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[vectorizer] Add some flags which are useful for conducting experiments with…

Authored by chandlerc on Jan 27 2014, 3:12 AM.

Description

[vectorizer] Add some flags which are useful for conducting experiments with the unrolling behavior in the loop vectorizer. No functionality changed at this point.

These are a bit hack-y, but talking with Hal, there doesn't seem to be
a cleaner way to easily experiment with different thresholds here and he
was also interested in them so I wanted to commit them. Suggestions for
improvement are very welcome here.

llvm-svn: 200212

Details

Committed
chandlercJan 27 2014, 3:12 AM
Parents
rG328998b2f7dc: [vectorizer] Fix a trivial oversight where we always requested the number of…
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