1 //===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #define DOUBLE_PRECISION 10 #include "fp_lib.h" 11 12 #ifndef __SOFTFP__ 13 // Support for systems that have hardware floating-point; can set the invalid 14 // flag as a side-effect of computation. 15 16 COMPILER_RT_ABI du_int __fixunsdfdi(double a) { 17 if (a <= 0.0) 18 return 0; 19 su_int high = a / 4294967296.f; // a / 0x1p32f; 20 su_int low = a - (double)high * 4294967296.f; // high * 0x1p32f; 21 return ((du_int)high << 32) | low; 22 } 23 24 #else 25 // Support for systems that don't have hardware floating-point; there are no 26 // flags to set, and we don't want to code-gen to an unknown soft-float 27 // implementation. 28 29 typedef du_int fixuint_t; 30 #include "fp_fixuint_impl.inc" 31 32 COMPILER_RT_ABI du_int __fixunsdfdi(fp_t a) { return __fixuint(a); } 33 34 #endif 35 36 #if defined(__ARM_EABI__) 37 #if defined(COMPILER_RT_ARMHF_TARGET) 38 AEABI_RTABI du_int __aeabi_d2ulz(fp_t a) { return __fixunsdfdi(a); } 39 #else 40 COMPILER_RT_ALIAS(__fixunsdfdi, __aeabi_d2ulz) 41 #endif 42 #endif 43 44 #if defined(__MINGW32__) && defined(__arm__) 45 COMPILER_RT_ALIAS(__fixunsdfdi, __dtou64) 46 #endif 47