feeeff5cfe
gcc:
* config.gcc (epiphany-*-*): New architecture.
(epiphany-*-elf): New configuration.
* config/epiphany, common/config/epiphany : New directories.
* doc/extend.texi (disinterrupt attribute): Add Epiphany.
(interrupt attribute): Add Epiphany.
(long_call, short_call attribute): Add Epiphany.
* doc/invoke.texi (Options): Add Epiphany options.
* doc/md.texi (Machine Constraints): Add Epiphany constraints.
* doc/install.texi (Options specification):
Add --with-stack-offset=@var{num} description.
(host/target specific issues): Add epiphany-*-elf.
* doc/contrib.texi (Contributors): Mention Epiphany port.
gcc/testsuite:
* gcc.c-torture/execute/ieee/mul-subnormal-single-1.x:
Disable test on Epiphany.
* gcc.c-torture/execute/20101011-1.c: Disable test on Epiphany.
* gcc.dg/stack-usage-1.c [__epiphany__] (SIZE): Define.
* gcc.dg/pragma-pack-3.c: Disable test on Epiphany.
* g++.dg/parse/pragma3.C: Likewise.
* stackalign/builtin-apply-2.c (STACK_ARGUMENTS_SIZE): Define.
(bar): Use it.
* gcc.dg/weak/typeof-2.c [epiphany-*-*]: Add option -mshort-calls.
* gcc.dg/tls/thr-cse-1.c: Likewise.
* g++.dg/opt/devirt2.C: Likewise.
* gcc.dg/20020312-2.c [epiphany-*-*] (PIC_REG): Define.
* gcc.dg/builtin-apply2.c [__epiphany__]: (STACK_ARGUMENTS_SIZE): 20.
* gcc.target/epiphany: New directory.
libgcc:
* config.host (epiphany-*-elf*): New configuration.
* config/epiphany: New Directory.
contrib:
* contrib-list.mk: Add Epiphany configurations.
From-SVN: r181016
64 lines
2.1 KiB
ArmAsm
64 lines
2.1 KiB
ArmAsm
/* Unsigned 32 bit division optimized for Epiphany.
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Copyright (C) 2009, 2011 Free Software Foundation, Inc.
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Contributed by Embecosm on behalf of Adapteva, Inc.
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This file is part of GCC.
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This file is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3, or (at your option) any
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later version.
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This file is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "epiphany-asm.h"
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/* Because we handle a divident with bit 31 set with truncating integer
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arithmetic, there is no rounding-related overflow. */
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FSTAB (__umodsi3,T_UINT)
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.global SYM(__umodsi3)
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.balign 4
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HIDDEN_FUNC(__umodsi3)
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SYM(__umodsi3):
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float r2,r0
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mov TMP1,%low(0xb0800000) ; ??? this would be faster with small data
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float TMP2,r1
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movt TMP1,%high(0xb0800000)
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asr TMP0,r0,8
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sub TMP0,TMP0,TMP1
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mov TMP1,%low(.L0step)
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movgteu r2,TMP0
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sub r2,r2,TMP2
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blteu .L0step
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asr r2,r2,23
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movt TMP1,%high(.L0step)
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lsl TMP2,r2,3
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lsl r2,r1,r2` sub r2,r0,r2` movgteu r0,r2 ; STEP(r2)
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sub r2,TMP1,TMP2
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jr r2
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#define STEP(n) lsl.l r2,r1,n` sub r2,r0,r2` movgteu r0,r2
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.balign 8,,2
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STEP(31)` STEP(30)` STEP(29)` STEP(28)`
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STEP(27)` STEP(26)` STEP(25)` STEP(24)`
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STEP(23)` STEP(22)` STEP(21)` STEP(20)`
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STEP(19)` STEP(18)` STEP(17)` STEP(16)`
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STEP(15)` STEP(14)` STEP(13)` STEP(12)`
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STEP(11)` STEP(10)` STEP(9)` STEP(8)`
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STEP(7)` STEP(6)` STEP(5)` STEP(4)` STEP(3)` STEP(2)` STEP(1)
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.L0step:STEP(0)
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.Lret_r0:
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rts
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ENDFUNC(__umodsi3)
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