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Re: RFA: Set default optimization level to -O2 for -flto
H.J. Lu wrote:
Should we record compiler options in .o files? For some targets, you may need
-fPIC with -flto if -fPIC is used to build .o files.
I thought it was already the case....
Anyway, to check compatibility of compile versus link time optimisation
flag, we need to store them somewhere...
But yes, I believe that at least in -flto mode, we better should store
all the compile flags (those listed in comments when running
-fverbose-asm -S) somewhere in the object file.
BTW, are we talking about patching 4.5 before its release or about 4.6?
If 4.5 can be patched to improve a new feature, I respectfully ask for
someone to review the
http://gcc.gnu.org/ml/gcc-patches/2010-03/msg00644.html patch which
enables short plugin names like -fplugin=treehydra instead of
-fplugin=/some/distribution/path/to/treehydra.so
Cheers
--
Basile STARYNKEVITCH http://starynkevitch.net/Basile/
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