[Bug tree-optimization/60930] [4.8/4.9/4.10 Regression] Wrong folding of - ((unsigned long long) a * (unsigned long long) (unsigned int)-1)

[wschmidt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60930

--- Comment #12 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
I will let the trunk fix burn in for a week before patching 4.8 and 4.9.

Note that this patch will NOT fix whatever is wrong with this test case on
4.7.3 for i686.  I suggest that you open a separate bug report for that case if
you are concerned about 4.7.  The SLSR phase didn't exist in 4.7 so something
else is wrong there.