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1 //===- LLVMBitCodes.h - Enum values for the LLVM bitcode format -*- C++ -*-===//
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 // This header defines Bitcode enum values for LLVM IR bitcode files.
10 //
11 // The enum values defined in this file should be considered permanent.  If
12 // new features are added, they should have values added at the end of the
13 // respective lists.
14 //
15 //===----------------------------------------------------------------------===//
16 
17 #ifndef LLVM_BITCODE_LLVMBITCODES_H
18 #define LLVM_BITCODE_LLVMBITCODES_H
19 
20 #include "llvm/Bitstream/BitCodes.h"
21 
22 namespace llvm {
23 namespace bitc {
24 // The only top-level block types are MODULE, IDENTIFICATION, STRTAB and SYMTAB.
25 enum BlockIDs {
26   // Blocks
27   MODULE_BLOCK_ID = FIRST_APPLICATION_BLOCKID,
28 
29   // Module sub-block id's.
30   PARAMATTR_BLOCK_ID,
31   PARAMATTR_GROUP_BLOCK_ID,
32 
33   CONSTANTS_BLOCK_ID,
34   FUNCTION_BLOCK_ID,
35 
36   // Block intended to contains information on the bitcode versioning.
37   // Can be used to provide better error messages when we fail to parse a
38   // bitcode file.
39   IDENTIFICATION_BLOCK_ID,
40 
41   VALUE_SYMTAB_BLOCK_ID,
42   METADATA_BLOCK_ID,
43   METADATA_ATTACHMENT_ID,
44 
45   TYPE_BLOCK_ID_NEW,
46 
47   USELIST_BLOCK_ID,
48 
49   MODULE_STRTAB_BLOCK_ID,
50   GLOBALVAL_SUMMARY_BLOCK_ID,
51 
52   OPERAND_BUNDLE_TAGS_BLOCK_ID,
53 
54   METADATA_KIND_BLOCK_ID,
55 
56   STRTAB_BLOCK_ID,
57 
58   FULL_LTO_GLOBALVAL_SUMMARY_BLOCK_ID,
59 
60   SYMTAB_BLOCK_ID,
61 
62   SYNC_SCOPE_NAMES_BLOCK_ID,
63 };
64 
65 /// Identification block contains a string that describes the producer details,
66 /// and an epoch that defines the auto-upgrade capability.
67 enum IdentificationCodes {
68   IDENTIFICATION_CODE_STRING = 1, // IDENTIFICATION:      [strchr x N]
69   IDENTIFICATION_CODE_EPOCH = 2,  // EPOCH:               [epoch#]
70 };
71 
72 /// The epoch that defines the auto-upgrade compatibility for the bitcode.
73 ///
74 /// LLVM guarantees in a major release that a minor release can read bitcode
75 /// generated by previous minor releases. We translate this by making the reader
76 /// accepting only bitcode with the same epoch, except for the X.0 release which
77 /// also accepts N-1.
78 enum { BITCODE_CURRENT_EPOCH = 0 };
79 
80 /// MODULE blocks have a number of optional fields and subblocks.
81 enum ModuleCodes {
82   MODULE_CODE_VERSION = 1,     // VERSION:     [version#]
83   MODULE_CODE_TRIPLE = 2,      // TRIPLE:      [strchr x N]
84   MODULE_CODE_DATALAYOUT = 3,  // DATALAYOUT:  [strchr x N]
85   MODULE_CODE_ASM = 4,         // ASM:         [strchr x N]
86   MODULE_CODE_SECTIONNAME = 5, // SECTIONNAME: [strchr x N]
87 
88   // FIXME: Remove DEPLIB in 4.0.
89   MODULE_CODE_DEPLIB = 6, // DEPLIB:      [strchr x N]
90 
91   // GLOBALVAR: [pointer type, isconst, initid,
92   //             linkage, alignment, section, visibility, threadlocal]
93   MODULE_CODE_GLOBALVAR = 7,
94 
95   // FUNCTION:  [type, callingconv, isproto, linkage, paramattrs, alignment,
96   //             section, visibility, gc, unnamed_addr]
97   MODULE_CODE_FUNCTION = 8,
98 
99   // ALIAS: [alias type, aliasee val#, linkage, visibility]
100   MODULE_CODE_ALIAS_OLD = 9,
101 
102   MODULE_CODE_GCNAME = 11, // GCNAME: [strchr x N]
103   MODULE_CODE_COMDAT = 12, // COMDAT: [selection_kind, name]
104 
105   MODULE_CODE_VSTOFFSET = 13, // VSTOFFSET: [offset]
106 
107   // ALIAS: [alias value type, addrspace, aliasee val#, linkage, visibility]
108   MODULE_CODE_ALIAS = 14,
109 
110   MODULE_CODE_METADATA_VALUES_UNUSED = 15,
111 
112   // SOURCE_FILENAME: [namechar x N]
113   MODULE_CODE_SOURCE_FILENAME = 16,
114 
115   // HASH: [5*i32]
116   MODULE_CODE_HASH = 17,
117 
118   // IFUNC: [ifunc value type, addrspace, resolver val#, linkage, visibility]
119   MODULE_CODE_IFUNC = 18,
120 };
121 
122 /// PARAMATTR blocks have code for defining a parameter attribute set.
123 enum AttributeCodes {
124   // FIXME: Remove `PARAMATTR_CODE_ENTRY_OLD' in 4.0
125   PARAMATTR_CODE_ENTRY_OLD = 1, // ENTRY: [paramidx0, attr0,
126                                 //         paramidx1, attr1...]
127   PARAMATTR_CODE_ENTRY = 2,     // ENTRY: [attrgrp0, attrgrp1, ...]
128   PARAMATTR_GRP_CODE_ENTRY = 3  // ENTRY: [grpid, idx, attr0, attr1, ...]
129 };
130 
131 /// TYPE blocks have codes for each type primitive they use.
132 enum TypeCodes {
133   TYPE_CODE_NUMENTRY = 1, // NUMENTRY: [numentries]
134 
135   // Type Codes
136   TYPE_CODE_VOID = 2,    // VOID
137   TYPE_CODE_FLOAT = 3,   // FLOAT
138   TYPE_CODE_DOUBLE = 4,  // DOUBLE
139   TYPE_CODE_LABEL = 5,   // LABEL
140   TYPE_CODE_OPAQUE = 6,  // OPAQUE
141   TYPE_CODE_INTEGER = 7, // INTEGER: [width]
142   TYPE_CODE_POINTER = 8, // POINTER: [pointee type]
143 
144   TYPE_CODE_FUNCTION_OLD = 9, // FUNCTION: [vararg, attrid, retty,
145                               //            paramty x N]
146 
147   TYPE_CODE_HALF = 10, // HALF
148 
149   TYPE_CODE_ARRAY = 11,  // ARRAY: [numelts, eltty]
150   TYPE_CODE_VECTOR = 12, // VECTOR: [numelts, eltty]
151 
152   // These are not with the other floating point types because they're
153   // a late addition, and putting them in the right place breaks
154   // binary compatibility.
155   TYPE_CODE_X86_FP80 = 13,  // X86 LONG DOUBLE
156   TYPE_CODE_FP128 = 14,     // LONG DOUBLE (112 bit mantissa)
157   TYPE_CODE_PPC_FP128 = 15, // PPC LONG DOUBLE (2 doubles)
158 
159   TYPE_CODE_METADATA = 16, // METADATA
160 
161   TYPE_CODE_X86_MMX = 17, // X86 MMX
162 
163   TYPE_CODE_STRUCT_ANON = 18,  // STRUCT_ANON: [ispacked, eltty x N]
164   TYPE_CODE_STRUCT_NAME = 19,  // STRUCT_NAME: [strchr x N]
165   TYPE_CODE_STRUCT_NAMED = 20, // STRUCT_NAMED: [ispacked, eltty x N]
166 
167   TYPE_CODE_FUNCTION = 21, // FUNCTION: [vararg, retty, paramty x N]
168 
169   TYPE_CODE_TOKEN = 22 // TOKEN
170 };
171 
172 enum OperandBundleTagCode {
173   OPERAND_BUNDLE_TAG = 1, // TAG: [strchr x N]
174 };
175 
176 enum SyncScopeNameCode {
177   SYNC_SCOPE_NAME = 1,
178 };
179 
180 // Value symbol table codes.
181 enum ValueSymtabCodes {
182   VST_CODE_ENTRY = 1,   // VST_ENTRY: [valueid, namechar x N]
183   VST_CODE_BBENTRY = 2, // VST_BBENTRY: [bbid, namechar x N]
184   VST_CODE_FNENTRY = 3, // VST_FNENTRY: [valueid, offset, namechar x N]
185   // VST_COMBINED_ENTRY: [valueid, refguid]
186   VST_CODE_COMBINED_ENTRY = 5
187 };
188 
189 // The module path symbol table only has one code (MST_CODE_ENTRY).
190 enum ModulePathSymtabCodes {
191   MST_CODE_ENTRY = 1, // MST_ENTRY: [modid, namechar x N]
192   MST_CODE_HASH = 2,  // MST_HASH:  [5*i32]
193 };
194 
195 // The summary section uses different codes in the per-module
196 // and combined index cases.
197 enum GlobalValueSummarySymtabCodes {
198   // PERMODULE: [valueid, flags, instcount, numrefs, numrefs x valueid,
199   //             n x (valueid)]
200   FS_PERMODULE = 1,
201   // PERMODULE_PROFILE: [valueid, flags, instcount, numrefs,
202   //                     numrefs x valueid,
203   //                     n x (valueid, hotness)]
204   FS_PERMODULE_PROFILE = 2,
205   // PERMODULE_GLOBALVAR_INIT_REFS: [valueid, flags, n x valueid]
206   FS_PERMODULE_GLOBALVAR_INIT_REFS = 3,
207   // COMBINED: [valueid, modid, flags, instcount, numrefs, numrefs x valueid,
208   //            n x (valueid)]
209   FS_COMBINED = 4,
210   // COMBINED_PROFILE: [valueid, modid, flags, instcount, numrefs,
211   //                    numrefs x valueid,
212   //                    n x (valueid, hotness)]
213   FS_COMBINED_PROFILE = 5,
214   // COMBINED_GLOBALVAR_INIT_REFS: [valueid, modid, flags, n x valueid]
215   FS_COMBINED_GLOBALVAR_INIT_REFS = 6,
216   // ALIAS: [valueid, flags, valueid]
217   FS_ALIAS = 7,
218   // COMBINED_ALIAS: [valueid, modid, flags, valueid]
219   FS_COMBINED_ALIAS = 8,
220   // COMBINED_ORIGINAL_NAME: [original_name_hash]
221   FS_COMBINED_ORIGINAL_NAME = 9,
222   // VERSION of the summary, bumped when adding flags for instance.
223   FS_VERSION = 10,
224   // The list of llvm.type.test type identifiers used by the following function
225   // that are used other than by an llvm.assume.
226   // [n x typeid]
227   FS_TYPE_TESTS = 11,
228   // The list of virtual calls made by this function using
229   // llvm.assume(llvm.type.test) intrinsics that do not have all constant
230   // integer arguments.
231   // [n x (typeid, offset)]
232   FS_TYPE_TEST_ASSUME_VCALLS = 12,
233   // The list of virtual calls made by this function using
234   // llvm.type.checked.load intrinsics that do not have all constant integer
235   // arguments.
236   // [n x (typeid, offset)]
237   FS_TYPE_CHECKED_LOAD_VCALLS = 13,
238   // Identifies a virtual call made by this function using an
239   // llvm.assume(llvm.type.test) intrinsic with all constant integer arguments.
240   // [typeid, offset, n x arg]
241   FS_TYPE_TEST_ASSUME_CONST_VCALL = 14,
242   // Identifies a virtual call made by this function using an
243   // llvm.type.checked.load intrinsic with all constant integer arguments.
244   // [typeid, offset, n x arg]
245   FS_TYPE_CHECKED_LOAD_CONST_VCALL = 15,
246   // Assigns a GUID to a value ID. This normally appears only in combined
247   // summaries, but it can also appear in per-module summaries for PGO data.
248   // [valueid, guid]
249   FS_VALUE_GUID = 16,
250   // The list of local functions with CFI jump tables. Function names are
251   // strings in strtab.
252   // [n * name]
253   FS_CFI_FUNCTION_DEFS = 17,
254   // The list of external functions with CFI jump tables. Function names are
255   // strings in strtab.
256   // [n * name]
257   FS_CFI_FUNCTION_DECLS = 18,
258   // Per-module summary that also adds relative block frequency to callee info.
259   // PERMODULE_RELBF: [valueid, flags, instcount, numrefs,
260   //                   numrefs x valueid,
261   //                   n x (valueid, relblockfreq)]
262   FS_PERMODULE_RELBF = 19,
263   // Index-wide flags
264   FS_FLAGS = 20,
265   // Maps type identifier to summary information for that type identifier.
266   // Produced by the thin link (only lives in combined index).
267   // TYPE_ID: [typeid, kind, bitwidth, align, size, bitmask, inlinebits,
268   //           n x (typeid, kind, name, numrba,
269   //                numrba x (numarg, numarg x arg, kind, info, byte, bit))]
270   FS_TYPE_ID = 21,
271   // For background see overview at https://llvm.org/docs/TypeMetadata.html.
272   // The type metadata includes both the type identifier and the offset of
273   // the address point of the type (the address held by objects of that type
274   // which may not be the beginning of the virtual table). Vtable definitions
275   // are decorated with type metadata for the types they are compatible with.
276   //
277   // Maps type identifier to summary information for that type identifier
278   // computed from type metadata: the valueid of each vtable definition
279   // decorated with a type metadata for that identifier, and the offset from
280   // the corresponding type metadata.
281   // Exists in the per-module summary to provide information to thin link
282   // for index-based whole program devirtualization.
283   // TYPE_ID_METADATA: [typeid, n x (valueid, offset)]
284   FS_TYPE_ID_METADATA = 22,
285   // Summarizes vtable definition for use in index-based whole program
286   // devirtualization during the thin link.
287   // PERMODULE_VTABLE_GLOBALVAR_INIT_REFS: [valueid, flags, varflags,
288   //                                        numrefs, numrefs x valueid,
289   //                                        n x (valueid, offset)]
290   FS_PERMODULE_VTABLE_GLOBALVAR_INIT_REFS = 23,
291 };
292 
293 enum MetadataCodes {
294   METADATA_STRING_OLD = 1,     // MDSTRING:      [values]
295   METADATA_VALUE = 2,          // VALUE:         [type num, value num]
296   METADATA_NODE = 3,           // NODE:          [n x md num]
297   METADATA_NAME = 4,           // STRING:        [values]
298   METADATA_DISTINCT_NODE = 5,  // DISTINCT_NODE: [n x md num]
299   METADATA_KIND = 6,           // [n x [id, name]]
300   METADATA_LOCATION = 7,       // [distinct, line, col, scope, inlined-at?]
301   METADATA_OLD_NODE = 8,       // OLD_NODE:      [n x (type num, value num)]
302   METADATA_OLD_FN_NODE = 9,    // OLD_FN_NODE:   [n x (type num, value num)]
303   METADATA_NAMED_NODE = 10,    // NAMED_NODE:    [n x mdnodes]
304   METADATA_ATTACHMENT = 11,    // [m x [value, [n x [id, mdnode]]]
305   METADATA_GENERIC_DEBUG = 12, // [distinct, tag, vers, header, n x md num]
306   METADATA_SUBRANGE = 13,      // [distinct, count, lo]
307   METADATA_ENUMERATOR = 14,    // [isUnsigned|distinct, value, name]
308   METADATA_BASIC_TYPE = 15,    // [distinct, tag, name, size, align, enc]
309   METADATA_FILE = 16, // [distinct, filename, directory, checksumkind, checksum]
310   METADATA_DERIVED_TYPE = 17,       // [distinct, ...]
311   METADATA_COMPOSITE_TYPE = 18,     // [distinct, ...]
312   METADATA_SUBROUTINE_TYPE = 19,    // [distinct, flags, types, cc]
313   METADATA_COMPILE_UNIT = 20,       // [distinct, ...]
314   METADATA_SUBPROGRAM = 21,         // [distinct, ...]
315   METADATA_LEXICAL_BLOCK = 22,      // [distinct, scope, file, line, column]
316   METADATA_LEXICAL_BLOCK_FILE = 23, //[distinct, scope, file, discriminator]
317   METADATA_NAMESPACE = 24, // [distinct, scope, file, name, line, exportSymbols]
318   METADATA_TEMPLATE_TYPE = 25,   // [distinct, scope, name, type, ...]
319   METADATA_TEMPLATE_VALUE = 26,  // [distinct, scope, name, type, value, ...]
320   METADATA_GLOBAL_VAR = 27,      // [distinct, ...]
321   METADATA_LOCAL_VAR = 28,       // [distinct, ...]
322   METADATA_EXPRESSION = 29,      // [distinct, n x element]
323   METADATA_OBJC_PROPERTY = 30,   // [distinct, name, file, line, ...]
324   METADATA_IMPORTED_ENTITY = 31, // [distinct, tag, scope, entity, line, name]
325   METADATA_MODULE = 32,          // [distinct, scope, name, ...]
326   METADATA_MACRO = 33,           // [distinct, macinfo, line, name, value]
327   METADATA_MACRO_FILE = 34,      // [distinct, macinfo, line, file, ...]
328   METADATA_STRINGS = 35,         // [count, offset] blob([lengths][chars])
329   METADATA_GLOBAL_DECL_ATTACHMENT = 36, // [valueid, n x [id, mdnode]]
330   METADATA_GLOBAL_VAR_EXPR = 37,        // [distinct, var, expr]
331   METADATA_INDEX_OFFSET = 38,           // [offset]
332   METADATA_INDEX = 39,                  // [bitpos]
333   METADATA_LABEL = 40,                  // [distinct, scope, name, file, line]
334   METADATA_COMMON_BLOCK = 44,     // [distinct, scope, name, variable,...]
335 };
336 
337 // The constants block (CONSTANTS_BLOCK_ID) describes emission for each
338 // constant and maintains an implicit current type value.
339 enum ConstantsCodes {
340   CST_CODE_SETTYPE = 1,          // SETTYPE:       [typeid]
341   CST_CODE_NULL = 2,             // NULL
342   CST_CODE_UNDEF = 3,            // UNDEF
343   CST_CODE_INTEGER = 4,          // INTEGER:       [intval]
344   CST_CODE_WIDE_INTEGER = 5,     // WIDE_INTEGER:  [n x intval]
345   CST_CODE_FLOAT = 6,            // FLOAT:         [fpval]
346   CST_CODE_AGGREGATE = 7,        // AGGREGATE:     [n x value number]
347   CST_CODE_STRING = 8,           // STRING:        [values]
348   CST_CODE_CSTRING = 9,          // CSTRING:       [values]
349   CST_CODE_CE_BINOP = 10,        // CE_BINOP:      [opcode, opval, opval]
350   CST_CODE_CE_CAST = 11,         // CE_CAST:       [opcode, opty, opval]
351   CST_CODE_CE_GEP = 12,          // CE_GEP:        [n x operands]
352   CST_CODE_CE_SELECT = 13,       // CE_SELECT:     [opval, opval, opval]
353   CST_CODE_CE_EXTRACTELT = 14,   // CE_EXTRACTELT: [opty, opval, opval]
354   CST_CODE_CE_INSERTELT = 15,    // CE_INSERTELT:  [opval, opval, opval]
355   CST_CODE_CE_SHUFFLEVEC = 16,   // CE_SHUFFLEVEC: [opval, opval, opval]
356   CST_CODE_CE_CMP = 17,          // CE_CMP:        [opty, opval, opval, pred]
357   CST_CODE_INLINEASM_OLD = 18,   // INLINEASM:     [sideeffect|alignstack,
358                                  //                 asmstr,conststr]
359   CST_CODE_CE_SHUFVEC_EX = 19,   // SHUFVEC_EX:    [opty, opval, opval, opval]
360   CST_CODE_CE_INBOUNDS_GEP = 20, // INBOUNDS_GEP:  [n x operands]
361   CST_CODE_BLOCKADDRESS = 21,    // CST_CODE_BLOCKADDRESS [fnty, fnval, bb#]
362   CST_CODE_DATA = 22,            // DATA:          [n x elements]
363   CST_CODE_INLINEASM = 23,       // INLINEASM:     [sideeffect|alignstack|
364                                  //                 asmdialect,asmstr,conststr]
365   CST_CODE_CE_GEP_WITH_INRANGE_INDEX = 24, //      [opty, flags, n x operands]
366   CST_CODE_CE_UNOP = 25,         // CE_UNOP:      [opcode, opval]
367 };
368 
369 /// CastOpcodes - These are values used in the bitcode files to encode which
370 /// cast a CST_CODE_CE_CAST or a XXX refers to.  The values of these enums
371 /// have no fixed relation to the LLVM IR enum values.  Changing these will
372 /// break compatibility with old files.
373 enum CastOpcodes {
374   CAST_TRUNC = 0,
375   CAST_ZEXT = 1,
376   CAST_SEXT = 2,
377   CAST_FPTOUI = 3,
378   CAST_FPTOSI = 4,
379   CAST_UITOFP = 5,
380   CAST_SITOFP = 6,
381   CAST_FPTRUNC = 7,
382   CAST_FPEXT = 8,
383   CAST_PTRTOINT = 9,
384   CAST_INTTOPTR = 10,
385   CAST_BITCAST = 11,
386   CAST_ADDRSPACECAST = 12
387 };
388 
389 /// UnaryOpcodes - These are values used in the bitcode files to encode which
390 /// unop a CST_CODE_CE_UNOP or a XXX refers to.  The values of these enums
391 /// have no fixed relation to the LLVM IR enum values.  Changing these will
392 /// break compatibility with old files.
393 enum UnaryOpcodes {
394   UNOP_FNEG = 0
395 };
396 
397 /// BinaryOpcodes - These are values used in the bitcode files to encode which
398 /// binop a CST_CODE_CE_BINOP or a XXX refers to.  The values of these enums
399 /// have no fixed relation to the LLVM IR enum values.  Changing these will
400 /// break compatibility with old files.
401 enum BinaryOpcodes {
402   BINOP_ADD = 0,
403   BINOP_SUB = 1,
404   BINOP_MUL = 2,
405   BINOP_UDIV = 3,
406   BINOP_SDIV = 4, // overloaded for FP
407   BINOP_UREM = 5,
408   BINOP_SREM = 6, // overloaded for FP
409   BINOP_SHL = 7,
410   BINOP_LSHR = 8,
411   BINOP_ASHR = 9,
412   BINOP_AND = 10,
413   BINOP_OR = 11,
414   BINOP_XOR = 12
415 };
416 
417 /// These are values used in the bitcode files to encode AtomicRMW operations.
418 /// The values of these enums have no fixed relation to the LLVM IR enum
419 /// values.  Changing these will break compatibility with old files.
420 enum RMWOperations {
421   RMW_XCHG = 0,
422   RMW_ADD = 1,
423   RMW_SUB = 2,
424   RMW_AND = 3,
425   RMW_NAND = 4,
426   RMW_OR = 5,
427   RMW_XOR = 6,
428   RMW_MAX = 7,
429   RMW_MIN = 8,
430   RMW_UMAX = 9,
431   RMW_UMIN = 10,
432   RMW_FADD = 11,
433   RMW_FSUB = 12
434 };
435 
436 /// OverflowingBinaryOperatorOptionalFlags - Flags for serializing
437 /// OverflowingBinaryOperator's SubclassOptionalData contents.
438 enum OverflowingBinaryOperatorOptionalFlags {
439   OBO_NO_UNSIGNED_WRAP = 0,
440   OBO_NO_SIGNED_WRAP = 1
441 };
442 
443 /// FastMath Flags
444 /// This is a fixed layout derived from the bitcode emitted by LLVM 5.0
445 /// intended to decouple the in-memory representation from the serialization.
446 enum FastMathMap {
447   UnsafeAlgebra   = (1 << 0), // Legacy
448   NoNaNs          = (1 << 1),
449   NoInfs          = (1 << 2),
450   NoSignedZeros   = (1 << 3),
451   AllowReciprocal = (1 << 4),
452   AllowContract   = (1 << 5),
453   ApproxFunc      = (1 << 6),
454   AllowReassoc    = (1 << 7)
455 };
456 
457 /// PossiblyExactOperatorOptionalFlags - Flags for serializing
458 /// PossiblyExactOperator's SubclassOptionalData contents.
459 enum PossiblyExactOperatorOptionalFlags { PEO_EXACT = 0 };
460 
461 /// Encoded AtomicOrdering values.
462 enum AtomicOrderingCodes {
463   ORDERING_NOTATOMIC = 0,
464   ORDERING_UNORDERED = 1,
465   ORDERING_MONOTONIC = 2,
466   ORDERING_ACQUIRE = 3,
467   ORDERING_RELEASE = 4,
468   ORDERING_ACQREL = 5,
469   ORDERING_SEQCST = 6
470 };
471 
472 /// Markers and flags for call instruction.
473 enum CallMarkersFlags {
474   CALL_TAIL = 0,
475   CALL_CCONV = 1,
476   CALL_MUSTTAIL = 14,
477   CALL_EXPLICIT_TYPE = 15,
478   CALL_NOTAIL = 16,
479   CALL_FMF = 17 // Call has optional fast-math-flags.
480 };
481 
482 // The function body block (FUNCTION_BLOCK_ID) describes function bodies.  It
483 // can contain a constant block (CONSTANTS_BLOCK_ID).
484 enum FunctionCodes {
485   FUNC_CODE_DECLAREBLOCKS = 1, // DECLAREBLOCKS: [n]
486 
487   FUNC_CODE_INST_BINOP = 2,      // BINOP:      [opcode, ty, opval, opval]
488   FUNC_CODE_INST_CAST = 3,       // CAST:       [opcode, ty, opty, opval]
489   FUNC_CODE_INST_GEP_OLD = 4,    // GEP:        [n x operands]
490   FUNC_CODE_INST_SELECT = 5,     // SELECT:     [ty, opval, opval, opval]
491   FUNC_CODE_INST_EXTRACTELT = 6, // EXTRACTELT: [opty, opval, opval]
492   FUNC_CODE_INST_INSERTELT = 7,  // INSERTELT:  [ty, opval, opval, opval]
493   FUNC_CODE_INST_SHUFFLEVEC = 8, // SHUFFLEVEC: [ty, opval, opval, opval]
494   FUNC_CODE_INST_CMP = 9,        // CMP:        [opty, opval, opval, pred]
495 
496   FUNC_CODE_INST_RET = 10,    // RET:        [opty,opval<both optional>]
497   FUNC_CODE_INST_BR = 11,     // BR:         [bb#, bb#, cond] or [bb#]
498   FUNC_CODE_INST_SWITCH = 12, // SWITCH:     [opty, op0, op1, ...]
499   FUNC_CODE_INST_INVOKE = 13, // INVOKE:     [attr, fnty, op0,op1, ...]
500   // 14 is unused.
501   FUNC_CODE_INST_UNREACHABLE = 15, // UNREACHABLE
502 
503   FUNC_CODE_INST_PHI = 16, // PHI:        [ty, val0,bb0, ...]
504   // 17 is unused.
505   // 18 is unused.
506   FUNC_CODE_INST_ALLOCA = 19, // ALLOCA:     [instty, opty, op, align]
507   FUNC_CODE_INST_LOAD = 20,   // LOAD:       [opty, op, align, vol]
508   // 21 is unused.
509   // 22 is unused.
510   FUNC_CODE_INST_VAARG = 23, // VAARG:      [valistty, valist, instty]
511   // This store code encodes the pointer type, rather than the value type
512   // this is so information only available in the pointer type (e.g. address
513   // spaces) is retained.
514   FUNC_CODE_INST_STORE_OLD = 24, // STORE:      [ptrty,ptr,val, align, vol]
515   // 25 is unused.
516   FUNC_CODE_INST_EXTRACTVAL = 26, // EXTRACTVAL: [n x operands]
517   FUNC_CODE_INST_INSERTVAL = 27,  // INSERTVAL:  [n x operands]
518   // fcmp/icmp returning Int1TY or vector of Int1Ty. Same as CMP, exists to
519   // support legacy vicmp/vfcmp instructions.
520   FUNC_CODE_INST_CMP2 = 28, // CMP2:       [opty, opval, opval, pred]
521   // new select on i1 or [N x i1]
522   FUNC_CODE_INST_VSELECT = 29, // VSELECT:    [ty,opval,opval,predty,pred]
523   FUNC_CODE_INST_INBOUNDS_GEP_OLD = 30, // INBOUNDS_GEP: [n x operands]
524   FUNC_CODE_INST_INDIRECTBR = 31,       // INDIRECTBR: [opty, op0, op1, ...]
525   // 32 is unused.
526   FUNC_CODE_DEBUG_LOC_AGAIN = 33, // DEBUG_LOC_AGAIN
527 
528   FUNC_CODE_INST_CALL = 34, // CALL:    [attr, cc, fnty, fnid, args...]
529 
530   FUNC_CODE_DEBUG_LOC = 35,        // DEBUG_LOC:  [Line,Col,ScopeVal, IAVal]
531   FUNC_CODE_INST_FENCE = 36,       // FENCE: [ordering, synchscope]
532   FUNC_CODE_INST_CMPXCHG_OLD = 37, // CMPXCHG: [ptrty,ptr,cmp,new, align, vol,
533                                    //           ordering, synchscope]
534   FUNC_CODE_INST_ATOMICRMW = 38,   // ATOMICRMW: [ptrty,ptr,val, operation,
535                                    //             align, vol,
536                                    //             ordering, synchscope]
537   FUNC_CODE_INST_RESUME = 39,      // RESUME:     [opval]
538   FUNC_CODE_INST_LANDINGPAD_OLD =
539       40,                         // LANDINGPAD: [ty,val,val,num,id0,val0...]
540   FUNC_CODE_INST_LOADATOMIC = 41, // LOAD: [opty, op, align, vol,
541                                   //        ordering, synchscope]
542   FUNC_CODE_INST_STOREATOMIC_OLD = 42, // STORE: [ptrty,ptr,val, align, vol
543                                        //         ordering, synchscope]
544   FUNC_CODE_INST_GEP = 43,             // GEP:  [inbounds, n x operands]
545   FUNC_CODE_INST_STORE = 44,       // STORE: [ptrty,ptr,valty,val, align, vol]
546   FUNC_CODE_INST_STOREATOMIC = 45, // STORE: [ptrty,ptr,val, align, vol
547   FUNC_CODE_INST_CMPXCHG = 46,     // CMPXCHG: [ptrty,ptr,valty,cmp,new, align,
548                                    //           vol,ordering,synchscope]
549   FUNC_CODE_INST_LANDINGPAD = 47,  // LANDINGPAD: [ty,val,num,id0,val0...]
550   FUNC_CODE_INST_CLEANUPRET = 48,  // CLEANUPRET: [val] or [val,bb#]
551   FUNC_CODE_INST_CATCHRET = 49,    // CATCHRET: [val,bb#]
552   FUNC_CODE_INST_CATCHPAD = 50,    // CATCHPAD: [bb#,bb#,num,args...]
553   FUNC_CODE_INST_CLEANUPPAD = 51,  // CLEANUPPAD: [num,args...]
554   FUNC_CODE_INST_CATCHSWITCH =
555       52, // CATCHSWITCH: [num,args...] or [num,args...,bb]
556   // 53 is unused.
557   // 54 is unused.
558   FUNC_CODE_OPERAND_BUNDLE = 55, // OPERAND_BUNDLE: [tag#, value...]
559   FUNC_CODE_INST_UNOP = 56,      // UNOP:       [opcode, ty, opval]
560   FUNC_CODE_INST_CALLBR = 57,    // CALLBR:     [attr, cc, norm, transfs,
561                                  //              fnty, fnid, args...]
562   FUNC_CODE_INST_FREEZE = 58,    // FREEZE: [opty, opval]
563 };
564 
565 enum UseListCodes {
566   USELIST_CODE_DEFAULT = 1, // DEFAULT: [index..., value-id]
567   USELIST_CODE_BB = 2       // BB: [index..., bb-id]
568 };
569 
570 enum AttributeKindCodes {
571   // = 0 is unused
572   ATTR_KIND_ALIGNMENT = 1,
573   ATTR_KIND_ALWAYS_INLINE = 2,
574   ATTR_KIND_BY_VAL = 3,
575   ATTR_KIND_INLINE_HINT = 4,
576   ATTR_KIND_IN_REG = 5,
577   ATTR_KIND_MIN_SIZE = 6,
578   ATTR_KIND_NAKED = 7,
579   ATTR_KIND_NEST = 8,
580   ATTR_KIND_NO_ALIAS = 9,
581   ATTR_KIND_NO_BUILTIN = 10,
582   ATTR_KIND_NO_CAPTURE = 11,
583   ATTR_KIND_NO_DUPLICATE = 12,
584   ATTR_KIND_NO_IMPLICIT_FLOAT = 13,
585   ATTR_KIND_NO_INLINE = 14,
586   ATTR_KIND_NON_LAZY_BIND = 15,
587   ATTR_KIND_NO_RED_ZONE = 16,
588   ATTR_KIND_NO_RETURN = 17,
589   ATTR_KIND_NO_UNWIND = 18,
590   ATTR_KIND_OPTIMIZE_FOR_SIZE = 19,
591   ATTR_KIND_READ_NONE = 20,
592   ATTR_KIND_READ_ONLY = 21,
593   ATTR_KIND_RETURNED = 22,
594   ATTR_KIND_RETURNS_TWICE = 23,
595   ATTR_KIND_S_EXT = 24,
596   ATTR_KIND_STACK_ALIGNMENT = 25,
597   ATTR_KIND_STACK_PROTECT = 26,
598   ATTR_KIND_STACK_PROTECT_REQ = 27,
599   ATTR_KIND_STACK_PROTECT_STRONG = 28,
600   ATTR_KIND_STRUCT_RET = 29,
601   ATTR_KIND_SANITIZE_ADDRESS = 30,
602   ATTR_KIND_SANITIZE_THREAD = 31,
603   ATTR_KIND_SANITIZE_MEMORY = 32,
604   ATTR_KIND_UW_TABLE = 33,
605   ATTR_KIND_Z_EXT = 34,
606   ATTR_KIND_BUILTIN = 35,
607   ATTR_KIND_COLD = 36,
608   ATTR_KIND_OPTIMIZE_NONE = 37,
609   ATTR_KIND_IN_ALLOCA = 38,
610   ATTR_KIND_NON_NULL = 39,
611   ATTR_KIND_JUMP_TABLE = 40,
612   ATTR_KIND_DEREFERENCEABLE = 41,
613   ATTR_KIND_DEREFERENCEABLE_OR_NULL = 42,
614   ATTR_KIND_CONVERGENT = 43,
615   ATTR_KIND_SAFESTACK = 44,
616   ATTR_KIND_ARGMEMONLY = 45,
617   ATTR_KIND_SWIFT_SELF = 46,
618   ATTR_KIND_SWIFT_ERROR = 47,
619   ATTR_KIND_NO_RECURSE = 48,
620   ATTR_KIND_INACCESSIBLEMEM_ONLY = 49,
621   ATTR_KIND_INACCESSIBLEMEM_OR_ARGMEMONLY = 50,
622   ATTR_KIND_ALLOC_SIZE = 51,
623   ATTR_KIND_WRITEONLY = 52,
624   ATTR_KIND_SPECULATABLE = 53,
625   ATTR_KIND_STRICT_FP = 54,
626   ATTR_KIND_SANITIZE_HWADDRESS = 55,
627   ATTR_KIND_NOCF_CHECK = 56,
628   ATTR_KIND_OPT_FOR_FUZZING = 57,
629   ATTR_KIND_SHADOWCALLSTACK = 58,
630   ATTR_KIND_SPECULATIVE_LOAD_HARDENING = 59,
631   ATTR_KIND_IMMARG = 60,
632   ATTR_KIND_WILLRETURN = 61,
633   ATTR_KIND_NOFREE = 62,
634   ATTR_KIND_NOSYNC = 63,
635   ATTR_KIND_SANITIZE_MEMTAG = 64,
636 };
637 
638 enum ComdatSelectionKindCodes {
639   COMDAT_SELECTION_KIND_ANY = 1,
640   COMDAT_SELECTION_KIND_EXACT_MATCH = 2,
641   COMDAT_SELECTION_KIND_LARGEST = 3,
642   COMDAT_SELECTION_KIND_NO_DUPLICATES = 4,
643   COMDAT_SELECTION_KIND_SAME_SIZE = 5,
644 };
645 
646 enum StrtabCodes {
647   STRTAB_BLOB = 1,
648 };
649 
650 enum SymtabCodes {
651   SYMTAB_BLOB = 1,
652 };
653 
654 } // End bitc namespace
655 } // End llvm namespace
656 
657 #endif
658