[Bug lto/54231] LTO generates code for the wrong CPU if different options used

[thiago at kde dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54231

--- Comment #9 from Thiago Macieira <thiago at kde dot org> 2012-08-13 09:44:51 UTC ---
(In reply to comment #8)
> If you do something like
> 
>  gcc -c t1.c -mavx -flto
>  gcc -c t2.c -msse2 -flto
>  gcc t1.o t2.o -flto
> 
> then the link step will use -mavx -msse2, that is, target options are
> concatenated.

Indeed.

What I'm asking for is that each source file be compiled with its own target
options. I realise this is a request for enhancement, though.