------- Comment #2 from dorit at gcc dot gnu dot org 2007-09-10 09:08 -------
Testing this patch (it's a bug in the fix for PR33301. I accidentally treated
TYPE_SIZE_UNIT as a constant, whereas it's really a tree...):
Index: tree-vect-analyze.c
===================================================================
*** tree-vect-analyze.c (revision 128322)
--- tree-vect-analyze.c (working copy)
*************** vect_determine_vectorization_factor (loo
*** 242,252 ****
operation = GIMPLE_STMT_OPERAND (stmt, 1);
if (TREE_CODE (operation) == NOP_EXPR
|| TREE_CODE (operation) == CONVERT_EXPR
! || TREE_CODE (operation) == WIDEN_MULT_EXPR)
{
tree rhs_type = TREE_TYPE (TREE_OPERAND (operation, 0));
! if (TYPE_SIZE_UNIT (rhs_type) < TYPE_SIZE_UNIT (scalar_type))
! scalar_type = TREE_TYPE (TREE_OPERAND (operation, 0));
}
if (vect_print_dump_info (REPORT_DETAILS))
--- 242,253 ----
operation = GIMPLE_STMT_OPERAND (stmt, 1);
if (TREE_CODE (operation) == NOP_EXPR
|| TREE_CODE (operation) == CONVERT_EXPR
! || TREE_CODE (operation) == WIDEN_MULT_EXPR)
{
tree rhs_type = TREE_TYPE (TREE_OPERAND (operation, 0));
! if (TREE_INT_CST_LOW (TYPE_SIZE_UNIT (rhs_type)) <
! TREE_INT_CST_LOW (TYPE_SIZE_UNIT (scalar_type)))
! scalar_type = rhs_type;
}
if (vect_print_dump_info (REPORT_DETAILS))
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33373
