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Improve basic escape analysis

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This commit is contained in:
gingerBill
2022-09-02 16:23:16 +01:00
parent 99e5a14703
commit c2809c2948
1 changed files with 4 additions and 7 deletions
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src/check_stmt.cpp
+4 -7
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@@ -1400,7 +1400,7 @@ bool check_expr_is_stack_variable(Ast *expr) {
expr = unparen_expr(expr); expr = unparen_expr(expr);
Entity *e = entity_of_node(expr); Entity *e = entity_of_node(expr);
if (e && e->kind == Entity_Variable) { if (e && e->kind == Entity_Variable) {
if (e->flags & (EntityFlag_Static|EntityFlag_Using)) { if (e->flags & (EntityFlag_Static|EntityFlag_Using|EntityFlag_ImplicitReference|EntityFlag_ForValue)) {
// okay // okay
} else if (e->Variable.thread_local_model.len != 0) { } else if (e->Variable.thread_local_model.len != 0) {
// okay // okay
@@ -1941,13 +1941,10 @@ void check_stmt_internal(CheckerContext *ctx, Ast *node, u32 flags) {
} }
if (found == nullptr) { if (found == nullptr) {
entity = alloc_entity_variable(ctx->scope, token, type, EntityState_Resolved); entity = alloc_entity_variable(ctx->scope, token, type, EntityState_Resolved);
entity->flags |= EntityFlag_ForValue;
entity->flags |= EntityFlag_Value; entity->flags |= EntityFlag_Value;
if (i == addressable_index) { if (i == addressable_index && use_by_reference_for_value) {
if (use_by_reference_for_value) { entity->flags &= ~EntityFlag_Value;
entity->flags &= ~EntityFlag_Value;
} else {
entity->flags |= EntityFlag_ForValue;
}
} }
if (is_soa) { if (is_soa) {
if (i == 0) { if (i == 0) {