- 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.

llvm-svn: 134884

1 files changed, 12 insertions, 1 deletions

diff --git a/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp b/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp
index c105759ff70..6be75a1ea1a 100644
--- a/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp
+++ b/llvm/lib/Target/Alpha/AlphaInstrInfo.cpp
@@ -14,10 +14,11 @@
 #include "Alpha.h"
 #include "AlphaInstrInfo.h"
 #include "AlphaMachineFunctionInfo.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/Target/TargetRegistry.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/Support/ErrorHandling.h"
 
 #define GET_INSTRINFO_MC_DESC
@@ -381,3 +382,13 @@ unsigned AlphaInstrInfo::getGlobalRetAddr(MachineFunction *MF) const {
   AlphaFI->setGlobalRetAddr(GlobalRetAddr);
   return GlobalRetAddr;
 }
+
+MCInstrInfo *createAlphaMCInstrInfo() {
+  MCInstrInfo *X = new MCInstrInfo();
+  InitAlphaMCInstrInfo(X);
+  return X;
+}
+
+extern "C" void LLVMInitializeAlphaMCInstrInfo() {
+  TargetRegistry::RegisterMCInstrInfo(TheAlphaTarget, createAlphaMCInstrInfo);
+}