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r242310 - in /branches/ARM/sve-branch/gcc: para...
- From: rsandifo at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 11 Nov 2016 17:38:42 -0000
- Subject: r242310 - in /branches/ARM/sve-branch/gcc: para...
Date: Fri Nov 11 17:38:41 2016
New Revision: 242310
Allow the number of iterations to be smaller than VF
Fully-masked loops can be profitable even if the iteration
count is smaller than the vectorisation factor. In this case
we're effectively doing a complete unroll followed by SLP.
The documentation for min-vect-loop-bound says that the
default value was 0, but actually the default and minimum
were 1. We need it to be 0 for this case since the parameter
counts a whole number of vector iterations.