Author: Hakan Ardo <[email protected]>
Branch: jit-short_from_state
Changeset: r44368:1bd69534d72f
Date: 2011-05-22 13:45 +0200
http://bitbucket.org/pypy/pypy/changeset/1bd69534d72f/
Log: revrese ops will only be propagated if the resulting op survives by
other means
diff --git a/pypy/jit/metainterp/test/test_optimizeopt.py
b/pypy/jit/metainterp/test/test_optimizeopt.py
--- a/pypy/jit/metainterp/test/test_optimizeopt.py
+++ b/pypy/jit/metainterp/test/test_optimizeopt.py
@@ -4203,11 +4203,13 @@
jump(p4364)
"""
expected = """
- [i0, i1]
+ [i0]
+ i1 = int_sub_ovf(i0, 1)
+ guard_no_overflow() []
escape(i1)
i2 = int_add_ovf(i0, 1)
guard_no_overflow() []
- jump(i2, i0)
+ jump(i2)
"""
self.optimize_loop(ops, expected)
diff --git a/pypy/module/pypyjit/test_pypy_c/test_pypy_c_new.py
b/pypy/module/pypyjit/test_pypy_c/test_pypy_c_new.py
--- a/pypy/module/pypyjit/test_pypy_c/test_pypy_c_new.py
+++ b/pypy/module/pypyjit/test_pypy_c/test_pypy_c_new.py
@@ -1468,7 +1468,10 @@
...
i17 = int_and(i14, 255)
f18 = getarrayitem_raw(i8, i17, descr=...)
- f20 = getarrayitem_raw(i8, i9, descr=...)
+ i19s = int_sub_ovf(i6, 1)
+ guard_no_overflow(descr=...)
+ i22s = int_and(i19s, 255)
+ f20 = getarrayitem_raw(i8, i22s, descr=...)
f21 = float_add(f18, f20)
f23 = getarrayitem_raw(i8, i10, descr=...)
f24 = float_add(f21, f23)
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