1 //===-- floatunssidfvfp.S - Implement floatunssidfvfp ---------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. 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 DEFINE_COMPILERRT_FUNCTION(__floatunssidfvfp) 20 fmsr s15, r0 // move int to float register s15 21 fuitod d7, s15 // convert 32-bit int in s15 to double in d7 22 fmrrd r0, r1, d7 // move d7 to result register pair r0/r1 23 bx lr 24
