[llvm] [lli] Honor --jit-linker-kind=rtdyld on platforms that default to jitlink (PR #167860)

[Stefan Gränitz via llvm-commits]

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@@ -1161,18 +1170,10 @@ static int runOrcJIT(const char *ProgName) {
   }
 
   // Resolve and run the main function.
+  using MainFnTy = int(int, char *[]);
   auto MainAddr = ExitOnErr(J->lookup(EntryFunc));
-  int Result;
-
-  if (EPC) {
-    // ExecutorProcessControl-based execution with JITLink.
-    Result = ExitOnErr(EPC->runAsMain(MainAddr, InputArgv));
-  } else {
-    // Manual in-process execution with RuntimeDyld.
-    using MainFnTy = int(int, char *[]);
-    auto MainFn = MainAddr.toPtr<MainFnTy *>();
-    Result = orc::runAsMain(MainFn, InputArgv, StringRef(InputFile));
-  }
+  auto MainFn = MainAddr.toPtr<MainFnTy *>();
+  int Result = orc::runAsMain(MainFn, InputArgv, StringRef(InputFile));
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weliveindetail wrote:

It only looks like that, but we never implemented it. `launchRemote()` is only wired up in the MCJIT case: https://github.com/llvm/llvm-project/blob/907e8514b188abb0e4d4d16b1e0e847a163762cd/llvm/tools/lli/lli.cpp#L705-L706 I think it's better to take this change and avoid future misunderstandings.

https://github.com/llvm/llvm-project/pull/167860