Adapted cparser to CopyB lowering changes.
[cparser] / parser.c
index 082a6d0..09930b0 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -853,22 +853,11 @@ static void label_pop_to(size_t new_top)
        stack_pop_to(&label_stack, new_top);
 }
 
-static int get_akind_rank(atomic_type_kind_t akind)
+static atomic_type_kind_t get_akind(const type_t *type)
 {
-       return (int) akind;
-}
-
-/**
- * Return the type rank for an atomic type.
- */
-static int get_rank(const type_t *type)
-{
-       assert(!is_typeref(type));
-       if (type->kind == TYPE_ENUM)
-               return get_akind_rank(type->enumt.akind);
-
-       assert(type->kind == TYPE_ATOMIC);
-       return get_akind_rank(type->atomic.akind);
+       assert(type->kind == TYPE_ATOMIC || type->kind == TYPE_COMPLEX
+              || type->kind == TYPE_IMAGINARY || type->kind == TYPE_ENUM);
+       return type->atomic.akind;
 }
 
 /**
@@ -879,7 +868,7 @@ static int get_rank(const type_t *type)
  */
 static type_t *promote_integer(type_t *type)
 {
-       if (get_rank(type) < get_akind_rank(ATOMIC_TYPE_INT))
+       if (get_akind_rank(get_akind(type)) < get_akind_rank(ATOMIC_TYPE_INT))
                type = type_int;
 
        return type;
@@ -1360,19 +1349,17 @@ static entity_t *determine_lhs_ent(expression_t *const expr,
                                ent     = determine_lhs_ent(ref, lhs_ent);
                                lhs_ent = ent;
                        } else {
-                               mark_vars_read(expr->select.compound, lhs_ent);
+                               mark_vars_read(ref, lhs_ent);
                        }
                        mark_vars_read(expr->array_access.index, lhs_ent);
                        return ent;
                }
 
                case EXPR_SELECT: {
-                       if (is_type_compound(skip_typeref(expr->base.type))) {
+                       mark_vars_read(expr->select.compound, lhs_ent);
+                       if (is_type_compound(skip_typeref(expr->base.type)))
                                return determine_lhs_ent(expr->select.compound, lhs_ent);
-                       } else {
-                               mark_vars_read(expr->select.compound, lhs_ent);
-                               return NULL;
-                       }
+                       return NULL;
                }
 
                case EXPR_UNARY_DEREFERENCE: {
@@ -1449,10 +1436,13 @@ static void mark_vars_read(expression_t *const expr, entity_t *lhs_ent)
                        return;
 
                case EXPR_ARRAY_ACCESS: {
+                       mark_vars_read(expr->array_access.index, lhs_ent);
                        expression_t *const ref = expr->array_access.array_ref;
+                       if (!is_type_array(skip_typeref(revert_automatic_type_conversion(ref)))) {
+                               if (lhs_ent == ENT_ANY)
+                                       lhs_ent = NULL;
+                       }
                        mark_vars_read(ref, lhs_ent);
-                       lhs_ent = determine_lhs_ent(ref, lhs_ent);
-                       mark_vars_read(expr->array_access.index, lhs_ent);
                        return;
                }
 
@@ -2517,9 +2507,9 @@ static type_t *parse_enum_specifier(void)
                entity->base.parent_scope    = current_scope;
        }
 
-       type_t *const type = allocate_type_zero(TYPE_ENUM);
-       type->enumt.enume  = &entity->enume;
-       type->enumt.akind  = ATOMIC_TYPE_INT;
+       type_t *const type     = allocate_type_zero(TYPE_ENUM);
+       type->enumt.enume      = &entity->enume;
+       type->enumt.base.akind = ATOMIC_TYPE_INT;
 
        if (token.kind == '{') {
                if (symbol != NULL) {
@@ -3145,15 +3135,13 @@ warn_about_long_long:
                }
 
                if (type_specifiers & SPECIFIER_COMPLEX) {
-                       type                = allocate_type_zero(TYPE_COMPLEX);
-                       type->complex.akind = atomic_type;
+                       type = allocate_type_zero(TYPE_COMPLEX);
                } else if (type_specifiers & SPECIFIER_IMAGINARY) {
-                       type                  = allocate_type_zero(TYPE_IMAGINARY);
-                       type->imaginary.akind = atomic_type;
+                       type = allocate_type_zero(TYPE_IMAGINARY);
                } else {
-                       type                 = allocate_type_zero(TYPE_ATOMIC);
-                       type->atomic.akind   = atomic_type;
+                       type = allocate_type_zero(TYPE_ATOMIC);
                }
+               type->atomic.akind = atomic_type;
                newtype = true;
        } else if (type_specifiers != 0) {
                errorf(&specifiers->source_position, "multiple datatypes in declaration");
@@ -6199,7 +6187,8 @@ static entity_t *parse_qualified_identifier(void)
        if (entity == NULL) {
                if (!strict_mode && token.kind == '(') {
                        /* an implicitly declared function */
-                       warningf(WARN_IMPLICIT_FUNCTION_DECLARATION, &pos, "implicit declaration of function '%Y'", symbol);
+                       warningf(WARN_IMPLICIT_FUNCTION_DECLARATION, &pos,
+                                "implicit declaration of function '%Y'", symbol);
                        entity = create_implicit_function(symbol, &pos);
                } else {
                        errorf(&pos, "unknown identifier '%Y' found.", symbol);
@@ -7205,32 +7194,25 @@ static void check_call_argument(type_t          *expected_type,
 /**
  * Handle the semantic restrictions of builtin calls
  */
-static void handle_builtin_argument_restrictions(call_expression_t *call) {
-       switch (call->function->reference.entity->function.btk) {
-               case bk_gnu_builtin_return_address:
-               case bk_gnu_builtin_frame_address: {
+static void handle_builtin_argument_restrictions(call_expression_t *call)
+{
+       entity_t *entity = call->function->reference.entity;
+       switch (entity->function.btk) {
+       case BUILTIN_FIRM:
+               switch (entity->function.b.firm_builtin_kind) {
+               case ir_bk_return_address:
+               case ir_bk_frame_address: {
                        /* argument must be constant */
                        call_argument_t *argument = call->arguments;
 
                        if (is_constant_expression(argument->expression) == EXPR_CLASS_VARIABLE) {
                                errorf(&call->base.source_position,
-                                      "argument of '%Y' must be a constant expression",
-                                      call->function->reference.entity->base.symbol);
-                       }
-                       break;
-               }
-               case bk_gnu_builtin_object_size:
-                       if (call->arguments == NULL)
-                               break;
-
-                       call_argument_t *arg = call->arguments->next;
-                       if (arg != NULL && is_constant_expression(arg->expression) == EXPR_CLASS_VARIABLE) {
-                               errorf(&call->base.source_position,
-                                          "second argument of '%Y' must be a constant expression",
+                                          "argument of '%Y' must be a constant expression",
                                           call->function->reference.entity->base.symbol);
                        }
                        break;
-               case bk_gnu_builtin_prefetch:
+               }
+               case ir_bk_prefetch:
                        /* second and third argument must be constant if existent */
                        if (call->arguments == NULL)
                                break;
@@ -7240,22 +7222,37 @@ static void handle_builtin_argument_restrictions(call_expression_t *call) {
                        if (rw != NULL) {
                                if (is_constant_expression(rw->expression) == EXPR_CLASS_VARIABLE) {
                                        errorf(&call->base.source_position,
-                                              "second argument of '%Y' must be a constant expression",
-                                              call->function->reference.entity->base.symbol);
+                                                  "second argument of '%Y' must be a constant expression",
+                                                  call->function->reference.entity->base.symbol);
                                }
                                locality = rw->next;
                        }
                        if (locality != NULL) {
                                if (is_constant_expression(locality->expression) == EXPR_CLASS_VARIABLE) {
                                        errorf(&call->base.source_position,
-                                              "third argument of '%Y' must be a constant expression",
-                                              call->function->reference.entity->base.symbol);
+                                                  "third argument of '%Y' must be a constant expression",
+                                                  call->function->reference.entity->base.symbol);
                                }
                                locality = rw->next;
                        }
                        break;
                default:
                        break;
+               }
+
+       case BUILTIN_OBJECT_SIZE:
+               if (call->arguments == NULL)
+                       break;
+
+               call_argument_t *arg = call->arguments->next;
+               if (arg != NULL && is_constant_expression(arg->expression) == EXPR_CLASS_VARIABLE) {
+                       errorf(&call->base.source_position,
+                                  "second argument of '%Y' must be a constant expression",
+                                  call->function->reference.entity->base.symbol);
+               }
+               break;
+       default:
+               break;
        }
 }
 
@@ -7351,7 +7348,7 @@ static expression_t *parse_call_expression(expression_t *expression)
        if (expression->kind == EXPR_REFERENCE) {
                reference_expression_t *reference = &expression->reference;
                if (reference->entity->kind == ENTITY_FUNCTION &&
-                   reference->entity->function.btk != bk_none)
+                   reference->entity->function.btk != BUILTIN_NONE)
                        handle_builtin_argument_restrictions(call);
        }
 
@@ -7729,6 +7726,13 @@ static void semantic_incdec(unary_expression_t *expression)
        expression->base.type = orig_type;
 }
 
+static void promote_unary_int_expr(unary_expression_t *const expr, type_t *const type)
+{
+       type_t *const res_type = promote_integer(type);
+       expr->base.type = res_type;
+       expr->value     = create_implicit_cast(expr->value, res_type);
+}
+
 static void semantic_unexpr_arithmetic(unary_expression_t *expression)
 {
        type_t *const orig_type = expression->value->base.type;
@@ -7740,9 +7744,11 @@ static void semantic_unexpr_arithmetic(unary_expression_t *expression)
                                "operation needs an arithmetic type");
                }
                return;
+       } else if (is_type_integer(type)) {
+               promote_unary_int_expr(expression, type);
+       } else {
+               expression->base.type = orig_type;
        }
-
-       expression->base.type = orig_type;
 }
 
 static void semantic_unexpr_plus(unary_expression_t *expression)
@@ -7771,7 +7777,7 @@ static void semantic_unexpr_integer(unary_expression_t *expression)
                return;
        }
 
-       expression->base.type = orig_type;
+       promote_unary_int_expr(expression, type);
 }
 
 static void semantic_dereference(unary_expression_t *expression)
@@ -7921,45 +7927,44 @@ static type_t *semantic_arithmetic(type_t *type_left, type_t *type_right)
        if (type_left == type_right)
                return type_left;
 
-       bool const signed_left  = is_type_signed(type_left);
-       bool const signed_right = is_type_signed(type_right);
-       int const  rank_left    = get_rank(type_left);
-       int const  rank_right   = get_rank(type_right);
+       bool     const signed_left  = is_type_signed(type_left);
+       bool     const signed_right = is_type_signed(type_right);
+       unsigned const rank_left    = get_akind_rank(get_akind(type_left));
+       unsigned const rank_right   = get_akind_rank(get_akind(type_right));
 
        if (signed_left == signed_right)
                return rank_left >= rank_right ? type_left : type_right;
 
-       int     s_rank;
-       int     u_rank;
+       unsigned           s_rank;
+       unsigned           u_rank;
+       atomic_type_kind_t s_akind;
+       atomic_type_kind_t u_akind;
        type_t *s_type;
        type_t *u_type;
        if (signed_left) {
-               s_rank = rank_left;
                s_type = type_left;
-               u_rank = rank_right;
                u_type = type_right;
        } else {
-               s_rank = rank_right;
                s_type = type_right;
-               u_rank = rank_left;
                u_type = type_left;
        }
+       s_akind = get_akind(s_type);
+       u_akind = get_akind(u_type);
+       s_rank  = get_akind_rank(s_akind);
+       u_rank  = get_akind_rank(u_akind);
 
        if (u_rank >= s_rank)
                return u_type;
 
-       /* casting rank to atomic_type_kind is a bit hacky, but makes things
-        * easier here... */
-       if (get_atomic_type_size((atomic_type_kind_t) s_rank)
-                       > get_atomic_type_size((atomic_type_kind_t) u_rank))
+       if (get_atomic_type_size(s_akind) > get_atomic_type_size(u_akind))
                return s_type;
 
-       switch (s_rank) {
-               case ATOMIC_TYPE_INT:      return type_unsigned_int;
-               case ATOMIC_TYPE_LONG:     return type_unsigned_long;
-               case ATOMIC_TYPE_LONGLONG: return type_unsigned_long_long;
+       switch (s_akind) {
+       case ATOMIC_TYPE_INT:      return type_unsigned_int;
+       case ATOMIC_TYPE_LONG:     return type_unsigned_long;
+       case ATOMIC_TYPE_LONGLONG: return type_unsigned_long_long;
 
-               default: panic("invalid atomic type");
+       default: panic("invalid atomic type");
        }
 }
 
@@ -9354,7 +9359,7 @@ static statement_t *parse_switch(void)
        type_t       *      type = skip_typeref(expr->base.type);
        if (is_type_integer(type)) {
                type = promote_integer(type);
-               if (get_rank(type) >= get_akind_rank(ATOMIC_TYPE_LONG)) {
+               if (get_akind_rank(get_akind(type)) >= get_akind_rank(ATOMIC_TYPE_LONG)) {
                        warningf(WARN_TRADITIONAL, &expr->base.source_position, "'%T' switch expression not converted to '%T' in ISO C", type, type_int);
                }
        } else if (is_type_valid(type)) {