[clang][AIX] Fix -print-runtime-dir on AIX

[jakeegan]

Currently the option prints a path to a nonexistent directory with the full triple, lib/powerpc64-ibm-aix7.2.0.0. It should only be lib/aix.

[llvmbot]

@llvm/pr-subscribers-clang-driver

@llvm/pr-subscribers-clang

Author: Jake Egan (jakeegan)

Changes

Currently the option prints a path to a nonexistent directory with the full triple, lib/powerpc64-ibm-aix7.2.0.0. It should only be lib/aix.

---

Full diff: https://github.com/llvm/llvm-project/pull/104806.diff

1 Files Affected:

• (modified) clang/lib/Driver/ToolChain.cpp (+2-2)

diff --git a/clang/lib/Driver/ToolChain.cpp b/clang/lib/Driver/ToolChain.cpp
index 0e8577b1115e3..4059730fa3665 100644
--- a/clang/lib/Driver/ToolChain.cpp
+++ b/clang/lib/Driver/ToolChain.cpp
@@ -831,8 +831,8 @@ std::optional<std::string> ToolChain::getRuntimePath() const {
   llvm::sys::path::append(P, "lib");
   if (auto Ret = getTargetSubDirPath(P))
     return Ret;
-  // Darwin does not use per-target runtime directory.
-  if (Triple.isOSDarwin())
+  // Darwin and AIX does not use per-target runtime directory.
+  if (Triple.isOSDarwin() || Triple.isOSAIX())
     return {};
   llvm::sys::path::append(P, Triple.str());
   return std::string(P);

[daltenty]

I think you should add a test similar to this one: https://github.com/llvm/llvm-project/blob/main/clang/test/Driver/darwin-print-runtime-dir.c

[daltenty]

LGTM, thanks!