[Bug target/64835] -fno-ipa-cp is inconsistently supported when attributes optimize or target are used

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64835

--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
I believe if the test fails there is a real bug on still affected targets.
For fixing an XPASS I'd say adjusting the targets that XFAIL is the proper
action (short of analyzing and fixing the actual bug).