llvm-project

c39500f8 - Revert "[GVN] MemorySSA for GVN: add optional `AllowMemorySSA`"

Revert "[GVN] MemorySSA for GVN: add optional `AllowMemorySSA`" This reverts commit eb63cd62a4a1907dbd58f12660efd8244e7d81e9. This changes the preservation behavior for MSSA when the new flag is not enabled.