http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57333
Uroš Bizjak <ubizjak at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tmsriram at google dot com Target Milestone|--- |4.7.4 Severity|major |normal --- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> --- LZCNT insn is part of ABM abi, and is enabled with -mabm. Does LZCNT insn really cause SIGILL on your target? The issue with -mno-lzcnt will be fixed as part of patch at [1]. [1] http://gcc.gnu.org/ml/gcc-patches/2013-05/msg01054.html