Expose base opcode
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4742 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h
index 415d81a..6553681 100644
--- a/lib/Target/X86/X86InstrInfo.h
+++ b/lib/Target/X86/X86InstrInfo.h
@@ -54,6 +54,7 @@
/// TODO: Mod/RM that uses a fixed opcode extension, like /0
+ FormMask = 7,
//===------------------------------------------------------------------===//
// Actual flags...
@@ -83,6 +84,12 @@
virtual void print(const MachineInstr *MI, std::ostream &O,
const TargetMachine &TM) const;
+ // getBaseOpcodeFor - This function returns the "base" X86 opcode for the
+ // specified opcode number.
+ //
+ unsigned char getBaseOpcodeFor(unsigned Opcode) const;
+
+
//===--------------------------------------------------------------------===//
//