[PATCH] D141994: [IndVars] Expand icmp in preheader rather than in loop

[Aleksandr Popov via Phabricator via llvm-commits]

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'createInvariantCond' unconditionally builds icmp in the loop block, while it could always do it in preheader


https://reviews.llvm.org/D141994

Files:
  llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
  llvm/test/Transforms/IndVarSimplify/predicated_ranges.ll
  llvm/test/Transforms/IndVarSimplify/turn-to-invariant.ll

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