fixdfsivfp.S revision 225736
1263509Sdim//===-- fixdfsivfp.S - Implement fixdfsivfp -----------------------===// 2218885Sdim// 3218885Sdim// The LLVM Compiler Infrastructure 4218885Sdim// 5218885Sdim// This file is dual licensed under the MIT and the University of Illinois Open 6218885Sdim// Source Licenses. See LICENSE.TXT for details. 7218885Sdim// 8218885Sdim//===----------------------------------------------------------------------===// 9218885Sdim 10263509Sdim#include "../assembly.h" 11218885Sdim 12218885Sdim// 13218885Sdim// extern int __fixdfsivfp(double a); 14218885Sdim// 15218885Sdim// Converts double precision float to a 32-bit int rounding towards zero. 16218885Sdim// Uses Darwin calling convention where a double precision parameter is 17218885Sdim// passed in GPR register pair. 18218885Sdim// 19218885Sdim .align 2 20263509SdimDEFINE_COMPILERRT_FUNCTION(__fixdfsivfp) 21263509Sdim fmdrr d7, r0, r1 // load double register from R0/R1 22263509Sdim ftosizd s15, d7 // convert double to 32-bit int into s15 23218885Sdim fmrs r0, s15 // move s15 to result register 24218885Sdim bx lr 25218885Sdim