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Support _Float32 in libm_alias_float.

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This patch makes the libm_alias_float macro support creating _Float32
aliases, in preparation for enabling glibc support for that type.

Tested for x86_64; also tested with build-many-glibcs.py in
conjunction with other _Float32 changes.

	* sysdeps/generic/libm-alias-float.h: Include <bits/floatn.h>.
	[__HAVE_FLOAT32 && !__HAVE_DISTINCT_FLOAT32]
	(libm_alias_float_other_r): Create f32 alias.
	(libm_alias_float_r): Use semicolon before call to
	libm_alias_float_other_r.
This commit is contained in:
Joseph Myers
2017-12-06 22:14:09 +00:00
parent c191f64cd5
commit 26007a2f68
2 changed files with 15 additions and 2 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2017-12-06 Joseph Myers <joseph@codesourcery.com>
* sysdeps/generic/libm-alias-float.h: Include <bits/floatn.h>.
[__HAVE_FLOAT32 && !__HAVE_DISTINCT_FLOAT32]
(libm_alias_float_other_r): Create f32 alias.
(libm_alias_float_r): Use semicolon before call to
libm_alias_float_other_r.
* sysdeps/ia64/fpu/e_exp2f.S (__exp2f): Use exp2 not __exp2 as
second argument to libm_alias_float_other.
* sysdeps/ia64/fpu/e_log2f.S (__log2f): Use log2 not __log2 as

9
sysdeps/generic/libm-alias-float.h
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@ -19,11 +19,18 @@
#ifndef _LIBM_ALIAS_FLOAT_H
#define _LIBM_ALIAS_FLOAT_H
#include <bits/floatn.h>
/* Define _FloatN / _FloatNx aliases for a float libm function that
has internal name FROM ## f ## R and public names TO ## suffix ## R
for each suffix of a supported _FloatN / _FloatNx floating-point
type with the same format as float. */
#if __HAVE_FLOAT32 && !__HAVE_DISTINCT_FLOAT32
# define libm_alias_float_other_r(from, to, r) \
weak_alias (from ## f ## r, to ## f32 ## r)
#else
# define libm_alias_float_other_r(from, to, r)
#endif
/* Likewise, but without the R suffix. */
#define libm_alias_float_other(from, to) \
@ -37,7 +44,7 @@
names (where there is one name per format, not per type) or for
obsolescent functions not provided for _FloatN types. */
#define libm_alias_float_r(from, to, r) \
weak_alias (from ## f ## r, to ## f ## r) \
weak_alias (from ## f ## r, to ## f ## r); \
libm_alias_float_other_r (from, to, r)
/* Likewise, but without the R suffix. */