Alias on this instead of the first data member
Alias on this instead of the first data member

ICC ignores changes to data1 if we alias on data0. Via aliasing on this
ICC also assumes possible aliasing on data1.

Signed-off-by: Matthias Kretz <372ea4eca737a13cd010ee806d4ce7b98ee71550@kde.org>

VcDevel/Vc,chr-engwer/Vc,VcDevel/Vc,chr-engwer/Vc,VcDevel/Vc,VcDevel/Vc,chr-engwer/Vc