[pypy-svn] r78622 - pypy/branch/jit-unroll-loops/pypy/jit/backend/x86

[arigo at codespeak.net]

Author: arigo
Date: Sun Oct 31 15:56:42 2010
New Revision: 78622

Modified:
   pypy/branch/jit-unroll-loops/pypy/jit/backend/x86/jump.py
Log:
Add an assert that complains explicitly.


Modified: pypy/branch/jit-unroll-loops/pypy/jit/backend/x86/jump.py
==============================================================================
--- pypy/branch/jit-unroll-loops/pypy/jit/backend/x86/jump.py	(original)
+++ pypy/branch/jit-unroll-loops/pypy/jit/backend/x86/jump.py	Sun Oct 31 15:56:42 2010
@@ -7,7 +7,9 @@
     srccount = {}    # maps dst_locations to how many times the same
                      # location appears in src_locations
     for dst in dst_locations:
-        srccount[dst._getregkey()] = 0
+        key = dst._getregkey()
+        assert key not in srccount, "duplicate value in dst_locations!"
+        srccount[key] = 0
     for i in range(len(dst_locations)):
         src = src_locations[i]
         if isinstance(src, ImmedLoc):