| //===- InlineSpiller.h - Inline spiller helpers -----------------*- 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_INLINESPILLER_H | |
| #define LLVM_LIB_CODEGEN_INLINESPILLER_H | |
| #include "llvm/CodeGen/Register.h" | |
| namespace llvm { | |
| class MachineInstr; | |
| /// Return whether we can guarantee physical register assignment if VReg's value | |
| /// is rematerialized immediately before its use in MI. The new live range must | |
| /// be assignable without further spilling. For example, if MI is a pseudo | |
| /// instruction that has more register operands than available physical | |
| /// registers, rematerializing VReg may leave the new live range unassignable. | |
| bool canGuaranteeAssignmentAfterRemat(Register VReg, const MachineInstr &MI); | |
| } // end namespace llvm | |
| #endif // LLVM_LIB_CODEGEN_INLINESPILLER_H |