[Bug target/58269] [4.9 Regression] ICE when building libobjc on x86_64-apple-darwin* after revision 201915

[mikestump at comcast dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58269

--- Comment #21 from Mike Stump <mikestump at comcast dot net> ---
Don't know…  I'd assume there exists a paper somewhere that says it.  :-)