[Bug testsuite/65394] [5 Regression] r221327 causes gcc.dg/ipa/pr63569.c to fail

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65394

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Yep, a testsuite issue - we now get a mismatch earlier because the non-volatile
case turns out to be pure.