Author: Hakan Ardo <[email protected]>
Branch: jit-short_from_state
Changeset: r44737:5dda9e0ace7f
Date: 2011-06-06 13:22 +0200
http://bitbucket.org/pypy/pypy/changeset/5dda9e0ace7f/
Log: make sure guards for a box are emited before the box is used
diff --git a/pypy/jit/metainterp/optimizeopt/unroll.py
b/pypy/jit/metainterp/optimizeopt/unroll.py
--- a/pypy/jit/metainterp/optimizeopt/unroll.py
+++ b/pypy/jit/metainterp/optimizeopt/unroll.py
@@ -298,7 +298,7 @@
for result, op in self.short_boxes.items():
if op is not None:
- for op in self.getvalue(result).make_guards(result):
+ if len(self.getvalue(result).make_guards(result)) > 0:
self.add_op_to_short(op, short, short_seen)
self.optimizer.flush()
@@ -369,6 +369,10 @@
guard = ResOperation(rop.GUARD_NO_OVERFLOW, [], None)
self.add_op_to_short(guard, short, short_seen)
+ if op.result in self.short_boxes:
+ for guard in self.getvalue(op.result).make_guards(op.result):
+ self.add_op_to_short(guard, short, short_seen)
+
return newop.result
def import_box(self, box, inputargs, short, short_jumpargs,
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