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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
+
+namespace llvm {
+
+ class LiveRangeEdit;
+ class MachineFunction;
+ class MachineFunctionPass;
+ class VirtRegMap;
+
+ /// Spiller interface.
+ ///
+ /// Implementations are utility classes which insert spill or remat code on
+ /// demand.
+ class Spiller {
+ virtual void anchor();
+ public:
+ virtual ~Spiller() = 0;
+
+ /// spill - Spill the LRE.getParent() live interval.
+ virtual void spill(LiveRangeEdit &LRE) = 0;
+
+ };
+
+ /// Create and return a spiller object, as specified on the command line.
+ Spiller* createSpiller(MachineFunctionPass &pass,
+ MachineFunction &mf,
+ VirtRegMap &vrm);
+
+ /// Create and return a spiller that will insert spill code directly instead
+ /// of deferring though VirtRegMap.
+ Spiller *createInlineSpiller(MachineFunctionPass &pass,
+ MachineFunction &mf,
+ VirtRegMap &vrm);
+
+}
+
+#endif
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