[pypy-commit] pypy gc-disable: encode the gc states in 16 bit instead of 32, to avoid messing with unsigned constants on 32 bit

[antocuni]

Author: Antonio Cuni <anto.c...@gmail.com>
Branch: gc-disable
Changeset: r95508:96498bace39f
Date: 2018-12-19 11:59 +0100
http://bitbucket.org/pypy/pypy/changeset/96498bace39f/

Log:    encode the gc states in 16 bit instead of 32, to avoid messing with
        unsigned constants on 32 bit

diff --git a/rpython/rlib/rgc.py b/rpython/rlib/rgc.py
--- a/rpython/rlib/rgc.py
+++ b/rpython/rlib/rgc.py
@@ -31,13 +31,13 @@
     return _encode_states(1, 0)
 
 def _encode_states(oldstate, newstate):
-    return oldstate << 16 | newstate
+    return oldstate << 8 | newstate
 
 def old_state(states):
-    return (states & 0xFFFF0000) >> 16
+    return (states & 0xFF00) >> 8
 
 def new_state(states):
-    return states & 0xFFFF
+    return states & 0xFF
 
 def is_done(states):
     """
_______________________________________________
pypy-commit mailing list
pypy-commit@python.org
https://mail.python.org/mailman/listinfo/pypy-commit