https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61112
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
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Keywords| |diagnostic
CC| |msebor at gcc dot gnu.org
--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
The test case in comment #0 was fixed by r227942:
[PATCH] Fix 47679 by improving jump threading
PR tree-optimization/47679
* tree-ssa-dom.c (record_temporary_equivalences): No longer static.
* tree-ssa-dom.h (record_temporary_equivalences): Add prototype.
* tree-ssa-threadedge.c: Include tree-ssa-dom.h.
(thread_through_normal_block): Use record_temporary_equivalences.
PR tree-optimization/47679
* g++.dg/warn/Wuninitialized-6.C: New test.
The test case in comment #5 still results in -Wmaybe-uninitialized with GCC 9.
As far as bisection shows, it has always been diagnosed.