- 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, 6 insertions, 5 deletions

diff --git a/llvm/lib/Target/X86/X86.h b/llvm/lib/Target/X86/X86.h
index 1ffee86f92d..ec52dfb3e7d 100644
--- a/llvm/lib/Target/X86/X86.h
+++ b/llvm/lib/Target/X86/X86.h
@@ -23,10 +23,12 @@ namespace llvm {
 
 class FunctionPass;
 class JITCodeEmitter;
+class MachineCodeEmitter;
 class MCCodeEmitter;
 class MCContext;
+class MCInstrInfo;
 class MCObjectWriter;
-class MachineCodeEmitter;
+class MCSubtargetInfo;
 class Target;
 class TargetAsmBackend;
 class X86TargetMachine;
@@ -58,10 +60,9 @@ FunctionPass *createSSEDomainFixPass();
 FunctionPass *createX86JITCodeEmitterPass(X86TargetMachine &TM,
                                           JITCodeEmitter &JCE);
 
-MCCodeEmitter *createX86_32MCCodeEmitter(const Target &, TargetMachine &TM,
-                                         MCContext &Ctx);
-MCCodeEmitter *createX86_64MCCodeEmitter(const Target &, TargetMachine &TM,
-                                         MCContext &Ctx);
+MCCodeEmitter *createX86MCCodeEmitter(const MCInstrInfo &MCII,
+                                      const MCSubtargetInfo &STI,
+                                      MCContext &Ctx);
 
 TargetAsmBackend *createX86_32AsmBackend(const Target &, const std::string &);
 TargetAsmBackend *createX86_64AsmBackend(const Target &, const std::string &);