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 .align 2 22 DEFINE_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 27
