From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2140) id 37F8E3854814; Tue, 9 Mar 2021 21:25:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 37F8E3854814 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Alexandre Oliva To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/aoliva/heads/testme)] use -mno-strict-align for strlenopt-80.c on powerpc X-Act-Checkin: gcc X-Git-Author: Alexandre Oliva X-Git-Refname: refs/users/aoliva/heads/testme X-Git-Oldrev: edd5acc5a48fa5ee4a3ef5389b801ee123e4bc94 X-Git-Newrev: a99a74df64b1a140af331a6a64e86ba1629d57f9 Message-Id: <20210309212507.37F8E3854814@sourceware.org> Date: Tue, 9 Mar 2021 21:25:07 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Mar 2021 21:25:07 -0000 https://gcc.gnu.org/g:a99a74df64b1a140af331a6a64e86ba1629d57f9 commit a99a74df64b1a140af331a6a64e86ba1629d57f9 Author: Alexandre Oliva Date: Mon Mar 8 23:22:47 2021 -0300 use -mno-strict-align for strlenopt-80.c on powerpc ppc configurations that have -mstrict-align enabled by default fail gcc.dg/strlenopt-80.c, because some memcpy calls don't get turned into MEM_REFs, which defeats the tested-for strlen optimization. for gcc/testsuite/ChangeLog * gcc.dg/strlenopt-80.c: Add -mno-strict-align on ppc. Diff: --- gcc/testsuite/gcc.dg/strlenopt-80.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/gcc/testsuite/gcc.dg/strlenopt-80.c b/gcc/testsuite/gcc.dg/strlenopt-80.c index 9124fe4740a..104a5e509fd 100644 --- a/gcc/testsuite/gcc.dg/strlenopt-80.c +++ b/gcc/testsuite/gcc.dg/strlenopt-80.c @@ -5,7 +5,11 @@ such a store. { dg-do compile { target aarch64*-*-* i?86-*-* powerpc*-*-* x86_64-*-* } } - { dg-options "-O2 -Wall -fdump-tree-optimized" } */ + { dg-options "-O2 -Wall -fdump-tree-optimized" } + + On powerpc configurations that have -mno-strict-alignment by default, + the memcpy calls for ncpylog >= 3 are not turned into MEM_REFs. + { dg-additional-options "-mno-strict-align" { target powerpc*-*-* } } */ #define CHAR_BIT __CHAR_BIT__ #define SIZE_MAX __SIZE_MAX__