Subzero: Use a "known" version of clang-format.

src/IceTargetLowering.cpp

 //===- subzero/src/IceTargetLowering.cpp - Basic lowering implementation --===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the skeleton of the TargetLowering class,
@@ skipping 25 matching lines @@
 
 cl::opt<int> MaxNopsPerInstruction(
     "max-nops-per-instruction",
     cl::desc("Max number of nops to insert per instruction"), cl::init(1));
 
 cl::opt<int> NopProbabilityAsPercentage(
     "nop-insertion-percentage",
     cl::desc("Nop insertion probability as percentage"), cl::init(10));
 
 cl::opt<bool>
-CLRandomizeRegisterAllocation("randomize-regalloc",
-                              cl::desc("Randomize register allocation"),
-                              cl::init(false));
+    CLRandomizeRegisterAllocation("randomize-regalloc",
+                                  cl::desc("Randomize register allocation"),
+                                  cl::init(false));
 } // end of anonymous namespace
 
 void LoweringContext::init(CfgNode *N) {
   Node = N;
   End = getNode()->getInsts().end();
   rewind();
   advanceForward(Next);
 }
 
 void LoweringContext::rewind() {
@@ skipping 207 matching lines @@
   if (Target == Target_ARM64)
     return TargetGlobalARM64::create(Ctx);
 #endif
   llvm_unreachable("Unsupported target");
   return nullptr;
 }
 
 TargetGlobalLowering::~TargetGlobalLowering() {}
 
 } // end of namespace Ice