lib/Support/ARMBuildAttrs.cpp

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