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Commit 1789362d authored by Dan Gohman's avatar Dan Gohman
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Teach SCEVExpander to avoid creating over-indexed GEP indices when 

possible. For example, it now emits

  %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 2, i64 %tmp, i64 1

instead of the equivalent but less obvious

  %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 0, i64 %tmp, i64 19

llvm-svn: 72452
parent 776e4c8d
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