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8157306: Random infrequent null pointer exceptions in javac

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Reviewed-by: kvn
This commit is contained in:
Andrew Haley 2016-06-23 17:58:59 +00:00
parent 52d291dd00
commit eded7ae794
1 changed files with 3 additions and 2 deletions
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5
hotspot/src/share/vm/opto/lcm.cpp
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@ -1293,11 +1293,12 @@ void PhaseCFG::call_catch_cleanup(Block* block) {
Block *sb = block->_succs[i];
// Clone the entire area; ignoring the edge fixup for now.
for( uint j = end; j > beg; j-- ) {
// It is safe here to clone a node with anti_dependence
// since clones dominate on each path.
Node *clone = block->get_node(j-1)->clone();
sb->insert_node(clone, 1);
map_node_to_block(clone, sb);
if (clone->needs_anti_dependence_check()) {
insert_anti_dependences(sb, clone);
}
}
}