[Bug c/79357] Doubling a single complex float gives inefficient code

[drraph at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79357

--- Comment #1 from Raphael C <drraph at gmail dot com> ---
I omitted 

.L_2il0floatpacket.1:
        .long   0x40000000,0x40000000,0x00000000,0x00000000
        .long   0x40000000,0x00000000

from the assembly. In other words it just multiplies by 2.0f.