Re: [PING][PATCH 2/3] retire mem_signal_fence pattern

[Alexander Monakov]

On Thu, 31 Aug 2017, Jeff Law wrote:
> This is OK.
> 
> What's the point of the delete_insns_since calls in patch #3?

Deleting the first barrier when maybe_expand_insn failed.
Other functions in the file use a similar approach.

Thanks.
Alexander