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Make dbl-64 atan and tan into weak aliases.
This patch converts the dbl-64 implementations of atan and tan into weak aliases of __atan and __tan, in preparation for making them use libm_alias_double. Consequent changes are made to the x86_64 multiarch versions wrapping round them (with the dbl-64 functions, like other such functions, being made not to define their aliases at all if __atan or __tan are defined as macros by an including file). Tested for x86_64, and with build-many-glibcs.py. * sysdeps/ieee754/dbl-64/s_atan.c (atan): Rename to __atan and define as weak alias of __atan. Do not define any aliases if [__atan]. [NO_LONG_DOUBLE] (__atanl): Define as strong alias of __atan. [NO_LONG_DOUBLE] (atanl): Define as weak alias of __atanl. * sysdeps/ieee754/dbl-64/s_tan.c (tan): Rename to __tan and define as weak alias of __tan. Do not define any aliases if [__tan]. [NO_LONG_DOUBLE] (__tanl): Define as strong alias of __tan. [NO_LONG_DOUBLE] (tanl): Define as weak alias of __tanl. * sysdeps/x86_64/fpu/multiarch/s_atan-avx.c (atan): Rename to __atan. * sysdeps/x86_64/fpu/multiarch/s_atan-fma.c (atan): Likewise. * sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c (atan): Likewise. * sysdeps/x86_64/fpu/multiarch/s_atan.c (atan): Rename to __atan and define as weak alias of __atan. * sysdeps/x86_64/fpu/multiarch/s_tan-avx.c (tan): Rename to __atan. * sysdeps/x86_64/fpu/multiarch/s_tan-fma.c (tan): Likewise. * sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c (tan): Likewise. * sysdeps/x86_64/fpu/multiarch/s_tan.c (tan): Rename to __tan and define as weak alias of __tan.
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Joseph Myers
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ChangeLog
24
ChangeLog
@ -1,3 +1,27 @@
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2017-10-02 Joseph Myers <joseph@codesourcery.com>
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* sysdeps/ieee754/dbl-64/s_atan.c (atan): Rename to __atan and
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define as weak alias of __atan. Do not define any aliases if
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[__atan].
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[NO_LONG_DOUBLE] (__atanl): Define as strong alias of __atan.
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[NO_LONG_DOUBLE] (atanl): Define as weak alias of __atanl.
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* sysdeps/ieee754/dbl-64/s_tan.c (tan): Rename to __tan and define
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as weak alias of __tan. Do not define any aliases if [__tan].
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[NO_LONG_DOUBLE] (__tanl): Define as strong alias of __tan.
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[NO_LONG_DOUBLE] (tanl): Define as weak alias of __tanl.
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* sysdeps/x86_64/fpu/multiarch/s_atan-avx.c (atan): Rename to
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__atan.
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* sysdeps/x86_64/fpu/multiarch/s_atan-fma.c (atan): Likewise.
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* sysdeps/x86_64/fpu/multiarch/s_atan-fma4.c (atan): Likewise.
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* sysdeps/x86_64/fpu/multiarch/s_atan.c (atan): Rename to __atan
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and define as weak alias of __atan.
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* sysdeps/x86_64/fpu/multiarch/s_tan-avx.c (tan): Rename to
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__atan.
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* sysdeps/x86_64/fpu/multiarch/s_tan-fma.c (tan): Likewise.
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* sysdeps/x86_64/fpu/multiarch/s_tan-fma4.c (tan): Likewise.
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* sysdeps/x86_64/fpu/multiarch/s_tan.c (tan): Rename to __tan and
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define as weak alias of __tan.
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2017-10-02 Szabolcs Nagy <szabolcs.nagy@arm.com>
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* math/w_lgamma.c: New file.
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@ -61,7 +61,7 @@ __signArctan (double x, double y)
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/* An ultimate atan() routine. Given an IEEE double machine number x, */
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/* routine computes the correctly rounded (to nearest) value of atan(x). */
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double
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atan (double x)
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__atan (double x)
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{
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double cor, s1, ss1, s2, ss2, t1, t2, t3, t7, t8, t9, t10, u, u2, u3,
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v, vv, w, ww, y, yy, z, zz;
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@ -323,6 +323,10 @@ atanMp (double x, const int pr[])
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return y1; /*if impossible to do exact computing */
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}
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#ifdef NO_LONG_DOUBLE
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weak_alias (atan, atanl)
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#ifndef __atan
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weak_alias (__atan, atan)
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# ifdef NO_LONG_DOUBLE
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strong_alias (__atan, __atanl)
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weak_alias (__atanl, atanl)
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# endif
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#endif
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@ -53,7 +53,7 @@ void __mptan (double, mp_no *, int);
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double
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SECTION
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tan (double x)
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__tan (double x)
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{
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#include "utan.h"
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#include "utan.tbl"
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@ -843,6 +843,10 @@ tanMp (double x)
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return y;
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}
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#ifdef NO_LONG_DOUBLE
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weak_alias (tan, tanl)
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#ifndef __tan
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weak_alias (__tan, tan)
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# ifdef NO_LONG_DOUBLE
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strong_alias (__tan, __tanl)
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weak_alias (__tanl, tanl)
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# endif
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#endif
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@ -1,4 +1,4 @@
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#define atan __atan_avx
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#define __atan __atan_avx
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#define __add __add_avx
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#define __dbl_mp __dbl_mp_avx
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#define __mul __mul_avx
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@ -1,4 +1,4 @@
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#define atan __atan_fma
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#define __atan __atan_fma
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#define __add __add_fma
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#define __dbl_mp __dbl_mp_fma
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#define __mpatan __mpatan_fma
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@ -1,4 +1,4 @@
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#define atan __atan_fma4
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#define __atan __atan_fma4
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#define __add __add_fma4
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#define __dbl_mp __dbl_mp_fma4
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#define __mpatan __mpatan_fma4
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@ -21,7 +21,8 @@ extern double __redirect_atan (double);
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#define SYMBOL_NAME atan
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#include "ifunc-avx-fma4.h"
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libc_ifunc_redirected (__redirect_atan, atan, IFUNC_SELECTOR ());
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libc_ifunc_redirected (__redirect_atan, __atan, IFUNC_SELECTOR ());
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weak_alias (__atan, atan)
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#define atan __atan_sse2
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#define __atan __atan_sse2
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#include <sysdeps/ieee754/dbl-64/s_atan.c>
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@ -1,4 +1,4 @@
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#define tan __tan_avx
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#define __tan __tan_avx
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#define __dbl_mp __dbl_mp_avx
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#define __sub __sub_avx
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#define SECTION __attribute__ ((section (".text.avx")))
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@ -1,4 +1,4 @@
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#define tan __tan_fma
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#define __tan __tan_fma
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#define __dbl_mp __dbl_mp_fma
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#define __mpranred __mpranred_fma
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#define __mptan __mptan_fma
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@ -1,4 +1,4 @@
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#define tan __tan_fma4
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#define __tan __tan_fma4
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#define __dbl_mp __dbl_mp_fma4
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#define __mpranred __mpranred_fma4
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#define __mptan __mptan_fma4
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@ -21,7 +21,8 @@ extern double __redirect_tan (double);
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#define SYMBOL_NAME tan
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#include "ifunc-avx-fma4.h"
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libc_ifunc_redirected (__redirect_tan, tan, IFUNC_SELECTOR ());
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libc_ifunc_redirected (__redirect_tan, __tan, IFUNC_SELECTOR ());
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weak_alias (__tan, tan)
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#define tan __tan_sse2
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#define __tan __tan_sse2
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#include <sysdeps/ieee754/dbl-64/s_tan.c>
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