[llvm] [Support] Always scale InstructionCost::Value (PR #178962)

[Pengcheng Wang via llvm-commits]

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@@ -59,6 +59,9 @@ class InstructionCost {
       State = Invalid;
   }
 
+  // Matches GCC, can use shift rather than multiply/divide to scale
+  static constexpr CostType ScalingFactor = 4;
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wangpc-pp wrote:

Would it be more intuitive to rename `ScalingFactor` to `CostGranularity`?

https://github.com/llvm/llvm-project/pull/178962