Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpn / powerpc64 / sqr_diagonal.asm

diff --git a/gmp/mpn/powerpc64/sqr_diagonal.asm b/gmp/mpn/powerpc64/sqr_diagonal.asm
new file mode 100644 (file)
index 0000000..07f60e0
--- /dev/null
+++ b/gmp/mpn/powerpc64/sqr_diagonal.asm
@@ -0,0 +1,55 @@
+dnl  PowerPC-64 mpn_sqr_diagonal.
+
+dnl  Copyright 2001, 2002, 2003, 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 POWER3/PPC630:    18
+C POWER4/PPC970:     8
+
+C INPUT PARAMETERS
+C rp   r3
+C up   r4
+C n    r5
+
+ASM_START()
+PROLOGUE(mpn_sqr_diagonal)
+ifdef(`HAVE_ABI_mode32',
+`      rldicl  r5, r5, 0, 32')         C zero extend n
+       mtctr   r5
+       ld      r0, 0(r4)
+       bdz     L(end)
+       ALIGN(16)
+
+L(top):        mulld   r5, r0, r0
+       mulhdu  r6, r0, r0
+       ld      r0, 8(r4)
+       addi    r4, r4, 8
+       std     r5, 0(r3)
+       std     r6, 8(r3)
+       addi    r3, r3, 16
+       bdnz    L(top)
+
+L(end):        mulld   r5, r0, r0
+       mulhdu  r6, r0, r0
+       std     r5, 0(r3)
+       std     r6, 8(r3)
+
+       blr
+EPILOGUE()