*** empty log message ***

[r21]

Changes

+  4.7.2000 Goetz
+  Commented a whole bunch of stuff, e.g. in ircons.h  (Procedure to construct)
+  We should change the naming of the Block constructor.
+
+  4.7.2000 Goetz
+  Removed acces routines to attr. "closed" of Block.
+
+  4.7.2000 Goetz
+  Removed second implementation of new_ir_node from ircons and some comments
+  concerned with the now resolved cyclic dependency.
+  Fixed some bugs in irgopt so that the compilation goes through.
+
   31.5.2000 Chris
-  Removed some files from the archive, after dependences and usage are checked:
+  Removed some files from the archive, after dependencies and usage are
+  checked:
   - 'ir/common/strerror.c'
   was nowhere used;
   - 'ir/ident/xx_ident.h'
@@ -17,7 +30,29 @@
   Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
   afterwards some recursive includes, so libfirm works again.
 
-*** Goetz has to complete this lines - several changes are not annotated yet! ***
+  2+3.2000 Goetz
+  Did a lot of changes, which I never commented until now (4.7.00).
+
+  * Added new result to Start node: Pointer to global data segment.
+  * Extended Semantics of SymConst node to represent information for the
+    linker.
+  * Added arithmeitc nodes (Shrs, Minus ...)
+
+  Rearranged the directory structure and adjusted the makefiles.
+  The directories contain:
+  ir:       everything for the intermediate representation (better: src?)
+    /ir:    the ir itself, and standard optimizations.
+    /tv:    the target value module
+    /tr:    the type and entity representation
+    /adt:   abstract data types
+    /common:  stuff needed by all other dirs
+    /debug: debugging Unterstuetzung
+    /ident:
+  include:  external files needen as includes
+  testprograms: examples to test the lib.
+
+  The makefiles generate files with extension .d that contain the dependencies
+  between the files.
 
   15.2.2000 Goetz
   Added access routine to attribute link of irnode in irnode.ch.
@@ -34,7 +69,7 @@
 
   10.2.2000 Goetz
   Changed tests from comparing enums to comparing pointers. This is more
-  efficient and reads better.  e.g., instead get_irn_opcode == irm_And
+  efficient (is it?) and reads better.  e.g., instead get_irn_opcode == irm_And
   now get_irn_op == op_And
 
   10.2.2000 Goetz

ir/ir/irnode.h

@@ -58,7 +58,8 @@ enum {
   pns_args              /* Projection on all arguments */
 } pns_number;
 
-/* ir node attributes */
+/** ir node attributes **/
+/* Block attributes */
 typedef struct {
   unsigned long block_visit;  /* for the walker that walks over all blocks. */
   /* Attributes private to construction: */
@@ -66,6 +67,10 @@ typedef struct {
   struct ir_node **graph_arr; /* array to store all parameters */
 } block_attr;
 
+/* SymConst attributes */
+/*   This enum names the three different kinds of symbolic Constants
+     represented by SymConst.  The content of the attribute type_or_id
+     depends on this tag. */
 typedef enum {
   type_tag,          /* The SymConst is a type tag for the given type.
 			Type_or_id is type */
@@ -75,6 +80,7 @@ typedef enum {
 			by the linker. Type_or_id is ident */
 } symconst_kind;
 
+/*   This union contains the symbolic information represented by the node */
 typedef union {
   type *typ;
   ident *ptrinfo;
@@ -85,6 +91,7 @@ typedef struct {
   symconst_kind num;
 } symconst_attr;
 
+/* Sel attributes */
 typedef enum {
   static_linkage,       /* entity is used internal and not visible out of this
 			   file/class. */
@@ -97,9 +104,10 @@ typedef struct {
   linkage_type *ltyp;   /* linkage type of the entity */
 } sel_attr;
 
+/* Alloc attributes */
 typedef enum {
   stack_alloc,          /* Alloc allocates the object on the stack. */
-  heap_alloc            /* lloc allocates the object on the heap. */
+  heap_alloc            /* Alloc allocates the object on the heap. */
 } where_alloc;
 
 typedef struct {
@@ -141,8 +149,8 @@ struct ir_node {
 			      during optimization to link to nodes that
 			      shall replace a node. */
   attr attr;               /* attribute of this node. Depends on opcode. */
-                           /* Must be last attribute of struct ir_node. */
-} ;
+                           /* Must be last field of struct ir_node. */
+};
 
 
 /* The typedefiniton of ir_node is also in irgraph.h to resolve
@@ -217,8 +225,6 @@ inline ir_node *get_Block_cfgpred (ir_node *node, int pos);
 inline void     set_Block_cfgpred (ir_node *node, int pos, ir_node *pred);
 inline bool     get_Block_matured (ir_node *node);
 inline void     set_Block_matured (ir_node *node, bool matured);
-inline bool     get_Block_closed (ir_node *node);
-inline void     set_Block_closed (ir_node *node, bool closed);
 inline unsigned long get_Block_block_visit (ir_node *node);
 inline void     set_Block_block_visit (ir_node *node, unsigned long visit);
 inline ir_node *get_Block_graph_arr (ir_node *node, int pos);
@@ -454,7 +460,7 @@ inline int      is_no_Block (ir_node *node);
    Start, End, Jmp, Cond, Return, Raise */
 int is_cfop(ir_node *node);
 /* Returns true if the operation can change the control flow because
-   of a exception. */
+   of an exception. */
 int is_fragile_op(ir_node *node);
 
 # endif /* _IRNODE_H_ */