[llvm] Add regalloc team to CODEOWNERS (PR #65208)

[Matt Arsenault via llvm-commits]

================
@@ -395,6 +395,36 @@ flang/**/CodeGen/ @llvm/pr-subscribers-flang-codegen
 /llvm/utils/TableGen/CodeGenDAG* @llvm/pr-subscribers-selectiondag
 /llvm/utils/TableGen/DAGISel* @llvm/pr-subscribers-selectiondag
 
+# register allocation
+/llvm/include/CodeGen/RegAlloc* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/*Regalloc* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/Register* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/LiveReg* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/LiveInterval* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/LiveVariables* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/LiveRange* @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/SlotIndexes.h @llvm/pr-subscribers-regalloc
+/llvm/include/CodeGen/VirtRegMap.h @llvm/pr-subscribers-regalloc
+/llvm/include/PBQP/ @llvm/pr-subscribers-regalloc
+/llvm/include/PBQPRAConstraint.h @llvm/pr-subscribers-regalloc
+/llvm/include/llvm/CodeGen/Spiller.h @llvm/pr-subscribers-regalloc
+/llvm/lib/CodeGen/*RegAlloc* @llvm/pr-subscribers-regalloc
----------------
arsenm wrote:

I have no idea how to test if this is working or not

https://github.com/llvm/llvm-project/pull/65208