[Bug target/58928] Different results from gcc when -mlzcnt is used
jtaylor.debian at googlemail dot com
gcc-bugzilla@gcc.gnu.org
Fri Jan 17 10:31:00 GMT 2014
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58928
Julian Taylor <jtaylor.debian at googlemail dot com> changed:
What |Removed |Added
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CC| |jtaylor.debian at googlemail dot c
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--- Comment #3 from Julian Taylor <jtaylor.debian at googlemail dot com> ---
the result will be different depending on running on amd or intel cpu.
lzcnt encoding maps to some other instruction (bsr) on intel cpus, see
http://code.google.com/p/corkami/wiki/x86oddities#lzcnt
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