[Bug tree-optimization/85891] [6 Regression] Simple loop is not SLP-vectorized after r196872

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu May 24 10:37:00 GMT 2018


--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
The log file shows the loop was already vectorized by loop vectorization.  How
did you configure gcc?  It might be you configured a default -march/tune that
doesn't match the testcase expectation (and the testcase could probably use
-ftree-slp-vectorize instead of -ftree-vectorize).

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