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Support _Float64, _Float32x in libm_alias_double [committed]
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Tue, 5 Dec 2017 17:01:46 +0000
- Subject: Support _Float64, _Float32x in libm_alias_double [committed]
- Authentication-results: sourceware.org; auth=none
This patch makes the libm_alias_double macros support creating
_Float64 and _Float32x aliases, in preparation for enabling glibc
support for those types.
Tested for x86_64; also tested with build-many-glibcs.py in
conjunction with other _Float64 / _Float32x changes. Committed.
2017-12-05 Joseph Myers <joseph@codesourcery.com>
* sysdeps/generic/libm-alias-double.h: Include <bits/floatn.h>.
(libm_alias_double_other_r_f64): New macro.
(libm_alias_double_other_r_f32x): Likewise.
(libm_alias_double_other_r): Use libm_alias_double_other_r_f64 and
libm_alias_double_other_r_f32x.
(libm_alias_double_r): Use semicolon before call to
libm_alias_double_other_r.
* sysdeps/ieee754/ldbl-opt/libm-alias-double.h: Include
<bits/floatn.h>.
(libm_alias_double_other_r_f64): New macro.
(libm_alias_double_other_r_f32x): Likewise.
(libm_alias_double_other_r): Use libm_alias_double_other_r_f64 and
libm_alias_double_other_r_f32x.
diff --git a/sysdeps/generic/libm-alias-double.h b/sysdeps/generic/libm-alias-double.h
index 0593ad9..f222cf8 100644
--- a/sysdeps/generic/libm-alias-double.h
+++ b/sysdeps/generic/libm-alias-double.h
@@ -19,11 +19,29 @@
#ifndef _LIBM_ALIAS_DOUBLE_H
#define _LIBM_ALIAS_DOUBLE_H
+#include <bits/floatn.h>
+
+#if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64
+# define libm_alias_double_other_r_f64(from, to, r) \
+ weak_alias (from ## r, to ## f64 ## r)
+#else
+# define libm_alias_double_other_r_f64(from, to, r)
+#endif
+
+#if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X
+# define libm_alias_double_other_r_f32x(from, to, r) \
+ weak_alias (from ## r, to ## f32x ## r)
+#else
+# define libm_alias_double_other_r_f32x(from, to, r)
+#endif
+
/* Define _FloatN / _FloatNx aliases for a double libm function that
has internal name FROM ## R and public names TO ## suffix ## R for
each suffix of a supported _FloatN / _FloatNx floating-point type
with the same format as double. */
-#define libm_alias_double_other_r(from, to, r)
+#define libm_alias_double_other_r(from, to, r) \
+ libm_alias_double_other_r_f64 (from, to, r); \
+ libm_alias_double_other_r_f32x (from, to, r)
/* Likewise, but without the R suffix. */
#define libm_alias_double_other(from, to) \
@@ -40,11 +58,11 @@
# define libm_alias_double_r(from, to, r) \
weak_alias (from ## r, to ## r) \
strong_alias (from ## r, from ## l ## r) \
- weak_alias (from ## r, to ## l ## r) \
+ weak_alias (from ## r, to ## l ## r); \
libm_alias_double_other_r (from, to, r)
#else
# define libm_alias_double_r(from, to, r) \
- weak_alias (from ## r, to ## r) \
+ weak_alias (from ## r, to ## r); \
libm_alias_double_other_r (from, to, r)
#endif
diff --git a/sysdeps/ieee754/ldbl-opt/libm-alias-double.h b/sysdeps/ieee754/ldbl-opt/libm-alias-double.h
index f98e9d5..37ef612 100644
--- a/sysdeps/ieee754/ldbl-opt/libm-alias-double.h
+++ b/sysdeps/ieee754/ldbl-opt/libm-alias-double.h
@@ -19,15 +19,32 @@
#ifndef _LIBM_ALIAS_DOUBLE_H
#define _LIBM_ALIAS_DOUBLE_H
+#include <bits/floatn.h>
#include <math_ldbl_opt.h>
#include <first-versions.h>
#include <ldbl-compat-choose.h>
+#if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64
+# define libm_alias_double_other_r_f64(from, to, r) \
+ weak_alias (from ## r, to ## f64 ## r)
+#else
+# define libm_alias_double_other_r_f64(from, to, r)
+#endif
+
+#if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X
+# define libm_alias_double_other_r_f32x(from, to, r) \
+ weak_alias (from ## r, to ## f32x ## r)
+#else
+# define libm_alias_double_other_r_f32x(from, to, r)
+#endif
+
/* Define _FloatN / _FloatNx aliases for a double libm function that
has internal name FROM ## R and public names TO ## suffix ## R for
each suffix of a supported _FloatN / _FloatNx floating-point type
with the same format as double. */
-#define libm_alias_double_other_r(from, to, r)
+#define libm_alias_double_other_r(from, to, r) \
+ libm_alias_double_other_r_f64 (from, to, r); \
+ libm_alias_double_other_r_f32x (from, to, r)
/* Likewise, but without the R suffix. */
#define libm_alias_double_other(from, to) \
--
Joseph S. Myers
joseph@codesourcery.com