Author: Carl Friedrich Bolz <cfb...@gmx.de>
Branch: value-profiling
Changeset: r78981:d34953857d58
Date: 2015-08-14 12:10 +0200
http://bitbucket.org/pypy/pypy/changeset/d34953857d58/
Log: (cfbolz, arigo around): deal with non-constant classes in
record_exact_class
diff --git a/rpython/jit/metainterp/optimizeopt/rewrite.py
b/rpython/jit/metainterp/optimizeopt/rewrite.py
--- a/rpython/jit/metainterp/optimizeopt/rewrite.py
+++ b/rpython/jit/metainterp/optimizeopt/rewrite.py
@@ -334,7 +334,9 @@
def optimize_RECORD_EXACT_CLASS(self, op):
value = self.getvalue(op.getarg(0))
expectedclassbox = op.getarg(1)
- assert isinstance(expectedclassbox, Const)
+ if not isinstance(expectedclassbox, Const):
+ # can't optimize
+ return
realclassbox = value.get_constant_class(self.optimizer.cpu)
if realclassbox is not None:
assert realclassbox.same_constant(expectedclassbox)
diff --git a/rpython/jit/metainterp/optimizeopt/test/test_optimizeopt.py
b/rpython/jit/metainterp/optimizeopt/test/test_optimizeopt.py
--- a/rpython/jit/metainterp/optimizeopt/test/test_optimizeopt.py
+++ b/rpython/jit/metainterp/optimizeopt/test/test_optimizeopt.py
@@ -7098,6 +7098,20 @@
jump(p1)
"""
self.optimize_loop(ops, expected)
+ ops = """
+ [p0, i0]
+ p1 = getfield_gc(p0, descr=nextdescr)
+ record_exact_class(p1, i0)
+ guard_class(p1, ConstClass(node_vtable)) []
+ jump(p1, i0)
+ """
+ expected = """
+ [p0, i0]
+ p1 = getfield_gc(p0, descr=nextdescr)
+ guard_class(p1, ConstClass(node_vtable)) []
+ jump(p1, i0)
+ """
+ self.optimize_loop(ops, expected)
def test_quasi_immut(self):
ops = """
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