1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/powerpc/strlen.S b/sysdeps/powerpc/strlen.S
new file mode 100644
index 0000000000..95eaf94de1
--- /dev/null
+++ b/sysdeps/powerpc/strlen.S
@@ -0,0 +1,52 @@
+/* Optimized strlen implementation for PowerPC.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+	.section	".text"
+	.align 2
+	.globl strlen
+	.type	 strlen,@function
+strlen:
+	rlwinm 7,3,0,0,29
+	lis 8,0x7f7f
+	lwz 11,0(7)
+	ori 8,8,32639
+	rlwinm 4,3,3,27,28
+	li 9,-1
+	or 10,11,8
+	and 0,11,8
+	srw 9,9,4
+	add 0,0,8
+	nor 0,10,0
+	and. 11,0,9
+	bc 4,2,.L2
+.L3:
+	lwzu 11,4(7)
+	or 10,11,8
+	and 0,11,8
+	add 0,0,8
+	nor. 11,10,0
+	bc 12,2,.L3
+.L2:
+	subf 0,3,7
+	cntlzw 3,11
+	srwi 3,3,3
+	add 3,0,3
+	blr
+.Lfe1:
+	.size	 strlen,.Lfe1-strlen