1 //===-- floatunssidfvfp.S - Implement floatunssidfvfp ---------------------===// 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 double __floatunssidfvfp(unsigned int a); 14 // 15 // Converts a 32-bit int to a double precision float. 16 // Uses Darwin calling convention where a double precision result is 17 // return in GPR register pair. 18 // 19 .syntax unified 20 .align 2 21 DEFINE_COMPILERRT_FUNCTION(__floatunssidfvfp) 22 vmov s15, r0 // move int to float register s15 23 vcvt.f64.u32 d7, s15 // convert 32-bit int in s15 to double in d7 24 vmov r0, r1, d7 // move d7 to result register pair r0/r1 25 bx lr 26
