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8328085: C2: Use after free in PhaseChaitin::Register_Allocate() #3197

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8328085: C2: Use after free in PhaseChaitin::Register_Allocate() #3197

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1 change: 0 additions & 1 deletion src/hotspot/share/opto/postaloc.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -403,7 +403,6 @@ bool PhaseChaitin::eliminate_copy_of_constant(Node* val, Node* n,
// as they get encountered with the merge node and keep adding these defs to the merge inputs.
void PhaseChaitin::merge_multidefs() {
Compile::TracePhase tp("mergeMultidefs", &timers[_t_mergeMultidefs]);
ResourceMark rm;
// Keep track of the defs seen in registers and collect their uses in the block.
RegToDefUseMap reg2defuse(_max_reg, _max_reg, RegDefUse());
for (uint i = 0; i < _cfg.number_of_blocks(); i++) {
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