llvm/TargetParser/ARMTargetParserCommon.h

0001 //===---------------- ARMTargetParserCommon ---------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008 //
0009 // Code that is common to ARMTargetParser and AArch64TargetParser.
0010 //
0011 //===----------------------------------------------------------------------===//
0012
0013 #ifndef LLVM_TARGETPARSER_ARMTARGETPARSERCOMMON_H
0014 #define LLVM_TARGETPARSER_ARMTARGETPARSERCOMMON_H
0015
0016 #include "llvm/ADT/StringRef.h"
0017
0018 namespace llvm {
0019 namespace ARM {
0020
0021 enum class ISAKind { INVALID = 0, ARM, THUMB, AARCH64 };
0022
0023 enum class EndianKind { INVALID = 0, LITTLE, BIG };
0024
0025 /// Converts e.g. "armv8" -> "armv8-a"
0026 StringRef getArchSynonym(StringRef Arch);
0027
0028 /// MArch is expected to be of the form (arm|thumb)?(eb)?(v.+)?(eb)?, but
0029 /// (iwmmxt|xscale)(eb)? is also permitted. If the former, return
0030 /// "v.+", if the latter, return unmodified string, minus 'eb'.
0031 /// If invalid, return empty string.
0032 StringRef getCanonicalArchName(StringRef Arch);
0033
0034 // ARM, Thumb, AArch64
0035 ISAKind parseArchISA(StringRef Arch);
0036
0037 // Little/Big endian
0038 EndianKind parseArchEndian(StringRef Arch);
0039
0040 struct ParsedBranchProtection {
0041   StringRef Scope;
0042   StringRef Key;
0043   bool BranchTargetEnforcement;
0044   bool BranchProtectionPAuthLR;
0045   bool GuardedControlStack;
0046 };
0047
0048 bool parseBranchProtection(StringRef Spec, ParsedBranchProtection &PBP,
0049                            StringRef &Err, bool EnablePAuthLR = false);
0050
0051 } // namespace ARM
0052 } // namespace llvm
0053 #endif