Both tramp3d-v4 and Polyhedron gas_dyn regress in runtime with the mem-ssa merge. See http://www.suse.de/~gcctest/c++bench/polyhedron/polyhedron-summary.txt-2-0.html and http://www.suse.de/~gcctest/c++bench/tramp3d/split-run.html
I almost think we can declare this one as fixed. Richard, what do you think?
Fixed.