Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(571)

Unified Diff: gcc/gmp/mpn/x86/mod_34lsub1.asm

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git
Patch Set: Created 10 years, 5 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « gcc/gmp/mpn/x86/mod_1.asm ('k') | gcc/gmp/mpn/x86/mul_basecase.asm » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: gcc/gmp/mpn/x86/mod_34lsub1.asm
diff --git a/gcc/gmp/mpn/x86/mod_34lsub1.asm b/gcc/gmp/mpn/x86/mod_34lsub1.asm
deleted file mode 100644
index 68b4a73dbc78b060c3c55cf79a1ac973978453fd..0000000000000000000000000000000000000000
--- a/gcc/gmp/mpn/x86/mod_34lsub1.asm
+++ /dev/null
@@ -1,172 +0,0 @@
-dnl Generic x86 mpn_mod_34lsub1 -- mpn remainder modulo 2^24-1.
-
-dnl Copyright 2000, 2001, 2002, 2004 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 3 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 License
-dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
-
-include(`../config.m4')
-
-
-C cycles/limb
-C P5: 3.0
-C P6: 3.66
-C K6: 3.0
-C K7: 1.3
-C P4: 9
-
-
-C mp_limb_t mpn_mod_34lsub1 (mp_srcptr src, mp_size_t size)
-C
-
-defframe(PARAM_SIZE, 8)
-defframe(PARAM_SRC, 4)
-
-dnl re-use parameter space
-define(SAVE_EBX, `PARAM_SRC')
-
- TEXT
- ALIGN(16)
-PROLOGUE(mpn_mod_34lsub1)
-deflit(`FRAME',0)
-
- movl PARAM_SIZE, %ecx
- movl PARAM_SRC, %edx
-
- subl $2, %ecx
- ja L(three_or_more)
-
- movl (%edx), %eax
- jb L(one)
-
- movl 4(%edx), %ecx
- movl %eax, %edx
- shrl $24, %eax C src[0] low
-
- andl $0xFFFFFF, %edx C src[0] high
- addl %edx, %eax
- movl %ecx, %edx
-
- andl $0xFFFF, %ecx
- shrl $16, %edx C src[1] high
- addl %edx, %eax
-
- shll $8, %ecx C src[1] low
- addl %ecx, %eax
-
-L(one):
- ret
-
-
-L(three_or_more):
- C eax
- C ebx
- C ecx size-2
- C edx src
- C esi
- C edi
- C ebp
-
- movl %ebx, SAVE_EBX C and arrange 16-byte loop alignment
- xorl %ebx, %ebx
-
- pushl %esi FRAME_pushl()
- xorl %esi, %esi
-
- pushl %edi FRAME_pushl()
- xorl %eax, %eax C and clear carry flag
-
-
- C offset 0x40 here
-L(top):
- C eax acc 0mod3
- C ebx acc 1mod3
- C ecx counter, limbs
- C edx src
- C esi acc 2mod3
- C edi
- C ebp
-
- leal 12(%edx), %edx
- leal -2(%ecx), %ecx
-
- adcl -12(%edx), %eax
- adcl -8(%edx), %ebx
- adcl -4(%edx), %esi
-
- decl %ecx
- jg L(top)
-
-
- C ecx is -2, -1 or 0 representing 0, 1 or 2 more limbs, respectively
-
- movl $0xFFFFFFFF, %edi
- incl %ecx
- js L(combine)
-
- adcl (%edx), %eax
- movl $0xFFFFFF00, %edi
- decl %ecx
- js L(combine)
-
- adcl 4(%edx), %ebx
- movl $0xFFFF0000, %edi
-
-
-L(combine):
- C eax acc 0mod3
- C ebx acc 1mod3
- C ecx
- C edx
- C esi acc 2mod3
- C edi mask
- C ebp
-
- sbbl %ecx, %ecx C carry
- movl %eax, %edx C 0mod3
-
- shrl $24, %eax C 0mod3 high
- andl %edi, %ecx C carry masked
-
- subl %ecx, %eax C apply carry
- movl %ebx, %edi C 1mod3
-
- shrl $16, %ebx C 1mod3 high
- andl $0x00FFFFFF, %edx C 0mod3 low
-
- addl %edx, %eax C apply 0mod3 low
- andl $0xFFFF, %edi
-
- shll $8, %edi C 1mod3 low
- addl %ebx, %eax C apply 1mod3 high
-
- addl %edi, %eax C apply 1mod3 low
- movl %esi, %edx C 2mod3
-
- shrl $8, %esi C 2mod3 high
- andl $0xFF, %edx C 2mod3 low
-
- shll $16, %edx C 2mod3 low
- addl %esi, %eax C apply 2mod3 high
-
- addl %edx, %eax C apply 2mod3 low
- popl %edi FRAME_popl()
-
- movl SAVE_EBX, %ebx
- popl %esi FRAME_popl()
-
- ret
-
-EPILOGUE()
« no previous file with comments | « gcc/gmp/mpn/x86/mod_1.asm ('k') | gcc/gmp/mpn/x86/mul_basecase.asm » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698