1//===-- fixunsdfsivfp.S - Implement fixunsdfsivfp -------------------------===// 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#include "../assembly.h" 11 12// 13// extern unsigned int __fixunsdfsivfp(double a); 14// 15// Converts double precision float to a 32-bit unsigned int rounding towards 16// zero. All negative values become zero. 17// Uses Darwin calling convention where a double precision parameter is 18// passed in GPR register pair. 19// 20 .syntax unified 21 .p2align 2 22DEFINE_COMPILERRT_FUNCTION(__fixunsdfsivfp) 23 vmov d7, r0, r1 // load double register from R0/R1 24 vcvt.u32.f64 s15, d7 // convert double to 32-bit int into s15 25 vmov r0, s15 // move s15 to result register 26 bx lr 27END_COMPILERRT_FUNCTION(__fixunsdfsivfp) 28