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math: Add math-use-builtins-fabs (BZ#29027)

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Both float, double, and _Float128 are assumed to be supported
(float and double already only uses builtins).  Only long double
is parametrized due GCC bug 29253 which prevents its usage on
powerpc.

It allows to remove i686, ia64, x86_64, powerpc, and sparc arch
specific implementation.

On ia64 it also fixes the sNAN handling:

  math/test-float64x-fabs
  math/test-ldouble-fabs

Checked on x86_64-linux-gnu, i686-linux-gnu, powerpc-linux-gnu,
powerpc64-linux-gnu, sparc64-linux-gnu, and ia64-linux-gnu.
This commit is contained in:
Adhemerval Zanella
2022-04-01 10:19:57 -03:00
parent 04b30fe4f8
commit efeb2bd1ab
12 changed files with 29 additions and 208 deletions
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sysdeps/generic/math-use-builtins.h
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@ -36,5 +36,6 @@
#include <math-use-builtins-fma.h>
#include <math-use-builtins-fmax.h>
#include <math-use-builtins-fmin.h>
#include <math-use-builtins-fabs.h>
#endif /* MATH_USE_BUILTINS_H */