[llvm] [llubi] Implements common library functions (PR #190147)

[Yingwei Zheng via llvm-commits]

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@@ -257,11 +286,13 @@ class Context {
   /// initialization).
   bool initGlobalValues();
   /// Execute the function \p F with arguments \p Args, and store the return
-  /// value in \p RetVal if the function is not void.
-  /// Returns true if the function executed successfully. False indicates an
-  /// error occurred during execution.
+  /// value in \p RetVal if the function is not void. The exit information is
+  /// store in \p ExitInfo.
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dtcxzyw wrote:

```suggestion
  /// stored in \p ExitInfo.
```

https://github.com/llvm/llvm-project/pull/190147