More VNInfo tweaking, plus a little progress on intra-block splitting.

llvm-svn: 73750

1 files changed, 7 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/Spiller.h b/llvm/lib/CodeGen/Spiller.h
index 86d7db23c7b..9c3900df0b5 100644
--- a/llvm/lib/CodeGen/Spiller.h
+++ b/llvm/lib/CodeGen/Spiller.h
@@ -13,12 +13,14 @@
 #include <vector>
 
 namespace llvm {
+
   class LiveInterval;
   class LiveIntervals;
   class LiveStacks;
   class MachineFunction;
-  class VirtRegMap;
   class MachineInstr;
+  class VirtRegMap;
+  class VNInfo;
 
   /// Spiller interface.
   ///
@@ -32,6 +34,10 @@ namespace llvm {
     /// implementation selected.
     virtual std::vector<LiveInterval*> spill(LiveInterval *li) = 0;
 
+    /// Intra-block split.
+    virtual std::vector<LiveInterval*> intraBlockSplit(LiveInterval *li,
+                                                       VNInfo *valno) = 0;
+
   };
 
   /// Create and return a spiller object, as specified on the command line.