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From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/36557] -m32 -mpowerpc64 produces better code than -m64 for a!=0
Date: Fri, 26 Dec 2014 21:56:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36557

--- Comment #2 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Still happens.  It now does

cntlzw 3,3
srwi 3,3,5
xori 3,3,0x1
rldicl 3,3,0,63
blr

which is better but not exactly ideal yet.