[Bug target/103743] PPC: Inefficient equality compare for large 64-bit constants having only 16-bit relevant bits in high part

[guojiufu at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103743

--- Comment #5 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
It would be also ok for the constant that only has 16bits in the middle:
e.g. 0x0000098760000000ULL, we can rotate the constant to 0x9876.