- 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

include/llvm/Target/TargetSelect.h

@@ -26,6 +26,10 @@ extern "C" {
 #define LLVM_TARGET(TargetName) void LLVMInitialize##TargetName##Target();
 #include "llvm/Config/Targets.def"
   
+#define LLVM_TARGET(TargetName) \
+  void LLVMInitialize##TargetName##MCInstrInfo();
+#include "llvm/Config/Targets.def"
+
 #define LLVM_TARGET(TargetName) \
   void LLVMInitialize##TargetName##MCSubtargetInfo();
 #include "llvm/Config/Targets.def"
@@ -68,6 +72,17 @@ namespace llvm {
 #include "llvm/Config/Targets.def"
   }
   
+  /// InitializeAllMCInstrInfos - The main program should call this function
+  /// if it wants access to all available instruction infos for targets that
+  /// LLVM is configured to support, to make them available via the
+  /// TargetRegistry.
+  ///
+  /// It is legal for a client to make multiple calls to this function.
+  inline void InitializeAllMCInstrInfos() {
+#define LLVM_TARGET(TargetName) LLVMInitialize##TargetName##MCInstrInfo();
+#include "llvm/Config/Targets.def"
+  }
+  
   /// InitializeAllMCSubtargetInfos - The main program should call this function
   /// if it wants access to all available subtarget infos for targets that LLVM
   /// is configured to support, to make them available via the TargetRegistry.