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-rw-r--r--REORG.TODO/sysdeps/sparc/sparc64/strlen.S85
1 files changed, 85 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/sparc/sparc64/strlen.S b/REORG.TODO/sysdeps/sparc/sparc64/strlen.S
new file mode 100644
index 0000000000..25a63df03a
--- /dev/null
+++ b/REORG.TODO/sysdeps/sparc/sparc64/strlen.S
@@ -0,0 +1,85 @@
+/* Determine the length of a string.  For SPARC v9.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jan Vondrak <jvon4518@ss1000.ms.mff.cuni.cz>,
+                  Jakub Jelinek <jj@ultra.linux.cz>, and
+                  David S. Miller <davem@davemloft.net>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+	.register	%g2, #scratch
+	.register	%g3, #scratch
+
+	.text
+	.align		32
+ENTRY(strlen)
+	mov	%o0, %o1
+	andn	%o0, 0x7, %o0
+
+	ldx	[%o0], %o5
+	and	%o1, 0x7, %g1
+	mov	-1, %g5
+
+	sethi	%hi(0x01010101), %o2
+	sll	%g1, 3, %g1
+
+	or	%o2, %lo(0x01010101), %o2
+	srlx	%g5, %g1, %o3
+
+	sllx	%o2, 32, %g1
+	sethi	%hi(0x0000ff00), %g5
+
+	orn	%o5, %o3, %o5
+	or	%o2, %g1, %o2
+
+	sllx	%o2, 7, %o3
+10:	add	%o0, 8, %o0
+
+	andn	%o3, %o5, %g1
+	sub	%o5, %o2, %g2
+
+	andcc	%g1, %g2, %g0
+	be,a,pt	%xcc, 10b
+	 ldx	[%o0], %o5
+	srlx	%o5, 32, %g1
+
+	andn	%o3, %g1, %o4
+	sub	%g1, %o2, %g2
+
+	add	%o0, 4, %g3
+	andcc	%o4, %g2, %g0
+	movne	%icc, %g1, %o5
+
+	move	%icc, %g3, %o0
+	or	%g5, %lo(0x0000ff00), %g5
+	mov	3 - 8, %g2
+
+	andcc	%o5, %g5, %g0
+	srlx	%o5, 16, %g1
+	move	%icc, 2 - 8, %g2
+
+	andcc	%g1, 0xff, %g0
+	srl	%o5, 24, %o5
+	move	%icc, 1 - 8, %g2
+
+	movrz	%o5, 0 - 8, %g2
+	sub	%o0, %o1, %o0
+
+	retl
+	 add	%o0, %g2, %o0
+END(strlen)
+libc_hidden_builtin_def (strlen)