eliminate code related to --no-ir-gen

src/IceConverter.cpp

 //===- subzero/src/IceConverter.cpp - Converts LLVM to Ice  ---------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 71 matching lines @@
   LLVM2ICEFunctionConverter() = delete;
   LLVM2ICEFunctionConverter(const LLVM2ICEFunctionConverter &) = delete;
   LLVM2ICEFunctionConverter &
   operator=(const LLVM2ICEFunctionConverter &) = delete;
 
 public:
   explicit LLVM2ICEFunctionConverter(Ice::Converter &Converter)
       : LLVM2ICEConverter(Converter), Func(nullptr) {}
 
   void convertFunction(const Function *F) {
-    if (Ctx->isIRGenerationDisabled())
-      return;
     Func = Ice::Cfg::create(Ctx, Converter.getNextSequenceNumber());
     Ice::Cfg::setCurrentCfg(Func.get());
 
     VarMap.clear();
     NodeMap.clear();
     Func->setFunctionName(F->getName());
     Func->setReturnType(convertToIceType(F->getReturnType()));
     Func->setInternal(F->hasInternalLinkage());
     Ice::TimerMarker T(Ice::TimerStack::TT_llvmConvert, Func.get());
 
@@ skipping 814 matching lines @@
       Ctx->pushTimer(TimerID, StackID);
     }
     LLVM2ICEFunctionConverter FunctionConverter(*this);
     FunctionConverter.convertFunction(&I);
     if (TimeThisFunction)
       Ctx->popTimer(TimerID, StackID);
   }
 }
 
 } // end of namespace Ice