QString: Don't force unrolling of the tail loop if optimizing for size

This is quite good if space isn't a constraint: the unrolling ensures
faster execution and limits the number of iterations. But it's long.

Both Clang and GCC set the predefined macro __OPTIMIZE_SIZE__ if -Os is
in effect. ICC does not; MSVC is untested but there are no macros for
this effect listed in its documentation.

Change-Id: I1a800c709d3543699131ffff13c48919a9a79ec3
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>

0 files changed, 0 insertions, 0 deletions