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[Bug libstdc++/47368] CFLAGS_FOR_TARGET, profiledbootstrap and lto-bootstrap flags unused in libstdc++-v3
- From: "hubicka at ucw dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 20 Jan 2011 09:19:21 +0000
- Subject: [Bug libstdc++/47368] CFLAGS_FOR_TARGET, profiledbootstrap and lto-bootstrap flags unused in libstdc++-v3
- Auto-submitted: auto-generated
- References: <bug-47368-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47368
--- Comment #2 from Jan Hubicka <hubicka at ucw dot cz> 2011-01-20 09:19:02 UTC ---
> The libstdc++-v3 build also doesn't utilize the profiling flags produced in
> a profiledbootstrap or the lto flags produced from an lto-bootstrap.
profiledbootstrap/lto-bootstrap is about FDO/LTO while building compiler, not
runtime.
It would probably make sense for libstdc++-v3 to eventually build the shared
lib with
LTO, but we need to solve debug info quality issues...
Honza