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[Bug tree-optimization/31995] can't determine dependence between p->a[x+i] and p->a[x+i+1]
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 May 2007 09:28:14 -0000
- Subject: [Bug tree-optimization/31995] can't determine dependence between p->a[x+i] and p->a[x+i+1]
- References: <bug-31995-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from pinskia at gcc dot gnu dot org 2007-05-20 10:28 -------
There were no regressions in the vect.exp testsuite on powerpc-darwin. Plus a
quick s/x+i+1/y+i+1/ on this testcase gives the correct answer of
t.c:19: note: not vectorized: can't determine dependence between
p_8(D)->a[D.2030_7] and p_8(D)->a[D.2028_4]
affine dependence test not usable: access function not affine or constant.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31995