mark all the generated node predicates 'const'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96337 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaISelDAGToDAG.cpp b/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
index eaefef9..d6b17c2 100644
--- a/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
+++ b/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
@@ -64,7 +64,7 @@
     /// that the bits 1-7 of LHS are already zero.  If LHS is non-null, we are
     /// in checking mode.  If LHS is null, we assume that the mask has already
     /// been validated before.
-    uint64_t get_zapImm(SDValue LHS, uint64_t Constant) {
+    uint64_t get_zapImm(SDValue LHS, uint64_t Constant) const {
       uint64_t BitsToCheck = 0;
       unsigned Result = 0;
       for (unsigned i = 0; i != 8; ++i) {