[Bug target/63610] OSX 10.10 (Yosemite) segfault in MPIR testsuite with -O0 or -O1

[vbraun at physics dot upenn.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63610

--- Comment #3 from Volker Braun <vbraun at physics dot upenn.edu> ---
Created attachment 33773
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33773&action=edit
gdb log of the failing testcase