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

[chrbr at gcc dot gnu.org]

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

--- Comment #4 from chrbr at gcc dot gnu.org ---
yes, I thought that this test was target independent. tested on x86, arm, sh4.

I'll checking what happens with aarch64