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

[David Sherwood via llvm-commits]

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@@ -1578,7 +1475,7 @@ if.then:
 loop.latch:
   %iv.next = add i64 %iv, 1
   %ec = icmp eq i64 %iv, %N
-  br i1 %ec, label %exit, label %loop.header
+  br i1 %ec, label %exit, label %loop.header, !llvm.loop !1
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david-arm wrote:

This is required to keep the test the same as before.

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