Mercurial > hg > icedtea7-forest > hotspot
changeset 6523:0c9693499383
8157306, PR3209: Random infrequent null pointer exceptions in javac
Reviewed-by: kvn
author | aph |
---|---|
date | Thu, 23 Jun 2016 17:58:59 +0000 |
parents | a370975c1af2 |
children | ac0bfb91f920 |
files | src/share/vm/opto/lcm.cpp |
diffstat | 1 files changed, 3 insertions(+), 2 deletions(-) [+] |
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--- a/src/share/vm/opto/lcm.cpp Sun Sep 01 19:21:05 2013 +0200 +++ b/src/share/vm/opto/lcm.cpp Thu Jun 23 17:58:59 2016 +0000 @@ -1075,11 +1075,12 @@ 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); + } } }