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authorUlrich Drepper <drepper@redhat.com>1999-07-06 16:26:03 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-06 16:26:03 +0000
commit2e65ca2b226a55e7d25ef687ce33185c0a71bd99 (patch)
tree0b76ef817b2b4977374fe025016e80fcd2e4f3ff /sysdeps/sparc/sparc64/rshift.S
parent4708015f24a69bd0a436483c4d1244d1fb1f2e87 (diff)
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Update.
1999-07-06 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/alpha/ioperm.c: Update for some more motherboards. Patch by Jay Estabrook. * sysdeps/unix/sysv/linux/configure.in: Don't test for libc4 in ldd for SPARC. * /sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed: New file. Patch by Cristian Gafton. 1999-07-02 Cristian Gafton <gafton@redhat.com> * sysdeps/unix/sysv/linux/bits/socket.h (__cmsg_nxthdr): "return 0" instead of "return NULL" to make C++ happy. 1999-07-04 Mark Kettenis <kettenis@gnu.org> * libio/iofdopen.c (_IO_new_fdopen): Set EINVAL if MODE is not allowed by the file access mode of the open file. 1999-07-06 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/setfpucw.c: Include math.h to get all needed macros defined. 1999-07-03 Jakub Jelinek <jj@ultra.linux.cz> * sysdeps/sparc/sparc64/submul_1.S: Fix carry handling. Optimize. * sysdeps/sparc/sparc64/lshift.S: Make a leaf subroutine. Optimize. * sysdeps/sparc/sparc64/rshift.S: Likewise. * sysdeps/sparc/sparc64/mul_1.S: Optimize. 1999-07-04 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * malloc/malloc.c (request2size): Check for overflow and return NULL whenever it is encountered. 1999-07-04 Zack Weinberg <zack@rabi.columbia.edu> * sysdeps/posix/tempname.c (__gen_tempname): Add ability to create directories. Replace OPENIT and LARGEFILE args with a single flags parameter. * sysdeps/generic/tempname.c: Likewise. * include/stdio.h: Adjust prototype of __gen_tempname to match. Define symbolic constants for second argument. * misc/mkdtemp.c: New file, provides new function mkdtemp(). * stdlib/stdlib.h: Prototype it. * misc/Versions: Export it. * misc/Makefile (routines): Add mktemp. * manual/filesys.texi: Document it. * misc/mktemp.c: Adjust call of __gen_tempname to match new convention. * misc/mkstemp.c: Likewise. * stdio-common/tempnam.c: Likewise. * stdio-common/tmpfile.c: Likewise. * stdio-common/tmpfile64.c: Likewise. * stdio-common/tmpnam.c: Likewise. * stdio-common/tmpnam_r.c: Likewise. 1999-07-05 Jakub Jelinek <jj@ultra.linux.cz> * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Support R_SPARC_OLO10 relocations. * elf/elf.h (R_SPARC_OLO10): Fix comment.
Diffstat (limited to 'sysdeps/sparc/sparc64/rshift.S')
-rw-r--r--sysdeps/sparc/sparc64/rshift.S121
1 files changed, 59 insertions, 62 deletions
diff --git a/sysdeps/sparc/sparc64/rshift.S b/sysdeps/sparc/sparc64/rshift.S
index 51eb4af3ab..f43d25efe8 100644
--- a/sysdeps/sparc/sparc64/rshift.S
+++ b/sysdeps/sparc/sparc64/rshift.S
@@ -1,6 +1,6 @@
/* SPARC v9 __mpn_rshift --
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1999 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
@@ -22,72 +22,69 @@
#include <sysdep.h>
/* INPUT PARAMETERS
- res_ptr %i0
- src_ptr %i1
- size %i2
- cnt %i3 */
+ res_ptr %o0
+ src_ptr %o1
+ size %o2
+ cnt %o3 */
ENTRY(__mpn_rshift)
- save %sp, -192, %sp
-
- ldx [%i1],%g2 ! load first limb
- sub %g0,%i3,%i5 ! negate shift count
- add %i2,-1,%i2
- and %i2,4-1,%l4 ! number of limbs in first loop
- sllx %g2,%i5,%g1 ! compute function result
- brz,pn %l4,.L0 ! if multiple of 4 limbs, skip first loop
- mov %g1,%l1
-
- sub %i2,%l4,%i2 ! adjust count for main loop
-
-.Loop0: ldx [%i1+8],%g3
- add %i0,8,%i0
- add %i1,8,%i1
- add %l4,-1,%l4
- srlx %g2,%i3,%i4
- sllx %g3,%i5,%g1
+ ldx [%o1],%g2 ! load first limb
+ sub %g0,%o3,%o5 ! negate shift count
+ add %o2,-1,%o2
+ andcc %o2,4-1,%g4 ! number of limbs in first loop
+ sllx %g2,%o5,%g1 ! compute function result
+ be,pn %xcc,.L0 ! if multiple of 4 limbs, skip first loop
+ mov %g1,%g5
+
+ sub %o2,%g4,%o2 ! adjust count for main loop
+
+.Loop0: ldx [%o1+8],%g3
+ add %o0,8,%o0
+ add %o1,8,%o1
+ srlx %g2,%o3,%o4
+ addcc %g4,-1,%g4
+ sllx %g3,%o5,%g1
mov %g3,%g2
- or %i4,%g1,%i4
- brnz,pt %l4,.Loop0
- stx %i4,[%i0-8]
+ or %o4,%g1,%o4
+ bne,pt %xcc,.Loop0
+ stx %o4,[%o0-8]
-.L0: brz,pn %i2,.Lend
+.L0: brz,pn %o2,.Lend
nop
-.Loop: ldx [%i1+8],%g3
- add %i0,32,%i0
- add %i2,-4,%i2
- srlx %g2,%i3,%i4
- sllx %g3,%i5,%g1
-
- ldx [%i1+16],%g2
- srlx %g3,%i3,%l4
- or %i4,%g1,%i4
- stx %i4,[%i0-32]
- sllx %g2,%i5,%g1
-
- ldx [%i1+24],%g3
- srlx %g2,%i3,%i4
- or %l4,%g1,%l4
- stx %l4,[%i0-24]
- sllx %g3,%i5,%g1
-
- ldx [%i1+32],%g2
- srlx %g3,%i3,%l4
- or %i4,%g1,%i4
- stx %i4,[%i0-16]
- sllx %g2,%i5,%g1
-
- add %i1,32,%i1
- or %l4,%g1,%l4
- brnz %i2,.Loop
- stx %l4,[%i0-8]
-
-.Lend: srlx %g2,%i3,%g2
- stx %g2,[%i0-0]
-
- mov %l1,%i0
- jmpl %i7+8,%g0
- restore
+.Loop: ldx [%o1+8],%g3
+ add %o0,32,%o0
+ srlx %g2,%o3,%o4
+ addcc %o2,-4,%o2
+ sllx %g3,%o5,%g1
+
+ ldx [%o1+16],%g2
+ srlx %g3,%o3,%g4
+ or %o4,%g1,%o4
+ stx %o4,[%o0-32]
+ sllx %g2,%o5,%g1
+
+ ldx [%o1+24],%g3
+ srlx %g2,%o3,%o4
+ or %g4,%g1,%g4
+ stx %g4,[%o0-24]
+ sllx %g3,%o5,%g1
+
+ ldx [%o1+32],%g2
+ srlx %g3,%o3,%g4
+ or %o4,%g1,%o4
+ stx %o4,[%o0-16]
+ sllx %g2,%o5,%g1
+
+ add %o1,32,%o1
+ or %g4,%g1,%g4
+ bne,pt %xcc,.Loop
+ stx %g4,[%o0-8]
+
+.Lend: srlx %g2,%o3,%g2
+ stx %g2,[%o0-0]
+
+ jmpl %o7+8,%g0
+ mov %g5,%o0
END(__mpn_rshift)