LLVM  9.0.0svn
ARMBuildAttrs.cpp
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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"
11 
12 using namespace llvm;
13 
14 namespace {
15 const struct {
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 
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 
This class represents lattice values for constants.
Definition: AllocatorList.h:23
LLVM_NODISCARD bool startswith(StringRef Prefix) const
Check if this string starts with the given Prefix.
Definition: StringRef.h:256
StringRef AttrTypeAsString(unsigned Attr, bool HasTagPrefix=true)
int AttrTypeFromString(StringRef Tag)
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48