fixunssfsivfp.S revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0
1//===-- fixunssfsivfp.S - Implement fixunssfsivfp -------------------------===// 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 __fixunssfsivfp(float a); 14// 15// Converts single precision float to a 32-bit unsigned int rounding towards 16// zero. All negative values become zero. 17// Uses Darwin calling convention where a single precision parameter is 18// passed in a GPR.. 19// 20 .syntax unified 21 .p2align 2 22DEFINE_COMPILERRT_FUNCTION(__fixunssfsivfp) 23 vmov s15, r0 // load float register from R0 24 vcvt.u32.f32 s15, s15 // convert single to 32-bit unsigned into s15 25 vmov r0, s15 // move s15 to result register 26 bx lr 27END_COMPILERRT_FUNCTION(__fixunssfsivfp) 28