For PR1207:

Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34399 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 17 deletions

diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h
index da111e6..6d53d51 100644
--- a/include/llvm/Target/MRegisterInfo.h
+++ b/include/llvm/Target/MRegisterInfo.h
@@ -284,17 +284,6 @@ public:
     return false;
   }
 
-  /// regsOverlap - Returns true if the two registers are equal or alias
-  /// each other. The registers may be virtual register.
-  bool regsOverlap(unsigned regA, unsigned regB) const {
-    if (regA == regB)
-      return true;
-
-    if (isVirtualRegister(regA) || isVirtualRegister(regB))
-      return false;
-    return areAliases(regA, regB);
-  }
-
   /// getCalleeSavedRegs - Return a null-terminated list of all of the
   /// callee saved registers on this target. The register should be in the
   /// order of desired callee-save stack frame offset. The first register is
@@ -306,12 +295,6 @@ public:
   /// length of this list match the getCalleeSaveRegs() list.
   virtual const TargetRegisterClass* const *getCalleeSavedRegClasses() const =0;
 
-  /// getReservedRegs - Returns a bitset indexed by physical register number
-  /// indicating if a register is a special register that has particular uses and
-  /// should be considered unavailable at all times, e.g. SP, RA. This is used by
-  /// register scavenger to determine what registers are free.
-  virtual BitVector getReservedRegs(const MachineFunction &MF) const = 0;
-
   //===--------------------------------------------------------------------===//
   // Register Class Information
   //