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finitel: Use correct GCC builtin 

__builtin_isinf_sign doesn't reflect the correct return value for NaN
to emulate finite function.  Use __builtin_isfinite instead whichg is available
since GCC 4.4 just as __builtin_isinf_sign.

	* libm/common/sl_finite.c (finitel): Use __builtin_isfinite.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2016-03-26 20:29:20 +01:00
parent 3e446e9723
commit 373f81d17c
1 changed files with 1 additions and 1 deletions
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newlib/libm/common/sl_finite.c
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@ -19,7 +19,7 @@ finitel (long double x)
Some architectures for example have an 80-bit long double whereas Some architectures for example have an 80-bit long double whereas
others use 128-bits. We use macros and comiler builtin functions others use 128-bits. We use macros and comiler builtin functions
to avoid specific knowledge of the long double format. */ to avoid specific knowledge of the long double format. */
return __builtin_isinf_sign (x) == 0; return __builtin_isfinite (x);
#endif #endif
} }