blob: 44e6dbd4989e11615af315adb046805e3558245c [file] [log] [blame]
//===-- fixunsdfsivfp.S - Implement fixunsdfsivfp -------------------------===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "../assembly.h"
// extern unsigned int __fixunsdfsivfp(double a);
// Converts double precision float to a 32-bit unsigned int rounding towards
// zero. All negative values become zero.
// Uses Darwin calling convention where a double precision parameter is
// passed in GPR register pair.
.syntax unified
.p2align 2
vcvt.u32.f64 s0, d0
vmov r0, s0
vmov d7, r0, r1 // load double register from R0/R1
vcvt.u32.f64 s15, d7 // convert double to 32-bit int into s15
vmov r0, s15 // move s15 to result register
bx lr