[PATCH] D38374: [memcpyopt] Memcpy-memcpy dependence isn't detected across basic blocks

[Daniel Berlin via Phabricator via llvm-commits]

dberlin added a comment.

1. non-local calls in GVN are the cause of pretty much all of it's massive slowdown.

Have you measured the effect this has on larger memory-using testcases?

2. If you are interested, someone already ported it to memoryssa:

https://reviews.llvm.org/D26739

(Bryant appears to have disappeared, sadly :( )


Repository:
  rL LLVM

https://reviews.llvm.org/D38374