Author: Armin Rigo <[email protected]>
Branch: stringbuilder-perf
Changeset: r72017:ea18dbb1e055
Date: 2014-06-10 18:48 +0200
http://bitbucket.org/pypy/pypy/changeset/ea18dbb1e055/
Log: Isolated the next jit-only stringbuilder bug
diff --git a/rpython/jit/metainterp/test/test_string.py
b/rpython/jit/metainterp/test/test_string.py
--- a/rpython/jit/metainterp/test/test_string.py
+++ b/rpython/jit/metainterp/test/test_string.py
@@ -804,6 +804,25 @@
res = self.meta_interp(f, [10], backendopt=True)
assert res == 0
+ def test_stringbuilder_bug3(self):
+ jitdriver = JitDriver(reds=['n'], greens=[])
+ IN = ['a' * 37, 'b' * 38, '22', '1', '333']
+ JOINED = ''.join(IN)
+ def f(n):
+ while n > 0:
+ jitdriver.jit_merge_point(n=n)
+ sb = StringBuilder(36)
+ for s in IN:
+ sb.append(s)
+ s = sb.build()
+ if s != JOINED:
+ raise ValueError
+ n -= 1
+ return n
+ f(10)
+ res = self.meta_interp(f, [10], backendopt=True)
+ assert res == 0
+
def test_shrink_array(self):
jitdriver = JitDriver(reds=['result', 'n'], greens=[])
_str, _StringBuilder = self._str, self._StringBuilder
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