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[Bug target/49547] LZCNT should be enabled only if ABM or LZCNT bits are set
- 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: Mon, 27 Jun 2011 16:53:01 +0000
- Subject: [Bug target/49547] LZCNT should be enabled only if ABM or LZCNT bits are set
- Auto-submitted: auto-generated
- References: <bug-49547-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49547
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.06.27 16:10:24
Target Milestone|--- |4.6.2
Ever Confirmed|0 |1
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2011-06-27 16:10:24 UTC ---
Assembler takes lzcnt only if ABM or LCNT is enabled.
It has nothing to do with BMI. AMD spec is incorrect.