[PATCH] D86050: [SCEV] Refactor isHighCostExpansionHelper

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Please can you explain why the calculated costs changed for those X86 tests?



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Comment at: llvm/include/llvm/Transforms/Utils/ScalarEvolutionExpander.h:47
+    ParentOpcode(Opc), OperandIdx(Idx), S(S) { }
+  /// Opcode of the instruction that uses the operand.
+  unsigned ParentOpcode;
----------------
`/// LLVM IR instruction opcode`


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