Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpn / x86_64 / com_n.asm

diff --git a/gmp/mpn/x86_64/com_n.asm b/gmp/mpn/x86_64/com_n.asm
new file mode 100644 (file)
index 0000000..fba9384
--- /dev/null
+++ b/gmp/mpn/x86_64/com_n.asm
@@ -0,0 +1,77 @@
+dnl  AMD64 mpn_com_n.
+
+dnl  Copyright 2004, 2005, 2006 Free Software Foundation, Inc.
+
+dnl  This file is part of the GNU MP Library.
+
+dnl  The GNU MP Library is free software; you can redistribute it and/or modify
+dnl  it under the terms of the GNU Lesser General Public License as published
+dnl  by the Free Software Foundation; either version 3 of the License, or (at
+dnl  your option) any later version.
+
+dnl  The GNU MP Library is distributed in the hope that it will be useful, but
+dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+dnl  License for more details.
+
+dnl  You should have received a copy of the GNU Lesser General Public License
+dnl  along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+
+C          cycles/limb
+C K8,K9:       1.25
+C K10:         1.25
+C P4:          2.78
+C P6-15:       1.1
+
+C INPUT PARAMETERS
+define(`rp',`%rdi')
+define(`up',`%rsi')
+define(`n',`%rdx')
+
+
+ASM_START()
+       TEXT
+       ALIGN(32)
+PROLOGUE(mpn_com_n)
+       movq    (up), %r8
+       movl    %edx, %eax
+       leaq    (up,n,8), up
+       leaq    (rp,n,8), rp
+       negq    n
+       andl    $3, %eax
+       je      L(b00)
+       cmpl    $2, %eax
+       jc      L(b01)
+       je      L(b10)
+
+L(b11):        notq    %r8
+       movq    %r8, (rp,n,8)
+       decq    n
+       jmp     L(e11)
+L(b10):        addq    $-2, n
+       jmp     L(e10)
+       .byte   0x90,0x90,0x90,0x90,0x90,0x90
+L(b01):        notq    %r8
+       movq    %r8, (rp,n,8)
+       incq    n
+       jz      L(ret)
+
+L(oop):        movq    (up,n,8), %r8
+L(b00):        movq    8(up,n,8), %r9
+       notq    %r8
+       notq    %r9
+       movq    %r8, (rp,n,8)
+       movq    %r9, 8(rp,n,8)
+L(e11):        movq    16(up,n,8), %r8
+L(e10):        movq    24(up,n,8), %r9
+       notq    %r8
+       notq    %r9
+       movq    %r8, 16(rp,n,8)
+       movq    %r9, 24(rp,n,8)
+       addq    $4, n
+       jnc     L(oop)
+L(ret):        ret
+EPILOGUE()