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	This implements the 'landingpad' instruction. It's used to indicate that a basic block is a landing pad. There are several restrictions on its use (see LangRef.html for more detail). These restrictions allow the exception handling code to gather the information it needs in a much more sane way. This patch has the definition, implementation, C interface, parsing, and bitcode support in it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			201 lines
		
	
	
		
			6.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			201 lines
		
	
	
		
			6.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===-- llvm/Instruction.def - File that describes Instructions -*- C++ -*-===//
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| // 
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| // 
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| //===----------------------------------------------------------------------===//
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| //
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| // This file contains descriptions of the various LLVM instructions.  This is
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| // used as a central place for enumerating the different instructions and 
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| // should eventually be the place to put comments about the instructions.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| // NOTE: NO INCLUDE GUARD DESIRED!
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| 
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| // Provide definitions of macros so that users of this file do not have to 
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| // define everything to use it...
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| //
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| #ifndef FIRST_TERM_INST
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| #define FIRST_TERM_INST(num)
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| #endif
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| #ifndef HANDLE_TERM_INST
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| #ifndef HANDLE_INST
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| #define HANDLE_TERM_INST(num, opcode, Class)
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| #else
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| #define HANDLE_TERM_INST(num, opcode, Class) HANDLE_INST(num, opcode, Class)
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| #endif
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| #endif
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| #ifndef LAST_TERM_INST
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| #define LAST_TERM_INST(num)
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| #endif
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| 
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| #ifndef FIRST_BINARY_INST
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| #define FIRST_BINARY_INST(num)
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| #endif
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| #ifndef HANDLE_BINARY_INST
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| #ifndef HANDLE_INST
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| #define HANDLE_BINARY_INST(num, opcode, instclass)
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| #else
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| #define HANDLE_BINARY_INST(num, opcode, Class) HANDLE_INST(num, opcode, Class)
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| #endif
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| #endif
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| #ifndef LAST_BINARY_INST
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| #define LAST_BINARY_INST(num)
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| #endif
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| 
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| #ifndef FIRST_MEMORY_INST
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| #define FIRST_MEMORY_INST(num)
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| #endif
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| #ifndef HANDLE_MEMORY_INST
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| #ifndef HANDLE_INST
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| #define HANDLE_MEMORY_INST(num, opcode, Class)
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| #else
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| #define HANDLE_MEMORY_INST(num, opcode, Class) HANDLE_INST(num, opcode, Class)
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| #endif
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| #endif
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| #ifndef LAST_MEMORY_INST
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| #define LAST_MEMORY_INST(num)
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| #endif
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| 
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| #ifndef FIRST_CAST_INST
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| #define FIRST_CAST_INST(num)
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| #endif
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| #ifndef HANDLE_CAST_INST
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| #ifndef HANDLE_INST
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| #define HANDLE_CAST_INST(num, opcode, Class)
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| #else
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| #define HANDLE_CAST_INST(num, opcode, Class) HANDLE_INST(num, opcode, Class)
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| #endif
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| #endif
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| #ifndef LAST_CAST_INST
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| #define LAST_CAST_INST(num)
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| #endif
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| 
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| #ifndef FIRST_OTHER_INST
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| #define FIRST_OTHER_INST(num)
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| #endif
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| #ifndef HANDLE_OTHER_INST
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| #ifndef HANDLE_INST
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| #define HANDLE_OTHER_INST(num, opcode, Class)
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| #else
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| #define HANDLE_OTHER_INST(num, opcode, Class) HANDLE_INST(num, opcode, Class)
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| #endif
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| #endif
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| #ifndef LAST_OTHER_INST
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| #define LAST_OTHER_INST(num)
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| #endif
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| 
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| 
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| // Terminator Instructions - These instructions are used to terminate a basic
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| // block of the program.   Every basic block must end with one of these
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| // instructions for it to be a well formed basic block.
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| //
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|  FIRST_TERM_INST  ( 1)
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| HANDLE_TERM_INST  ( 1, Ret        , ReturnInst)
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| HANDLE_TERM_INST  ( 2, Br         , BranchInst)
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| HANDLE_TERM_INST  ( 3, Switch     , SwitchInst)
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| HANDLE_TERM_INST  ( 4, IndirectBr , IndirectBrInst)
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| HANDLE_TERM_INST  ( 5, Invoke     , InvokeInst)
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| HANDLE_TERM_INST  ( 6, Unwind     , UnwindInst)
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| HANDLE_TERM_INST  ( 7, Resume     , ResumeInst)
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| HANDLE_TERM_INST  ( 8, Unreachable, UnreachableInst)
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|   LAST_TERM_INST  ( 8)
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| 
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| // Standard binary operators...
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|  FIRST_BINARY_INST( 9)
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| HANDLE_BINARY_INST( 9, Add  , BinaryOperator)
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| HANDLE_BINARY_INST(10, FAdd , BinaryOperator)
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| HANDLE_BINARY_INST(11, Sub  , BinaryOperator)
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| HANDLE_BINARY_INST(12, FSub , BinaryOperator)
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| HANDLE_BINARY_INST(13, Mul  , BinaryOperator)
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| HANDLE_BINARY_INST(14, FMul , BinaryOperator)
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| HANDLE_BINARY_INST(15, UDiv , BinaryOperator)
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| HANDLE_BINARY_INST(16, SDiv , BinaryOperator)
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| HANDLE_BINARY_INST(17, FDiv , BinaryOperator)
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| HANDLE_BINARY_INST(18, URem , BinaryOperator)
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| HANDLE_BINARY_INST(19, SRem , BinaryOperator)
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| HANDLE_BINARY_INST(20, FRem , BinaryOperator)
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| 
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| // Logical operators (integer operands)
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| HANDLE_BINARY_INST(21, Shl  , BinaryOperator) // Shift left  (logical)
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| HANDLE_BINARY_INST(22, LShr , BinaryOperator) // Shift right (logical)
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| HANDLE_BINARY_INST(23, AShr , BinaryOperator) // Shift right (arithmetic)
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| HANDLE_BINARY_INST(24, And  , BinaryOperator)
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| HANDLE_BINARY_INST(25, Or   , BinaryOperator)
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| HANDLE_BINARY_INST(26, Xor  , BinaryOperator)
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|   LAST_BINARY_INST(26)
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| 
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| // Memory operators...
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|  FIRST_MEMORY_INST(27)
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| HANDLE_MEMORY_INST(27, Alloca, AllocaInst)  // Stack management
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| HANDLE_MEMORY_INST(28, Load  , LoadInst  )  // Memory manipulation instrs
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| HANDLE_MEMORY_INST(29, Store , StoreInst )
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| HANDLE_MEMORY_INST(30, GetElementPtr, GetElementPtrInst)
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| HANDLE_MEMORY_INST(31, Fence , FenceInst )
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| HANDLE_MEMORY_INST(32, AtomicCmpXchg , AtomicCmpXchgInst )
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| HANDLE_MEMORY_INST(33, AtomicRMW , AtomicRMWInst )
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|   LAST_MEMORY_INST(33)
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| 
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| // Cast operators ...
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| // NOTE: The order matters here because CastInst::isEliminableCastPair 
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| // NOTE: (see Instructions.cpp) encodes a table based on this ordering.
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|  FIRST_CAST_INST(34)
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| HANDLE_CAST_INST(34, Trunc   , TruncInst   )  // Truncate integers
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| HANDLE_CAST_INST(35, ZExt    , ZExtInst    )  // Zero extend integers
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| HANDLE_CAST_INST(36, SExt    , SExtInst    )  // Sign extend integers
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| HANDLE_CAST_INST(37, FPToUI  , FPToUIInst  )  // floating point -> UInt
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| HANDLE_CAST_INST(38, FPToSI  , FPToSIInst  )  // floating point -> SInt
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| HANDLE_CAST_INST(39, UIToFP  , UIToFPInst  )  // UInt -> floating point
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| HANDLE_CAST_INST(40, SIToFP  , SIToFPInst  )  // SInt -> floating point
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| HANDLE_CAST_INST(41, FPTrunc , FPTruncInst )  // Truncate floating point
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| HANDLE_CAST_INST(42, FPExt   , FPExtInst   )  // Extend floating point
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| HANDLE_CAST_INST(43, PtrToInt, PtrToIntInst)  // Pointer -> Integer
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| HANDLE_CAST_INST(44, IntToPtr, IntToPtrInst)  // Integer -> Pointer
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| HANDLE_CAST_INST(45, BitCast , BitCastInst )  // Type cast
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|   LAST_CAST_INST(45)
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| 
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| // Other operators...
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|  FIRST_OTHER_INST(46)
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| HANDLE_OTHER_INST(46, ICmp   , ICmpInst   )  // Integer comparison instruction
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| HANDLE_OTHER_INST(47, FCmp   , FCmpInst   )  // Floating point comparison instr.
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| HANDLE_OTHER_INST(48, PHI    , PHINode    )  // PHI node instruction
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| HANDLE_OTHER_INST(49, Call   , CallInst   )  // Call a function
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| HANDLE_OTHER_INST(50, Select , SelectInst )  // select instruction
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| HANDLE_OTHER_INST(51, UserOp1, Instruction)  // May be used internally in a pass
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| HANDLE_OTHER_INST(52, UserOp2, Instruction)  // Internal to passes only
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| HANDLE_OTHER_INST(53, VAArg  , VAArgInst  )  // vaarg instruction
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| HANDLE_OTHER_INST(54, ExtractElement, ExtractElementInst)// extract from vector
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| HANDLE_OTHER_INST(55, InsertElement, InsertElementInst)  // insert into vector
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| HANDLE_OTHER_INST(56, ShuffleVector, ShuffleVectorInst)  // shuffle two vectors.
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| HANDLE_OTHER_INST(57, ExtractValue, ExtractValueInst)// extract from aggregate
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| HANDLE_OTHER_INST(58, InsertValue, InsertValueInst)  // insert into aggregate
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| HANDLE_OTHER_INST(59, LandingPad, LandingPadInst)  // Landing pad instruction.
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|   LAST_OTHER_INST(59)
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| 
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| #undef  FIRST_TERM_INST
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| #undef HANDLE_TERM_INST
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| #undef   LAST_TERM_INST
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| 
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| #undef  FIRST_BINARY_INST
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| #undef HANDLE_BINARY_INST
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| #undef   LAST_BINARY_INST
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| 
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| #undef  FIRST_MEMORY_INST
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| #undef HANDLE_MEMORY_INST
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| #undef   LAST_MEMORY_INST
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| 
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| #undef  FIRST_CAST_INST
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| #undef HANDLE_CAST_INST
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| #undef   LAST_CAST_INST
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| 
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| #undef  FIRST_OTHER_INST
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| #undef HANDLE_OTHER_INST
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| #undef   LAST_OTHER_INST
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| 
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| #ifdef HANDLE_INST
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| #undef HANDLE_INST
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| #endif
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