- Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo

and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134884 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/MCTargetDesc/X86MCTargetDesc.cpp

@@ -127,7 +127,7 @@ MCSubtargetInfo *X86_MC::createX86MCSubtargetInfo(StringRef TT, StringRef CPU,
   }
 
   MCSubtargetInfo *X = new MCSubtargetInfo();
-  InitX86MCSubtargetInfo(X, CPUName, ArchFS);
+  InitX86MCSubtargetInfo(X, TT, CPUName, ArchFS);
   return X;
 }