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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/submul_1.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/submul_1.S')
-rw-r--r--sysdeps/sparc/sparc64/submul_1.S38
1 files changed, 17 insertions, 21 deletions
diff --git a/sysdeps/sparc/sparc64/submul_1.S b/sysdeps/sparc/sparc64/submul_1.S
index ce9a80464f..8f86916133 100644
--- a/sysdeps/sparc/sparc64/submul_1.S
+++ b/sysdeps/sparc/sparc64/submul_1.S
@@ -30,29 +30,26 @@
    s2_limb	o3  */
 
 ENTRY(__mpn_submul_1)
-	!#PROLOGUE#	0
 	save	%sp,-192,%sp
-	!#PROLOGUE#	1
 
 	sub	%g0,%i2,%o7
-	sllx	%o7,3,%g5
-	sub	%i1,%g5,%o3
-	sub	%i0,%g5,%o4
 	mov	0,%o0			! zero cy_limb
-
+	sllx	%o7,3,%o7
+	sethi	%hi(0x80000000),%o2
 	srl	%i3,0,%o1		! extract low 32 bits of s2_limb
+	sub	%i1,%o7,%o3
 	srlx	%i3,32,%i3		! extract high 32 bits of s2_limb
-	mov	1,%o2
-	sllx	%o2,32,%o2		! o2 = 0x100000000
+	sub	%i0,%o7,%o4
+	add	%o2,%o2,%o2		! o2 = 0x100000000
 
 	!   hi   !
              !  mid-1 !
              !  mid-2 !
 		 !   lo   !
-.Loop:
-	sllx	%o7,3,%g1
-	ldx	[%o3+%g1],%g5
+1:
+	ldx	[%o3+%o7],%g5
 	srl	%g5,0,%i0		! zero hi bits
+	ldx	[%o4+%o7],%l1
 	srlx	%g5,32,%g5
 	mulx	%o1,%i0,%i4		! lo product
 	mulx	%i3,%i0,%i1		! mid-1 product
@@ -63,25 +60,24 @@ ENTRY(__mpn_submul_1)
 	addcc	%i1,%l2,%i1		! add mid products
 	mov	0,%l0			! we need the carry from that add...
 	movcs	%xcc,%o2,%l0		! ...compute it and...
+	sllx	%i1,32,%i0		!  align low bits of mid product
 	add	%i5,%l0,%i5		! ...add to bit 32 of the hi product
-	sllx	%i1,32,%i0		! align low bits of mid product
 	srl	%i4,0,%g5		! zero high 32 bits of lo product
 	add	%i0,%g5,%i0		! combine into low 64 bits of result
 	srlx	%i1,32,%i1		! extract high bits of mid product...
+	addcc	%i0,%o0,%i0		!  add cy_limb to low 64 bits of result
 	add	%i5,%i1,%i1		! ...and add them to the high result
-	addcc	%i0,%o0,%i0		! add cy_limb to low 64 bits of result
 	mov	0,%g5
 	movcs	%xcc,1,%g5
-	add	%o7,1,%o7
-	ldx	[%o4+%g1],%l1
 	subcc	%l1,%i0,%i0
-	movcs	%xcc,1,%g5
-	stx	%i0,[%o4+%g1]
-	brnz	%o7,.Loop
+	stx	%i0,[%o4+%o7]
+	add	%g5,1,%l1
+	movcs	%xcc,%l1,%g5
+	addcc	%o7,8,%o7
+	bne,pt	%xcc,1b
 	 add	%i1,%g5,%o0		! compute new cy_limb
 
-	mov	%o0,%i0
-	jmpl	%i7+8,%g0
-	 restore
+	jmpl	%i7+8, %g0
+	 restore %o0,%g0,%o0
 
 END(__mpn_submul_1)