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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [libgcc/] [config/] [lm32/] [_ashlsi3.S] - Blame information for rev 320

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1 272 jeremybenn 
# _ashlsi3.S for Lattice Mico32
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# Contributed by Jon Beniston  and Richard Henderson.
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#
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# Copyright (C) 2009 Free Software Foundation, Inc.
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#
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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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#
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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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#
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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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#
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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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# .
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#
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/* Arithmetic left shift.  */
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        .text
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        .global __ashlsi3
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        .type __ashlsi3,@function
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        .align 4
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__ashlsi3:
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        /* Only use 5 LSBs, as that's all the h/w shifter uses.  */
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        andi    r2, r2, 0x1f
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        /* Get address of offset into unrolled shift loop to jump to.  */
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#ifdef __PIC__
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        lw      r3, (gp+got(__ashlsi3_0))
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#else
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        mvhi    r3, hi(__ashlsi3_0)
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        ori     r3, r3, lo(__ashlsi3_0)
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#endif
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        add     r2, r2, r2
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        add     r2, r2, r2
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        sub     r3, r3, r2
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        b       r3
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__ashlsi3_31:
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        add     r1, r1, r1
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__ashlsi3_30:
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        add     r1, r1, r1
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__ashlsi3_29:
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        add     r1, r1, r1
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__ashlsi3_28:
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        add     r1, r1, r1
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__ashlsi3_27:
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        add     r1, r1, r1
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__ashlsi3_26:
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        add     r1, r1, r1
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__ashlsi3_25:
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        add     r1, r1, r1
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__ashlsi3_24:
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        add     r1, r1, r1
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__ashlsi3_23:
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        add     r1, r1, r1
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__ashlsi3_22:
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        add     r1, r1, r1
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__ashlsi3_21:
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        add     r1, r1, r1
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__ashlsi3_20:
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        add     r1, r1, r1
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__ashlsi3_19:
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        add     r1, r1, r1
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__ashlsi3_18:
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        add     r1, r1, r1
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__ashlsi3_17:
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        add     r1, r1, r1
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__ashlsi3_16:
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        add     r1, r1, r1
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__ashlsi3_15:
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        add     r1, r1, r1
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__ashlsi3_14:
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        add     r1, r1, r1
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__ashlsi3_13:
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        add     r1, r1, r1
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__ashlsi3_12:
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        add     r1, r1, r1
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__ashlsi3_11:
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        add     r1, r1, r1
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__ashlsi3_10:
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        add     r1, r1, r1
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__ashlsi3_9:
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        add     r1, r1, r1
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__ashlsi3_8:
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        add     r1, r1, r1
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__ashlsi3_7:
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        add     r1, r1, r1
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__ashlsi3_6:
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        add     r1, r1, r1
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__ashlsi3_5:
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        add     r1, r1, r1
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__ashlsi3_4:
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        add     r1, r1, r1
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__ashlsi3_3:
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        add     r1, r1, r1
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__ashlsi3_2:
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        add     r1, r1, r1
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__ashlsi3_1:
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        add     r1, r1, r1
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__ashlsi3_0:
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        ret
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