[Bug tree-optimization/51737] [4.6 Regression] g++ crashes (internal compiler error: Segmentation fault) when compiling quickbook

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51737

--- Comment #12 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-29 
12:09:19 UTC ---
The question is why we call delete_unreachable_blocks from
tree_function_versioning at all.  We do not bother updating the
callgraph anywhere else.

Honza, you added that beast?