1276789Sdim//===-- fixdfsivfp.S - Implement fixdfsivfp -----------------------===// 2276789Sdim// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6276789Sdim// 7276789Sdim//===----------------------------------------------------------------------===// 8276789Sdim 9276789Sdim#include "../assembly.h" 10276789Sdim 11276789Sdim// 12276789Sdim// extern int __fixdfsivfp(double a); 13276789Sdim// 14276789Sdim// Converts double precision float to a 32-bit int rounding towards zero. 15353358Sdim// Uses Darwin calling convention where a double precision parameter is 16276789Sdim// passed in GPR register pair. 17276789Sdim// 18276789Sdim .syntax unified 19276789Sdim .p2align 2 20276789SdimDEFINE_COMPILERRT_FUNCTION(__fixdfsivfp) 21314564Sdim#if defined(COMPILER_RT_ARMHF_TARGET) 22314564Sdim vcvt.s32.f64 s0, d0 23314564Sdim vmov r0, s0 24314564Sdim#else 25276789Sdim vmov d7, r0, r1 // load double register from R0/R1 26276789Sdim vcvt.s32.f64 s15, d7 // convert double to 32-bit int into s15 27276789Sdim vmov r0, s15 // move s15 to result register 28314564Sdim#endif 29276789Sdim bx lr 30276789SdimEND_COMPILERRT_FUNCTION(__fixdfsivfp) 31309124Sdim 32309124SdimNO_EXEC_STACK_DIRECTIVE 33309124Sdim 34