Matt Pharr f73abb05a7 Fix bug in handling scatters where all instances go to the same location. ...

Previously, we'd pick one lane and generate a regular store for its value.
This was the wrong thing to do, since we also should have been checking
that the mask was on (for the lane that was chosen).  This bug didn't
become evident until the scalar target was added, since many stores fall
into this case with that target.

Now, we just leave those as regular scatters.

Fixes most of the failing tests for the scalar target listed in issue #167.

2012-01-31 11:06:14 -08:00

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