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simd [?] type fix; count recovery

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kalsprite
2026-08-15 22:23:15 -07:00
parent 69fb453e51
commit e53fc6a879
3 changed files with 213 additions and 3 deletions
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34
src/check_expr.cpp
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@@ -10688,7 +10688,25 @@ gb_internal ExprKind check_compound_literal(CheckerContext *c, Operand *o, Ast *
if (count != nullptr) {
if (count->kind == Ast_UnaryExpr &&
count->UnaryExpr.op.kind == Token_Question) {
type = alloc_type_array(check_type(c, type_expr->ArrayType.elem), -1);
Type *elem = check_type(c, type_expr->ArrayType.elem);
bool is_simd_tag = false;
if (type_expr->ArrayType.tag != nullptr) {
GB_ASSERT(type_expr->ArrayType.tag->kind == Ast_BasicDirective);
is_simd_tag = type_expr->ArrayType.tag->BasicDirective.name.string == "simd";
}
if (is_simd_tag) {
if (!is_type_valid_vector_elem(elem) && !is_type_polymorphic(elem)) {
gbString str = type_to_string(elem);
error(type_expr->ArrayType.elem, "Invalid element type for #simd, expected an integer, float, boolean, or 'rawptr' with no specific endianness, got '%s'", str);
gb_string_free(str);
type = alloc_type_array(elem, -1);
} else {
type = alloc_type_simd_vector(-1, elem);
}
} else {
type = alloc_type_array(elem, -1);
}
is_to_be_determined_array_count = true;
}
} else {
@@ -10912,7 +10930,9 @@ gb_internal ExprKind check_compound_literal(CheckerContext *c, Operand *o, Ast *
} else if (t->kind == Type_SimdVector) {
elem_type = t->SimdVector.elem;
context_name = str_lit("simd vector literal");
max_type_count = t->SimdVector.count;
if (!is_to_be_determined_array_count) {
max_type_count = t->SimdVector.count;
}
} else if (t->kind == Type_Matrix) {
elem_type = t->Matrix.elem;
context_name = str_lit("matrix literal");
@@ -11088,6 +11108,16 @@ gb_internal ExprKind check_compound_literal(CheckerContext *c, Operand *o, Ast *
error(node, "Expected %lld values for this array literal, got %lld", cast(long long)t->Array.count, cast(long long)max);
}
}
} else if (t->kind == Type_SimdVector) {
// the length laws cannot be applied until the literal has supplied the count
if (is_to_be_determined_array_count) {
t->SimdVector.count = max;
if (max < 1 || !is_power_of_two(max)) {
error(node, "Invalid length for #simd, expected a power of two length, got '%lld'", cast(long long)max);
} else if (max > SIMD_ELEMENT_COUNT_MAX) {
error(node, "#simd support a maximum element count of %d, got %lld", SIMD_ELEMENT_COUNT_MAX, cast(long long)max);
}
}
} else if (t->kind == Type_Struct) {
GB_ASSERT(t->Struct.soa_kind == StructSoa_Fixed);
if (is_to_be_determined_array_count) {