From b1bac3734581ab6788bbfe125c62914f8d6d5e01 Mon Sep 17 00:00:00 2001 From: "Steven J. Hill" Date: Mon, 25 Mar 2013 13:41:47 -0500 Subject: MIPS: microMIPS: Optimise 'strlen' core library function. Optimise 'strlen' to use microMIPS instructions and/or optimisations for binary size reduction. When the microMIPS ISA is not being used, the library function compiles to the original binary code. Signed-off-by: Steven J. Hill --- arch/mips/lib/strlen_user.S | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch/mips/lib') diff --git a/arch/mips/lib/strlen_user.S b/arch/mips/lib/strlen_user.S index fdbb970f670..e362dcdc69d 100644 --- a/arch/mips/lib/strlen_user.S +++ b/arch/mips/lib/strlen_user.S @@ -3,8 +3,9 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (c) 1996, 1998, 1999, 2004 by Ralf Baechle - * Copyright (c) 1999 Silicon Graphics, Inc. + * Copyright (C) 1996, 1998, 1999, 2004 by Ralf Baechle + * Copyright (C) 1999 Silicon Graphics, Inc. + * Copyright (C) 2011 MIPS Technologies, Inc. */ #include #include @@ -28,9 +29,9 @@ LEAF(__strlen_user_asm) FEXPORT(__strlen_user_nocheck_asm) move v0, a0 -1: EX(lb, t0, (v0), .Lfault) +1: EX(lbu, v1, (v0), .Lfault) PTR_ADDIU v0, 1 - bnez t0, 1b + bnez v1, 1b PTR_SUBU v0, a0 jr ra END(__strlen_user_asm) -- cgit v1.2.3