[llvm] [LV][RFC] Generating conditional VPBB that will be skip when the mask is inactive in VPlan. (PR #141900)

[Luke Lau via llvm-commits]

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@@ -143,6 +143,8 @@ class RISCVTTIImpl final : public BasicTTIImplBase<RISCVTTIImpl> {
 
   bool shouldConsiderVectorizationRegPressure() const override { return true; }
 
+  bool preferControlFlow() const override { return false; }
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lukel97 wrote:

Is there any point overriding this if it just returns false?

https://github.com/llvm/llvm-project/pull/141900