Subzero: Allow per-method controls.

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 163 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 (getFlags().getOptLevel()) {
+    switch (Func->getOptLevel()) {
     case Opt_m1:
       translateOm1();
       break;
     case Opt_0:
       translateO0();
       break;
     case Opt_1:
       translateO1();
       break;
     case Opt_2:
@@ skipping 423 matching lines @@
   virtual void lower() {}
 
 protected:
   explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
   GlobalContext *Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERING_H