diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | math/math.h | 17 |
2 files changed, 18 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog index 82e03e8d05..bd76c1e28d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2019-02-26 Adhemerval Zanella <adhemerval.zanella@linaro.org> + + * math/math.h (fpclassify, isfinite, isnormal, isnan): Use builtin for + clang 2.8. + (signbit): Use builtin for clang 3.3. + (isinf): Use builtin for clang 3.7. + 2019-03-25 Adhemerval Zanella <adhemerval.zanella@linaro.org> * sysdeps/powerpc/fpu/s_float_bitwise.h: Remove file. diff --git a/math/math.h b/math/math.h index ffbc24af09..d70ec3877c 100644 --- a/math/math.h +++ b/math/math.h @@ -874,7 +874,8 @@ enum the __SUPPORT_SNAN__ check may be skipped for those versions. */ /* Return number of classification appropriate for X. */ -# if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ \ +# if ((__GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__) \ + || __glibc_clang_prereq (2,8)) \ && (!defined __OPTIMIZE_SIZE__ || defined __cplusplus) /* The check for __cplusplus allows the use of the builtin, even when optimization for size is on. This is provided for @@ -889,7 +890,7 @@ enum # endif /* Return nonzero value if sign of X is negative. */ -# if __GNUC_PREREQ (6,0) +# if __GNUC_PREREQ (6,0) || __glibc_clang_prereq (3,3) # define signbit(x) __builtin_signbit (x) # elif defined __cplusplus /* In C++ mode, __MATH_TG cannot be used, because it relies on @@ -907,14 +908,16 @@ enum # endif /* Return nonzero value if X is not +-Inf or NaN. */ -# if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ +# if (__GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__) \ + || __glibc_clang_prereq (2,8) # define isfinite(x) __builtin_isfinite (x) # else # define isfinite(x) __MATH_TG ((x), __finite, (x)) # endif /* Return nonzero value if X is neither zero, subnormal, Inf, nor NaN. */ -# if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ +# if (__GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__) \ + || __glibc_clang_prereq (2,8) # define isnormal(x) __builtin_isnormal (x) # else # define isnormal(x) (fpclassify (x) == FP_NORMAL) @@ -922,7 +925,8 @@ enum /* Return nonzero value if X is a NaN. We could use `fpclassify' but we already have this functions `__isnan' and it is faster. */ -# if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ +# if (__GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__) \ + || __glibc_clang_prereq (2,8) # define isnan(x) __builtin_isnan (x) # else # define isnan(x) __MATH_TG ((x), __isnan, (x)) @@ -939,7 +943,8 @@ enum # define isinf(x) \ (__builtin_types_compatible_p (__typeof (x), _Float128) \ ? __isinff128 (x) : __builtin_isinf_sign (x)) -# elif __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ +# elif (__GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__) \ + || __glibc_clang_prereq (3,7) # define isinf(x) __builtin_isinf_sign (x) # else # define isinf(x) __MATH_TG ((x), __isinf, (x)) |