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Re: [Bug libstdc++/47368] New: CFLAGS_FOR_TARGET, profiledbootstrap and lto-bootstrap flags unused in libstdc++-v3
- From: Jan Hubicka <hubicka at ucw dot cz>
- To: "howarth at nitro dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>
- Cc: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 20 Jan 2011 10:18:53 +0100
- Subject: Re: [Bug libstdc++/47368] New: CFLAGS_FOR_TARGET, profiledbootstrap and lto-bootstrap flags unused in libstdc++-v3
- References: <bug-47368-4@http.gcc.gnu.org/bugzilla/>
> 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