[Bug target/122323] [14/15/16 Regression] Failed to optimize copysign

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122323

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
This is triggered by r14-5284-g3f176e1adc6bc9.