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From: Richard Biener <rguenth@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-2639] tree-optimization/106913 - ICE with -da and -Wuninitialized Date: Tue, 13 Sep 2022 08:52:36 +0000 (GMT) [thread overview] Message-ID: <20220913085236.E3D463850866@sourceware.org> (raw) https://gcc.gnu.org/g:ad08894ea02b6308c4ed4e8cd8e6a564c2f581e8 commit r13-2639-gad08894ea02b6308c4ed4e8cd8e6a564c2f581e8 Author: Richard Biener <rguenther@suse.de> Date: Tue Sep 13 08:46:51 2022 +0200 tree-optimization/106913 - ICE with -da and -Wuninitialized The following avoids setting and not clearing an auto_bb_flag on EXIT_BLOCK which we don't verify for such stale flags but dump_bb_info still asserts on them. PR tree-optimization/106913 * tree-ssa-uninit.cc (warn_uninitialized_vars): Do not set ft_reachable on EXIT_BLOCK. Diff: --- gcc/tree-ssa-uninit.cc | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/gcc/tree-ssa-uninit.cc b/gcc/tree-ssa-uninit.cc index 4a1c333d9cb..eae29f88f9d 100644 --- a/gcc/tree-ssa-uninit.cc +++ b/gcc/tree-ssa-uninit.cc @@ -1013,11 +1013,9 @@ warn_uninitialized_vars (bool wmaybe_uninit) if (ee) bb = ee->dest; else - { - bb = get_immediate_dominator (CDI_POST_DOMINATORS, bb); - if (!bb || bb->index == EXIT_BLOCK) - break; - } + bb = get_immediate_dominator (CDI_POST_DOMINATORS, bb); + if (!bb || bb->index == EXIT_BLOCK) + break; } FOR_EACH_BB_FN (bb, cfun)
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