[libc-commits] [clang] [compiler-rt] [flang] [libc] [libcxx] [libcxxabi] [libunwind] [llvm] [openmp] [Flang] Move builtin .mod generation into runtimes (Reapply #137828) (PR #171515)

[Matt Arsenault via libc-commits]

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@@ -6755,6 +6755,17 @@ std::string Driver::GetFilePath(StringRef Name, const ToolChain &TC) const {
   if (llvm::sys::fs::exists(Twine(P)))
     return std::string(P);
 
+  // With Flang, also look for instrinsic modules
+  if (IsFlangMode()) {
+    if (std::optional<std::string> IntrPath =
+            TC.getDefaultIntrinsicModuleDir()) {
+      SmallString<128> P(*IntrPath);
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arsenm wrote:

build as std::string to start if you're returning std::string? 

https://github.com/llvm/llvm-project/pull/171515