Hi,

We don’t allow vector type for integer. Likewise I am also disallowing
the floating point vector type in transforming repeated addition to
multiplication.

This can be relaxed. I will send a separate patch to allow integer and
floating point vectorization later.

Bootstrapped and regression tested on x86-64-linux-gnu with no new regressions.

Is this OK for trunk?

Thanks,
Kugan

gcc/testsuite/ChangeLog:

2016-05-20  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

    * gcc.dg/tree-ssa/pr71179.c: New test.

gcc/ChangeLog:

2016-05-20  Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>

    * tree-ssa-reassoc.c (transform_add_to_multiply): Disallow float
VECTOR type.