X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=Changes;h=d71073e23dc1164457d948a4c594c8ca5b470032;hb=b4116a3d7d81f0d3b49929109dcabd99a3efb910;hp=7d74125fe7e7804825679d4ebdd1635d264daf04;hpb=3886d8030a6f7ebc164beafeff9a0818364ef3b9;p=libfirm

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+  12.1.2001 Goetz
+  Added implementation of overwrites stuff.
+
+  11.7.2001 Goetz
+  Implemented stuff to change the type graph.  See
+  typegmod.h and tpop.h for basic documentation of the change.
+  There now exists a type of kind type_id.  If this appears
+  externally this is a bug.
+
+  9.7.2001 Goetz
+  Added some new access routines to types.
+  List of overwritten fields for entities.
+  Removed a bug in irnode.
+
+  4.7.2001 Goetz
+  Added a routine to set the mangled entity name.
+  Added two routines to copy entites.
+
+  3.7.2001 Goetz
+  Entities now have two more flags, for visibility and allocation mode.
+  Types that have a layout have a flag indicating whether the layout is
+  fixed.
+
+  25.6.2001 Goetz
+  We distinguish three kinds of Cond nodes.  These can be distinguished
+  by the mode of the selector operand and an internal flag of type cond_kind.
+  First we distinguish binary Conds and switch Conds.
+  A binary Cond has as selector a boolean value.  Proj(0) projects the control
+  flow for case "False", Proj(1) the control flow for "True".  A binary Cond
+  is recognized by the boolean selector.
+  The switch Cond has as selector an unsigned integer.  It produces as result
+  an n+1 Tuple (cf0, ... , cfn) of control flows.
+  We differ two flavours of this Cond.  The first, the dense Cond, passes
+  control along output i if the selector value is i, 0 <= i <= n.  If the
+  selector value is >n it passes control along output n.
+  The second Cond flavor differes in the treatment of cases not specified in
+  the source program.  It magically knows about the existence of Proj nodes.
+  It only passes control along output i, 0 <= i <= n, if a node Proj(Cond, i)
+  exists.  Else it passes control along output n (even if this Proj does not
+  exist.)  This Cond we call "fragmentary".  There is a special constructor
+  new_defaultProj that automatically sets the flavor.
+  The two switch flavors are distinguished by a flag of type cond_kind.
+  Default flavor is "dense"
+
   20.6.2001 Goetz
   Extended iropt, tv.
   tv now implements Minus, Abs.