[llvm] Add m_SelectCCLike matcher to match SELECT_CC or SELECT with SETCC (PR #149646)

[Simon Pilgrim via llvm-commits]

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@@ -578,6 +578,16 @@ m_InsertSubvector(const LHS &Base, const RHS &Sub, const IDX &Idx) {
   return TernaryOpc_match<LHS, RHS, IDX>(ISD::INSERT_SUBVECTOR, Base, Sub, Idx);
 }
 
+template <typename LTy, typename RTy, typename TTy, typename FTy, typename CCTy>
+inline auto m_SelectCC(LTy L, RTy R, TTy T, FTy F, CCTy CC) {
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RKSimon wrote:

still need to by ref `m_SelectCC(LTy &L, RTy &R, TTy &T, FTy &F, CCTy &CC)` (just not rvalue)

https://github.com/llvm/llvm-project/pull/149646