Nadav Rotem 9753f0b9b4 Teach InstCombine to canonicalize [SU]div+[AL]shl patterns.
For example:
  %1 = lshr i32 %x, 2
  %2 = udiv i32 %1, 100

rdar://12182093




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162743 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28 10:01:43 +00:00
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2012-07-19 00:11:40 +00:00