diff options
Diffstat (limited to 'include/llvm/CodeGen/LiveIntervals.h')
| -rw-r--r-- | include/llvm/CodeGen/LiveIntervals.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/include/llvm/CodeGen/LiveIntervals.h b/include/llvm/CodeGen/LiveIntervals.h index 16ab1dc475c4..588b0f9cf39c 100644 --- a/include/llvm/CodeGen/LiveIntervals.h +++ b/include/llvm/CodeGen/LiveIntervals.h @@ -1,9 +1,8 @@ //===- LiveIntervals.h - Live Interval Analysis -----------------*- C++ -*-===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// 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 // //===----------------------------------------------------------------------===// // @@ -418,6 +417,15 @@ class VirtRegMap; RegUnitRanges[Unit] = nullptr; } + /// Remove associated live ranges for the register units associated with \p + /// Reg. Subsequent uses should rely on on-demand recomputation. \note This + /// method can result in inconsistent liveness tracking if multiple phyical + /// registers share a regunit, and should be used cautiously. + void removeAllRegUnitsForPhysReg(unsigned Reg) { + for (MCRegUnitIterator Units(Reg, TRI); Units.isValid(); ++Units) + removeRegUnit(*Units); + } + /// Remove value numbers and related live segments starting at position /// \p Pos that are part of any liverange of physical register \p Reg or one /// of its subregisters. |