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b0e196a46f
JUMPTARGET. Instead append @local to __syscall_error. * sysdeps/powerpc/powerpc32/bsd-_setjmp.S: Delete all occurrences of JUMPTARGET. Instead append @local to labels. * sysdeps/powerpc/powerpc32/bsd-setjmp.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/setjmp-common.S: Likewise. * sysdeps/powerpc/powerpc32/ppc-mcount.S: Likewise. * sysdeps/powerpc/powerpc32/setjmp-common.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Use float constants. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_rint.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_lround.S: Likewise. Use one GOT slot to access both constants. * sysdeps/powerpc/powerpc32/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Likewise.
85 lines
2.4 KiB
ArmAsm
85 lines
2.4 KiB
ArmAsm
/* lround function. PowerPC32 version.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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.section .rodata.cst8,"aM",@progbits,8
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.align 2
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.LC0: /* 0.0 */
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.long 0x00000000
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.LC1: /* 0.5 */
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.long 0x3f000000
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.section ".text"
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/* long [r3] lround (float x [fp1])
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IEEE 1003.1 lround function. IEEE specifies "round to the nearest
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integer value, rounding halfway cases away from zero, regardless of
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the current rounding mode." However PowerPC Architecture defines
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"round to Nearest" as "Choose the best approximation. In case of a
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tie, choose the one that is even (least significant bit o).".
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So we can't use the PowerPC "round to Nearest" mode. Instead we set
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"round toward Zero" mode and round by adding +-0.5 before rounding
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to the integer value. */
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ENTRY (__lround)
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#ifdef SHARED
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mflr r11
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bl _GLOBAL_OFFSET_TABLE_@local-4
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mflr r10
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lwz r9,.LC0@got(10)
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mtlr r11
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lfs fp12,0(r9)
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#else
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lis r9,.LC0@ha
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lfs fp12,.LC0@l(r9)
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#endif
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#ifdef SHARED
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lfs fp10,.LC1-.LC0(r9)
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#else
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lis r9,.LC1@ha
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lfs fp10,.LC1@l(r9)
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#endif
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fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
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ble- cr6,.L4
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fadd fp1,fp1,fp10 /* x+= 0.5; */
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.L9:
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fctiwz fp2,fp1 /* Convert To Integer DW lround toward 0. */
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stfd fp2,-8(r1)
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nop /* Ensure the following load is in a different dispatch */
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nop /* group to avoid pipe stall on POWER4&5. */
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nop
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lwz r3,-4(r1)
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blr
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.L4:
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fsub fp1,fp1,fp10 /* x-= 0.5; */
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b .L9
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END (__lround)
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strong_alias (__lround, __lround)
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weak_alias (__lround, lround)
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strong_alias (__lround, __lroundf)
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weak_alias (__lround, lroundf)
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#ifdef NO_LONG_DOUBLE
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weak_alias (__lround, lroundl)
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strong_alias (__lround, __lroundl)
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#endif
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