[llvm-commits] [llvm] r141230 - /llvm/trunk/include/llvm/TableGen/Record.h

[David Greene]

Author: greened
Date: Wed Oct  5 17:42:17 2011
New Revision: 141230

URL: http://llvm.org/viewvc/llvm-project?rev=141230&view=rev
Log:
Add Multidef Data Structures

Add a set of data structures and members analogous to those used for
multiclass defs.  These will represent a new kind of multiclass def: a
multidef.  The idea behind the multidef is to process a list of items
and create a def record for each one inside the enclosing multiclass.
This allows the user to dynamically create a set of defs based on the
contents of a list.

Modified:
    llvm/trunk/include/llvm/TableGen/Record.h

Modified: llvm/trunk/include/llvm/TableGen/Record.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/TableGen/Record.h?rev=141230&r1=141229&r2=141230&view=diff
==============================================================================
--- llvm/trunk/include/llvm/TableGen/Record.h (original)
+++ llvm/trunk/include/llvm/TableGen/Record.h Wed Oct  5 17:42:17 2011
@@ -1568,6 +1568,23 @@
   typedef std::vector<Record*> RecordVector;
   RecordVector DefPrototypes;
 
+  struct MultiDef {
+    Record *Rec;          // The base record for all defs generated.
+                          // This serves as the multiclass def prototype.
+    TypedInit *List;      // A list of values to process.
+                          // Each one generates a new def.
+    IntInit *Start;       // This specified the list index from which to start
+                          // processing.
+    std::string ItemName; // The name of a temporary iterator value to
+                          // track the current list item being processed.
+
+    MultiDef(Record *R, TypedInit *L, IntInit *S, const std::string &I) 
+        : Rec(R), List(L), Start(S), ItemName(I) {};
+  };
+
+  typedef std::vector<MultiDef> MultiDefVector;
+  MultiDefVector MultiDefPrototypes;
+
   void dump() const;
 
   MultiClass(const std::string &Name, SMLoc Loc, RecordKeeper &Records) :