1 files changed, 37 insertions, 0 deletions
diff --git a/lib/CodeGen/Spiller.h b/lib/CodeGen/Spiller.h
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+++ b/lib/CodeGen/Spiller.h
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+//===-- llvm/CodeGen/Spiller.h - Spiller -*- C++ -*------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_SPILLER_H
+#define LLVM_CODEGEN_SPILLER_H
+
+#include <vector>
+
+namespace llvm {
+  class LiveInterval;
+  class LiveIntervals;
+  class LiveStacks;
+  class MachineFunction;
+  class VirtRegMap;
+
+  /// Spiller interface.
+  ///
+  /// Implementations are utility classes which insert spill or remat code on
+  /// demand.
+  class Spiller {
+  public:
+    virtual ~Spiller() = 0;
+    virtual std::vector<LiveInterval*> spill(LiveInterval *li) = 0;
+  };
+
+  /// Create and return a spiller object, as specified on the command line.
+  Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li,
+                         LiveStacks *ls, VirtRegMap *vrm);
+}
+
+#endif