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diff src/share/vm/opto/phaseX.cpp @ 927:662f330d7275

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6866651: Regression: simple int sum crashes jvm (build 1.6.0_14-b08 and 1.7.0-ea-b59) Summary: delay dead code elimination in set_req_X to make it safe Reviewed-by: kvn, never
author cfang
date Mon, 17 Aug 2009 12:11:06 -0700
parents 98cb887364d3
children 89e0543e1737 03b336640699
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line diff
--- a/src/share/vm/opto/phaseX.cpp	Mon Aug 17 09:48:02 2009 -0700
+++ b/src/share/vm/opto/phaseX.cpp	Mon Aug 17 12:11:06 2009 -0700
@@ -1622,9 +1622,11 @@
   // old goes dead?
   if( old ) {
     switch (old->outcnt()) {
-    case 0:      // Kill all his inputs, and recursively kill other dead nodes.
+    case 0:
+      // Put into the worklist to kill later. We do not kill it now because the
+      // recursive kill will delete the current node (this) if dead-loop exists
       if (!old->is_top())
-        igvn->remove_dead_node( old );
+        igvn->_worklist.push( old );
       break;
     case 1:
       if( old->is_Store() || old->has_special_unique_user() )