1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
const builtin = @import("builtin");
const std = @import("std");
test "@prefetch()" {
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
var a: [2]u32 = .{ 42, 42 };
var a_len = a.len;
@prefetch(&a, .{});
@prefetch(&a[0], .{ .rw = .read, .locality = 3, .cache = .data });
@prefetch(&a, .{ .rw = .read, .locality = 2, .cache = .data });
@prefetch(a[0..].ptr, .{ .rw = .read, .locality = 1, .cache = .data });
@prefetch(a[0..a_len], .{ .rw = .read, .locality = 0, .cache = .data });
@prefetch(&a[0], .{ .rw = .write, .locality = 3, .cache = .data });
@prefetch(&a, .{ .rw = .write, .locality = 2, .cache = .data });
@prefetch(a[0..].ptr, .{ .rw = .write, .locality = 1, .cache = .data });
@prefetch(a[0..a_len], .{ .rw = .write, .locality = 0, .cache = .data });
@prefetch(&a[0], .{ .rw = .read, .locality = 3, .cache = .instruction });
@prefetch(&a, .{ .rw = .read, .locality = 2, .cache = .instruction });
@prefetch(a[0..].ptr, .{ .rw = .read, .locality = 1, .cache = .instruction });
@prefetch(a[0..a_len], .{ .rw = .read, .locality = 0, .cache = .instruction });
@prefetch(&a[0], .{ .rw = .write, .locality = 3, .cache = .instruction });
@prefetch(&a, .{ .rw = .write, .locality = 2, .cache = .instruction });
@prefetch(a[0..].ptr, .{ .rw = .write, .locality = 1, .cache = .instruction });
@prefetch(a[0..a_len], .{ .rw = .write, .locality = 0, .cache = .instruction });
}
|
