S390: Unify 31/64bit memset.

The implementation of memset for s390-32 (31bit) and
s390-64 (64bit) is nearly the same.
This patch unifies it for maintability reasons.

__memset_z10 and __memset_z196 differs between 31 and 64bit:
-31bit needs .machinemode "zarch_nohighgprs" and llgfr   %r4,%r4
-lr vs lgr and some other instructions:
But lgr and co can be also used on 31bit as this ifunc variant
is only called if we are on a zarch machine.

__memset_default differs between 31 and 64bit:
-Some 31bit vs 64bit instructions (e.g. ltr vs ltgr.
Solved with 31/64 specific instruction macros).
-The address of mvc instruction is setup in different ways
(larl vs bras). Solved with #if defined __s390x__.

Otherwise 31/64bit implementation has the same structure of the code.

ChangeLog:

	* sysdeps/s390/s390-64/memset.S: Move to ...
	* sysdeps/s390/memset.S: ... here.
	Adjust to be usable for 31/64bit.
	* sysdeps/s390/s390-32/memset.S: Delete File.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memset.
	* sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines):
	Remove memset.
	* sysdeps/s390/s390-64/multiarch/Makefile: Likewise.
	* sysdeps/s390/s390-64/multiarch/memset-s390x.S: Move to ...
	* sysdeps/s390/multiarch/memset-s390x.S: ... here.
	Adjust to be usable for 31/64bit.
	* sysdeps/s390/s390-32/multiarch/memset-s390.S: Delete File.
	* sysdeps/s390/s390-64/multiarch/memset.c: Move to ...
	* sysdeps/s390/multiarch/memset.c: ... here.
	* sysdeps/s390/s390-32/multiarch/memset.c: Delete File.

1 files changed, 0 insertions, 65 deletions

diff --git a/sysdeps/s390/s390-32/memset.S b/sysdeps/s390/s390-32/memset.S
deleted file mode 100644
index 57f08e1cae..0000000000
--- a/sysdeps/s390/s390-32/memset.S
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Set a block of memory to some byte value.  For IBM S390
-   Copyright (C) 2012-2018 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 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"
-#include "asm-syntax.h"
-
-/* INPUT PARAMETERS
-     %r2 = address to memory area
-     %r3 = byte to fill memory with
-     %r4 = number of bytes to fill.  */
-
-       .text
-
-#ifdef USE_MULTIARCH
-ENTRY(__memset_default)
-#else
-ENTRY(memset)
-#endif
-	.machine "g5"
-	basr    %r5,0
-.L_G5_19:
-	ltr     %r4,%r4
-	je      .L_G5_4
-	stc     %r3,0(%r2)
-	chi     %r4,1
-	lr      %r1,%r2
-	je      .L_G5_4
-	ahi     %r4,-2
-	lr      %r3,%r4
-	srl     %r3,8
-	ltr     %r3,%r3
-	jne     .L_G5_14
-	ex      %r4,.L_G5_20-.L_G5_19(%r5)
-.L_G5_4:
-	br      %r14
-.L_G5_14:
-	mvc     1(256,%r1),0(%r1)
-	la      %r1,256(%r1)
-	brct    %r3,.L_G5_14
-	ex      %r4,.L_G5_20-.L_G5_19(%r5)
-	j       .L_G5_4
-.L_G5_20:
-	mvc     1(1,%r1),0(%r1)
-#ifdef USE_MULTIARCH
-END(__memset_default)
-#else
-END(memset)
-libc_hidden_builtin_def (memset)
-#endif