fix a layering problem by moving the x86 implementation

of AsmPrinter and InstLowering into libx86 and out of the
asmprinter subdirectory.  Now X86/AsmPrinter just depends on
MC stuff, not all of codegen and LLVM IR.

llvm-svn: 108782

1 files changed, 51 insertions, 0 deletions

diff --git a/llvm/lib/Target/X86/X86MCInstLower.h b/llvm/lib/Target/X86/X86MCInstLower.h
new file mode 100644
index 00000000000..9e5474fc81b
--- /dev/null
+++ b/llvm/lib/Target/X86/X86MCInstLower.h
@@ -0,0 +1,51 @@
+//===-- X86MCInstLower.h - Lower MachineInstr to MCInst -------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef X86_MCINSTLOWER_H
+#define X86_MCINSTLOWER_H
+
+#include "llvm/Support/Compiler.h"
+
+namespace llvm {
+  class MCContext;
+  class MCInst;
+  class MCOperand;
+  class MCSymbol;
+  class MachineInstr;
+  class MachineModuleInfoMachO;
+  class MachineOperand;
+  class Mangler;
+  class X86AsmPrinter;
+  class X86Subtarget;
+  
+/// X86MCInstLower - This class is used to lower an MachineInstr into an MCInst.
+class LLVM_LIBRARY_VISIBILITY X86MCInstLower {
+  MCContext &Ctx;
+  Mangler *Mang;
+  X86AsmPrinter &AsmPrinter;
+
+  const X86Subtarget &getSubtarget() const;
+public:
+  X86MCInstLower(MCContext &ctx, Mangler *mang, X86AsmPrinter &asmprinter)
+    : Ctx(ctx), Mang(mang), AsmPrinter(asmprinter) {}
+  
+  void Lower(const MachineInstr *MI, MCInst &OutMI) const;
+
+  MCSymbol *GetPICBaseSymbol() const;
+  
+  MCSymbol *GetSymbolFromOperand(const MachineOperand &MO) const;
+  MCOperand LowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const;
+  
+private:
+  MachineModuleInfoMachO &getMachOMMI() const;
+};
+
+}
+
+#endif