contrib/llvm/lib/Support/ARMBuildAttrs.cpp

   1 //===-- ARMBuildAttrs.cpp - ARM Build Attributes --------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/ADT/StringRef.h"
  11 #include "llvm/Support/ARMBuildAttributes.h"
  12
  13 using namespace llvm;
  14
  15 namespace {
  16 const struct {
  17   ARMBuildAttrs::AttrType Attr;
  18   StringRef TagName;
  19 } ARMAttributeTags[] = {
  20   { ARMBuildAttrs::File, "Tag_File" },
  21   { ARMBuildAttrs::Section, "Tag_Section" },
  22   { ARMBuildAttrs::Symbol, "Tag_Symbol" },
  23   { ARMBuildAttrs::CPU_raw_name, "Tag_CPU_raw_name" },
  24   { ARMBuildAttrs::CPU_name, "Tag_CPU_name" },
  25   { ARMBuildAttrs::CPU_arch, "Tag_CPU_arch" },
  26   { ARMBuildAttrs::CPU_arch_profile, "Tag_CPU_arch_profile" },
  27   { ARMBuildAttrs::ARM_ISA_use, "Tag_ARM_ISA_use" },
  28   { ARMBuildAttrs::THUMB_ISA_use, "Tag_THUMB_ISA_use" },
  29   { ARMBuildAttrs::FP_arch, "Tag_FP_arch" },
  30   { ARMBuildAttrs::WMMX_arch, "Tag_WMMX_arch" },
  31   { ARMBuildAttrs::Advanced_SIMD_arch, "Tag_Advanced_SIMD_arch" },
  32   { ARMBuildAttrs::PCS_config, "Tag_PCS_config" },
  33   { ARMBuildAttrs::ABI_PCS_R9_use, "Tag_ABI_PCS_R9_use" },
  34   { ARMBuildAttrs::ABI_PCS_RW_data, "Tag_ABI_PCS_RW_data" },
  35   { ARMBuildAttrs::ABI_PCS_RO_data, "Tag_ABI_PCS_RO_data" },
  36   { ARMBuildAttrs::ABI_PCS_GOT_use, "Tag_ABI_PCS_GOT_use" },
  37   { ARMBuildAttrs::ABI_PCS_wchar_t, "Tag_ABI_PCS_wchar_t" },
  38   { ARMBuildAttrs::ABI_FP_rounding, "Tag_ABI_FP_rounding" },
  39   { ARMBuildAttrs::ABI_FP_denormal, "Tag_ABI_FP_denormal" },
  40   { ARMBuildAttrs::ABI_FP_exceptions, "Tag_ABI_FP_exceptions" },
  41   { ARMBuildAttrs::ABI_FP_user_exceptions, "Tag_ABI_FP_user_exceptions" },
  42   { ARMBuildAttrs::ABI_FP_number_model, "Tag_ABI_FP_number_model" },
  43   { ARMBuildAttrs::ABI_align_needed, "Tag_ABI_align_needed" },
  44   { ARMBuildAttrs::ABI_align_preserved, "Tag_ABI_align_preserved" },
  45   { ARMBuildAttrs::ABI_enum_size, "Tag_ABI_enum_size" },
  46   { ARMBuildAttrs::ABI_HardFP_use, "Tag_ABI_HardFP_use" },
  47   { ARMBuildAttrs::ABI_VFP_args, "Tag_ABI_VFP_args" },
  48   { ARMBuildAttrs::ABI_WMMX_args, "Tag_ABI_WMMX_args" },
  49   { ARMBuildAttrs::ABI_optimization_goals, "Tag_ABI_optimization_goals" },
  50   { ARMBuildAttrs::ABI_FP_optimization_goals, "Tag_ABI_FP_optimization_goals" },
  51   { ARMBuildAttrs::compatibility, "Tag_compatibility" },
  52   { ARMBuildAttrs::CPU_unaligned_access, "Tag_CPU_unaligned_access" },
  53   { ARMBuildAttrs::FP_HP_extension, "Tag_FP_HP_extension" },
  54   { ARMBuildAttrs::ABI_FP_16bit_format, "Tag_ABI_FP_16bit_format" },
  55   { ARMBuildAttrs::MPextension_use, "Tag_MPextension_use" },
  56   { ARMBuildAttrs::DIV_use, "Tag_DIV_use" },
  57   { ARMBuildAttrs::DSP_extension, "Tag_DSP_extension" },
  58   { ARMBuildAttrs::nodefaults, "Tag_nodefaults" },
  59   { ARMBuildAttrs::also_compatible_with, "Tag_also_compatible_with" },
  60   { ARMBuildAttrs::T2EE_use, "Tag_T2EE_use" },
  61   { ARMBuildAttrs::conformance, "Tag_conformance" },
  62   { ARMBuildAttrs::Virtualization_use, "Tag_Virtualization_use" },
  63
  64   // Legacy Names
  65   { ARMBuildAttrs::FP_arch, "Tag_VFP_arch" },
  66   { ARMBuildAttrs::FP_HP_extension, "Tag_VFP_HP_extension" },
  67   { ARMBuildAttrs::ABI_align_needed, "Tag_ABI_align8_needed" },
  68   { ARMBuildAttrs::ABI_align_preserved, "Tag_ABI_align8_preserved" },
  69 };
  70 }
  71
  72 namespace llvm {
  73 namespace ARMBuildAttrs {
  74 StringRef AttrTypeAsString(unsigned Attr, bool HasTagPrefix) {
  75   return AttrTypeAsString(static_cast<AttrType>(Attr), HasTagPrefix);
  76 }
  77
  78 StringRef AttrTypeAsString(AttrType Attr, bool HasTagPrefix) {
  79   for (unsigned TI = 0, TE = sizeof(ARMAttributeTags) / sizeof(*ARMAttributeTags);
  80        TI != TE; ++TI)
  81     if (ARMAttributeTags[TI].Attr == Attr) {
  82       auto TagName = ARMAttributeTags[TI].TagName;
  83       return HasTagPrefix ? TagName : TagName.drop_front(4);
  84     }
  85   return "";
  86 }
  87
  88 int AttrTypeFromString(StringRef Tag) {
  89   bool HasTagPrefix = Tag.startswith("Tag_");
  90   for (unsigned TI = 0,
  91                 TE = sizeof(ARMAttributeTags) / sizeof(*ARMAttributeTags);
  92        TI != TE; ++TI) {
  93     auto TagName = ARMAttributeTags[TI].TagName;
  94     if (TagName.drop_front(HasTagPrefix ? 0 : 4) == Tag) {
  95       return ARMAttributeTags[TI].Attr;
  96     }
  97   }
  98   return -1;
  99 }
 100 }
 101 }
 102