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diff src/share/vm/opto/loopnode.cpp @ 4064:670a74b863fc

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7107042: assert(no_dead_loop) failed: dead loop detected Summary: Use dead nodes elimination code in PhaseIdealLoop before executing EA. Reviewed-by: never, twisti
author kvn
date Wed, 09 Nov 2011 07:25:51 -0800
parents 2c24ef16533d
children e8fdaf4a66cb
line wrap: on
line diff
--- a/src/share/vm/opto/loopnode.cpp	Wed Nov 09 06:14:32 2011 -0800
+++ b/src/share/vm/opto/loopnode.cpp	Wed Nov 09 07:25:51 2011 -0800
@@ -1883,7 +1883,7 @@
 //----------------------------build_and_optimize-------------------------------
 // Create a PhaseLoop.  Build the ideal Loop tree.  Map each Ideal Node to
 // its corresponding LoopNode.  If 'optimize' is true, do some loop cleanups.
-void PhaseIdealLoop::build_and_optimize(bool do_split_ifs) {
+void PhaseIdealLoop::build_and_optimize(bool do_split_ifs, bool skip_loop_opts) {
   ResourceMark rm;
 
   int old_progress = C->major_progress();
@@ -2072,6 +2072,16 @@
   }
 #endif
 
+  if (skip_loop_opts) {
+    // Cleanup any modified bits
+    _igvn.optimize();
+
+    if (C->log() != NULL) {
+      log_loop_tree(_ltree_root, _ltree_root, C->log());
+    }
+    return;
+  }
+
   if (ReassociateInvariants) {
     // Reassociate invariants and prep for split_thru_phi
     for (LoopTreeIterator iter(_ltree_root); !iter.done(); iter.next()) {