[Bug target/56513] Wrong code generation with -O3 on ARM

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56513

--- Comment #5 from Mikael Pettersson <mikpe at it dot uu.se> 2013-03-03 23:26:49 UTC ---
The wrong-code stopped for 4.8 with r188526, the introduction and enabling of
-ftree-coalesce-vars.  At that point the wrong-code reappears with -O3
-fno-tree-coalesce-vars, however with current trunk those options give correct
code.  I'll investigate some more tomorrow.