Simplify references to command line flags.

src/IceInstX86BaseImpl.h

 //===- subzero/src/IceInstX86BaseImpl.h - Generic X86 instructions -*- C++ -*=//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 350 matching lines @@
 InstImpl<TraitsType>::InstX86Xchg::InstX86Xchg(Cfg *Func, Operand *Dest,
                                                Variable *Source)
     : InstX86Base(Func, InstX86Base::Xchg, 2, llvm::dyn_cast<Variable>(Dest)) {
   this->addSource(Dest);
   this->addSource(Source);
 }
 
 template <typename TraitsType>
 InstImpl<TraitsType>::InstX86IacaStart::InstX86IacaStart(Cfg *Func)
     : InstX86Base(Func, InstX86Base::IacaStart, 0, nullptr) {
-  assert(Func->getContext()->getFlags().getAllowIacaMarks());
+  assert(getFlags().getAllowIacaMarks());
 }
 
 template <typename TraitsType>
 InstImpl<TraitsType>::InstX86IacaEnd::InstX86IacaEnd(Cfg *Func)
     : InstX86Base(Func, InstX86Base::IacaEnd, 0, nullptr) {
-  assert(Func->getContext()->getFlags().getAllowIacaMarks());
+  assert(getFlags().getAllowIacaMarks());
 }
 
 // ======================== Dump routines ======================== //
 
 template <typename TraitsType>
 void InstImpl<TraitsType>::InstX86Base::dump(const Cfg *Func) const {
   if (!BuildDefs::dump())
     return;
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "[" << Traits::TargetName << "] ";
@@ skipping 2509 matching lines @@
     return;
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "IACA_END";
 }
 
 } // end of namespace X86NAMESPACE
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTX86BASEIMPL_H