Rebased PNaCl localmods in LLVM to 223109

include/llvm/CodeGen/MachineInstrBuilder.h

 //===-- CodeGen/MachineInstBuilder.h - Simplify creation of MIs -*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file exposes a function named BuildMI, which is useful for dramatically
@@ skipping 307 matching lines @@
                                    const MCInstrDesc &MCID) {
   if (I->isInsideBundle()) {
     MachineBasicBlock::instr_iterator MII = I;
     return BuildMI(BB, MII, DL, MCID);
   }
 
   MachineBasicBlock::iterator MII = I;
   return BuildMI(BB, MII, DL, MCID);
 }
 
+// @LOCALMOD-BEGIN
+/// BuildMI - This version of the builder inserts the newly-built
+/// instruction before the given position in the given MachineBasicBlock,
+/// does NOT take a destination register, and does not add implicit operands.
+///
+inline MachineInstrBuilder BuildMI_NoImp(MachineBasicBlock &BB,
+                                         MachineBasicBlock::iterator I,
+                                         DebugLoc DL,
+                                         const MCInstrDesc &MCID) {
+  MachineInstr *MI = BB.getParent()->CreateMachineInstr(MCID, DL, true);
+  BB.insert(I, MI);
+  return MachineInstrBuilder(*BB.getParent(), MI);
+}
+// @LOCALMOD-END
+
 /// BuildMI - This version of the builder inserts the newly-built
 /// instruction at the end of the given MachineBasicBlock, and does NOT take a
 /// destination register.
 ///
 inline MachineInstrBuilder BuildMI(MachineBasicBlock *BB,
                                    DebugLoc DL,
                                    const MCInstrDesc &MCID) {
   return BuildMI(*BB, BB->end(), DL, MCID);
 }
 
@@ skipping 157 matching lines @@
   /// Insert MI into MBB by appending it to the instructions in the bundle.
   /// MI will become the last instruction in the bundle.
   MIBundleBuilder &append(MachineInstr *MI) {
     return insert(end(), MI);
   }
 };
 
 } // End llvm namespace
 
 #endif