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Hi Lang, In PBQPBuilderWithCoalescing::build, around line 360, we have code looking like: … PBQP::Vector newCosts(g.getNodeCosts(node)); addPhysRegCoalesce(newCosts, pregOpt, cBenefit); g.setNodeCosts(node, newCosts); … I suspect the leak occurs around the setNodeCosts method, and I have trouble understanding how it handles the case where the node already has costs. It seems to me that: - we make...

...PM, Arnaud A. de Grandmaison < > arnaud.degrandmaison at arm.com> wrote: > >> Hi Lang, >> >> >> >> In PBQPBuilderWithCoalescing::build, around line 360, we have code >> looking like: >> >> >> >> … >> >> PBQP::Vector newCosts(g.getNodeCosts(node)); >> >> addPhysRegCoalesce(newCosts, pregOpt, cBenefit); >> >> g.setNodeCosts(node, newCosts); >> >> … >> >> >> >> I suspect the leak occurs around the setNodeCosts method, and I have >> trouble understanding ho...