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The PR shows that the uninit analysis limits are set too low in cases we lower switches to ifs as happens on s390x for a linux kernel TU. This causes false positive uninit diagnostics as we abort the attempt to prove that a value is initialized on all paths. The new testcase only would require upping to 9. PR tree-optimization/120924 * params.opt (uninit-max-chain-len): Up from 8 to 12. * gcc.dg/uninit-pr120924.c: New testcase.
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