[llvm] [RegisterCoalescer] Avoid retrying high-cost joins for large segmented intervals (PR #207976)

[via llvm-commits]

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@@ -114,6 +114,12 @@ static cl::opt<unsigned> LargeIntervalSizeThreshold(
              "it is regarded as a large interval. "),
     cl::init(100));
 
+static cl::opt<unsigned> LargeIntervalSegmentThreshold(
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Jolyon0202 wrote:

Done. I've reverted the changes here, and the test results are nearly identical.

https://github.com/llvm/llvm-project/pull/207976