177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao//===-- fixdfsivfp.S - Implement fixdfsivfp -----------------------===// 277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// 377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// The LLVM Compiler Infrastructure 477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// 577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// This file is distributed under the University of Illinois Open Source 677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// License. See LICENSE.TXT for details. 777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// 877ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao//===----------------------------------------------------------------------===// 977ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 1077ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao#include "../assembly.h" 1177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao 1277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// 1377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// extern int __fixdfsivfp(double a); 1477ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// 1577ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// Converts double precision float to a 32-bit int rounding towards zero. 1677ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// Uses Darwin calling convention where a double precision parameter is 1777ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// passed in GPR register pair. 1877ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao// 1977ed6142daed1e068fbda64405d0de9845e40e1Shih-wei LiaoDEFINE_COMPILERRT_FUNCTION(__fixdfsivfp) 2077ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao fmdrr d7, r0, r1 // load double register from R0/R1 2177ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao ftosizd s15, d7 // convert double to 32-bit int into s15 2277ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao fmrs r0, s15 // move s15 to result register 2377ed6142daed1e068fbda64405d0de9845e40e1Shih-wei Liao bx lr 24