diff options
Diffstat (limited to 'sysdeps/libm-i387/s_asinh.S')
| -rw-r--r-- | sysdeps/libm-i387/s_asinh.S | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/libm-i387/s_asinh.S b/sysdeps/libm-i387/s_asinh.S index a71d0b66f4..45153fe2d3 100644 --- a/sysdeps/libm-i387/s_asinh.S +++ b/sysdeps/libm-i387/s_asinh.S @@ -1,5 +1,5 @@ /* ix87 specific implementation of arcsinh. - Copyright (C) 1996 Free Software Foundation, Inc. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. @@ -51,8 +51,12 @@ ENTRY(__asinh) andl $0x80000000, %ecx xorl %ecx, 8(%esp) fldl 4(%esp) // |x| + movl %eax, %edx cmpl $0x3e300000, %eax jb 2f // |x| < 2^-28 + orl $0x800fffff, %edx + incl %edx + jz 4f // x in ħInf or NaN fldln2 // log(2) : |x| cmpl $0x41b00000, %eax fxch // |x| : log(2) |