[Bug target/59371] [4.8/4.9 Regression] Performance regression in GCC 4.8 and later versions.

[macro@linux-mips.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59371

--- Comment #8 from Maciej W. Rozycki <macro@linux-mips.org> ---
Richard,

 I wasn't aware integer promotions applied here, thanks for pointing it
out.  New code is therefore correct while old one was not.  Unfortunately
neither -fwrapv nor -funsafe-loop-optimizations changes anything.

  Maciej