From patchwork Wed Sep 13 03:11:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lulu Cheng X-Patchwork-Id: 75791 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 6942C3857C40 for ; Wed, 13 Sep 2023 03:11:46 +0000 (GMT) X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by sourceware.org (Postfix) with ESMTP id 4B8EA3858D3C for ; Wed, 13 Sep 2023 03:11:28 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 4B8EA3858D3C Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.20.4.107]) by gateway (Coremail) with SMTP id _____8Cx7+tdKAFl_y0mAA--.7382S3; Wed, 13 Sep 2023 11:11:26 +0800 (CST) Received: from loongson-pc.loongson.cn (unknown [10.20.4.107]) by localhost.localdomain (Coremail) with SMTP id AQAAf8DxfS9bKAFlJQkCAA--.3535S2; Wed, 13 Sep 2023 11:11:24 +0800 (CST) From: Lulu Cheng To: gcc-patches@gcc.gnu.org Cc: xry111@xry111.site, i@xen0n.name, xuchenghua@loongson.cn, Lulu Cheng Subject: [PATCH] LoongArch: Change the value of branch_cost from 2 to 6. Date: Wed, 13 Sep 2023 11:11:16 +0800 Message-Id: <20230913031116.19464-1-chenglulu@loongson.cn> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8DxfS9bKAFlJQkCAA--.3535S2 X-CM-SenderInfo: xfkh0wpoxo3qxorr0wxvrqhubq/ X-Coremail-Antispam: 1Uk129KBj93XoW7tw4xGr15Cr4fZFyftryxZwc_yoW8AFy5p3 9rAwnxtr48JFZ7Kr1DXa43Xws8XrnrKFy7uasxAr1xCrsxX34jvF1kt39xXF15Ga1xtryS vrsY93Wav3WjqabCm3ZEXasCq-sJn29KB7ZKAUJUUUU5529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUkFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r106r15M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx 1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1Y6r17McIj6I8E87Iv 67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07j1YL9UUUUU= X-Spam-Status: No, score=-12.5 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, KAM_SHORT, SPF_HELO_NONE, SPF_PASS, 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: , Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" gcc/ChangeLog: * config/loongarch/loongarch-def.c: Modify the default value of branch_cost. gcc/testsuite/ChangeLog: * gcc.target/loongarch/cmov_ii.c: New test. --- gcc/config/loongarch/loongarch-def.c | 4 ++-- gcc/testsuite/gcc.target/loongarch/cmov_ii.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+), 2 deletions(-) create mode 100644 gcc/testsuite/gcc.target/loongarch/cmov_ii.c diff --git a/gcc/config/loongarch/loongarch-def.c b/gcc/config/loongarch/loongarch-def.c index e744ee01d6d..430ef8b2d95 100644 --- a/gcc/config/loongarch/loongarch-def.c +++ b/gcc/config/loongarch/loongarch-def.c @@ -85,7 +85,7 @@ loongarch_cpu_align[N_TUNE_TYPES] = { .int_mult_di = COSTS_N_INSNS (1), \ .int_div_si = COSTS_N_INSNS (4), \ .int_div_di = COSTS_N_INSNS (6), \ - .branch_cost = 2, \ + .branch_cost = 6, \ .memory_latency = 4 /* The following properties cannot be looked up directly using "cpucfg". @@ -118,7 +118,7 @@ loongarch_rtx_cost_optimize_size = { .int_mult_di = 4, .int_div_si = 4, .int_div_di = 4, - .branch_cost = 2, + .branch_cost = 6, .memory_latency = 4, }; diff --git a/gcc/testsuite/gcc.target/loongarch/cmov_ii.c b/gcc/testsuite/gcc.target/loongarch/cmov_ii.c new file mode 100644 index 00000000000..466a4c1c9af --- /dev/null +++ b/gcc/testsuite/gcc.target/loongarch/cmov_ii.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +/* { dg-final { scan-assembler "main:.*xor.*masknez.*maskeqz.*or.*" } } + */ +void printf (char *, ...); +extern void foo_ii (int *, int *, int *, int *); + +int +test (void) +{ + int a, b; + int c, d, out; + foo_ii (&a, &b, &c, &d); + out = a == b ? c : d; + printf ("%d\n", out); +}