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llvm/cbe: support slice in @prefetch

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Closes #16967
This commit is contained in:
Jacob Young
2023-08-27 17:36:43 -04:00
committed by Andrew Kelley
parent 26b03ca823
commit c429bb5d2f
3 changed files with 21 additions and 15 deletions
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27
test/behavior/prefetch.zig
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@@ -4,27 +4,28 @@ const std = @import("std");
test "@prefetch()" {
if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
var a: u32 = 42;
var a: [2]u32 = .{ 42, 42 };
var a_len = a.len;
@prefetch(&a, .{});
@prefetch(&a, .{ .rw = .read, .locality = 3, .cache = .data });
@prefetch(&a[0], .{ .rw = .read, .locality = 3, .cache = .data });
@prefetch(&a, .{ .rw = .read, .locality = 2, .cache = .data });
@prefetch(&a, .{ .rw = .read, .locality = 1, .cache = .data });
@prefetch(&a, .{ .rw = .read, .locality = 0, .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, .{ .rw = .write, .locality = 3, .cache = .data });
@prefetch(&a[0], .{ .rw = .write, .locality = 3, .cache = .data });
@prefetch(&a, .{ .rw = .write, .locality = 2, .cache = .data });
@prefetch(&a, .{ .rw = .write, .locality = 1, .cache = .data });
@prefetch(&a, .{ .rw = .write, .locality = 0, .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, .{ .rw = .read, .locality = 3, .cache = .instruction });
@prefetch(&a[0], .{ .rw = .read, .locality = 3, .cache = .instruction });
@prefetch(&a, .{ .rw = .read, .locality = 2, .cache = .instruction });
@prefetch(&a, .{ .rw = .read, .locality = 1, .cache = .instruction });
@prefetch(&a, .{ .rw = .read, .locality = 0, .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, .{ .rw = .write, .locality = 3, .cache = .instruction });
@prefetch(&a[0], .{ .rw = .write, .locality = 3, .cache = .instruction });
@prefetch(&a, .{ .rw = .write, .locality = 2, .cache = .instruction });
@prefetch(&a, .{ .rw = .write, .locality = 1, .cache = .instruction });
@prefetch(&a, .{ .rw = .write, .locality = 0, .cache = .instruction });
@prefetch(a[0..].ptr, .{ .rw = .write, .locality = 1, .cache = .instruction });
@prefetch(a[0..a_len], .{ .rw = .write, .locality = 0, .cache = .instruction });
}