diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/fpu/s_llrintf.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/s_llrintf.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c b/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c index 205df4e03a..7151bed1c9 100644 --- a/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c +++ b/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c @@ -1,5 +1,5 @@ /* Round a float value to a long long in the current rounding mode. - Copyright (C) 1997-2015 Free Software Foundation, Inc. + Copyright (C) 1997-2016 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 @@ -17,10 +17,30 @@ <http://www.gnu.org/licenses/>. */ #include <math.h> +#include <math_private.h> +#include <stdint.h> long long int __llrintf (float x) { - return (long long int) __rintf (x); + float rx = __rintf (x); + if (HAVE_PPC_FCTIDZ || rx != x) + return (long long int) rx; + else + { + float arx = fabsf (rx); + /* Avoid incorrect exceptions from libgcc conversions (as of GCC + 5): <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59412>. */ + if (arx < 0x1p31f) + return (long long int) (long int) rx; + else if (!(arx < 0x1p55f)) + return (long long int) (long int) (rx * 0x1p-32f) << 32; + uint32_t i0; + GET_FLOAT_WORD (i0, rx); + int exponent = ((i0 >> 23) & 0xff) - 0x7f; + unsigned long long int mant = (i0 & 0x7fffff) | 0x800000; + mant <<= exponent - 23; + return (long long int) ((i0 & 0x80000000) != 0 ? -mant : mant); + } } weak_alias (__llrintf, llrintf) |