diff options
Diffstat (limited to 'src/share/vm/opto/phaseX.cpp')
| -rw-r--r-- | src/share/vm/opto/phaseX.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/share/vm/opto/phaseX.cpp b/src/share/vm/opto/phaseX.cpp index 45690469d..484629a90 100644 --- a/src/share/vm/opto/phaseX.cpp +++ b/src/share/vm/opto/phaseX.cpp @@ -986,7 +986,9 @@ Node *PhaseIterGVN::transform_old( Node *n ) { // Apply the Ideal call in a loop until it no longer applies Node *k = n; DEBUG_ONLY(dead_loop_check(k);) + DEBUG_ONLY(bool is_new = (k->outcnt() == 0);) Node *i = k->Ideal(this, /*can_reshape=*/true); + assert(i != k || is_new || i->outcnt() > 0, "don't return dead nodes"); #ifndef PRODUCT if( VerifyIterativeGVN ) verify_step(k); @@ -1024,7 +1026,9 @@ Node *PhaseIterGVN::transform_old( Node *n ) { } DEBUG_ONLY(dead_loop_check(k);) // Try idealizing again + DEBUG_ONLY(is_new = (k->outcnt() == 0);) i = k->Ideal(this, /*can_reshape=*/true); + assert(i != k || is_new || i->outcnt() > 0, "don't return dead nodes"); #ifndef PRODUCT if( VerifyIterativeGVN ) verify_step(k); |