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This caused PR35519. > [memcpyopt] Teach memcpyopt to optimize across basic blocks > > This teaches memcpyopt to make a non-local memdep query when a local query > indicates that the dependency is non-local. This notably allows it to > eliminate many more llvm.memcpy calls in common Rust code, often by 20-30%. > > Fixes PR28958. > > Differential Revision: https://reviews.llvm.org/D38374 > > [memcpyopt] Commit file missed in r319482. > > This change was meant to be included with r319482 but was accidentally > omitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319873 91177308-0d34-0410-b5e6-96231b3b80d8