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[Bug tree-optimization/71831] __builtin_object_size poor results with no optimization
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 12 Jul 2016 14:53:34 +0000
- Subject: [Bug tree-optimization/71831] __builtin_object_size poor results with no optimization
- Auto-submitted: auto-generated
- References: <bug-71831-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71831
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
One of the reasons is that -O0 should mean short compile time. If you schedule
the objsz pass at -O0, you might slow down the compilation, especially on
larger functions.
The glibc headers won't use it at -O0 anyway, so what would it be good for?