[Reassociate] Use a range loop for clarity. NFCI.
authorDavide Italiano <davide@freebsd.org>
Mon, 7 Aug 2017 01:57:21 +0000 (01:57 +0000)
committerDavide Italiano <davide@freebsd.org>
Mon, 7 Aug 2017 01:57:21 +0000 (01:57 +0000)
commitb53b075bb17ff2f22ea0478304f61106ff130884
tree56efe47b793ac854ee92a09c56e089627afefa93
parenta5cdc22e70936470f756e42aab9fa6546d2485a1
[Reassociate] Use a range loop for clarity. NFCI.

While here, rename `i` to `Rank` as the latter is more
self-explanatory (and this code also uses `I` two lines below to
identify an Instruction).

llvm-svn: 310238
llvm/lib/Transforms/Scalar/Reassociate.cpp