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// SPDX-License-Identifier: MIT
// Copyright (c) 2015-2021 Zig Contributors
// This file is part of [zig](https://ziglang.org/), which is MIT licensed.
// The MIT license requires this copyright notice to be included in all copies
// and substantial portions of the software.
const builtin = @import("builtin");
const std = @import("std");
const twop52: f64 = 0x1.0p52;
const twop32: f64 = 0x1.0p32;
pub fn __floatdidf(a: i64) callconv(.C) f64 {
@setRuntimeSafety(builtin.is_test);
if (a == 0) return 0;
var low = @bitCast(i64, twop52);
const high = @intToFloat(f64, @truncate(i32, a >> 32)) * twop32;
low |= @bitCast(i64, a & 0xFFFFFFFF);
return (high - twop52) + @bitCast(f64, low);
}
pub fn __aeabi_l2d(arg: i64) callconv(.AAPCS) f64 {
@setRuntimeSafety(false);
return @call(.{ .modifier = .always_inline }, __floatdidf, .{arg});
}
test "import floatdidf" {
_ = @import("floatdidf_test.zig");
}
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