[llvm] [LoopVectorize] Add cost of generating tail-folding mask to the loop (PR #130565)

[David Sherwood via llvm-commits]

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@@ -78,11 +78,16 @@ loop:
   store i64 0, ptr %arrayidx13, align 8
   %iv.next = add nuw nsw i64 %iv, 1
   %exitcond.not = icmp eq i64 %iv.next, 3
-  br i1 %exitcond.not, label %exit, label %loop
+  br i1 %exitcond.not, label %exit, label %loop, !llvm.loop !1
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david-arm wrote:

Done!

https://github.com/llvm/llvm-project/pull/130565