Author: Armin Rigo <[email protected]>
Branch: fast-slowpath
Changeset: r65737:332b124416bb
Date: 2013-07-28 13:37 +0200
http://bitbucket.org/pypy/pypy/changeset/332b124416bb/
Log: Ah ha, found out that there was an assert preventing accesses below
the value of esp, which was just silently killed. Reintroduce the
assert and write comments.
diff --git a/rpython/jit/backend/x86/regloc.py
b/rpython/jit/backend/x86/regloc.py
--- a/rpython/jit/backend/x86/regloc.py
+++ b/rpython/jit/backend/x86/regloc.py
@@ -89,7 +89,8 @@
_location_code = 's'
def __init__(self, value, type):
- self.value = value
+ assert value >= 0 # accessing values < 0 is forbidden on x86-32.
+ self.value = value # (on x86-64 we could allow values down to -128)
self.type = type
def _getregkey(self):
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