[llvm-branch-commits] [llvm] [CodeGen] Fix multiple connected component issue in rematerializer (PR #186674)

[Quentin Colombet via llvm-branch-commits]

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@@ -160,6 +160,12 @@ class LiveIntervals {
     return LI;
   }
 
+  LiveInterval &createAndComputeVirtRegInterval(Register Reg, bool &NeedSplit) {
+    LiveInterval &LI = createEmptyInterval(Reg);
+    NeedSplit = computeVirtRegInterval(LI);
+    return LI;
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qcolombet wrote:

Do you have further use of this API down the line?
I'm wondering if this new variant is worth it. The LiveIntervals API is already clunky to use.

https://github.com/llvm/llvm-project/pull/186674