[Bug bootstrap/79198] [7 Regression] r244802 causes out of memory during PGO bootstrap

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79198

--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Created attachment 40567
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40567&action=edit
unreduced testcase

Here is a testcase:

 g++ -fno-PIE -c -march=amdfam10 -O3 -pipe -fprofile-use -fno-exceptions
-fno-rtti gimple-ssa-backprop.ii