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[Bug bootstrap/85922] bootstrapping fails with -O3 because gcc 8.1.0 generates unknown instruction pshufb
- 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: Fri, 25 May 2018 11:33:32 +0000
- Subject: [Bug bootstrap/85922] bootstrapping fails with -O3 because gcc 8.1.0 generates unknown instruction pshufb
- Auto-submitted: auto-generated
- References: <bug-85922-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85922
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |WONTFIX
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Workaround: do not use -O3 or -march=native
When you are using -march=native then we expect you to have a binutils version
that can handle your native ISA.