diff options
Diffstat (limited to 'include/math.h')
| -rw-r--r-- | include/math.h | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/include/math.h b/include/math.h index 9ab7aa4403..eed953072b 100644 --- a/include/math.h +++ b/include/math.h @@ -79,16 +79,29 @@ fabsf128 (_Float128 x) # if !(defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) # ifndef NO_MATH_REDIRECT -/* Declare sqrt for use within GLIBC. Compilers typically inline sqrt as a - single instruction. Use an asm to avoid use of PLTs if it doesn't. */ -float (sqrtf) (float) asm ("__ieee754_sqrtf"); -double (sqrt) (double) asm ("__ieee754_sqrt"); -# ifndef __NO_LONG_DOUBLE_MATH -long double (sqrtl) (long double) asm ("__ieee754_sqrtl"); +/* Declare some functions for use within GLIBC. Compilers typically + inline those functions as a single instruction. Use an asm to + avoid use of PLTs if it doesn't. */ +# define MATH_REDIRECT(FUNC, PREFIX, ARGS) \ + float (FUNC ## f) (ARGS (float)) asm (PREFIX #FUNC "f"); \ + double (FUNC) (ARGS (double)) asm (PREFIX #FUNC ); \ + MATH_REDIRECT_LDBL (FUNC, PREFIX, ARGS) \ + MATH_REDIRECT_F128 (FUNC, PREFIX, ARGS) +# ifdef __NO_LONG_DOUBLE_MATH +# define MATH_REDIRECT_LDBL(FUNC, PREFIX, ARGS) +# else +# define MATH_REDIRECT_LDBL(FUNC, PREFIX, ARGS) \ + long double (FUNC ## l) (ARGS (long double)) asm (PREFIX #FUNC "l"); # endif -# if __HAVE_DISTINCT_FLOAT128 > 0 -_Float128 (sqrtf128) (_Float128) asm ("__ieee754_sqrtf128"); +# if __HAVE_DISTINCT_FLOAT128 +# define MATH_REDIRECT_F128(FUNC, PREFIX, ARGS) \ + _Float128 (FUNC ## f128) (ARGS (_Float128)) asm (PREFIX #FUNC "f128"); +# else +# define MATH_REDIRECT_F128(FUNC, PREFIX, ARGS) # endif +# define MATH_REDIRECT_UNARY_ARGS(TYPE) TYPE +MATH_REDIRECT (sqrt, "__ieee754_", MATH_REDIRECT_UNARY_ARGS) +MATH_REDIRECT (floor, "__", MATH_REDIRECT_UNARY_ARGS) # endif # endif |