[Bug c++/51323] g++ confuses this with function argument in optimized call

[dak at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51323

--- Comment #1 from David Kastrup <dak at gnu dot org> 2011-11-28 11:32:46 UTC ---
-fno-optimize-sibling-calls avoids the problematic optimization.  For no good
reason at all, -fkeep-inline-functions, documented to do a completely unrelated
non-optimization (namely emitting inline functions even when all uses of them
had been inlined), will also switch off the problematic tail call optimization.