From patchwork Wed Oct 10 14:28:00 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greta Yorsh X-Patchwork-Id: 190654 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) by ozlabs.org (Postfix) with SMTP id 4A62D2C0089 for ; Thu, 11 Oct 2012 01:28:24 +1100 (EST) Comment: DKIM? See http://www.dkim.org DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=gcc.gnu.org; s=default; x=1350484105; h=Comment: DomainKey-Signature:Received:Received:Received:Received:Received: From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type: Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:Sender:Delivered-To; bh=Rxnegcntuy8NGZCltpFS mXaF8JM=; b=rpdAeMyg+yHb6zw5syk/MuYHQAvUvRnm5E+PloNtzFRUKg+gnxHT ZVOuGzWqFCZAtYGPXdn3jRPCxmNXzdcs6FlGw2CFEqW2AEZvInYzl957eMKl0hw8 NqHhfyW1/UFUIIcYSypwFGNyJv0pNjBM4CS2hPVQa9aUQSpAC/W5pF4= Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=gcc.gnu.org; h=Received:Received:X-SWARE-Spam-Status:X-Spam-Check-By:Received:Received:Received:From:To:Cc:Subject:Date:Message-ID:MIME-Version:X-MC-Unique:Content-Type:Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive:List-Post:List-Help:Sender:Delivered-To; b=QcIaBxnQnSPG9ybCW7GPq19oo+bor/FUrHIGLT0rsH4Dg8DjyCeqgQOTBwPgmp CD621aS32DsQ18FxBTo7tZ7/2Nu1ikf9Led2GdnniQpYED33fwtEfZliwrU54InB azQ6Po0lk2PM6U/ZwdBgKnVGEtJe6pDxWAI5jR9cxx0BY=; Received: (qmail 1345 invoked by alias); 10 Oct 2012 14:28:19 -0000 Received: (qmail 1329 invoked by uid 22791); 10 Oct 2012 14:28:17 -0000 X-SWARE-Spam-Status: No, hits=-1.3 required=5.0 tests=AWL, BAYES_00, KHOP_RCVD_UNTRUST, KHOP_SPAMHAUS_DROP, MSGID_MULTIPLE_AT, RCVD_IN_DNSWL_LOW, TW_VF X-Spam-Check-By: sourceware.org Received: from service87.mimecast.com (HELO service87.mimecast.com) (91.220.42.44) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 10 Oct 2012 14:28:12 +0000 Received: from cam-owa1.Emea.Arm.com (fw-tnat.cambridge.arm.com [217.140.96.21]) by service87.mimecast.com; Wed, 10 Oct 2012 15:28:06 +0100 Received: from e103227vm ([10.1.255.212]) by cam-owa1.Emea.Arm.com with Microsoft SMTPSVC(6.0.3790.0); Wed, 10 Oct 2012 15:28:04 +0100 From: "Greta Yorsh" To: "GCC Patches" Cc: "Ramana Radhakrishnan" , "Richard Earnshaw" , , , "Greta Yorsh" , , , Subject: [PATCH, Testsuite] Add new effective target arm_prefer_ldrd_strd Date: Wed, 10 Oct 2012 15:28:00 +0100 Message-ID: <000401cda6f3$73946060$5abd2120$@yorsh@arm.com> MIME-Version: 1.0 X-MC-Unique: 112101015280614001 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org In the testsuite, distinguish between arm targets that prefer LDRD/STRD and arm targets that prefer LDM/STM. This patch adds a new effective target test and updates documentation accordingly. Ok for trunk? Thanks, Greta ChangeLog gcc/testsuite/ 2012-09-13 Greta Yorsh * gcc.target/arm/target-supports.exp (check_effective_target_arm_prefer_ldrd_strd): New procedure. gcc/ 2012-09-13 Greta Yorsh * doc/sourcebuild.texi: Document new effective target keyword arm_prefer_ldrd_strd. diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index 055567b..b80ee02 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -1552,6 +1552,11 @@ ARM target generates Thumb-2 code for @code{-mthumb}. @item arm_vfp_ok ARM target supports @code{-mfpu=vfp -mfloat-abi=softfp}. Some multilibs may be incompatible with these options. + +@item arm_prefer_ldrd_strd +ARM target prefers @code{LDRD} and @code{STRD} instructions over +@code{LDM} and @code{STM} instructions. + @end table @subsubsection MIPS-specific attributes diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index 8f793b7..4bf2424 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -2462,6 +2462,18 @@ proc check_effective_target_arm_iwmmxt_ok { } { } } +# Return true if LDRD/STRD instructions are prefered over LDM/STM instructions +# for an ARM target. +proc check_effective_target_arm_prefer_ldrd_strd { } { + if { ![check_effective_target_arm32] } { + return 0; + } + + return [check_no_messages_and_pattern arm_prefer_ldrd_strd "strd\tr" assembly { + void foo (int *p) { p[0] = 1; p[1] = 0;} + } "-O2 -mthumb" ] +} + # Return 1 if this is a PowerPC target with floating-point registers. proc check_effective_target_powerpc_fprs { } {