1 /* ===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------=== 2 * 3 * The LLVM Compiler Infrastructure 4 * 5 * This file is dual licensed under the MIT and the University of Illinois Open 6 * Source Licenses. See LICENSE.TXT for details. 7 * 8 * ===----------------------------------------------------------------------=== 9 */ 10 11 #define DOUBLE_PRECISION 12 #include "fp_lib.h" 13 14 ARM_EABI_FNALIAS(d2ulz, fixunsdfdi) 15 16 #ifndef __SOFT_FP__ 17 /* Support for systems that have hardware floating-point; can set the invalid 18 * flag as a side-effect of computation. 19 */ 20 21 COMPILER_RT_ABI du_int 22 __fixunsdfdi(double a) 23 { 24 if (a <= 0.0) return 0; 25 su_int high = a / 4294967296.f; /* a / 0x1p32f; */ 26 su_int low = a - (double)high * 4294967296.f; /* high * 0x1p32f; */ 27 return ((du_int)high << 32) | low; 28 } 29 30 #else 31 /* Support for systems that don't have hardware floating-point; there are no 32 * flags to set, and we don't want to code-gen to an unknown soft-float 33 * implementation. 34 */ 35 36 typedef du_int fixuint_t; 37 #include "fp_fixuint_impl.inc" 38 39 COMPILER_RT_ABI du_int 40 __fixunsdfdi(fp_t a) { 41 return __fixuint(a); 42 } 43 44 #endif 45
