mirror of
https://github.com/ziglang/zig.git
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32 lines
1.4 KiB
Zig
32 lines
1.4 KiB
Zig
const builtin = @import("builtin");
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const std = @import("std");
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test "@prefetch()" {
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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var a: [2]u32 = .{ 42, 42 };
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var a_len = a.len;
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@prefetch(&a, .{});
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@prefetch(&a[0], .{ .rw = .read, .locality = 3, .cache = .data });
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@prefetch(&a, .{ .rw = .read, .locality = 2, .cache = .data });
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@prefetch(a[0..].ptr, .{ .rw = .read, .locality = 1, .cache = .data });
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@prefetch(a[0..a_len], .{ .rw = .read, .locality = 0, .cache = .data });
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@prefetch(&a[0], .{ .rw = .write, .locality = 3, .cache = .data });
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@prefetch(&a, .{ .rw = .write, .locality = 2, .cache = .data });
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@prefetch(a[0..].ptr, .{ .rw = .write, .locality = 1, .cache = .data });
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@prefetch(a[0..a_len], .{ .rw = .write, .locality = 0, .cache = .data });
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@prefetch(&a[0], .{ .rw = .read, .locality = 3, .cache = .instruction });
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@prefetch(&a, .{ .rw = .read, .locality = 2, .cache = .instruction });
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@prefetch(a[0..].ptr, .{ .rw = .read, .locality = 1, .cache = .instruction });
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@prefetch(a[0..a_len], .{ .rw = .read, .locality = 0, .cache = .instruction });
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@prefetch(&a[0], .{ .rw = .write, .locality = 3, .cache = .instruction });
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@prefetch(&a, .{ .rw = .write, .locality = 2, .cache = .instruction });
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@prefetch(a[0..].ptr, .{ .rw = .write, .locality = 1, .cache = .instruction });
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@prefetch(a[0..a_len], .{ .rw = .write, .locality = 0, .cache = .instruction });
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}
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