Dimitry Andric 0b57cec536 Move all sources from the llvm project into contrib/llvm-project.
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.
2019-12-20 19:53:05 +00:00

44 lines
1.2 KiB
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//===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_CODEGEN_SPILLER_H
#define LLVM_LIB_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;
virtual void postOptimization() {}
};
/// Create and return a spiller that will insert spill code directly instead
/// of deferring though VirtRegMap.
Spiller *createInlineSpiller(MachineFunctionPass &pass,
MachineFunction &mf,
VirtRegMap &vrm);
} // end namespace llvm
#endif // LLVM_LIB_CODEGEN_SPILLER_H