[Bug middle-end/53676] [4.7/4.8 regression] constant folding regression, shown as slowdown as measured by Adobe's C++Benchmark

[matt at use dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53676

--- Comment #2 from Matt Hargett <matt at use dot net> 2012-06-14 23:00:33 UTC ---
I forgot to mention -- it's the same result on all types, both signed and
unsigned. the int8_t case is (hopefully) representative of the root cause for
all/most of them.