Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161284AbWBUCad (ORCPT ); Mon, 20 Feb 2006 21:30:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161285AbWBUCad (ORCPT ); Mon, 20 Feb 2006 21:30:33 -0500 Received: from mail.renesas.com ([202.234.163.13]:12698 "EHLO mail04.idc.renesas.com") by vger.kernel.org with ESMTP id S1161284AbWBUCac (ORCPT ); Mon, 20 Feb 2006 21:30:32 -0500 Date: Tue, 21 Feb 2006 11:30:28 +0900 (JST) Message-Id: <20060221.113028.796986944.takata.hirokazu@renesas.com> To: Andrew Morton Cc: linux-kernel@vger.kernel.org, takata@linux-m32r.org Subject: [PATCH 2.6.16-rc3] m32r: enable asm code optimization From: Hirokazu Takata X-Mailer: Mew version 3.3 on XEmacs 21.4.19 (Constant Variable) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1759 Lines: 48 Add -O2 option to AFLAGS to enable asm code optimization for m32r. On m32r gas, "-m32r2 -O" option enables assembler's parallel code generation optimization for M32R2 ISA as a default. So, "-no-parallel" option is required explicitly for a cpu core with single instuction issuing, for example, VDEC2. Signed-off-by: Hirokazu Takata --- arch/m32r/kernel/sys_m32r.c | 61 ++++++++++++++++++++++++-------------------- 1 file changed, 34 insertions(+), 27 deletions(-) arch/m32r/Makefile | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) Index: b/arch/m32r/Makefile =================================================================== --- b.orig/arch/m32r/Makefile 2005-11-03 17:16:58.483118728 +0900 +++ b/arch/m32r/Makefile 2005-11-03 18:17:20.683460576 +0900 @@ -12,14 +12,14 @@ CFLAGS_MODULE += -mmodel=large ifdef CONFIG_CHIP_VDEC2 cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst -aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst +aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -O2 -Wa,-bitinst -Wa,-no-parallel else cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2 -aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2 +aflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -m32r2 -O2 endif cflags-$(CONFIG_ISA_M32R) += -DNO_FPU -aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -Wa,-no-bitinst +aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -O2 -Wa,-no-bitinst CFLAGS += $(cflags-y) AFLAGS += $(aflags-y) -- Hirokazu Takata Linux/M32R Project: http://www.linux-m32r.org/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/