1//===- InlineSpiller.h - Inline spiller helpers -----------------*- 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_LIB_CODEGEN_INLINESPILLER_H
10#define LLVM_LIB_CODEGEN_INLINESPILLER_H
11
12#include "llvm/CodeGen/Register.h"
13
14namespace llvm {
15
16class MachineInstr;
17
18/// Return whether we can guarantee physical register assignment if VReg's value
19/// is rematerialized immediately before its use in MI. The new live range must
20/// be assignable without further spilling. For example, if MI is a pseudo
21/// instruction that has more register operands than available physical
22/// registers, rematerializing VReg may leave the new live range unassignable.
23bool canGuaranteeAssignmentAfterRemat(Register VReg, const MachineInstr &MI);
24
25} // end namespace llvm
26
27#endif // LLVM_LIB_CODEGEN_INLINESPILLER_H
28