[pypy-svn] r38067 - pypy/branch/jit-virtual-world/pypy/jit/goal/demo

[arigo at codespeak.net]

Author: arigo
Date: Wed Feb  7 16:08:50 2007
New Revision: 38067

Added:
   pypy/branch/jit-virtual-world/pypy/jit/goal/demo/   (props changed)
   pypy/branch/jit-virtual-world/pypy/jit/goal/demo/f1.py   (contents, props changed)
   pypy/branch/jit-virtual-world/pypy/jit/goal/demo/factorial.py   (contents, props changed)
   pypy/branch/jit-virtual-world/pypy/jit/goal/demo/factorialrec.py   (contents, props changed)
Log:
Demo scripts whose machine code can be looked at (run with PYPYJITLOG=filename).


Added: pypy/branch/jit-virtual-world/pypy/jit/goal/demo/f1.py
==============================================================================
--- (empty file)
+++ pypy/branch/jit-virtual-world/pypy/jit/goal/demo/f1.py	Wed Feb  7 16:08:50 2007
@@ -0,0 +1,30 @@
+import time
+
+
+ZERO = 0
+
+def f1(n):
+    "Arbitrary test function."
+    i = 0
+    x = 1
+    while i<n:
+        j = ZERO
+        while j<=i:
+            j = j + 1
+            x = x + (i&j)
+        i = i + 1
+    return x
+
+
+import pypyjit
+pypyjit.enable(f1.func_code)
+
+res = f1(2117)
+print res
+N = 5
+start = time.time()
+for i in range(N):
+    assert f1(2117) == res
+end = time.time()
+
+print '%d iterations, time per iteration: %s' % (N, (end-start)/N)

Added: pypy/branch/jit-virtual-world/pypy/jit/goal/demo/factorial.py
==============================================================================
--- (empty file)
+++ pypy/branch/jit-virtual-world/pypy/jit/goal/demo/factorial.py	Wed Feb  7 16:08:50 2007
@@ -0,0 +1,14 @@
+import time
+
+
+def f(n):
+    r = 1
+    while n > 1:
+        r *= n
+        n -= 1
+    return r
+
+import pypyjit
+pypyjit.enable(f.func_code)
+
+print f(7)

Added: pypy/branch/jit-virtual-world/pypy/jit/goal/demo/factorialrec.py
==============================================================================
--- (empty file)
+++ pypy/branch/jit-virtual-world/pypy/jit/goal/demo/factorialrec.py	Wed Feb  7 16:08:50 2007
@@ -0,0 +1,13 @@
+import time
+
+
+def f(n):
+    if n > 1:
+        return n * f(n-1)
+    else:
+        return 1
+
+import pypyjit
+pypyjit.enable(f.func_code)
+
+print f(7)