v0.12.55

LoopVectorization v0.12.55

Diff since v0.12.54

Closed issues:

• Segfault in complex finite difference stencil in multithreaded (#305)
• @turbo on loop with sin functions gives error (#307)

Merged pull requests:

• Allow more than 256 operations in a loopset (#308) (@chriselrod)