http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59658
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-01-07
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
But it might be misleading (similar to -O0 vs -O2) - enabling for example
-ftree-pre won't enable PRE for -Og as it has a completely different
pass pipeline which is not based on -O[123]. Those enumerations are only
relevant for the 'numbered' optimization levels (excluding -O0).
So we miss to filter options in --help optimizers that can be enabled at all.
