Simplify references to command line flags.

src/IceTargetLowering.h

 //===- subzero/src/IceTargetLowering.h - Lowering interface -----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 33 matching lines @@
       llvm_unreachable("Not yet implemented");                                 \
       abort();                                                                 \
     }                                                                          \
   } while (0)
 
 // UnimplementedLoweringError is similar in style to UnimplementedError.  Given
 // a TargetLowering object pointer and an Inst pointer, it adds appropriate
 // FakeDef and FakeUse instructions to try maintain liveness consistency.
 #define UnimplementedLoweringError(Target, Instr)                              \
   do {                                                                         \
-    if ((Target)->Ctx->getFlags().getSkipUnimplemented()) {                    \
+    if (getFlags().getSkipUnimplemented()) {                                   \
       (Target)->addFakeDefUses(Instr);                                         \
     } else {                                                                   \
       /* Use llvm_unreachable instead of report_fatal_error, which gives       \
          better stack traces. */                                               \
       llvm_unreachable(                                                        \
           (std::string("Not yet implemented: ") + Instr->getInstName())        \
               .c_str());                                                       \
       abort();                                                                 \
     }                                                                          \
   } while (0)
@@ skipping 109 matching lines @@
   // Each target must define a public static method:
   //   static void staticInit(GlobalContext *Ctx);
   static bool shouldBePooled(const class Constant *C);
 
   static std::unique_ptr<TargetLowering> createLowering(TargetArch Target,
                                                         Cfg *Func);
 
   virtual std::unique_ptr<Assembler> createAssembler() const = 0;
 
   void translate() {
-    switch (Ctx->getFlags().getOptLevel()) {
+    switch (getFlags().getOptLevel()) {
     case Opt_m1:
       translateOm1();
       break;
     case Opt_0:
       translateO0();
       break;
     case Opt_1:
       translateO1();
       break;
     case Opt_2:
@@ skipping 422 matching lines @@
   virtual void lower() {}
 
 protected:
   explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
   GlobalContext *Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERING_H