[pypy-commit] pypy guard-value-limit: add example for testing

[Raemi]

Author: Remi Meier <remi.meier at gmail.com>
Branch: guard-value-limit
Changeset: r96774:c6bc0ea32200
Date: 2019-06-07 15:09 +0200
http://bitbucket.org/pypy/pypy/changeset/c6bc0ea32200/

Log:	add example for testing

diff --git a/pypy/goal/overspecialize_type.py b/pypy/goal/overspecialize_type.py
new file mode 100644
--- /dev/null
+++ b/pypy/goal/overspecialize_type.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+import sys
+
+def run(objs, n):
+    res = 0
+    for o in objs:
+        for i in range(n):
+            res += o.f()
+    print res
+
+def thefun():
+    return 1
+
+if __name__ == "__main__":
+    try:
+        num_types = int(sys.argv[1])
+        n = int(sys.argv[2])
+        objs = []
+        for i in range(num_types):
+            exec("""
+class A_%s(object):
+    field = %s
+    #def f(self): return 1#return self.field
+            """ % (i, i))
+            objs.append(eval("A_%s()" % i))
+            # use same 'thefun' for each obj (to avoid more failing guards)
+            setattr(objs[-1], 'f', thefun)
+
+        run(objs, n)
+    except Exception as e:
+        print e
+        print "Arguments: num_types iterations"
+        print "env PYPYLOG=jit-sum:- ./pypy-c --jit guard_value_limit=8 overspecialize_type.py  42 50000"