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[Bug target/59405] Incorrect FP<->MMX transition during call/ret
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 06 Dec 2013 11:17:38 +0000
- Subject: [Bug target/59405] Incorrect FP<->MMX transition during call/ret
- Auto-submitted: auto-generated
- References: <bug-59405-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59405
--- Comment #1 from UroÅ Bizjak <ubizjak at gmail dot com> ---
There is no testcase attached, but you need to *manually* insert _mm_empty (==
emms) to switch from MMX to x87 state.
The compiler does not automatically insert emms for you.