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8268369: SIGSEGV in PhaseCFG::implicit_null_check due to missing null…
… check

Reviewed-by: chagedorn, kvn
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TobiHartmann committed Jul 6, 2021
1 parent 5b8e1a2 commit 4ad8b04
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion src/hotspot/share/opto/lcm.cpp
Expand Up @@ -413,7 +413,7 @@ void PhaseCFG::implicit_null_check(Block* block, Node *proj, Node *val, int allo
// Move the control dependence if it is pinned to not-null block.
// Don't change it in other cases: NULL or dominating control.
Node* ctrl = best->in(0);
if (get_block_for_node(ctrl) == not_null_block) {
if (ctrl != NULL && get_block_for_node(ctrl) == not_null_block) {
// Set it to control edge of null check.
best->set_req(0, proj->in(0)->in(0));
}
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