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[Bug target/38201] -mfma/-mavx and -msse5/-msse4a don't work together
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Nov 2008 19:46:53 -0000
- Subject: [Bug target/38201] -mfma/-mavx and -msse5/-msse4a don't work together
- References: <bug-38201-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from hjl dot tools at gmail dot com 2008-11-20 19:46 -------
(In reply to comment #4)
> Yes, you are right. "-mfma -msse5" does not make sense. I mistook -mfma for
> -mfused-madd and hence the confusion.
>
> Hence these combinations (1 and 2) does not make sense.
>
Should we disallow such combinations?
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38201