LLVM 20.0.0git
Spiller.h
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1//===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_CODEGEN_SPILLER_H
10#define LLVM_CODEGEN_SPILLER_H
11
12namespace llvm {
13
14class LiveRangeEdit;
15class MachineFunction;
16class MachineFunctionPass;
17class VirtRegMap;
18class VirtRegAuxInfo;
19
20/// Spiller interface.
21///
22/// Implementations are utility classes which insert spill or remat code on
23/// demand.
24class Spiller {
25 virtual void anchor();
26
27public:
28 virtual ~Spiller() = 0;
29
30 /// spill - Spill the LRE.getParent() live interval.
31 virtual void spill(LiveRangeEdit &LRE) = 0;
32
33 virtual void postOptimization() {}
34};
35
36/// Create and return a spiller that will insert spill code directly instead
37/// of deferring though VirtRegMap.
38Spiller *createInlineSpiller(MachineFunctionPass &Pass, MachineFunction &MF,
39 VirtRegMap &VRM, VirtRegAuxInfo &VRAI);
40
41} // end namespace llvm
42
43#endif // LLVM_CODEGEN_SPILLER_H
Spiller interface.
Definition: Spiller.h:24
virtual void spill(LiveRangeEdit &LRE)=0
spill - Spill the LRE.getParent() live interval.
virtual ~Spiller()=0
virtual void postOptimization()
Definition: Spiller.h:33
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
Spiller * createInlineSpiller(MachineFunctionPass &Pass, MachineFunction &MF, VirtRegMap &VRM, VirtRegAuxInfo &VRAI)
Create and return a spiller that will insert spill code directly instead of deferring though VirtRegM...