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-rw-r--r--lib/builtins/fixunsdfti.c36
1 files changed, 6 insertions, 30 deletions
diff --git a/lib/builtins/fixunsdfti.c b/lib/builtins/fixunsdfti.c
index cc6c84ff5cb5..f8046a02632b 100644
--- a/lib/builtins/fixunsdfti.c
+++ b/lib/builtins/fixunsdfti.c
@@ -6,42 +6,18 @@
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
- *
- * This file implements __fixunsdfti for the compiler_rt library.
- *
- * ===----------------------------------------------------------------------===
*/
#include "int_lib.h"
#ifdef CRT_HAS_128BIT
-
-/* Returns: convert a to a unsigned long long, rounding toward zero.
- * Negative values all become zero.
- */
-
-/* Assumption: double is a IEEE 64 bit floating point type
- * tu_int is a 64 bit integral type
- * value in double is representable in tu_int or is negative
- * (no range checking performed)
- */
-
-/* seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm */
+#define DOUBLE_PRECISION
+#include "fp_lib.h"
+typedef tu_int fixuint_t;
+#include "fp_fixuint_impl.inc"
COMPILER_RT_ABI tu_int
-__fixunsdfti(double a)
-{
- double_bits fb;
- fb.f = a;
- int e = ((fb.u.s.high & 0x7FF00000) >> 20) - 1023;
- if (e < 0 || (fb.u.s.high & 0x80000000))
- return 0;
- tu_int r = 0x0010000000000000uLL | (fb.u.all & 0x000FFFFFFFFFFFFFuLL);
- if (e > 52)
- r <<= (e - 52);
- else
- r >>= (52 - e);
- return r;
+__fixunsdfti(fp_t a) {
+ return __fixuint(a);
}
-
#endif /* CRT_HAS_128BIT */