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[Bug target/82713] [8 Regression] ICE in ix86_builtin_vectorization_cost, at config/i386/i386.c:44475
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 25 Oct 2017 08:47:44 +0000
- Subject: [Bug target/82713] [8 Regression] ICE in ix86_builtin_vectorization_cost, at config/i386/i386.c:44475
- Auto-submitted: auto-generated
- References: <bug-82713-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82713
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
non-SLP manages to get by using scalar_to_vec given it only handles the case of
all constants/externals being the same value. As said the costing
infrastructure
inside the vectorizer itself is somewhat limiting.
I suggest you work around in the backend for now, I'll take this "bug" as an
excuse to work on the cost model during stage3.