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llvm-6502/include/llvm/Bitcode/LLVMBitCodes.h
Eli Friedman ff03048c13 LangRef and basic memory-representation/reading/writing for 'cmpxchg' and 
'atomicrmw' instructions, which allow representing all the current atomic
rmw intrinsics.

The allowed operands for these instructions are heavily restricted at the
moment; we can probably loosen it a bit, but supporting general
first-class types (where it makes sense) might get a bit complicated,
given how SelectionDAG works.

As an initial cut, these operations do not support specifying an alignment,
but it would be possible to add if we think it's useful. Specifying an
alignment lower than the natural alignment would be essentially
impossible to support on anything other than x86, but specifying a greater
alignment would be possible.  I can't think of any useful optimizations which
would use that information, but maybe someone else has ideas.

Optimizer/codegen support coming soon.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136404 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28 21:48:00 +00:00

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//===- LLVMBitCodes.h - Enum values for the LLVM bitcode format -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This header defines Bitcode enum values for LLVM IR bitcode files.
//
// The enum values defined in this file should be considered permanent. If
// new features are added, they should have values added at the end of the
// respective lists.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_BITCODE_LLVMBITCODES_H
#define LLVM_BITCODE_LLVMBITCODES_H
#include "llvm/Bitcode/BitCodes.h"
namespace llvm {
namespace bitc {
// The only top-level block type defined is for a module.
enum BlockIDs {
// Blocks
MODULE_BLOCK_ID = FIRST_APPLICATION_BLOCKID,
// Module sub-block id's.
PARAMATTR_BLOCK_ID,
/// TYPE_BLOCK_ID_OLD - This is the type descriptor block in LLVM 2.9 and
/// earlier, replaced with TYPE_BLOCK_ID2. FIXME: Remove in LLVM 3.1.
TYPE_BLOCK_ID_OLD,
CONSTANTS_BLOCK_ID,
FUNCTION_BLOCK_ID,
/// TYPE_SYMTAB_BLOCK_ID_OLD - This type descriptor is from LLVM 2.9 and
/// earlier bitcode files. FIXME: Remove in LLVM 3.1
TYPE_SYMTAB_BLOCK_ID_OLD,
VALUE_SYMTAB_BLOCK_ID,
METADATA_BLOCK_ID,
METADATA_ATTACHMENT_ID,
TYPE_BLOCK_ID_NEW
};
/// MODULE blocks have a number of optional fields and subblocks.
enum ModuleCodes {
MODULE_CODE_VERSION = 1, // VERSION: [version#]
MODULE_CODE_TRIPLE = 2, // TRIPLE: [strchr x N]
MODULE_CODE_DATALAYOUT = 3, // DATALAYOUT: [strchr x N]
MODULE_CODE_ASM = 4, // ASM: [strchr x N]
MODULE_CODE_SECTIONNAME = 5, // SECTIONNAME: [strchr x N]
MODULE_CODE_DEPLIB = 6, // DEPLIB: [strchr x N]
// GLOBALVAR: [pointer type, isconst, initid,
// linkage, alignment, section, visibility, threadlocal]
MODULE_CODE_GLOBALVAR = 7,
// FUNCTION: [type, callingconv, isproto, linkage, paramattrs, alignment,
// section, visibility]
MODULE_CODE_FUNCTION = 8,
// ALIAS: [alias type, aliasee val#, linkage]
MODULE_CODE_ALIAS = 9,
/// MODULE_CODE_PURGEVALS: [numvals]
MODULE_CODE_PURGEVALS = 10,
MODULE_CODE_GCNAME = 11 // GCNAME: [strchr x N]
};
/// PARAMATTR blocks have code for defining a parameter attribute set.
enum AttributeCodes {
PARAMATTR_CODE_ENTRY = 1 // ENTRY: [paramidx0, attr0, paramidx1, attr1...]
};
/// TYPE blocks have codes for each type primitive they use.
enum TypeCodes {
TYPE_CODE_NUMENTRY = 1, // NUMENTRY: [numentries]
// Type Codes
TYPE_CODE_VOID = 2, // VOID
TYPE_CODE_FLOAT = 3, // FLOAT
TYPE_CODE_DOUBLE = 4, // DOUBLE
TYPE_CODE_LABEL = 5, // LABEL
TYPE_CODE_OPAQUE = 6, // OPAQUE
TYPE_CODE_INTEGER = 7, // INTEGER: [width]
TYPE_CODE_POINTER = 8, // POINTER: [pointee type]
TYPE_CODE_FUNCTION = 9, // FUNCTION: [vararg, retty, paramty x N]
// FIXME: This is the encoding used for structs in LLVM 2.9 and earlier.
// REMOVE this in LLVM 3.1
TYPE_CODE_STRUCT_OLD = 10, // STRUCT: [ispacked, eltty x N]
TYPE_CODE_ARRAY = 11, // ARRAY: [numelts, eltty]
TYPE_CODE_VECTOR = 12, // VECTOR: [numelts, eltty]
// These are not with the other floating point types because they're
// a late addition, and putting them in the right place breaks
// binary compatibility.
TYPE_CODE_X86_FP80 = 13, // X86 LONG DOUBLE
TYPE_CODE_FP128 = 14, // LONG DOUBLE (112 bit mantissa)
TYPE_CODE_PPC_FP128= 15, // PPC LONG DOUBLE (2 doubles)
TYPE_CODE_METADATA = 16, // METADATA
TYPE_CODE_X86_MMX = 17, // X86 MMX
TYPE_CODE_STRUCT_ANON = 18, // STRUCT_ANON: [ispacked, eltty x N]
TYPE_CODE_STRUCT_NAME = 19, // STRUCT_NAME: [strchr x N]
TYPE_CODE_STRUCT_NAMED = 20 // STRUCT_NAMED: [ispacked, eltty x N]
};
// The type symbol table only has one code (TST_ENTRY_CODE).
enum TypeSymtabCodes {
TST_CODE_ENTRY = 1 // TST_ENTRY: [typeid, namechar x N]
};
// The value symbol table only has one code (VST_ENTRY_CODE).
enum ValueSymtabCodes {
VST_CODE_ENTRY = 1, // VST_ENTRY: [valid, namechar x N]
VST_CODE_BBENTRY = 2 // VST_BBENTRY: [bbid, namechar x N]
};
enum MetadataCodes {
METADATA_STRING = 1, // MDSTRING: [values]
// 2 is unused.
// 3 is unused.
METADATA_NAME = 4, // STRING: [values]
// 5 is unused.
METADATA_KIND = 6, // [n x [id, name]]
// 7 is unused.
METADATA_NODE = 8, // NODE: [n x (type num, value num)]
METADATA_FN_NODE = 9, // FN_NODE: [n x (type num, value num)]
METADATA_NAMED_NODE = 10, // NAMED_NODE: [n x mdnodes]
METADATA_ATTACHMENT = 11 // [m x [value, [n x [id, mdnode]]]
};
// The constants block (CONSTANTS_BLOCK_ID) describes emission for each
// constant and maintains an implicit current type value.
enum ConstantsCodes {
CST_CODE_SETTYPE = 1, // SETTYPE: [typeid]
CST_CODE_NULL = 2, // NULL
CST_CODE_UNDEF = 3, // UNDEF
CST_CODE_INTEGER = 4, // INTEGER: [intval]
CST_CODE_WIDE_INTEGER = 5, // WIDE_INTEGER: [n x intval]
CST_CODE_FLOAT = 6, // FLOAT: [fpval]
CST_CODE_AGGREGATE = 7, // AGGREGATE: [n x value number]
CST_CODE_STRING = 8, // STRING: [values]
CST_CODE_CSTRING = 9, // CSTRING: [values]
CST_CODE_CE_BINOP = 10, // CE_BINOP: [opcode, opval, opval]
CST_CODE_CE_CAST = 11, // CE_CAST: [opcode, opty, opval]
CST_CODE_CE_GEP = 12, // CE_GEP: [n x operands]
CST_CODE_CE_SELECT = 13, // CE_SELECT: [opval, opval, opval]
CST_CODE_CE_EXTRACTELT = 14, // CE_EXTRACTELT: [opty, opval, opval]
CST_CODE_CE_INSERTELT = 15, // CE_INSERTELT: [opval, opval, opval]
CST_CODE_CE_SHUFFLEVEC = 16, // CE_SHUFFLEVEC: [opval, opval, opval]
CST_CODE_CE_CMP = 17, // CE_CMP: [opty, opval, opval, pred]
CST_CODE_INLINEASM = 18, // INLINEASM: [sideeffect,asmstr,conststr]
CST_CODE_CE_SHUFVEC_EX = 19, // SHUFVEC_EX: [opty, opval, opval, opval]
CST_CODE_CE_INBOUNDS_GEP = 20,// INBOUNDS_GEP: [n x operands]
CST_CODE_BLOCKADDRESS = 21 // CST_CODE_BLOCKADDRESS [fnty, fnval, bb#]
};
/// CastOpcodes - These are values used in the bitcode files to encode which
/// cast a CST_CODE_CE_CAST or a XXX refers to. The values of these enums
/// have no fixed relation to the LLVM IR enum values. Changing these will
/// break compatibility with old files.
enum CastOpcodes {
CAST_TRUNC = 0,
CAST_ZEXT = 1,
CAST_SEXT = 2,
CAST_FPTOUI = 3,
CAST_FPTOSI = 4,
CAST_UITOFP = 5,
CAST_SITOFP = 6,
CAST_FPTRUNC = 7,
CAST_FPEXT = 8,
CAST_PTRTOINT = 9,
CAST_INTTOPTR = 10,
CAST_BITCAST = 11
};
/// BinaryOpcodes - These are values used in the bitcode files to encode which
/// binop a CST_CODE_CE_BINOP or a XXX refers to. The values of these enums
/// have no fixed relation to the LLVM IR enum values. Changing these will
/// break compatibility with old files.
enum BinaryOpcodes {
BINOP_ADD = 0,
BINOP_SUB = 1,
BINOP_MUL = 2,
BINOP_UDIV = 3,
BINOP_SDIV = 4, // overloaded for FP
BINOP_UREM = 5,
BINOP_SREM = 6, // overloaded for FP
BINOP_SHL = 7,
BINOP_LSHR = 8,
BINOP_ASHR = 9,
BINOP_AND = 10,
BINOP_OR = 11,
BINOP_XOR = 12
};
/// These are values used in the bitcode files to encode AtomicRMW operations.
/// The values of these enums have no fixed relation to the LLVM IR enum
/// values. Changing these will break compatibility with old files.
enum RMWOperations {
RMW_XCHG = 0,
RMW_ADD = 1,
RMW_SUB = 2,
RMW_AND = 3,
RMW_NAND = 4,
RMW_OR = 5,
RMW_XOR = 6,
RMW_MAX = 7,
RMW_MIN = 8,
RMW_UMAX = 9,
RMW_UMIN = 10
};
/// OverflowingBinaryOperatorOptionalFlags - Flags for serializing
/// OverflowingBinaryOperator's SubclassOptionalData contents.
enum OverflowingBinaryOperatorOptionalFlags {
OBO_NO_UNSIGNED_WRAP = 0,
OBO_NO_SIGNED_WRAP = 1
};
/// PossiblyExactOperatorOptionalFlags - Flags for serializing
/// PossiblyExactOperator's SubclassOptionalData contents.
enum PossiblyExactOperatorOptionalFlags {
PEO_EXACT = 0
};
/// Encoded AtomicOrdering values.
enum AtomicOrderingCodes {
ORDERING_NOTATOMIC = 0,
ORDERING_UNORDERED = 1,
ORDERING_MONOTONIC = 2,
ORDERING_ACQUIRE = 3,
ORDERING_RELEASE = 4,
ORDERING_ACQREL = 5,
ORDERING_SEQCST = 6
};
/// Encoded SynchronizationScope values.
enum AtomicSynchScopeCodes {
SYNCHSCOPE_SINGLETHREAD = 0,
SYNCHSCOPE_CROSSTHREAD = 1
};
// The function body block (FUNCTION_BLOCK_ID) describes function bodies. It
// can contain a constant block (CONSTANTS_BLOCK_ID).
enum FunctionCodes {
FUNC_CODE_DECLAREBLOCKS = 1, // DECLAREBLOCKS: [n]
FUNC_CODE_INST_BINOP = 2, // BINOP: [opcode, ty, opval, opval]
FUNC_CODE_INST_CAST = 3, // CAST: [opcode, ty, opty, opval]
FUNC_CODE_INST_GEP = 4, // GEP: [n x operands]
FUNC_CODE_INST_SELECT = 5, // SELECT: [ty, opval, opval, opval]
FUNC_CODE_INST_EXTRACTELT = 6, // EXTRACTELT: [opty, opval, opval]
FUNC_CODE_INST_INSERTELT = 7, // INSERTELT: [ty, opval, opval, opval]
FUNC_CODE_INST_SHUFFLEVEC = 8, // SHUFFLEVEC: [ty, opval, opval, opval]
FUNC_CODE_INST_CMP = 9, // CMP: [opty, opval, opval, pred]
FUNC_CODE_INST_RET = 10, // RET: [opty,opval<both optional>]
FUNC_CODE_INST_BR = 11, // BR: [bb#, bb#, cond] or [bb#]
FUNC_CODE_INST_SWITCH = 12, // SWITCH: [opty, op0, op1, ...]
FUNC_CODE_INST_INVOKE = 13, // INVOKE: [attr, fnty, op0,op1, ...]
FUNC_CODE_INST_UNWIND = 14, // UNWIND
FUNC_CODE_INST_UNREACHABLE = 15, // UNREACHABLE
FUNC_CODE_INST_PHI = 16, // PHI: [ty, val0,bb0, ...]
FUNC_CODE_INST_RESUME = 17, // RESUME: [opval]
// 18 is unused.
FUNC_CODE_INST_ALLOCA = 19, // ALLOCA: [instty, op, align]
FUNC_CODE_INST_LOAD = 20, // LOAD: [opty, op, align, vol]
// 21 is unused.
// 22 is unused.
FUNC_CODE_INST_VAARG = 23, // VAARG: [valistty, valist, instty]
// This store code encodes the pointer type, rather than the value type
// this is so information only available in the pointer type (e.g. address
// spaces) is retained.
FUNC_CODE_INST_STORE = 24, // STORE: [ptrty,ptr,val, align, vol]
// 25 is unused.
FUNC_CODE_INST_EXTRACTVAL = 26, // EXTRACTVAL: [n x operands]
FUNC_CODE_INST_INSERTVAL = 27, // INSERTVAL: [n x operands]
// fcmp/icmp returning Int1TY or vector of Int1Ty. Same as CMP, exists to
// support legacy vicmp/vfcmp instructions.
FUNC_CODE_INST_CMP2 = 28, // CMP2: [opty, opval, opval, pred]
// new select on i1 or [N x i1]
FUNC_CODE_INST_VSELECT = 29, // VSELECT: [ty,opval,opval,predty,pred]
FUNC_CODE_INST_INBOUNDS_GEP= 30, // INBOUNDS_GEP: [n x operands]
FUNC_CODE_INST_INDIRECTBR = 31, // INDIRECTBR: [opty, op0, op1, ...]
// 32 is unused.
FUNC_CODE_DEBUG_LOC_AGAIN = 33, // DEBUG_LOC_AGAIN
FUNC_CODE_INST_CALL = 34, // CALL: [attr, fnty, fnid, args...]
FUNC_CODE_DEBUG_LOC = 35, // DEBUG_LOC: [Line,Col,ScopeVal, IAVal]
FUNC_CODE_INST_FENCE = 36, // FENCE: [ordering, synchscope]
FUNC_CODE_INST_LANDINGPAD = 37, // LANDINGPAD: [ty,val,val,num,id0,val0...]
FUNC_CODE_INST_CMPXCHG = 38, // CMPXCHG: [ptrty,ptr,cmp,new, align, vol,
// ordering, synchscope]
FUNC_CODE_INST_ATOMICRMW = 39 // ATOMICRMW: [ptrty,ptr,val, operation,
// align, vol,
// ordering, synchscope]
};
} // End bitc namespace
} // End llvm namespace
#endif
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