Add a check for clang-nvlink-wrapper

Author: omarahmed1111

clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp

@@ -1542,8 +1542,14 @@ Expected<StringRef> clang(ArrayRef<StringRef> InputFiles, const ArgList &Args,
   if (!Triple.isNVPTX() && !Triple.isSPIRV())
     CmdArgs.push_back("-Wl,--no-undefined");
 
-  if (IsSYCLKind && Triple.isNVPTX())
+  if (IsSYCLKind && Triple.isNVPTX()) {
+    Expected<std::string> ClangNVLinkWrapperPath =
+        findProgram("clang-nvlink-wrapper", {getMainExecutable("clang-nvlink-wrapper")});
+    if (!ClangNVLinkWrapperPath)
+      return ClangNVLinkWrapperPath.takeError();
     CmdArgs.push_back("-Wl,--lto-emit-asm");
+  }
+
   for (StringRef InputFile : InputFiles)
     CmdArgs.push_back(InputFile);