diff options
| author | Torbjorn Granlund <tege@gmplib.org> | 2013-09-12 16:27:35 +0200 |
|---|---|---|
| committer | Torbjorn Granlund <tege@gmplib.org> | 2013-09-12 16:27:35 +0200 |
| commit | 30099666bb2d812cabe3d83663a31771e1544e05 (patch) | |
| tree | ea8c0a4a050477cec77cbb6a075bfd60ea9dd418 /mpn/ia64 | |
| parent | c4593efd5c0e1aee4e31b16a279318d848dc8744 (diff) | |
| download | gmp-30099666bb2d812cabe3d83663a31771e1544e05.tar.gz | |
Use dep for combining table base and low bits.
Diffstat (limited to 'mpn/ia64')
| -rw-r--r-- | mpn/ia64/gcd_1.asm | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/mpn/ia64/gcd_1.asm b/mpn/ia64/gcd_1.asm index 3a173dda0..ce5a10f04 100644 --- a/mpn/ia64/gcd_1.asm +++ b/mpn/ia64/gcd_1.asm @@ -3,7 +3,7 @@ dnl Itanium-2 mpn_gcd_1 -- mpn by 1 gcd. dnl Contributed to the GNU project by Kevin Ryde, innerloop by Torbjorn dnl Granlund. -dnl Copyright 2002, 2003, 2004, 2005, 2012 Free Software Foundation, Inc. +dnl Copyright 2002, 2003, 2004, 2005, 2012, 2013 Free Software Foundation, Inc. dnl This file is part of the GNU MP Library. @@ -25,7 +25,7 @@ include(`../config.m4') C cycles/bitpair (1x1 gcd) C Itanium: ? -C Itanium 2: 5.8 (trimmable to 5.64 with huge ctz_table) +C Itanium 2: 5.1 C mpn_gcd_1 (mp_srcptr xp, mp_size_t xsize, mp_limb_t y); @@ -93,6 +93,7 @@ deflit(MAXSHIFT, 7) deflit(MASK, eval((m4_lshift(1,MAXSHIFT))-1)) .section ".rodata" + ALIGN(m4_lshift(1,MAXSHIFT)) C align table to allow using dep ctz_table: .byte MAXSHIFT forloop(i,1,MASK, @@ -175,27 +176,26 @@ ifdef(`HAVE_ABI_32', } ;; addl r22 = @ltoffx(ctz_table#), r1 + mov r25 = m4_lshift(MASK, MAXSHIFT) ;; ld8.mov r22 = [r22], ctz_table# br L(ent) - ALIGN(32) L(top): .pred.rel "mutex", p6,p7 -.mmi; and r20 = MASK, r19 - (p7) mov y = x +.mmi; (p7) mov y = x (p6) sub x = x, y -.mmi; (p7) mov x = r19 - nop 0 + dep r21 = r19, r22, 0, MAXSHIFT C concat(table,lowbits) +.mmi; and r20 = MASK, r19 + (p7) mov x = r19 nop 0 ;; L(mid): -.mmb; add r21 = r22, r20 +.mmb; ld1 r16 = [r21] cmp.eq p10,p0 = 0, r20 (p10) br.spnt.few.clr L(shift_alot) ;; -.mmi; ld1 r16 = [r21] - ;; +.mmi; nop 0 nop 0 shr.u x = x, r16 ;; @@ -215,7 +215,9 @@ L(done_y): br.ret.sptk.many b0 L(shift_alot): - extr.u r20 = x, MAXSHIFT, MAXSHIFT + and r20 = x, r25 shr.u x = x, MAXSHIFT + ;; + dep r21 = x, r22, 0, MAXSHIFT br L(mid) EPILOGUE() |