[Bug bootstrap/58340] [4.9 regression] gcc/cp/pt.c:7064:1: internal compiler error: in propagate_threaded_block_debug_into, at tree-ssa-threadedge.c:623

[law at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58340

--- Comment #10 from Jeffrey A. Law <law at redhat dot com> ---
Zhengong's testcase fails for me, so I'll work with that first.