diff options
Diffstat (limited to 'gcc/doc/tm.texi.in')
| -rw-r--r-- | gcc/doc/tm.texi.in | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in index fad6d1044ea..b51d7b38800 100644 --- a/gcc/doc/tm.texi.in +++ b/gcc/doc/tm.texi.in @@ -4221,26 +4221,7 @@ refers to the global ``variable'' @code{errno}. (On certain systems, macro, a reasonable default is used. @end defmac -@cindex C99 math functions, implicit usage -@defmac TARGET_C99_FUNCTIONS -When this macro is nonzero, GCC will implicitly optimize @code{sin} calls into -@code{sinf} and similarly for other functions defined by C99 standard. The -default is zero because a number of existing systems lack support for these -functions in their runtime so this macro needs to be redefined to one on -systems that do support the C99 runtime. -@end defmac - -@cindex sincos math function, implicit usage -@defmac TARGET_HAS_SINCOS -When this macro is nonzero, GCC will implicitly optimize calls to @code{sin} -and @code{cos} with the same argument to a call to @code{sincos}. The -default is zero. The target has to provide the following functions: -@smallexample -void sincos(double x, double *sin, double *cos); -void sincosf(float x, float *sin, float *cos); -void sincosl(long double x, long double *sin, long double *cos); -@end smallexample -@end defmac +@hook TARGET_LIBC_HAS_FUNCTION @defmac NEXT_OBJC_RUNTIME Set this macro to 1 to use the "NeXT" Objective-C message sending conventions |