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[Bug tree-optimization/36119] [4.4 regression] internal compiler error: in vectorizable_assignment, at tree-vect-transform.c:3671
- 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: 4 May 2008 11:13:19 -0000
- Subject: [Bug tree-optimization/36119] [4.4 regression] internal compiler error: in vectorizable_assignment, at tree-vect-transform.c:3671
- References: <bug-36119-6642@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from irar at il dot ibm dot com 2008-05-04 11:13 -------
In my dump this stmt is vectorized ok:
bug.F:14: note: ------>vectorizing statement: D.1055_23 = ((D.1054_22))
bug.F:14: note: transform statement.
bug.F:14: note: vect_is_simple_use: operand ((D.1054_22))
bug.F:14: note: non-associatable copy.
bug.F:14: note: def_stmt: D.1054_22 = D.1051_19 - D.1053_21
bug.F:14: note: type of def: 3.
bug.F:14: note: transform assignment.
bug.F:14: note: vect_get_vec_def_for_operand: ((D.1054_22))
bug.F:14: note: vect_is_simple_use: operand ((D.1054_22))
bug.F:14: note: non-associatable copy.
bug.F:14: note: def_stmt: D.1054_22 = D.1051_19 - D.1053_21
bug.F:14: note: type of def: 3.
bug.F:14: note: def = D.1054_22 def_stmt = D.1054_22 = D.1051_19 - D.1053_21
bug.F:14: note: add new stmt: vect_var_.63_162 = vect_var_.62_161
I also see that vectorization factor is 1 in your dump. I think that this is
the problem here, since ncopies = vf/nunits (nunits number of elements in the
vector of this type).
Could you please attach the vectorizer dump file?
Ira
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36119