[llvm] [LoopVectorize] Further improve cost model for early exit loops (PR #126235)

[David Sherwood via llvm-commits]

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@@ -10258,7 +10298,7 @@ static bool areRuntimeChecksProfitable(GeneratedRTChecks &Checks,
 
   // Skip vectorization if the expected trip count is less than the minimum
   // required trip count.
-  if (auto ExpectedTC = getSmallBestKnownTC(PSE, L)) {
+  if (auto ExpectedTC = getSmallBestKnownTC(PSE, CM.TheLoop)) {
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david-arm wrote:

Again, it is related because we don't have a `L` function argument.

https://github.com/llvm/llvm-project/pull/126235