include/llvm/Support/ARMAttributeParser.h

   1 //===--- ARMAttributeParser.h - ARM Attribute Information Printer ---------===//
   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 #ifndef LLVM_SUPPORT_ARMATTRIBUTEPARSER_H
  10 #define LLVM_SUPPORT_ARMATTRIBUTEPARSER_H
  11
  12 #include "ARMBuildAttributes.h"
  13 #include "ScopedPrinter.h"
  14
  15 #include <map>
  16
  17 namespace llvm {
  18 class StringRef;
  19
  20 class ARMAttributeParser {
  21   ScopedPrinter *SW;
  22
  23   std::map<unsigned, unsigned> Attributes;
  24
  25   struct DisplayHandler {
  26     ARMBuildAttrs::AttrType Attribute;
  27     void (ARMAttributeParser::*Routine)(ARMBuildAttrs::AttrType,
  28                                         const uint8_t *, uint32_t &);
  29   };
  30   static const DisplayHandler DisplayRoutines[];
  31
  32   uint64_t ParseInteger(const uint8_t *Data, uint32_t &Offset);
  33   StringRef ParseString(const uint8_t *Data, uint32_t &Offset);
  34
  35   void IntegerAttribute(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  36                         uint32_t &Offset);
  37   void StringAttribute(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  38                        uint32_t &Offset);
  39
  40   void PrintAttribute(unsigned Tag, unsigned Value, StringRef ValueDesc);
  41
  42   void CPU_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  43                 uint32_t &Offset);
  44   void CPU_arch_profile(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  45                         uint32_t &Offset);
  46   void ARM_ISA_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  47                    uint32_t &Offset);
  48   void THUMB_ISA_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  49                      uint32_t &Offset);
  50   void FP_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  51                uint32_t &Offset);
  52   void WMMX_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  53                  uint32_t &Offset);
  54   void Advanced_SIMD_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  55                           uint32_t &Offset);
  56   void MVE_arch(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  57                 uint32_t &Offset);
  58   void PCS_config(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  59                   uint32_t &Offset);
  60   void ABI_PCS_R9_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  61                       uint32_t &Offset);
  62   void ABI_PCS_RW_data(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  63                        uint32_t &Offset);
  64   void ABI_PCS_RO_data(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  65                        uint32_t &Offset);
  66   void ABI_PCS_GOT_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  67                        uint32_t &Offset);
  68   void ABI_PCS_wchar_t(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  69                        uint32_t &Offset);
  70   void ABI_FP_rounding(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  71                        uint32_t &Offset);
  72   void ABI_FP_denormal(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  73                        uint32_t &Offset);
  74   void ABI_FP_exceptions(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  75                          uint32_t &Offset);
  76   void ABI_FP_user_exceptions(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  77                               uint32_t &Offset);
  78   void ABI_FP_number_model(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  79                            uint32_t &Offset);
  80   void ABI_align_needed(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  81                         uint32_t &Offset);
  82   void ABI_align_preserved(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  83                            uint32_t &Offset);
  84   void ABI_enum_size(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  85                      uint32_t &Offset);
  86   void ABI_HardFP_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  87                       uint32_t &Offset);
  88   void ABI_VFP_args(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  89                     uint32_t &Offset);
  90   void ABI_WMMX_args(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  91                      uint32_t &Offset);
  92   void ABI_optimization_goals(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  93                               uint32_t &Offset);
  94   void ABI_FP_optimization_goals(ARMBuildAttrs::AttrType Tag,
  95                                  const uint8_t *Data, uint32_t &Offset);
  96   void compatibility(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  97                      uint32_t &Offset);
  98   void CPU_unaligned_access(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
  99                             uint32_t &Offset);
 100   void FP_HP_extension(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 101                        uint32_t &Offset);
 102   void ABI_FP_16bit_format(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 103                            uint32_t &Offset);
 104   void MPextension_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 105                        uint32_t &Offset);
 106   void DIV_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 107                uint32_t &Offset);
 108   void DSP_extension(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 109                      uint32_t &Offset);
 110   void T2EE_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 111                 uint32_t &Offset);
 112   void Virtualization_use(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 113                           uint32_t &Offset);
 114   void nodefaults(ARMBuildAttrs::AttrType Tag, const uint8_t *Data,
 115                   uint32_t &Offset);
 116
 117   void ParseAttributeList(const uint8_t *Data, uint32_t &Offset,
 118                           uint32_t Length);
 119   void ParseIndexList(const uint8_t *Data, uint32_t &Offset,
 120                       SmallVectorImpl<uint8_t> &IndexList);
 121   void ParseSubsection(const uint8_t *Data, uint32_t Length);
 122 public:
 123   ARMAttributeParser(ScopedPrinter *SW) : SW(SW) {}
 124
 125   ARMAttributeParser() : SW(nullptr) { }
 126
 127   void Parse(ArrayRef<uint8_t> Section, bool isLittle);
 128
 129   bool hasAttribute(unsigned Tag) const {
 130     return Attributes.count(Tag);
 131   }
 132
 133   unsigned getAttributeValue(unsigned Tag) const {
 134     return Attributes.find(Tag)->second;
 135   }
 136 };
 137
 138 }
 139
 140 #endif
 141