Author: Armin Rigo <ar...@tunes.org>
Branch: jitframe-on-heap
Changeset: r61816:e02ce6381c9e
Date: 2013-02-26 09:52 +0100
http://bitbucket.org/pypy/pypy/changeset/e02ce6381c9e/
Log: Add missing stays_alive(). Otherwise, random registers may be
listed incorrectly.
diff --git a/rpython/jit/backend/x86/regalloc.py
b/rpython/jit/backend/x86/regalloc.py
--- a/rpython/jit/backend/x86/regalloc.py
+++ b/rpython/jit/backend/x86/regalloc.py
@@ -876,13 +876,13 @@
for box, loc in self.rm.reg_bindings.iteritems():
if loc in forbidden_regs:
continue
- if box.type == REF:
+ if box.type == REF and self.rm.stays_alive(box):
assert not noregs
assert isinstance(loc, RegLoc)
val = gpr_reg_mgr_cls.all_reg_indexes[loc.value]
gcmap[val // WORD // 8] |= r_uint(1) << (val % (WORD * 8))
for box, loc in self.fm.bindings.iteritems():
- if box.type == REF:
+ if box.type == REF and self.rm.stays_alive(box):
assert isinstance(loc, FrameLoc)
val = loc.position + JITFRAME_FIXED_SIZE
gcmap[val // WORD // 8] |= r_uint(1) << (val % (WORD * 8))
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