From patchwork Mon Aug 22 23:13:09 2011
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Uros Bizjak <ubizjak@gmail.com>
X-Patchwork-Id: 111023
Return-Path: 
 <gcc-patches-return-300366-incoming=patchwork.ozlabs.org@gcc.gnu.org>
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 52A3CB6F8A
	for <incoming@patchwork.ozlabs.org>;
	Tue, 23 Aug 2011 09:13:27 +1000 (EST)
Received: (qmail 23677 invoked by alias); 22 Aug 2011 23:13:25 -0000
Received: (qmail 23629 invoked by uid 22791); 22 Aug 2011 23:13:24 -0000
X-SWARE-Spam-Status: No, hits=-2.3 required=5.0	tests=AWL, BAYES_00,
	DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM,
	RCVD_IN_DNSWL_LOW, TW_ZJ, T_TO_NO_BRKTS_FREEMAIL
X-Spam-Check-By: sourceware.org
Received: from mail-gx0-f175.google.com (HELO mail-gx0-f175.google.com)
	(209.85.161.175) by sourceware.org (qpsmtpd/0.43rc1) with
	ESMTP; Mon, 22 Aug 2011 23:13:11 +0000
Received: by gxk3 with SMTP id 3so926976gxk.20 for <gcc-patches@gcc.gnu.org>;
	Mon, 22 Aug 2011 16:13:10 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.143.93.4 with SMTP id v4mr1640698wfl.389.1314054789933;
	Mon, 22 Aug 2011 16:13:09 -0700 (PDT)
Received: by 10.143.13.8 with HTTP; Mon, 22 Aug 2011 16:13:09 -0700 (PDT)
Date: Tue, 23 Aug 2011 01:13:09 +0200
Message-ID: 
 <CAFULd4awQyCMDOGSyQL0rtqx9uqPhd2MUCOT+ECi9AjoKbAqiw@mail.gmail.com>
Subject: [PATCH,
	i386]: Use AVX FP instructions in libgcc soft-fp exception handler
From: Uros Bizjak <ubizjak@gmail.com>
To: gcc-patches@gcc.gnu.org
Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-patches.gcc.gnu.org>
List-Unsubscribe: 
 <mailto:gcc-patches-unsubscribe-incoming=patchwork.ozlabs.org@gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-patches/>
List-Post: <mailto:gcc-patches@gcc.gnu.org>
List-Help: <mailto:gcc-patches-help@gcc.gnu.org>
Sender: gcc-patches-owner@gcc.gnu.org
Delivered-To: mailing list gcc-patches@gcc.gnu.org

Hello!

2011-08-23  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/64/sfp-machine.h (ASM_INVALID): New define.
	(ASM_DIVZERO): Ditto.
	(FP_HANLDE_EXCEPTIONS): Use ASM_INVALID and ASM_DIVZERO.

Tested on x86_64-pc-linux-gnu {,-m32}. Committed to mainline SVN, will
be backported to release branches.

Uros.

Index: config/i386/64/sfp-machine.h
===================================================================
--- config/i386/64/sfp-machine.h	(revision 177972)
+++ config/i386/64/sfp-machine.h	(working copy)
@@ -73,17 +73,25 @@
   unsigned short int __unused5;
 };
 
+#ifdef __AVX__
+ #define ASM_INVALID "vdivss %0, %0, %0"
+ #define ASM_DIVZERO "vdivss %1, %0, %0"
+#else
+ #define ASM_INVALID "divss %0, %0"
+ #define ASM_DIVZERO "divss %1, %0"
+#endif
+
 #define FP_HANDLE_EXCEPTIONS						\
   do {									\
     if (_fex & FP_EX_INVALID)						\
       {									\
 	float f = 0.0;							\
-	__asm__ __volatile__ ("divss %0, %0 " : : "x" (f));		\
+	__asm__ __volatile__ (ASM_INVALID : : "x" (f));			\
       }									\
     if (_fex & FP_EX_DIVZERO)						\
       {									\
 	float f = 1.0, g = 0.0;						\
-	__asm__ __volatile__ ("divss %1, %0" : : "x" (f), "x" (g));	\
+	__asm__ __volatile__ (ASM_DIVZERO : : "x" (f), "x" (g));	\
       }									\
     if (_fex & FP_EX_OVERFLOW)						\
       {									\