[Bug tree-optimization/36119] [4.4 regression] internal compiler error: in vectorizable_assignment, at tree-vect-transform.c:3671

[irar at il dot ibm dot com]

------- 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


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36119