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Re: [autovect][patch]Loop Versioning for Vectorization


Updated patch with requested changes using current source in autovect 
branch.

Two issues to be resolved in the future.

1) Call to rewrite_into_loop_closed_ssa each time we vectorize a
loop will be changed before autovect branch is merged into mainline.

2) Extra passes in tests will be resolved with a separate patch which
adds a -ftree-vect-loop-version option.  This option will be on by
default when vectorization is performed, but will be turned off in the
test cases that currently have extra passes.

Keith

 

Attachment: vect.1-27.diff
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Attachment: tree-vectorizer.1-27.c
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