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Sema: allow mixing array and vector operands

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* Added peer type resolution for arrays and vectors: the vector type is
   selected.
 * Fixed passing the lhs type or rhs type instead of the peer resolved
   type when calling Value methods during analyzeArithmetic handling of
   comptime expressions.
 * `checkVectorizableBinaryOperands` now allows mixing vectors and
   arrays, as long as one of the operands is a vector.

This matches stage1's handling of `^=` but apparently stage1 is
inconsistent and does not handle e.g. `*=`. stage2 now will always allow
mixing vector and array operands for all operations.
This commit is contained in:
Andrew Kelley
2022-03-28 14:17:05 -07:00
parent 691c7cb3cd
commit b6ccde47ad
2 changed files with 61 additions and 14 deletions
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24
test/behavior/vector.zig
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@@ -879,3 +879,27 @@ test "saturating shift-left" {
try S.doTheTest();
comptime try S.doTheTest();
}
test "multiplication-assignment operator with an array operand" {
if (builtin.zig_backend == .stage1) {
// stage1 emits a compile error
return error.SkipZigTest;
}
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
const S = struct {
fn doTheTest() !void {
var x: @Vector(3, i32) = .{ 1, 2, 3 };
x *= [_]i32{ 4, 5, 6 };
try expect(x[0] == 4);
try expect(x[1] == 10);
try expect(x[2] == 18);
}
};
try S.doTheTest();
comptime try S.doTheTest();
}