1 /* ===-- fixunssfdi.c - Implement __fixunssfdi -----------------------------=== 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 SINGLE_PRECISION 12 #include "fp_lib.h" 13 14 ARM_EABI_FNALIAS(f2ulz, fixunssfdi) 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 __fixunssfdi(float a) 23 { 24 if (a <= 0.0f) return 0; 25 double da = a; 26 su_int high = da / 4294967296.f; /* da / 0x1p32f; */ 27 su_int low = da - (double)high * 4294967296.f; /* high * 0x1p32f; */ 28 return ((du_int)high << 32) | low; 29 } 30 31 #else 32 /* Support for systems that don't have hardware floating-point; there are no 33 * flags to set, and we don't want to code-gen to an unknown soft-float 34 * implementation. 35 */ 36 37 typedef du_int fixuint_t; 38 #include "fp_fixuint_impl.inc" 39 40 COMPILER_RT_ABI du_int 41 __fixunssfdi(fp_t a) { 42 return __fixuint(a); 43 } 44 45 #endif 46
