[Bug middle-end/55481] [4.8 regression] -O2 generates a wrong-code infinite loop in C++Benchmark's simple_types_constant_folding int8 xor test

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55481



--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> 2012-11-27 
10:41:34 UTC ---

Created attachment 28790

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28790

reduced testcase



Reduced testcase attached.