mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
dd4f4eac1d
VirtRegAuxInfo is an extensibility point, so the register allocator's decision on which implementation to use should be communicated to the other users - namely, LiveRangeEdit. Differential Revision: https://reviews.llvm.org/D96898
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
//===- 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_CODEGEN_SPILLER_H
|
|
#define LLVM_CODEGEN_SPILLER_H
|
|
|
|
namespace llvm {
|
|
|
|
class LiveRangeEdit;
|
|
class MachineFunction;
|
|
class MachineFunctionPass;
|
|
class VirtRegMap;
|
|
class VirtRegAuxInfo;
|
|
|
|
/// 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, VirtRegAuxInfo &VRAI);
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_CODEGEN_SPILLER_H
|