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changeset 2978:5da7e3791b0d

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7198606: Improve VM optimization Reviewed-by: roland, twisti
author kvn
date Wed, 19 Sep 2012 21:14:10 -0700
parents f43620c8febc
children 767fdaea4155
files src/share/vm/opto/loopTransform.cpp
diffstat 1 files changed, 3 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/opto/loopTransform.cpp	Fri Oct 12 14:26:47 2012 +0100
+++ b/src/share/vm/opto/loopTransform.cpp	Wed Sep 19 21:14:10 2012 -0700
@@ -2733,6 +2733,8 @@
   result_mem = new (C, 1) ProjNode(call,TypeFunc::Memory);
   _igvn.register_new_node_with_optimizer(result_mem);
 
+/* Disable following optimization until proper fix (add missing checks).
+
   // If this fill is tightly coupled to an allocation and overwrites
   // the whole body, allow it to take over the zeroing.
   AllocateNode* alloc = AllocateNode::Ideal_allocation(base, this);
@@ -2756,6 +2758,7 @@
 #endif
     }
   }
+*/
 
   // Redirect the old control and memory edges that are outside the loop.
   Node* exit = head->loopexit()->proj_out(0);