Add a performance measurement testbench.

artiq/compiler/testbench/perf.py

@@ -0,0 +1,33 @@
+import sys, os, time
+from pythonparser import diagnostic
+from .. import Module
+from ..targets import OR1KTarget
+
+def main():
+    if not len(sys.argv) > 1:
+        print("Expected at least one module filename", file=sys.stderr)
+        exit(1)
+
+    def process_diagnostic(diag):
+        print("\n".join(diag.render()), file=sys.stderr)
+        if diag.level in ("fatal", "error"):
+            exit(1)
+
+    engine = diagnostic.Engine()
+    engine.process = process_diagnostic
+
+    modules = []
+    for filename in sys.argv[1:]:
+        modules.append(Module.from_filename(filename, engine=engine))
+
+    runs = 100
+    start = time.perf_counter()
+    for _ in range(runs):
+        llobj = OR1KTarget().compile_and_link(modules)
+    end = time.perf_counter()
+
+    print("{} compilation runs: {:.2f}s, {:.2f}ms/run".format(
+            runs, end - start, (end - start) / runs * 1000))
+
+if __name__ == "__main__":
+    main()