diff options
| -rw-r--r-- | src/internal/libm.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/internal/libm.h b/src/internal/libm.h index 5669c046..09fcfde3 100644 --- a/src/internal/libm.h +++ b/src/internal/libm.h @@ -59,6 +59,23 @@ union ldshape { #error Unsupported long double representation #endif +/* Evaluate an expression as the specified type. With standard excess + precision handling a type cast or assignment is enough (with + -ffloat-store an assignment is required, in old compilers argument + passing and return statement may not drop excess precision). */ + +static inline float eval_as_float(float x) +{ + float y = x; + return y; +} + +static inline double eval_as_double(double x) +{ + double y = x; + return y; +} + /* fp_barrier returns its input, but limits code transformations as if it had a side-effect (e.g. observable io) and returned an arbitrary value. */ |