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changeset 34:545c277a3ecf

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6667581: Don't generate initialization (by 0) code for arrays with size 0 Summary: generate_arraycopy() does not check the size of allocated array. Reviewed-by: jrose, never
author kvn
date Fri, 29 Feb 2008 11:22:27 -0800
parents 3288958bf319
children e2ae28d2ce91
files src/share/vm/opto/library_call.cpp
diffstat 1 files changed, 1 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/opto/library_call.cpp	Fri Feb 29 09:57:18 2008 -0800
+++ b/src/share/vm/opto/library_call.cpp	Fri Feb 29 11:22:27 2008 -0800
@@ -4170,6 +4170,7 @@
       && !_gvn.eqv_uncast(src, dest)
       && ((alloc = tightly_coupled_allocation(dest, slow_region))
           != NULL)
+      && _gvn.find_int_con(alloc->in(AllocateNode::ALength), 1) > 0
       && alloc->maybe_set_complete(&_gvn)) {
     // "You break it, you buy it."
     InitializeNode* init = alloc->initialization();