8038921: assert(t != NULL) failed: must set before get

Summary: Ignore nodes without a type when checking for speculative types in Compile::remove_speculative_types(...).
Reviewed-by: kvn, roland
Contributed-by: Tobias Hartmann <tobias.hartmann@oracle.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/share/vm/opto/compile.cpp b/src/share/vm/opto/compile.cpp
index 9c77dd0cf..23ecdfc11 100644
--- a/src/share/vm/opto/compile.cpp
+++ b/src/share/vm/opto/compile.cpp
@@ -3961,8 +3961,8 @@ void Compile::remove_speculative_types(PhaseIterGVN &igvn) {
     worklist.push(root());
     for (uint next = 0; next < worklist.size(); ++next) {
       Node *n  = worklist.at(next);
-      const Type* t = igvn.type(n);
-      assert(t == t->remove_speculative(), "no more speculative types");
+      const Type* t = igvn.type_or_null(n);
+      assert((t == NULL) || (t == t->remove_speculative()), "no more speculative types");
       if (n->is_Type()) {
         t = n->as_Type()->type();
         assert(t == t->remove_speculative(), "no more speculative types");