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[Bug ipa/66122] Bad uninlining decisions
- From: "vda.linux at googlemail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 18 May 2015 11:19:27 +0000
- Subject: [Bug ipa/66122] Bad uninlining decisions
- Auto-submitted: auto-generated
- References: <bug-66122-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66122
--- Comment #8 from Denis Vlasenko <vda.linux at googlemail dot com> ---
If you try to reproduce this with kernel build, be sure to not select
CONFIG_OPTIMIZE_INLINING (it forces inlining by making all iniline functions
__always_inline).
I didn't mention it before, but the recent (as of this writing) gcc 5.1.1
20150422 (Red Hat 5.1.1-1) with -Os easily triggers this behavior (more than a
thousand *.o modules with spurious deinlines during kernel build).