[𝘀𝗽𝗿] initial version

Created using spr 1.3.5
diff --git a/clang/utils/perf-training/perf-helper.py b/clang/utils/perf-training/perf-helper.py
index 80c6356..b369811 100644
--- a/clang/utils/perf-training/perf-helper.py
+++ b/clang/utils/perf-training/perf-helper.py
@@ -65,9 +65,11 @@
             + "\tMerges all fdata files from path into output."
         )
         return 1
-    cmd = [args[0], "-o", args[1]]
-    cmd.extend(findFilesWithExtension(args[2], "fdata"))
-    subprocess.check_call(cmd)
+    inputs = findFilesWithExtension(args[2], "fdata")
+    subprocess.check_call([args[0], inputs, "-o", args[1]])
+    # Remove input fdata files to save space.
+    for filename in inputs:
+        os.remove(filename)
     return 0