1 //===-- TargetParser - Parser for target features ---------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements a target parser to recognise hardware features such as
11 // FPU/CPU/ARCH names as well as specific support such as HDIV, etc.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_SUPPORT_TARGETPARSER_H
16 #define LLVM_SUPPORT_TARGETPARSER_H
18 // FIXME: vector is used because that's what clang uses for subtarget feature
19 // lists, but SmallVector would probably be better
20 #include "llvm/ADT/Triple.h"
26 // Target specific information into their own namespaces. These should be
27 // generated from TableGen because the information is already there, and there
28 // is where new information about targets will be added.
29 // FIXME: To TableGen this we need to make some table generated files available
30 // even if the back-end is not compiled with LLVM, plus we need to create a new
31 // back-end to TableGen to create these clean tables.
36 #define ARM_FPU(NAME, KIND, VERSION, NEON_SUPPORT, RESTRICTION) KIND,
37 #include "ARMTargetParser.def"
51 // An FPU name implies one of three levels of Neon support:
52 enum NeonSupportLevel {
53 NS_None = 0, ///< No Neon
55 NS_Crypto ///< Neon with Crypto
58 // An FPU name restricts the FPU in one of three ways:
60 FR_None = 0, ///< No restriction
61 FR_D16, ///< Only 16 D registers
62 FR_SP_D16 ///< Only single-precision instructions, with 16 D registers
67 #define ARM_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU, ARCH_BASE_EXT) ID,
68 #include "ARMTargetParser.def"
72 // Arch extension modifiers for CPUs.
73 enum ArchExtKind : unsigned {
79 AEK_HWDIVTHUMB = 0x10,
89 // Unsupported extensions.
91 AEK_IWMMXT = 0x10000000,
92 AEK_IWMMXT2 = 0x20000000,
93 AEK_MAVERICK = 0x40000000,
94 AEK_XSCALE = 0x80000000,
98 enum ISAKind { IK_INVALID = 0, IK_ARM, IK_THUMB, IK_AARCH64 };
101 // FIXME: BE8 vs. BE32?
102 enum EndianKind { EK_INVALID = 0, EK_LITTLE, EK_BIG };
105 enum ProfileKind { PK_INVALID = 0, PK_A, PK_R, PK_M };
107 StringRef getCanonicalArchName(StringRef Arch);
110 StringRef getFPUName(unsigned FPUKind);
111 unsigned getFPUVersion(unsigned FPUKind);
112 unsigned getFPUNeonSupportLevel(unsigned FPUKind);
113 unsigned getFPURestriction(unsigned FPUKind);
115 // FIXME: These should be moved to TargetTuple once it exists
116 bool getFPUFeatures(unsigned FPUKind, std::vector<StringRef> &Features);
117 bool getHWDivFeatures(unsigned HWDivKind, std::vector<StringRef> &Features);
118 bool getExtensionFeatures(unsigned Extensions,
119 std::vector<StringRef> &Features);
121 StringRef getArchName(unsigned ArchKind);
122 unsigned getArchAttr(unsigned ArchKind);
123 StringRef getCPUAttr(unsigned ArchKind);
124 StringRef getSubArch(unsigned ArchKind);
125 StringRef getArchExtName(unsigned ArchExtKind);
126 StringRef getArchExtFeature(StringRef ArchExt);
127 StringRef getHWDivName(unsigned HWDivKind);
129 // Information by Name
130 unsigned getDefaultFPU(StringRef CPU, unsigned ArchKind);
131 unsigned getDefaultExtensions(StringRef CPU, unsigned ArchKind);
132 StringRef getDefaultCPU(StringRef Arch);
135 unsigned parseHWDiv(StringRef HWDiv);
136 unsigned parseFPU(StringRef FPU);
137 unsigned parseArch(StringRef Arch);
138 unsigned parseArchExt(StringRef ArchExt);
139 unsigned parseCPUArch(StringRef CPU);
140 unsigned parseArchISA(StringRef Arch);
141 unsigned parseArchEndian(StringRef Arch);
142 unsigned parseArchProfile(StringRef Arch);
143 unsigned parseArchVersion(StringRef Arch);
145 StringRef computeDefaultTargetABI(const Triple &TT, StringRef CPU);
149 // FIXME:This should be made into class design,to avoid dupplication.
153 enum class ArchKind {
154 #define AARCH64_ARCH(NAME, ID, CPU_ATTR, SUB_ARCH, ARCH_ATTR, ARCH_FPU, ARCH_BASE_EXT) ID,
155 #include "AArch64TargetParser.def"
159 // Arch extension modifiers for CPUs.
160 enum ArchExtKind : unsigned {
174 StringRef getCanonicalArchName(StringRef Arch);
177 StringRef getFPUName(unsigned FPUKind);
178 unsigned getFPUVersion(unsigned FPUKind);
179 unsigned getFPUNeonSupportLevel(unsigned FPUKind);
180 unsigned getFPURestriction(unsigned FPUKind);
182 // FIXME: These should be moved to TargetTuple once it exists
183 bool getFPUFeatures(unsigned FPUKind, std::vector<StringRef> &Features);
184 bool getExtensionFeatures(unsigned Extensions,
185 std::vector<StringRef> &Features);
186 bool getArchFeatures(unsigned ArchKind, std::vector<StringRef> &Features);
188 StringRef getArchName(unsigned ArchKind);
189 unsigned getArchAttr(unsigned ArchKind);
190 StringRef getCPUAttr(unsigned ArchKind);
191 StringRef getSubArch(unsigned ArchKind);
192 StringRef getArchExtName(unsigned ArchExtKind);
193 StringRef getArchExtFeature(StringRef ArchExt);
194 unsigned checkArchVersion(StringRef Arch);
196 // Information by Name
197 unsigned getDefaultFPU(StringRef CPU, unsigned ArchKind);
198 unsigned getDefaultExtensions(StringRef CPU, unsigned ArchKind);
199 StringRef getDefaultCPU(StringRef Arch);
202 unsigned parseFPU(StringRef FPU);
203 unsigned parseArch(StringRef Arch);
204 unsigned parseArchExt(StringRef ArchExt);
205 unsigned parseCPUArch(StringRef CPU);
206 unsigned parseArchISA(StringRef Arch);
207 unsigned parseArchEndian(StringRef Arch);
208 unsigned parseArchProfile(StringRef Arch);
209 unsigned parseArchVersion(StringRef Arch);
211 } // namespace AArch64