilco.Dijkstra@arm.com Subject: [PATCH v2 3/9] aarch64: Add cmp_*_carryinC patterns Date: Fri, 20 Mar 2020 19:42:25 -0700 Message-Id: <20200321024231.13778-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200321024231.13778-1-richard.henderson@linaro.org> References: <20200321024231.13778-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-27.1 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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: Sat, 21 Mar 2020 02:42:40 -0000 Duplicate all usub_*_carryinC, but use xzr for the output when we only require the flags output. The signed versions use sign_extend instead of zero_extend for combine's benefit. These will be used shortly for TImode comparisons. * config/aarch64/aarch64.md (cmp3_carryinC): New. (*cmp3_carryinC_z1): New. (*cmp3_carryinC_z2): New. (*cmp3_carryinC): New. --- gcc/config/aarch64/aarch64.md | 50 +++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md index a996a5f1c39..9b1c3f797f9 100644 --- a/gcc/config/aarch64/aarch64.md +++ b/gcc/config/aarch64/aarch64.md @@ -3440,6 +3440,18 @@ "" ) +(define_expand "cmp3_carryinC" + [(set (reg:CC CC_REGNUM) + (compare:CC + (ANY_EXTEND: + (match_operand:GPI 0 "register_operand")) + (plus: + (ANY_EXTEND: + (match_operand:GPI 1 "register_operand")) + (ltu: (reg:CC CC_REGNUM) (const_int 0)))))] + "" +) + (define_insn "*usub3_carryinC_z1" [(set (reg:CC CC_REGNUM) (compare:CC @@ -3457,6 +3469,19 @@ [(set_attr "type" "adc_reg")] ) +(define_insn "*cmp3_carryinC_z1" + [(set (reg:CC CC_REGNUM) + (compare:CC + (const_int 0) + (plus: + (ANY_EXTEND: + (match_operand:GPI 0 "register_operand" "r")) + (match_operand: 1 "aarch64_borrow_operation" ""))))] + "" + "sbcs\\tzr, zr, %0" + [(set_attr "type" "adc_reg")] +) + (define_insn "*usub3_carryinC_z2" [(set (reg:CC CC_REGNUM) (compare:CC @@ -3472,6 +3497,17 @@ [(set_attr "type" "adc_reg")] ) +(define_insn "*cmp3_carryinC_z2" + [(set (reg:CC CC_REGNUM) + (compare:CC + (ANY_EXTEND: + (match_operand:GPI 0 "register_operand" "r")) + (match_operand: 1 "aarch64_borrow_operation" "")))] + "" + "sbcs\\tzr, %0, zr" + [(set_attr "type" "adc_reg")] +) + (define_insn "*usub3_carryinC" [(set (reg:CC CC_REGNUM) (compare:CC @@ -3490,6 +3526,20 @@ [(set_attr "type" "adc_reg")] ) +(define_insn "*cmp3_carryinC" + [(set (reg:CC CC_REGNUM) + (compare:CC + (ANY_EXTEND: + (match_operand:GPI 0 "register_operand" "r")) + (plus: + (ANY_EXTEND: + (match_operand:GPI 1 "register_operand" "r")) + (match_operand: 2 "aarch64_borrow_operation" ""))))] + "" + "sbcs\\tzr, %0, %1" + [(set_attr "type" "adc_reg")] +) + (define_expand "sub3_carryinV" [(parallel [(set (reg:CC_V CC_REGNUM) -- 2.20.1