Author: Richard Plangger <planri...@gmail.com>
Branch: ppc-vsx-support
Changeset: r86934:a867b0a573a4
Date: 2016-09-07 16:03 +0200
http://bitbucket.org/pypy/pypy/changeset/a867b0a573a4/
Log: new test to ensure that operations that only the necessary index
calculations are emitted
diff --git a/rpython/jit/metainterp/optimizeopt/test/test_vecopt.py
b/rpython/jit/metainterp/optimizeopt/test/test_vecopt.py
--- a/rpython/jit/metainterp/optimizeopt/test/test_vecopt.py
+++ b/rpython/jit/metainterp/optimizeopt/test/test_vecopt.py
@@ -1384,5 +1384,23 @@
for arg in op.getfailargs():
assert not arg.is_constant()
+ def test_delay_pure_ops(self):
+ """ Pure operations can be delayed. Often (e.g. for index calc.) this
means they can be omitted.
+ """
+ trace = self.parse_loop("""
+ [p0,i0]
+ f0 = raw_load_f(p0, i0, descr=floatarraydescr)
+ i1 = int_add(i0,8)
+ f1 = raw_load_f(p0, i1, descr=floatarraydescr)
+ i2 = int_add(i1,8)
+ jump(p0,i2)
+ """)
+ self.schedule(trace)
+ self.ensure_operations([
+ 'v0[2xf64] = vec_load_f(p0, i0, 8, 0, descr=floatarraydescr)',
+ 'i2 = int_add(i0, 16)',
+ 'jump(p0,i2)',
+ ], trace)
+
class TestLLtype(BaseTestVectorize, LLtypeMixin):
pass
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