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//===-- truncdfsf2vfp.S - Implement truncdfsf2vfp -------------------------===//
// 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 float __truncdfsf2vfp(double a);
// Converts double precision float to signle precision result.
// Uses Darwin calling convention where a double precision parameter is
// passed in a R0/R1 pair and a signle precision result is returned in R0.
.syntax unified
.p2align 2
vcvt.f32.f64 s0, d0
vmov d7, r0, r1 // load double from r0/r1 pair
vcvt.f32.f64 s15, d7 // convert double to single (trucate precision)
vmov r0, s15 // return result in r0
bx lr