X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=Changes;h=34baf009e813aba1d4be78dbd1399cac53544942;hb=898caa0b0671dfe587c9ff4e2bbca6d40a9ee30f;hp=1295701920d31ee8506c04d30e3f768db1ab54df;hpb=1d9626d474dc84ac719f87b73c44d55a8d3174c7;p=libfirm

diff --git a/Changes b/Changes
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+++ b/Changes
@@ -1,3 +1,65 @@
+  29.8.2001 Goetz
+  Added routine to free irgraphs.
+
+  17.7.2001 Goetz
+  Improved add routines to sub, supertype in type.c
+
+  12.r7.2001 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.
+  iropt now optimizes these and Div, Mod, Quot, DivMod.
+  Still missing: Shrs, Rot.
+  tarval_shr somtimes performs shrs, depending on the compiler/system!!
+  If the ArmRoq implementation is faulty there might appear errors.
+
+  20.6.2001 Goetz
+  Changed ircons: If undefined values are used the Phi construction
+  inserts a constant with value tarval_bad.
+
   19.6.2001 Goetz
   Changed array bounds in type.h to ir_node*.  This allows to
   construct array bounds that are complex constant expressions