Remove hand-written labs/abs implementations. GCC is smart enough.

It turns out GCC generates code that's a couple of bytes big bigger, but
performs no branching whatsoever.

Submitted by:	Christoph Mallon

3 files changed, 1 insertions, 95 deletions

diff --git a/lib/libc/i386/stdlib/Makefile.inc b/lib/libc/i386/stdlib/Makefile.inc
index 0a6a6a8..e4197d8 100644
--- a/lib/libc/i386/stdlib/Makefile.inc
+++ b/lib/libc/i386/stdlib/Makefile.inc
@@ -1,4 +1,4 @@
 #	@(#)Makefile.inc	8.1 (Berkeley) 6/4/93
 # $FreeBSD$
 
-MDSRCS+=abs.S div.S labs.S ldiv.S
+MDSRCS+=div.S ldiv.S
diff --git a/lib/libc/i386/stdlib/abs.S b/lib/libc/i386/stdlib/abs.S
deleted file mode 100644
index 236a631..0000000
--- a/lib/libc/i386/stdlib/abs.S
+++ /dev/null
@@ -1,47 +0,0 @@
-/*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
- 	.text
-	.asciz "@(#)abs.s	5.2 (Berkeley) 12/17/90"
-#endif /* LIBC_SCCS and not lint */
-#include <machine/asm.h>
-__FBSDID("$FreeBSD$");
-
-
-ENTRY(abs)
-	movl	4(%esp),%eax
-	testl	%eax,%eax
-	jns	1f
-	negl	%eax
-1:	ret
-END(abs)
diff --git a/lib/libc/i386/stdlib/labs.S b/lib/libc/i386/stdlib/labs.S
deleted file mode 100644
index 5e00b7a..0000000
--- a/lib/libc/i386/stdlib/labs.S
+++ /dev/null
@@ -1,47 +0,0 @@
-/*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-	.text
-	.asciz "@(#)abs.s	5.2 (Berkeley) 12/17/90"
-#endif /* LIBC_SCCS and not lint */
-#include <machine/asm.h>
-__FBSDID("$FreeBSD$");
-
-
-ENTRY(labs)
-	movl	4(%esp),%eax
-	testl	%eax,%eax
-	jns	1f
-	negl	%eax
-1:	ret
-END(labs)