[clang] [Flang] Add fortran runtime libraries to AIX driver (PR #75921)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (madanial0)

<details>
<summary>Changes</summary>

Add fortran runtime libraries to flang-new on AIX

---
Full diff: https://github.com/llvm/llvm-project/pull/75921.diff


1 Files Affected:

- (modified) clang/lib/Driver/ToolChains/AIX.cpp (+6) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/AIX.cpp b/clang/lib/Driver/ToolChains/AIX.cpp
index aed8734b2bab0f..71f93bca374852 100644
--- a/clang/lib/Driver/ToolChains/AIX.cpp
+++ b/clang/lib/Driver/ToolChains/AIX.cpp
@@ -328,6 +328,12 @@ void aix::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     }
   }
 
+  if (D.IsFlangMode()) {
+    addFortranRuntimeLibraryPath(ToolChain, Args, CmdArgs);
+    addFortranRuntimeLibs(ToolChain, Args, CmdArgs);
+    CmdArgs.push_back("-lm");
+    CmdArgs.push_back("-lpthread");
+  }
   const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
   C.addCommand(std::make_unique<Command>(JA, *this, ResponseFileSupport::None(),
                                          Exec, CmdArgs, Inputs, Output));

``````````

</details>


https://github.com/llvm/llvm-project/pull/75921