[llvm] Port gisel cse analysis to npm (PR #179815)

[Aiden Grossman via llvm-commits]

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@@ -445,6 +445,19 @@ GISelCSEAnalysisWrapper::get(std::unique_ptr<CSEConfigBase> CSEOpt,
   }
   return Info;
 }
+
+AnalysisKey GISelCSEAnalysis::Key;
+
+GISelCSEAnalysis::Result
+GISelCSEAnalysis::run(MachineFunction &MF, MachineFunctionAnalysisManager &) {
+  auto Info = std::make_unique<GISelCSEInfo>();
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boomanaiden154 wrote:

Wouldn't hurt to spell out the type here.

https://github.com/llvm/llvm-project/pull/179815