On Tue, Nov 15, 2016 at 1:19 PM, Eric Botcazou <ebotca...@adacore.com> wrote: >> Yes, I know -fno-strict-aliasing is globally set, but will all >> -fstrict-aliasing optimization attributes on functions be "overwritten"? >> That is, are you sure that when optimizing a function originally compiled >> with -fstrict-aliasing that -fno-strict-aliasing is in effect? > > Do you mean with the "optimize" attribute or somesuch? If so, I suppose not, > if the attributes are properly saved and restored; otherwise, I don't really > understand the question because I don't think that LTO saves the entire option > state on a per-function basis.
Yes, it does since GCC 5 (or was it 6?). Richard. > -- > Eric Botcazou
