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[Bug tree-optimization/32377] can't determine dependence (source/destination overlap without more than size)
- From: "irar at il dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 8 Jul 2007 10:00:10 -0000
- Subject: [Bug tree-optimization/32377] can't determine dependence (source/destination overlap without more than size)
- References: <bug-32377-33@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #13 from irar at il dot ibm dot com 2007-07-08 10:00 -------
Hi Sebastian,
I was going to submit the attached patch, but now the analysis fails with
"affine-affine test failed: missing iteration counts" and distance vector is
not built (so the loop in this PR cannot be vectorized even with the addition
of DDR_REVERSED_P). This was caused by your patch to PR 32457
http://gcc.gnu.org/viewcvs?view=rev&revision=126305. Is there any way to
restore the previous behaviour for this case?
Thanks,
Ira
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32377