- 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/Mips/MipsInstrInfo.cpp

@@ -15,10 +15,11 @@
 #include "MipsTargetMachine.h"
 #include "MipsMachineFunction.h"
 #include "InstPrinter/MipsInstPrinter.h"
-#include "llvm/ADT/STLExtras.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/Target/TargetRegistry.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/ADT/STLExtras.h"
 
 #define GET_INSTRINFO_CTOR
 #define GET_INSTRINFO_MC_DESC
@@ -459,3 +460,13 @@ unsigned MipsInstrInfo::getGlobalBaseReg(MachineFunction *MF) const {
   MipsFI->setGlobalBaseReg(GlobalBaseReg);
   return GlobalBaseReg;
 }
+
+MCInstrInfo *createMipsMCInstrInfo() {
+  MCInstrInfo *X = new MCInstrInfo();
+  InitMipsMCInstrInfo(X);
+  return X;
+}
+
+extern "C" void LLVMInitializeMipsMCInstrInfo() {
+  TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
+}