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[Bug target/53399] "*ffs" pattern generates wrong code with BMI enabled
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 20 May 2012 16:24:13 +0000
- Subject: [Bug target/53399] "*ffs" pattern generates wrong code with BMI enabled
- Auto-submitted: auto-generated
- References: <bug-53399-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53399
--- Comment #9 from H.J. Lu <hjl.tools at gmail dot com> 2012-05-20 16:24:13 UTC ---
We can't use tzcnt in the current ffs patterns.
We should add a CCC variant for ffs patterns with
tzcnt.