Edwin Vane 862fec8835 Write transform results to disk only once
Instead of writing the result of each transform to disk for every
transform, write the results to buffers in memory and pass those buffers
to the next transform as input. Only write the buffers to disk if the
final syntax check passes.

Reviewers: klimek
llvm-svn: 172657
2013-01-16 21:11:50 +00:00
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