include/llvm/Support/AArch64TargetParser.h

   1 //===-- AArch64TargetParser - Parser for AArch64 features -------*- 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 // This file implements a target parser to recognise AArch64 hardware features
  10 // such as FPU/CPU/ARCH and extension names.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_SUPPORT_AARCH64TARGETPARSERCOMMON_H
  15 #define LLVM_SUPPORT_AARCH64TARGETPARSERCOMMON_H
  16
  17 #include "llvm/ADT/StringRef.h"
  18 #include "llvm/ADT/Triple.h"
  19 #include "llvm/Support/ARMTargetParser.h"
  20 #include <vector>
  21
  22 // FIXME:This should be made into class design,to avoid dupplication.
  23 namespace llvm {
  24 namespace AArch64 {
  25
  26 // Arch extension modifiers for CPUs.
  27 enum ArchExtKind : unsigned {
  28   AEK_INVALID =     0,
  29   AEK_NONE =        1,
  30   AEK_CRC =         1 << 1,
  31   AEK_CRYPTO =      1 << 2,
  32   AEK_FP =          1 << 3,
  33   AEK_SIMD =        1 << 4,
  34   AEK_FP16 =        1 << 5,
  35   AEK_PROFILE =     1 << 6,
  36   AEK_RAS =         1 << 7,
  37   AEK_LSE =         1 << 8,
  38   AEK_SVE =         1 << 9,
  39   AEK_DOTPROD =     1 << 10,
  40   AEK_RCPC =        1 << 11,
  41   AEK_RDM =         1 << 12,
  42   AEK_SM4 =         1 << 13,
  43   AEK_SHA3 =        1 << 14,
  44   AEK_SHA2 =        1 << 15,
  45   AEK_AES =         1 << 16,
  46   AEK_FP16FML =     1 << 17,
  47   AEK_RAND =        1 << 18,
  48   AEK_MTE =         1 << 19,
  49   AEK_SSBS =        1 << 20,
  50   AEK_SB =          1 << 21,
  51   AEK_PREDRES =     1 << 22,
  52 };
  53
  54 enum class ArchKind {
  55 #define AARCH64_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU, ARCH_BASE_EXT) ID,
  56 #include "AArch64TargetParser.def"
  57 };
  58
  59 const ARM::ArchNames<ArchKind> AArch64ARCHNames[] = {
  60 #define AARCH64_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU,        \
  61                      ARCH_BASE_EXT)                                            \
  62   {NAME,                                                                       \
  63    sizeof(NAME) - 1,                                                           \
  64    CPU_ATTR,                                                                   \
  65    sizeof(CPU_ATTR) - 1,                                                       \
  66    SUB_ARCH,                                                                   \
  67    sizeof(SUB_ARCH) - 1,                                                       \
  68    ARM::FPUKind::ARCH_FPU,                                                     \
  69    ARCH_BASE_EXT,                                                              \
  70    AArch64::ArchKind::ID,                                                      \
  71    ARCH_ATTR},
  72 #include "AArch64TargetParser.def"
  73 };
  74
  75 const ARM::ExtName AArch64ARCHExtNames[] = {
  76 #define AARCH64_ARCH_EXT_NAME(NAME, ID, FEATURE, NEGFEATURE)                   \
  77   {NAME, sizeof(NAME) - 1, ID, FEATURE, NEGFEATURE},
  78 #include "AArch64TargetParser.def"
  79 };
  80
  81 const ARM::CpuNames<ArchKind> AArch64CPUNames[] = {
  82 #define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT)       \
  83   {NAME, sizeof(NAME) - 1, AArch64::ArchKind::ID, IS_DEFAULT, DEFAULT_EXT},
  84 #include "AArch64TargetParser.def"
  85 };
  86
  87 const ArchKind ArchKinds[] = {
  88 #define AARCH64_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU, ARCH_BASE_EXT) \
  89     ArchKind::ID,
  90 #include "AArch64TargetParser.def"
  91 };
  92
  93 // FIXME: These should be moved to TargetTuple once it exists
  94 bool getExtensionFeatures(unsigned Extensions,
  95                           std::vector<StringRef> &Features);
  96 bool getArchFeatures(ArchKind AK, std::vector<StringRef> &Features);
  97
  98 StringRef getArchName(ArchKind AK);
  99 unsigned getArchAttr(ArchKind AK);
 100 StringRef getCPUAttr(ArchKind AK);
 101 StringRef getSubArch(ArchKind AK);
 102 StringRef getArchExtName(unsigned ArchExtKind);
 103 StringRef getArchExtFeature(StringRef ArchExt);
 104
 105 // Information by Name
 106 unsigned getDefaultFPU(StringRef CPU, ArchKind AK);
 107 unsigned getDefaultExtensions(StringRef CPU, ArchKind AK);
 108 StringRef getDefaultCPU(StringRef Arch);
 109 ArchKind getCPUArchKind(StringRef CPU);
 110
 111 // Parser
 112 ArchKind parseArch(StringRef Arch);
 113 ArchExtKind parseArchExt(StringRef ArchExt);
 114 ArchKind parseCPUArch(StringRef CPU);
 115 // Used by target parser tests
 116 void fillValidCPUArchList(SmallVectorImpl<StringRef> &Values);
 117
 118 bool isX18ReservedByDefault(const Triple &TT);
 119
 120 } // namespace AArch64
 121 } // namespace llvm
 122
 123 #endif