From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by sourceware.org (Postfix) with ESMTP id 683C03858D28 for ; Mon, 28 Aug 2023 03:48:10 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 683C03858D28 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 _____8Cx2er4GOxkVXAcAA--.52879S3; Mon, 28 Aug 2023 11:48:08 +0800 (CST) Received: from loongson-pc.loongson.cn (unknown [10.20.4.107]) by localhost.localdomain (Coremail) with SMTP id AQAAf8AxX8_0GOxk3V9lAA--.48535S2; Mon, 28 Aug 2023 11:48:07 +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 v2] LoongArch: Enable '-free' starting at -O2. Date: Mon, 28 Aug 2023 11:46:53 +0800 Message-Id: <20230828034652.22768-1-chenglulu@loongson.cn> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:AQAAf8AxX8_0GOxk3V9lAA--.48535S2 X-CM-SenderInfo: xfkh0wpoxo3qxorr0wxvrqhubq/ X-Coremail-Antispam: 1Uk129KBj93XoWxZF13Wr43AFWDWw4kAryfZrc_yoW5ArWfpa nrurnxtr48JrnFgr1DK34rXr1rXrs7Gw43uFsI9ry8A3W3Xry2q3Z5ta9F9F4UAa1UJryx ZrsYva4jva1j93cCm3ZEXasCq-sJn29KB7ZKAUJUUUUx529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUU9Yb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r106r15M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8Jr0_Cr1UM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07 AIYIkI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWU AVWUtwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7V AKI48JMxkF7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY 6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17 CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF 0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIx AIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnIWIev Ja73UjIFyTuYvjxU2txhDUUUU 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 List-Id: v1 -> v2: 1. Modify Changelog information format. gcc/ChangeLog: * common/config/loongarch/loongarch-common.cc: Enable '-free' on O2 and above. * doc/invoke.texi: Modify the description information of the '-free' compilation option and add the LoongArch description. gcc/testsuite/ChangeLog: * gcc.target/loongarch/sign-extend.c: New test. --- .../config/loongarch/loongarch-common.cc | 1 + gcc/doc/invoke.texi | 4 +-- .../gcc.target/loongarch/sign-extend.c | 25 +++++++++++++++++++ 3 files changed, 28 insertions(+), 2 deletions(-) create mode 100644 gcc/testsuite/gcc.target/loongarch/sign-extend.c diff --git a/gcc/common/config/loongarch/loongarch-common.cc b/gcc/common/config/loongarch/loongarch-common.cc index fce32fa3f8d..c5ed37d27a6 100644 --- a/gcc/common/config/loongarch/loongarch-common.cc +++ b/gcc/common/config/loongarch/loongarch-common.cc @@ -35,6 +35,7 @@ static const struct default_options loongarch_option_optimization_table[] = { { OPT_LEVELS_ALL, OPT_fasynchronous_unwind_tables, NULL, 1 }, { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 }, + { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 }, { OPT_LEVELS_NONE, 0, NULL, 0 } }; diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a32dabf0405..16aa92b5e86 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -12639,8 +12639,8 @@ Attempt to remove redundant extension instructions. This is especially helpful for the x86-64 architecture, which implicitly zero-extends in 64-bit registers after writing to their lower 32-bit half. -Enabled for Alpha, AArch64, PowerPC, RISC-V, SPARC, h83000 and x86 at levels -@option{-O2}, @option{-O3}, @option{-Os}. +Enabled for Alpha, AArch64, LoongArch, PowerPC, RISC-V, SPARC, h83000 and x86 at +levels @option{-O2}, @option{-O3}, @option{-Os}. @opindex fno-lifetime-dse @opindex flifetime-dse diff --git a/gcc/testsuite/gcc.target/loongarch/sign-extend.c b/gcc/testsuite/gcc.target/loongarch/sign-extend.c new file mode 100644 index 00000000000..3f339d06bbd --- /dev/null +++ b/gcc/testsuite/gcc.target/loongarch/sign-extend.c @@ -0,0 +1,25 @@ +/* { dg-do compile } */ +/* { dg-options "-mabi=lp64d -O2" } */ +/* { dg-final { scan-assembler-times "slli.w" 1 } } */ + +extern int PL_savestack_ix; +extern int PL_regsize; +extern int PL_savestack_max; +void Perl_savestack_grow_cnt (int need); +extern void Perl_croak (char *); + +int +S_regcppush(int parenfloor) +{ + int retval = PL_savestack_ix; + int paren_elems_to_push = (PL_regsize - parenfloor) * 4; + int p; + + if (paren_elems_to_push < 0) + Perl_croak ("panic: paren_elems_to_push < 0"); + + if (PL_savestack_ix + (paren_elems_to_push + 6) > PL_savestack_max) + Perl_savestack_grow_cnt (paren_elems_to_push + 6); + + return retval; +} -- 2.31.1