PNaCl: Add support for GCC/LLVM vector extensions

include/llvm/Bitcode/NaCl/NaClLLVMBitCodes.h

 //===- NaClLLVMBitCodes.h ---------------------------------------*- C++ -*-===//
 //     Enum values for the NaCl bitcode wire format
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ skipping 79 matching lines @@
     TYPE_CODE_LABEL    =  5,    // LABEL
     TYPE_CODE_OPAQUE   =  6,    // Not used in PNaCl.
     TYPE_CODE_INTEGER  =  7,    // INTEGER: [width]
     TYPE_CODE_POINTER  =  8,    // POINTER: [pointee type]
 
     TYPE_CODE_FUNCTION_OLD = 9, // Not used in PNaCl.
 
     TYPE_CODE_HALF     =  10,   // Not used in PNaCl.
 
     TYPE_CODE_ARRAY    = 11,    // Not used in PNaCl.
-    TYPE_CODE_VECTOR   = 12,    // Not used in PNaCl.
+    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,    // Not used in PNaCl.
     TYPE_CODE_FP128    = 14,    // Not used in PNaCl.
     TYPE_CODE_PPC_FP128= 15,    // Not used in PNaCl.
 
     TYPE_CODE_METADATA = 16,    // Not used in PNaCl.
 
@@ skipping 198 matching lines @@
     FUNC_CODE_DECLAREBLOCKS    =  1, // DECLAREBLOCKS: [n]
 
     FUNC_CODE_INST_BINOP       =  2, // BINOP:      [opval, opval, opcode]
                                      // Note: because old PNaCl bitcode files
                                      // may contain flags (which we now ignore),
                                      // the reader must also support:
                                      // BINOP: [opval, opval, opcode, flags]
     FUNC_CODE_INST_CAST        =  3, // CAST:       [opval, destty, castopc]
     FUNC_CODE_INST_GEP         =  4, // Not used in PNaCl.
     FUNC_CODE_INST_SELECT      =  5, // Not used in PNaCl. Replaced by VSELECT.
-    FUNC_CODE_INST_EXTRACTELT  =  6, // Not used in PNaCl.
-    FUNC_CODE_INST_INSERTELT   =  7, // Not used in PNaCl.
+    FUNC_CODE_INST_EXTRACTELT  =  6, // EXTRACTELT: [opval, opval]
+    FUNC_CODE_INST_INSERTELT   =  7, // INSERTELT:  [opval, opval, opval]
     FUNC_CODE_INST_SHUFFLEVEC  =  8, // Not used in PNaCl.
     FUNC_CODE_INST_CMP         =  9, // Not used in PNaCl. Replaced by CMP2.
     FUNC_CODE_INST_RET         = 10, // RET:        [opval<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, // Not used in PNaCl.
     // 14 is unused.
     FUNC_CODE_INST_UNREACHABLE = 15, // UNREACHABLE
 
     FUNC_CODE_INST_PHI         = 16, // PHI:        [ty, val0,bb0, ...]
@@ skipping 29 matching lines @@
     FUNC_CODE_INST_LOADATOMIC  = 41, // Not used in PNaCl.
     FUNC_CODE_INST_STOREATOMIC = 42, // Not used in PNaCl.
     FUNC_CODE_INST_FORWARDTYPEREF = 43, // TYPE: [opval, ty]
     // CALL_INDIRECT: [cc, fnid, returnty, args...]
     FUNC_CODE_INST_CALL_INDIRECT = 44
   };
 } // End naclbitc namespace
 } // End llvm namespace
 
 #endif