-fnothrow-opt

[Stephan Bergmann]

On 01/26/2015 11:28 AM, Stephan Bergmann wrote:
> In case anybody ever wonders: -fnothrow-opt (treating "throw ()" like
> "noexcept",
> <https://gcc.gnu.org/onlinedocs/gcc-4.6.4/gcc/C_002b_002b-Dialect-Options.html#index-fnothrow_002dopt-148>;
> only available in GCC, not in Clang) would appear to not buy us anything
> for LO:  For one, it has zero effect on the generated code with
> -fno-enforce-eh-specs (enabled for --disable-dbgutil; only available in
> GCC, not in Clang).  For another, even if we used -fenforce-eh-specs, my
> GCC 4.9.2 --disable-dbgutil Linux master build would only shrink instdir
> by 20 bytes (from 1,817,288 to 1,817,268).

kilo-bytes, of course