diff options
Diffstat (limited to 'powerpc-cpu/sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S')
| -rw-r--r-- | powerpc-cpu/sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/powerpc-cpu/sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S b/powerpc-cpu/sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S deleted file mode 100644 index 952d2aa6a5..0000000000 --- a/powerpc-cpu/sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S +++ /dev/null @@ -1,97 +0,0 @@ -/* llround function. PowerPC32 on PowerPC64 version. - Copyright (C) 2004, 2006 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA - 02110-1301 USA. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> - - .section .rodata.cst8,"aM",@progbits,8 - .align 2 -.LC0: /* 0.0 */ - .long 0x00000000 -.LC1: /* 0.5 */ - .long 0x3f000000 - - .section ".text" - -/* long [r3] lround (float x [fp1]) - IEEE 1003.1 lround function. IEEE specifies "round to the nearest - integer value, rounding halfway cases away from zero, regardless of - the current rounding mode." However PowerPC Architecture defines - "round to Nearest" as "Choose the best approximation. In case of a - tie, choose the one that is even (least significant bit o).". - So we can't use the PowerPC "round to Nearest" mode. Instead we set - "round toward Zero" mode and round by adding +-0.5 before rounding - to the integer value. */ - -ENTRY (__llround) - stwu r1,-16(r1) - cfi_adjust_cfa_offset (16) -#ifdef SHARED - mflr r11 - cfi_register(lr,r11) -# ifdef HAVE_ASM_PPC_REL16 - bcl 20,31,1f -1: mflr r9 - addis r9,r9,.LC0-1b@ha - addi r9,r9,.LC0-1b@l -# else - bl _GLOBAL_OFFSET_TABLE_@local-4 - mflr r10 - lwz r9,.LC0@got(10) -# endif - mtlr r11 - cfi_same_value (lr) - lfs fp12,0(r9) - lfs fp10,.LC1-.LC0(r9) -#else - lis r9,.LC0@ha - lis r10,.LC1@ha - lfs fp12,.LC0@l(r9) - lfs fp10,.LC1@l(r10) -#endif - fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ - ble- cr6,.L4 - fadd fp1,fp1,fp10 /* x+= 0.5; */ -.L9: - fctidz fp2,fp1 /* Convert To Integer DW round toward 0. */ - stfd fp2,8(r1) - nop /* Ensure the following load is in a different dispatch */ - nop /* group to avoid pipe stall on POWER4&5. */ - nop - lwz r4,12(r1) - lwz r3,8(r1) - addi r1,r1,16 - blr -.L4: - fsub fp1,fp1,fp10 /* x-= 0.5; */ - b .L9 - END (__llround) - -weak_alias (__llround, llround) - -strong_alias (__llround, __llroundf) -weak_alias (__llround, llroundf) - -#ifdef NO_LONG_DOUBLE -weak_alias (__llround, llroundl) -strong_alias (__llround, __llroundl) -#endif -#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1) -compat_symbol (libm, __llround, llroundl, GLIBC_2_1) -#endif |