Update the in-tree GMP; fixes trac #832

[ghc-hetmet.git] / rts / gmp / mpn / x86 / k6 / mmx / rshift.asm

diff --git a/rts/gmp/mpn/x86/k6/mmx/rshift.asm b/rts/gmp/mpn/x86/k6/mmx/rshift.asm
deleted file mode 100644 (file)
index cc5948f..0000000
--- a/rts/gmp/mpn/x86/k6/mmx/rshift.asm
+++ /dev/null
@@ -1,122 +0,0 @@
-dnl  AMD K6 mpn_rshift -- mpn right shift.
-dnl 
-dnl  K6: 3.0 cycles/limb
-
-
-dnl  Copyright (C) 1999, 2000 Free Software Foundation, Inc.
-dnl 
-dnl  This file is part of the GNU MP Library.
-dnl 
-dnl  The GNU MP Library is free software; you can redistribute it and/or
-dnl  modify it under the terms of the GNU Lesser General Public License as
-dnl  published by the Free Software Foundation; either version 2.1 of the
-dnl  License, or (at your option) any later version.
-dnl 
-dnl  The GNU MP Library is distributed in the hope that it will be useful,
-dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-dnl  Lesser General Public License for more details.
-dnl 
-dnl  You should have received a copy of the GNU Lesser General Public
-dnl  License along with the GNU MP Library; see the file COPYING.LIB.  If
-dnl  not, write to the Free Software Foundation, Inc., 59 Temple Place -
-dnl  Suite 330, Boston, MA 02111-1307, USA.
-
-
-include(`../config.m4')
-
-
-C mp_limb_t mpn_rshift (mp_ptr dst, mp_srcptr src, mp_size_t size,
-C                       unsigned shift);
-C
-C The loop runs at 3 cycles/limb, limited by decoding and by having 3 mmx
-C instructions.  This is despite every second fetch being unaligned.
-
-
-defframe(PARAM_SHIFT,16)
-defframe(PARAM_SIZE, 12)
-defframe(PARAM_SRC,  8)
-defframe(PARAM_DST,  4)
-deflit(`FRAME',0)
-
-       .text
-       ALIGN(32)
-
-PROLOGUE(mpn_rshift)
-deflit(`FRAME',0)
-
-       C The 1 limb case can be done without the push %ebx, but it's then
-       C still the same speed.  The push is left as a free helping hand for
-       C the two_or_more code.
-
-       movl    PARAM_SIZE, %eax
-       pushl   %ebx                    FRAME_pushl()
-
-       movl    PARAM_SRC, %ebx
-       decl    %eax
-
-       movl    PARAM_SHIFT, %ecx
-       jnz     L(two_or_more)
-
-       movl    (%ebx), %edx            C src limb
-       movl    PARAM_DST, %ebx
-
-       shrdl(  %cl, %edx, %eax)        C return value
-
-       shrl    %cl, %edx
-
-       movl    %edx, (%ebx)            C dst limb
-       popl    %ebx
-
-       ret
-
-
-       ALIGN(16)       C avoid offset 0x1f
-L(two_or_more):
-       C eax   size-1
-       C ebx   src
-       C ecx   shift
-       C edx
-
-       movl    (%ebx), %edx    C src low limb
-       negl    %ecx
-
-       addl    $32, %ecx       C 32-shift
-       movd    PARAM_SHIFT, %mm6
-
-       shll    %cl, %edx       C retval
-       movl    PARAM_DST, %ecx
-
-       leal    (%ebx,%eax,4), %ebx
-
-       leal    -4(%ecx,%eax,4), %ecx
-       negl    %eax
-
-
-L(simple):
-       C eax   counter (negative)
-       C ebx   &src[size-1]
-       C ecx   &dst[size-1]
-       C edx   retval
-       C
-       C mm0   scratch
-       C mm6   shift
-
-Zdisp( movq,   0,(%ebx,%eax,4), %mm0)
-       incl    %eax
-
-       psrlq   %mm6, %mm0
-
-Zdisp( movd,   %mm0, 0,(%ecx,%eax,4))
-       jnz     L(simple)
-
-
-       movq    %mm0, (%ecx)
-       movl    %edx, %eax
-
-       popl    %ebx
-
-       emms
-       ret
-
-EPILOGUE()