renamed is_subclass* to is_SubClass*, is_superclass* to is_SuperClass* as is newer libfirm

reorganized calling_convention bits

[r7142]

ir/tr/type.c

@@ -636,7 +636,7 @@ int smaller_type (type *st, type *lt) {
 
   switch(get_type_tpop_code(st)) {
   case tpo_class:       {
-    return is_subclass_of(st, lt);
+    return is_SubClass_of(st, lt);
   } break;
   case tpo_struct:      {
     if (get_struct_n_members(st) != get_struct_n_members(lt)) return 0;
@@ -900,7 +900,7 @@ void    add_class_supertype   (type *clss, type *supertype) {
   assert(clss && (clss->type_op == type_class));
   assert(supertype && (supertype -> type_op == type_class));
   ARR_APP1 (type *, clss->attr.ca.supertypes, supertype);
-  for (i = 0; i < get_class_n_subtypes(supertype); i++)
+  for (i = get_class_n_subtypes(supertype) - 1; i >= 0; --i)
     if (get_class_subtype(supertype, i) == clss)
       /* Class already registered */
       return;
@@ -1345,16 +1345,20 @@ void (set_method_calling_convention)(type *method, unsigned cc_mask) {
   _set_method_calling_convention(method, cc_mask);
 }
 
-/* Returns the number of register parameters in a fastcall. 0 means default. */
-unsigned get_method_fastcall_n_regs(type *method) {
-  assert(IS_FASTCALL(get_method_calling_convention(method)) && "not fastcall");
-  return method->attr.ma.irg_calling_conv >> 8;
+/* Returns the number of registers parameters, 0 means default. */
+unsigned get_method_n_regparams(type *method) {
+  unsigned cc = get_method_calling_convention(method);
+  assert(IS_FASTCALL(cc));
+
+  return cc & ~cc_bits;
 }
 
-/* Sets the number of register parameters in a fastcall. 0 means default. */
-void set_method_fastcall_n_regs(type *method, unsigned n_regs) {
-  assert(IS_FASTCALL(get_method_calling_convention(method)) && "not fastcall");
-  method->attr.ma.irg_calling_conv = n_regs << 8 | (method->attr.ma.irg_calling_conv & 0xFF);
+/* Sets the number of registers parameters, 0 means default. */
+void set_method_n_regparams(type *method, unsigned n_regs) {
+  unsigned cc = get_method_calling_convention(method);
+  assert(IS_FASTCALL(cc));
+
+  set_method_calling_convention(method, (cc & cc_bits) | (n_regs & ~cc_bits));
 }
 
 /* typecheck */

ir/tr/type.h

@@ -799,25 +799,27 @@ void set_method_additional_properties(type *method, unsigned property_mask);
 void set_method_additional_property(type *method, mtp_additional_property flag);
 
 /**
- * calling conventions: the lower 8 bits are flags, the upper 24
- * are the number of arguments transmitted in registers.
+ * calling conventions: lower 24 bits are the number of register parameters,
+ * upper 8 encode the calling conventions
  */
 typedef enum {
-  cc_reg_param        = 0x00000001, /**< Transmit parameters in registers, else the stack is used.
+  cc_reg_param        = 0x01000000, /**< Transmit parameters in registers, else the stack is used.
                                          This flag may be set as default on some architectures. */
-  cc_last_on_top      = 0x00000002, /**< The last non-register parameter is transmitted on top of
-                                         the stack. If this flag is not set, the first
-                                         non-register parameter is used (cdecl/stdcall convention) */
-  cc_callee_clear_stk = 0x00000004, /**< The callee clears the stack. This forbids variadic
+  cc_last_on_top      = 0x02000000, /**< The last non-register parameter is transmitted on top of
+                                             the stack. This is equivalent to the stdcall or pascal
+                                             calling convention. If this flag is not set, the first
+                                             non-register parameter is used (cdecl calling convention) */
+  cc_callee_clear_stk = 0x04000000, /**< The callee clears the stack. This forbids variadic
                                          function calls (stdcall). */
-  cc_this_call        = 0x00000008, /**< The first parameter is a this pointer and is transmitted
+  cc_this_call        = 0x08000000, /**< The first parameter is a this pointer and is transmitted
                                          in a special way. */
 
-  /* for easier access */
+  /* some ofter used cases */
   cc_cdecl_set        = 0,                                /**< cdecl calling convention */
   cc_stdcall_set      = cc_callee_clear_stk,              /**< stdcall calling convention */
   cc_fastcall_set     = cc_reg_param|cc_callee_clear_stk, /**< fastcall calling convention */
-  cc_defmask          = cc_reg_param|cc_last_on_top|cc_callee_clear_stk
+
+  cc_bits             = 0xFF000000                          /**< the calling convention bits */
 } calling_convention;
 
 /** return the default calling convention for method types */
@@ -826,32 +828,32 @@ unsigned get_default_cc_mask(void);
 /**
  * check for the CDECL calling convention
  */
-#define IS_CDECL(cc_mask)     (((cc_mask) & cc_defmask) == cc_cdecl_set)
+#define IS_CDECL(cc_mask)     (((cc_mask) & cc_bits) == cc_cdecl_set)
 
 /**
  * check for the STDCALL calling convention
  */
-#define IS_STDCALL(cc_mask)   (((cc_mask) & cc_defmask) == cc_stdcall_set)
+#define IS_STDCALL(cc_mask)   (((cc_mask) & cc_bits) == cc_stdcall_set)
 
 /**
  * check for the FASTCALL calling convention
  */
-#define IS_FASTCALL(cc_mask)  (((cc_mask) & cc_defmask) == cc_fastcall_set)
+#define IS_FASTCALL(cc_mask)  (((cc_mask) & cc_bits) == cc_fastcall_set)
 
 /**
- * add the CDECL convention bits
+ * set the CDECL convention bits
  */
-#define SET_CDECL(cc_mask)    (((cc_mask) & ~cc_defmask) | cc_cdecl_set)
+#define SET_CDECL(cc_mask)    (((cc_mask) & ~cc_bits) | cc_cdecl_set)
 
 /**
- * add the STDCALL convention bits
+ * set the STDCALL convention bits
  */
-#define SET_STDCALL(cc_mask)  (((cc_mask) & ~cc_defmask) | cc_stdcall_set)
+#define SET_STDCALL(cc_mask)  (((cc_mask) & ~cc_bits) | cc_stdcall_set)
 
 /**
- * add the FASTCALL convention bits
+ * set the FASTCALL convention bits
  */
-#define SET_FASTCALL(cc_mask) (((cc_mask) & ~cc_defmask) | cc_fastcall_set)
+#define SET_FASTCALL(cc_mask) (((cc_mask) & ~cc_bits) | cc_fastcall_set)
 
 /** Returns the calling convention of an entities graph. */
 unsigned get_method_calling_convention(const type *method);
@@ -859,11 +861,11 @@ unsigned get_method_calling_convention(const type *method);
 /** Sets the calling convention of an entities graph. */
 void set_method_calling_convention(type *method, unsigned cc_mask);
 
-/** Returns the number of register parameters in a fastcall. 0 means default. */
-unsigned get_method_fastcall_n_regs(type *method);
+/** Returns the number of registers parameters, 0 means default. */
+unsigned get_method_n_regparams(type *method);
 
-/** Sets the number of register parameters in a fastcall. 0 means default. */
-void set_method_fastcall_n_regs(type *method, unsigned n_regs);
+/** Sets the number of registers parameters, 0 means default. */
+void set_method_n_regparams(type *method, unsigned n_regs);
 
 /** Returns true if a type is a method type. */
 int   is_Method_type     (const type *method);