mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
f26dda2117
Most of this migration was performed automatically with `zig fmt`. There were a few exceptions which I had to manually fix: * `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten * `@truncate`'s fixup is incorrect for vectors * Test cases are not formatted, and their error locations change
96 lines
3.1 KiB
Zig
96 lines
3.1 KiB
Zig
const builtin = @import("builtin");
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const std = @import("std");
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const expect = std.testing.expect;
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const expectEqual = std.testing.expectEqual;
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test "@popCount integers" {
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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try comptime testPopCountIntegers();
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try testPopCountIntegers();
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}
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test "@popCount 128bit integer" {
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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comptime {
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try expect(@popCount(@as(u128, 0b11111111000110001100010000100001000011000011100101010001)) == 24);
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try expect(@popCount(@as(i128, 0b11111111000110001100010000100001000011000011100101010001)) == 24);
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}
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{
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var x: u128 = 0b11111111000110001100010000100001000011000011100101010001;
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try expect(@popCount(x) == 24);
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}
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try expect(@popCount(@as(i128, 0b11111111000110001100010000100001000011000011100101010001)) == 24);
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}
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fn testPopCountIntegers() !void {
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{
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var x: u32 = 0xffffffff;
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try expect(@popCount(x) == 32);
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}
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{
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var x: u5 = 0x1f;
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try expect(@popCount(x) == 5);
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}
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{
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var x: u32 = 0xaa;
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try expect(@popCount(x) == 4);
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}
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{
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var x: u32 = 0xaaaaaaaa;
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try expect(@popCount(x) == 16);
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}
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{
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var x: u32 = 0xaaaaaaaa;
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try expect(@popCount(x) == 16);
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}
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{
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var x: i16 = -1;
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try expect(@popCount(x) == 16);
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}
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{
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var x: i8 = -120;
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try expect(@popCount(x) == 2);
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}
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comptime {
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try expect(@popCount(@as(u8, @bitCast(@as(i8, -120)))) == 2);
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}
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}
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test "@popCount vectors" {
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if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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try comptime testPopCountVectors();
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try testPopCountVectors();
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}
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fn testPopCountVectors() !void {
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{
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var x: @Vector(8, u32) = [1]u32{0xffffffff} ** 8;
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const expected = [1]u6{32} ** 8;
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const result: [8]u6 = @popCount(x);
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try expect(std.mem.eql(u6, &expected, &result));
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}
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{
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var x: @Vector(8, i16) = [1]i16{-1} ** 8;
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const expected = [1]u5{16} ** 8;
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const result: [8]u5 = @popCount(x);
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try expect(std.mem.eql(u5, &expected, &result));
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}
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}
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