added a few 1 operand form stuff.  Seems to break regalloc on alpha.  sigh


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23849 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaISelPattern.cpp b/lib/Target/Alpha/AlphaISelPattern.cpp
index bb2162b..e523245 100644
--- a/lib/Target/Alpha/AlphaISelPattern.cpp
+++ b/lib/Target/Alpha/AlphaISelPattern.cpp
@@ -697,7 +697,7 @@
     Opc = opcode == ISD::CTPOP ? Alpha::CTPOP :
     (opcode == ISD::CTTZ ? Alpha::CTTZ : Alpha::CTLZ);
     Tmp1 = SelectExpr(N.getOperand(0));
-    BuildMI(BB, Opc, 1, Result).addReg(Alpha::R31).addReg(Tmp1);
+    BuildMI(BB, Opc, 1, Result).addReg(Tmp1);
     return Result;
 
   case ISD::MULHU:
@@ -1084,10 +1084,10 @@
           break;
         }
       case MVT::i16:
-        BuildMI(BB, Alpha::SEXTW, 1, Result).addReg(Alpha::R31).addReg(Tmp1);
+        BuildMI(BB, Alpha::SEXTW, 1, Result).addReg(Tmp1);
         break;
       case MVT::i8:
-        BuildMI(BB, Alpha::SEXTB, 1, Result).addReg(Alpha::R31).addReg(Tmp1);
+        BuildMI(BB, Alpha::SEXTB, 1, Result).addReg(Tmp1);
         break;
       case MVT::i1:
         Tmp2 = MakeReg(MVT::i64);