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| author | Jacob Young <jacobly0@users.noreply.github.com> | 2024-02-16 08:24:26 +0100 |
|---|---|---|
| committer | Jacob Young <jacobly0@users.noreply.github.com> | 2024-02-25 11:22:10 +0100 |
| commit | a76d8ca29b98c4898d1db7db85ee1e6a781b1c0d (patch) | |
| tree | 0b1394a87303546d15e20d522ae6e1a4df95adf0 /src/type.zig | |
| parent | 513c4c145ee163bb178c615a216534ac1f7e9e91 (diff) | |
| download | zig-a76d8ca29b98c4898d1db7db85ee1e6a781b1c0d.tar.gz zig-a76d8ca29b98c4898d1db7db85ee1e6a781b1c0d.zip | |
x86_64: fix alignment of bool vectors
Diffstat (limited to 'src/type.zig')
| -rw-r--r-- | src/type.zig | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/type.zig b/src/type.zig index 7e570e3bdf..a9d1654ba7 100644 --- a/src/type.zig +++ b/src/type.zig @@ -915,15 +915,19 @@ pub const Type = struct { return .{ .scalar = Alignment.fromByteUnits(alignment) }; }, .stage2_x86_64 => { - if (vector_type.child == .bool_type) return .{ .scalar = intAbiAlignment(@intCast(vector_type.len), target) }; + if (vector_type.child == .bool_type) { + if (vector_type.len > 256 and std.Target.x86.featureSetHas(target.cpu.features, .avx512f)) return .{ .scalar = .@"64" }; + if (vector_type.len > 128 and std.Target.x86.featureSetHas(target.cpu.features, .avx2)) return .{ .scalar = .@"32" }; + if (vector_type.len > 64) return .{ .scalar = .@"16" }; + const bytes = std.math.divCeil(u32, vector_type.len, 8) catch unreachable; + const alignment = std.math.ceilPowerOfTwoAssert(u32, bytes); + return .{ .scalar = Alignment.fromByteUnits(alignment) }; + } const elem_bytes: u32 = @intCast((try Type.fromInterned(vector_type.child).abiSizeAdvanced(mod, strat)).scalar); if (elem_bytes == 0) return .{ .scalar = .@"1" }; const bytes = elem_bytes * vector_type.len; if (bytes > 32 and std.Target.x86.featureSetHas(target.cpu.features, .avx512f)) return .{ .scalar = .@"64" }; - if (bytes > 16 and std.Target.x86.featureSetHas( - target.cpu.features, - if (Type.fromInterned(vector_type.child).isRuntimeFloat()) .avx else .avx2, - )) return .{ .scalar = .@"32" }; + if (bytes > 16 and std.Target.x86.featureSetHas(target.cpu.features, .avx)) return .{ .scalar = .@"32" }; return .{ .scalar = .@"16" }; }, } |