https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70427
--- Comment #3 from Andi Kleen <andi-gcc at firstfloor dot org> --- Analyzing the code more it looks like the compiler generates it correctly, the edge returned should not be 0 here.
andi-gcc at firstfloor dot org Sun, 27 Mar 2016 19:21:40 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70427
--- Comment #3 from Andi Kleen <andi-gcc at firstfloor dot org> --- Analyzing the code more it looks like the compiler generates it correctly, the edge returned should not be 0 here.