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const std = @import("std");
const builtin = @import("builtin");
const expect = std.testing.expect;
test "@byteSwap integers" {
if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_wasm) {
// TODO: Remove when self-hosted wasm supports more types for byteswap
const ByteSwapIntTest = struct {
fn run() !void {
try t(u8, 0x12, 0x12);
try t(u16, 0x1234, 0x3412);
try t(u24, 0x123456, 0x563412);
try t(i24, @as(i24, @bitCast(@as(u24, 0xf23456))), 0x5634f2);
try t(i24, 0x1234f6, @as(i24, @bitCast(@as(u24, 0xf63412))));
try t(u32, 0x12345678, 0x78563412);
try t(i32, @as(i32, @bitCast(@as(u32, 0xf2345678))), 0x785634f2);
try t(i32, 0x123456f8, @as(i32, @bitCast(@as(u32, 0xf8563412))));
try t(u64, 0x123456789abcdef1, 0xf1debc9a78563412);
try t(u0, @as(u0, 0), 0);
try t(i8, @as(i8, -50), -50);
try t(i16, @as(i16, @bitCast(@as(u16, 0x1234))), @as(i16, @bitCast(@as(u16, 0x3412))));
try t(i24, @as(i24, @bitCast(@as(u24, 0x123456))), @as(i24, @bitCast(@as(u24, 0x563412))));
try t(i32, @as(i32, @bitCast(@as(u32, 0x12345678))), @as(i32, @bitCast(@as(u32, 0x78563412))));
try t(i64, @as(i64, @bitCast(@as(u64, 0x123456789abcdef1))), @as(i64, @bitCast(@as(u64, 0xf1debc9a78563412))));
}
fn t(comptime I: type, input: I, expected_output: I) !void {
try std.testing.expect(expected_output == @byteSwap(input));
}
};
try comptime ByteSwapIntTest.run();
try ByteSwapIntTest.run();
return;
}
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_x86_64 and builtin.target.ofmt != .elf and builtin.target.ofmt != .macho) return error.SkipZigTest;
const ByteSwapIntTest = struct {
fn run() !void {
try t(u0, 0, 0);
try t(u8, 0x12, 0x12);
try t(u16, 0x1234, 0x3412);
try t(u24, 0x123456, 0x563412);
try t(i24, @as(i24, @bitCast(@as(u24, 0xf23456))), 0x5634f2);
try t(i24, 0x1234f6, @as(i24, @bitCast(@as(u24, 0xf63412))));
try t(u32, 0x12345678, 0x78563412);
try t(i32, @as(i32, @bitCast(@as(u32, 0xf2345678))), 0x785634f2);
try t(i32, 0x123456f8, @as(i32, @bitCast(@as(u32, 0xf8563412))));
try t(u40, 0x123456789a, 0x9a78563412);
try t(i48, 0x123456789abc, @as(i48, @bitCast(@as(u48, 0xbc9a78563412))));
try t(u56, 0x123456789abcde, 0xdebc9a78563412);
try t(u64, 0x123456789abcdef1, 0xf1debc9a78563412);
try t(u88, 0x123456789abcdef1112131, 0x312111f1debc9a78563412);
try t(u96, 0x123456789abcdef111213141, 0x41312111f1debc9a78563412);
try t(u128, 0x123456789abcdef11121314151617181, 0x8171615141312111f1debc9a78563412);
try t(u0, @as(u0, 0), 0);
try t(i8, @as(i8, -50), -50);
try t(i16, @as(i16, @bitCast(@as(u16, 0x1234))), @as(i16, @bitCast(@as(u16, 0x3412))));
try t(i24, @as(i24, @bitCast(@as(u24, 0x123456))), @as(i24, @bitCast(@as(u24, 0x563412))));
try t(i32, @as(i32, @bitCast(@as(u32, 0x12345678))), @as(i32, @bitCast(@as(u32, 0x78563412))));
try t(u40, @as(i40, @bitCast(@as(u40, 0x123456789a))), @as(u40, 0x9a78563412));
try t(i48, @as(i48, @bitCast(@as(u48, 0x123456789abc))), @as(i48, @bitCast(@as(u48, 0xbc9a78563412))));
try t(i56, @as(i56, @bitCast(@as(u56, 0x123456789abcde))), @as(i56, @bitCast(@as(u56, 0xdebc9a78563412))));
try t(i64, @as(i64, @bitCast(@as(u64, 0x123456789abcdef1))), @as(i64, @bitCast(@as(u64, 0xf1debc9a78563412))));
try t(i88, @as(i88, @bitCast(@as(u88, 0x123456789abcdef1112131))), @as(i88, @bitCast(@as(u88, 0x312111f1debc9a78563412))));
try t(i96, @as(i96, @bitCast(@as(u96, 0x123456789abcdef111213141))), @as(i96, @bitCast(@as(u96, 0x41312111f1debc9a78563412))));
try t(
i128,
@as(i128, @bitCast(@as(u128, 0x123456789abcdef11121314151617181))),
@as(i128, @bitCast(@as(u128, 0x8171615141312111f1debc9a78563412))),
);
}
fn t(comptime I: type, input: I, expected_output: I) !void {
try std.testing.expect(expected_output == @byteSwap(input));
}
};
try comptime ByteSwapIntTest.run();
try ByteSwapIntTest.run();
}
fn vector8() !void {
var v = @Vector(2, u8){ 0x12, 0x13 };
_ = &v;
const result = @byteSwap(v);
try expect(result[0] == 0x12);
try expect(result[1] == 0x13);
}
test "@byteSwap vectors u8" {
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
try comptime vector8();
try vector8();
}
fn vector16() !void {
var v = @Vector(2, u16){ 0x1234, 0x2345 };
_ = &v;
const result = @byteSwap(v);
try expect(result[0] == 0x3412);
try expect(result[1] == 0x4523);
}
test "@byteSwap vectors u16" {
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
try comptime vector16();
try vector16();
}
fn vector24() !void {
var v = @Vector(2, u24){ 0x123456, 0x234567 };
_ = &v;
const result = @byteSwap(v);
try expect(result[0] == 0x563412);
try expect(result[1] == 0x674523);
}
test "@byteSwap vectors u24" {
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
try comptime vector24();
try vector24();
}
fn vector0() !void {
var v = @Vector(2, u0){ 0, 0 };
_ = &v;
const result = @byteSwap(v);
try expect(result[0] == 0);
try expect(result[1] == 0);
}
test "@byteSwap vectors u0" {
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest;
try comptime vector0();
try vector0();
}
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