[Bug tree-optimization/96920] [10/11 Regression] ICE segmentation fault in tree-vectorizer at -O3

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96920

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |ice-on-valid-code

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
So with outer loop vectorization we fail to update an inner PHI backedge value.

(gdb) p debug_gimple_stmt ($2)
vect_prev_57.20_22 = PHI <vect_cst__23(7), (11)>