diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu/s_round.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/s_round.S | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_round.S b/sysdeps/powerpc/powerpc64/fpu/s_round.S index c0b6d46fea..15afca1543 100644 --- a/sysdeps/powerpc/powerpc64/fpu/s_round.S +++ b/sysdeps/powerpc/powerpc64/fpu/s_round.S @@ -1,5 +1,5 @@ /* round function. PowerPC64 version. - Copyright (C) 2004 Free Software Foundation, Inc. + 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 @@ -18,14 +18,13 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <math_ldbl_opt.h> .section ".toc","aw" .LC0: /* 2**52 */ .tc FD_43300000_0[TC],0x4330000000000000 .LC1: /* 0.5 */ .tc FD_3fe00000_0[TC],0x3fe0000000000000 -.LC2: /* -0.0 */ - .tc FD_80000000_0[TC],0x8000000000000000 .section ".text" /* double [fp1] round (double x [fp1]) @@ -38,7 +37,7 @@ "Round toward Zero" mode and round by adding +-0.5 before rounding to the integer value. */ -ENTRY (__round) +EALIGN (__round, 4, 0) CALL_MCOUNT 0 mffs fp11 /* Save current FPU rounding mode. */ lfd fp13,.LC0@toc(2) @@ -53,7 +52,8 @@ ENTRY (__round) fadd fp1,fp1,fp10 /* x+= 0.5; */ fadd fp1,fp1,fp13 /* x+= TWO52; */ fsub fp1,fp1,fp13 /* x-= TWO52; */ -.L9: + fabs fp1,fp1 /* if (x == 0.0) */ + /* x = 0.0; */ mtfsf 0x01,fp11 /* restore previous rounding mode. */ blr .L4: @@ -61,10 +61,10 @@ ENTRY (__round) bge- cr6,.L9 /* if (x < 0.0) */ fsub fp1,fp9,fp13 /* x-= TWO52; */ fadd fp1,fp1,fp13 /* x+= TWO52; */ - fcmpu cr5,fp1,fp12 /* if (x > 0.0) */ - mtfsf 0x01,fp11 /* restore previous rounding mode. */ - bnelr+ cr5 - lfd fp1,.LC2@toc(2) /* x must be -0.0 for the 0.0 case. */ + fnabs fp1,fp1 /* if (x == 0.0) */ + /* x = -0.0; */ +.L9: + mtfsf 0x01,fp11 /* restore previous rounding mode. */ blr END (__round) @@ -74,3 +74,6 @@ weak_alias (__round, round) weak_alias (__round, roundl) strong_alias (__round, __roundl) #endif +#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1) +compat_symbol (libm, __round, roundl, GLIBC_2_1) +#endif |