https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66142

--- Comment #26 from Yuri Rumyantsev <ysrumyan at gmail dot com> ---
If we convert copy structures to copy structure fields test will be vectorized
and all mentions of GOMP_SIMD_LANE will be deleted. But if we slightly modify
test by introducing new function vdot and insert its call:
   b = r.x * ray->dir.x + r.y * ray->dir.y;
                     |
                     v
   b = vdot (r, ray->dir);
test won't be vectorized:
test2.cpp:70:9: note: not vectorized: not suitable for scatter store
D.6062[_9].org.x = 1.0e+0;

test2.cpp is attached.

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