Fix PR3274: when promoting the condition of a BRCOND node,
promote from i1 all the way up to the canonical SetCC type.
In order to discover an appropriate type to use, pass
MVT::Other to getSetCCResultType.  In order to be able to
do this, change getSetCCResultType to take a type as an
argument, not a value (this is also more logical).

llvm-svn: 61542
diff --git a/llvm/lib/Target/Alpha/AlphaISelLowering.cpp b/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
index 7b0fcca..793d475 100644
--- a/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/llvm/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -159,7 +159,7 @@
   computeRegisterProperties();
 }
 
-MVT AlphaTargetLowering::getSetCCResultType(const SDValue &) const {
+MVT AlphaTargetLowering::getSetCCResultType(MVT VT) const {
   return MVT::i64;
 }