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diff src/share/vm/opto/library_call.cpp @ 3961:a92cdbac8b9e

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7081933: Use zeroing elimination optimization for large array Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it. Reviewed-by: twisti
author kvn
date Mon, 26 Sep 2011 10:24:05 -0700
parents b2cb497dec28
children 52b5d32fbfaf 069ab3f976d3
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--- a/src/share/vm/opto/library_call.cpp	Sun Sep 25 16:03:29 2011 -0700
+++ b/src/share/vm/opto/library_call.cpp	Mon Sep 26 10:24:05 2011 -0700
@@ -4658,6 +4658,7 @@
     // "You break it, you buy it."
     InitializeNode* init = alloc->initialization();
     assert(init->is_complete(), "we just did this");
+    init->set_complete_with_arraycopy();
     assert(dest->is_CheckCastPP(), "sanity");
     assert(dest->in(0)->in(0) == init, "dest pinned");
     adr_type = TypeRawPtr::BOTTOM;  // all initializations are into raw memory