Merge pull request #6062 from a7ehuo/fix-vp-trace

Fix accessing NULL lhs or rhs when printing VP in trace
eclipse · Jun 11, 2021 · 4a8c53c · 4a8c53c
2 parents 7b68352 + 7226957
commit 4a8c53c
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/compiler/optimizer/VPHandlers.cpp b/compiler/optimizer/VPHandlers.cpp
@@ -9735,10 +9735,16 @@ static TR::Node *constrainIfcmpeqne(OMR::ValuePropagation *vp, TR::Node *node, b
 
        if (vp->trace())
           {
-          traceMsg(vp->comp(), "P2O: Considering a candidate at %p. Object Constraint : ", node);
-          lhs->print(vp);
-          traceMsg(vp->comp(), " , Guard constraint : ");
-          rhs->print(vp);
+          if (lhs)
+             {
+             traceMsg(vp->comp(), "P2O: Considering a candidate at %p. Object Constraint : ", node);
+             lhs->print(vp);
+             }
+          if (rhs)
+             {
+             traceMsg(vp->comp(), " , Guard constraint : ");
+             rhs->print(vp);
+             }
           traceMsg(vp->comp(), "\n");
           }