[llvm] r312088 - [TableGen] Fix a range based for loop to take the value by reference so that SimplifyTree can modify the copy in the array if its needs to.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Tue Aug 29 19:05:03 2017
New Revision: 312088

URL: http://llvm.org/viewvc/llvm-project?rev=312088&view=rev
Log:
[TableGen] Fix a range based for loop to take the value by reference so that SimplifyTree can modify the copy in the array if its needs to.

Modified:
    llvm/trunk/utils/TableGen/CodeGenDAGPatterns.cpp

Modified: llvm/trunk/utils/TableGen/CodeGenDAGPatterns.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenDAGPatterns.cpp?rev=312088&r1=312087&r2=312088&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenDAGPatterns.cpp (original)
+++ llvm/trunk/utils/TableGen/CodeGenDAGPatterns.cpp Tue Aug 29 19:05:03 2017
@@ -2304,7 +2304,7 @@ InferAllTypes(const StringMap<SmallVecto
   bool MadeChange = true;
   while (MadeChange) {
     MadeChange = false;
-    for (TreePatternNode *Tree : Trees) {
+    for (TreePatternNode *&Tree : Trees) {
       MadeChange |= Tree->ApplyTypeConstraints(*this, false);
       MadeChange |= SimplifyTree(Tree);
     }