diff options
Diffstat (limited to 'contrib/compiler-rt/lib/builtins/fixunsdfdi.c')
| -rw-r--r-- | contrib/compiler-rt/lib/builtins/fixunsdfdi.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/contrib/compiler-rt/lib/builtins/fixunsdfdi.c b/contrib/compiler-rt/lib/builtins/fixunsdfdi.c index f4f689e..2e0d87e 100644 --- a/contrib/compiler-rt/lib/builtins/fixunsdfdi.c +++ b/contrib/compiler-rt/lib/builtins/fixunsdfdi.c @@ -10,12 +10,35 @@ #define DOUBLE_PRECISION #include "fp_lib.h" -typedef du_int fixuint_t; -#include "fp_fixuint_impl.inc" ARM_EABI_FNALIAS(d2ulz, fixunsdfdi) +#ifndef __SOFT_FP__ +/* Support for systems that have hardware floating-point; can set the invalid + * flag as a side-effect of computation. + */ + +COMPILER_RT_ABI du_int +__fixunsdfdi(double a) +{ + if (a <= 0.0) return 0; + su_int high = a/0x1p32f; + su_int low = a - (double)high*0x1p32f; + return ((du_int)high << 32) | low; +} + +#else +/* Support for systems that don't have hardware floating-point; there are no + * flags to set, and we don't want to code-gen to an unknown soft-float + * implementation. + */ + +typedef du_int fixuint_t; +#include "fp_fixuint_impl.inc" + COMPILER_RT_ABI du_int __fixunsdfdi(fp_t a) { return __fixuint(a); } + +#endif |
