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| author | Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> | 2018-06-19 21:41:16 -0300 |
|---|---|---|
| committer | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2020-02-28 08:20:02 -0600 |
| commit | 8dbfea3a2094798a52cebddde01d255483f49665 (patch) | |
| tree | d8b74d5f7e0e474b46f28b77cf244be5ffcc2b0c /math/math.h | |
| parent | 6437fecca30deb88e5901ab03168cb7b40c7e0a7 (diff) | |
| download | glibc-8dbfea3a2094798a52cebddde01d255483f49665.tar.gz glibc-8dbfea3a2094798a52cebddde01d255483f49665.tar.xz glibc-8dbfea3a2094798a52cebddde01d255483f49665.zip | |
ldbl-128ibm-compat: Redirect long double functions to f128/ieee128 functions
Modify the headers to redirect long double functions to global __*f128 symbols or to __*ieee128 otherwise. Most of the functions in math.h benefit from the infrastructure already available for __LDBL_COMPAT. The only exceptions are nexttowardf and nexttoward that need especial treatment. Both math/bits/mathcalls-helper-functions.h and math/bits/mathcalls.h were modified in order to provide alternative redirection destinations that are essential to support functions that should not be redirected to the same name pattern of the rest of the functions, i.e.: __fpclassify, __signbit, __iseqsig, __issignaling, isinf, finite and isnan, which will be redirected to __*f128 instead of __*ieee128 used for the rest.
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/math/math.h b/math/math.h index e13b3f3a29..1692ff4a45 100644 --- a/math/math.h +++ b/math/math.h @@ -283,6 +283,10 @@ enum extern type __MATH_PRECNAME(function,suffix) args __THROW #define __MATHDECL_1(type, function, suffix, args) \ __MATHDECL_1_IMPL(type, function, suffix, args) +/* Ignore the alias by default. The alias is only useful with + redirections. */ +#define __MATHDECL_ALIAS(type, function, suffix, args, alias) \ + __MATHDECL_1(type, function, suffix, args) #define __MATHREDIR(type, function, suffix, args, to) \ extern type __REDIRECT_NTH (__MATH_PRECNAME (function, suffix), args, to) @@ -338,6 +342,35 @@ extern long double __REDIRECT_NTH (nexttowardl, # undef __MATHDECL_1 # define __MATHDECL_1(type, function,suffix, args) \ __MATHREDIR(type, function, suffix, args, __CONCAT(function,suffix)) + +# elif __LONG_DOUBLE_USES_FLOAT128 == 1 +# ifdef __REDIRECT_NTH +# ifdef __USE_ISOC99 +extern float __REDIRECT_NTH (nexttowardf, (float __x, long double __y), + __nexttowardf_to_ieee128) + __attribute__ ((__const__)); +extern double __REDIRECT_NTH (nexttoward, (double __x, long double __y), + __nexttoward_to_ieee128) + __attribute__ ((__const__)); + +#define __dremieee128 __remainderieee128 +#define __gammaieee128 __lgammaieee128 + +# endif +# endif + +# undef __MATHDECL_1 +# undef __MATHDECL_ALIAS + +# define __REDIRTO(function, suffix) \ + __ ## function ## ieee128 ## suffix +# define __REDIRTO_ALT(function, suffix) \ + __ ## function ## f128 ## suffix + +# define __MATHDECL_1(type, function, suffix, args) \ + __MATHREDIR (type, function, suffix, args, __REDIRTO (function, suffix)) +# define __MATHDECL_ALIAS(type, function, suffix, args, alias) \ + __MATHREDIR (type, function, suffix, args, __REDIRTO_ALT (alias, suffix)) # endif /* Include the file of declarations again, this time using `long double' @@ -350,15 +383,22 @@ extern long double __REDIRECT_NTH (nexttowardl, # define __MATH_DECLARE_LDOUBLE 1 # include <bits/mathcalls-helper-functions.h> # include <bits/mathcalls.h> + # undef _Mdouble_ # undef __MATH_PRECNAME # undef __MATH_DECLARING_DOUBLE # undef __MATH_DECLARING_FLOATN -# if defined __LDBL_COMPAT +# if defined __LDBL_COMPAT \ + || __LONG_DOUBLE_USES_FLOAT128 == 1 +# undef __REDIRTO +# undef __REDIRTO_ALT # undef __MATHDECL_1 +# undef __MATHDECL_ALIAS # define __MATHDECL_1(type, function, suffix, args) \ __MATHDECL_1_IMPL(type, function, suffix, args) +# define __MATHDECL_ALIAS(type, function, suffix, args, alias) \ + __MATHDECL_1(type, function, suffix, args) # endif # endif /* !(__NO_LONG_DOUBLE_MATH && _LIBC) || __LDBL_COMPAT */ @@ -488,6 +528,7 @@ extern long double __REDIRECT_NTH (nexttowardl, #undef __MATHDECL_1_IMPL #undef __MATHDECL_1 +#undef __MATHDECL_ALIAS #undef __MATHDECL #undef __MATHCALL @@ -521,12 +562,18 @@ extern long double __REDIRECT_NTH (nexttowardl, # undef __MATHCALL_NARROW # define __MATHCALL_NARROW(func, redir, nargs) \ __MATHCALL_NARROW_REDIR (func, redir, nargs) +# elif __LONG_DOUBLE_USES_FLOAT128 == 1 +# define __MATHCALL_REDIR_NAME(name) __ ## f32 ## name ## ieee128 +# undef __MATHCALL_NARROW +# define __MATHCALL_NARROW(func, redir, nargs) \ + __MATHCALL_NARROW_REDIR (func, redir, nargs) # endif # include <bits/mathcalls-narrow.h> # undef _Mret_ # undef _Marg_ # undef __MATHCALL_NAME -# ifdef __LDBL_COMPAT +# if defined __LDBL_COMPAT \ + || __LONG_DOUBLE_USES_FLOAT128 == 1 # undef __MATHCALL_REDIR_NAME # undef __MATHCALL_NARROW # define __MATHCALL_NARROW(func, redir, nargs) \ @@ -541,12 +588,18 @@ extern long double __REDIRECT_NTH (nexttowardl, # undef __MATHCALL_NARROW # define __MATHCALL_NARROW(func, redir, nargs) \ __MATHCALL_NARROW_REDIR (func, redir, nargs) +# elif __LONG_DOUBLE_USES_FLOAT128 == 1 +# define __MATHCALL_REDIR_NAME(name) __ ## f64 ## name ## ieee128 +# undef __MATHCALL_NARROW +# define __MATHCALL_NARROW(func, redir, nargs) \ + __MATHCALL_NARROW_REDIR (func, redir, nargs) # endif # include <bits/mathcalls-narrow.h> # undef _Mret_ # undef _Marg_ # undef __MATHCALL_NAME -# ifdef __LDBL_COMPAT +# if defined __LDBL_COMPAT \ + || __LONG_DOUBLE_USES_FLOAT128 == 1 # undef __MATHCALL_REDIR_NAME # undef __MATHCALL_NARROW # define __MATHCALL_NARROW(func, redir, nargs) \ |