Merge pull request #140 from frasercrmck/fix-llvm-17-dbg

[compiler] Clear retained nodes from artificial sub-programs

modules/compiler/utils/source/pass_functions.cpp

@@ -659,7 +659,17 @@ static llvm::Function *createKernelWrapperFunctionImpl(
   // copy debug info for function over
   if (auto *SP = F.getSubprogram()) {
     llvm::DIBuilder DIB(*F.getParent());
-    auto *NewSP = DIB.createArtificialSubprogram(SP);
+    llvm::DISubprogram *const NewSP = DIB.createArtificialSubprogram(SP);
+#if LLVM_VERSION_GREATER_EQUAL(17, 0)
+    // Wipe the list of retained nodes, as this new function is a wrapper over
+    // the old one and does not itself contain/retain any of the wrapped
+    // function's nodes.
+    NewSP->replaceRetainedNodes({});
+#else
+    // This does the same as the above, but there's no cleaner API with which
+    // to do it.
+    NewSP->replaceOperandWith(7, nullptr);
+#endif
     NewFunction.setSubprogram(NewSP);
   }