1 //===---------------- ARMTargetParserCommon ---------------------*- 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 // Code that is common to ARMTargetParser and AArch64TargetParser.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_TARGETPARSER_ARMTARGETPARSERCOMMON_H
14 #define LLVM_TARGETPARSER_ARMTARGETPARSERCOMMON_H
15 
16 #include "llvm/ADT/StringRef.h"
17 
18 namespace llvm {
19 namespace ARM {
20 
21 enum class ISAKind { INVALID = 0, ARM, THUMB, AARCH64 };
22 
23 enum class EndianKind { INVALID = 0, LITTLE, BIG };
24 
25 /// Converts e.g. "armv8" -> "armv8-a"
26 StringRef getArchSynonym(StringRef Arch);
27 
28 /// MArch is expected to be of the form (arm|thumb)?(eb)?(v.+)?(eb)?, but
29 /// (iwmmxt|xscale)(eb)? is also permitted. If the former, return
30 /// "v.+", if the latter, return unmodified string, minus 'eb'.
31 /// If invalid, return empty string.
32 StringRef getCanonicalArchName(StringRef Arch);
33 
34 // ARM, Thumb, AArch64
35 ISAKind parseArchISA(StringRef Arch);
36 
37 // Little/Big endian
38 EndianKind parseArchEndian(StringRef Arch);
39 
40 struct ParsedBranchProtection {
41   StringRef Scope;
42   StringRef Key;
43   bool BranchTargetEnforcement;
44   bool BranchProtectionPAuthLR;
45   bool GuardedControlStack;
46 };
47 
48 bool parseBranchProtection(StringRef Spec, ParsedBranchProtection &PBP,
49                            StringRef &Err);
50 
51 } // namespace ARM
52 } // namespace llvm
53 #endif
54