[X86] Move getX86SubSuperRegisterOrZero to X86MCTargetDesc.cpp so it can be used...

[oota-llvm.git] / lib / Target / X86 / MCTargetDesc / X86MCTargetDesc.h

diff --git a/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h b/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h
index f8e4e70e53f8ab5a644337c1151e5d99862d2d43..2d2836ff07c55a5976ee4482e99cc975873aa9f4 100644 (file)
--- a/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h
+++ b/lib/Target/X86/MCTargetDesc/X86MCTargetDesc.h
@@ -98,6 +98,17 @@ MCRelocationInfo *createX86_64MachORelocationInfo(MCContext &Ctx);
 
 /// Construct X86-64 ELF relocation info.
 MCRelocationInfo *createX86_64ELFRelocationInfo(MCContext &Ctx);
+
+/// Returns the sub or super register of a specific X86 register.
+/// e.g. getX86SubSuperRegister(X86::EAX, 16) returns X86::AX.
+/// Aborts on error.
+unsigned getX86SubSuperRegister(unsigned, unsigned, bool High=false);
+
+/// Returns the sub or super register of a specific X86 register.
+/// Like getX86SubSuperRegister() but returns 0 on error.
+unsigned getX86SubSuperRegisterOrZero(unsigned, unsigned,
+                                      bool High = false);
+
 } // End llvm namespace