gcc/cp/semantics.c

6254   tree incr = TREE_VEC_ELT (incrv, i);
6305   switch (TREE_CODE (incr))
6311       if (TREE_OPERAND (incr, 0) != iter)
6313 	  incr = error_mark_node;
6316       iter_incr = build_x_unary_op (EXPR_LOCATION (incr),
6317 				    TREE_CODE (incr), iter,
6321       else if (TREE_CODE (incr) == PREINCREMENT_EXPR
6322 	       || TREE_CODE (incr) == POSTINCREMENT_EXPR)
6323 	incr = integer_one_node;
6325 	incr = integer_minus_one_node;
6328       if (TREE_OPERAND (incr, 0) != iter)
6329 	incr = error_mark_node;
6330       else if (TREE_CODE (TREE_OPERAND (incr, 1)) == PLUS_EXPR
6331 	       || TREE_CODE (TREE_OPERAND (incr, 1)) == MINUS_EXPR)
6333 	  tree rhs = TREE_OPERAND (incr, 1);
6338 		incr = error_mark_node;
6347 		  incr = TREE_OPERAND (rhs, 1);
6348 		  incr = cp_convert (TREE_TYPE (diff), incr,
6352 		      incr = build1 (NEGATE_EXPR, TREE_TYPE (diff), incr);
6353 		      incr = fold_if_not_in_template (incr);
6355 		  if (TREE_CODE (incr) != INTEGER_CST
6356 		      && (TREE_CODE (incr) != NOP_EXPR
6357 			  || (TREE_CODE (TREE_OPERAND (incr, 0))
6366 		incr = error_mark_node;
6383 		  incr = TREE_OPERAND (rhs, 0);
6388 	    incr = error_mark_node;
6391 	incr = error_mark_node;
6394       incr = error_mark_node;
6398   if (incr == error_mark_node)
6404   incr = cp_convert (TREE_TYPE (diff), incr, tf_warning_or_error);
6437 					     incr, tf_warning_or_error));
6438       incr = incr_var;
6440 				       iter, PLUS_EXPR, incr,
6451   incr = build_modify_expr (elocus, decl, NULL_TREE, PLUS_EXPR,
6452 			    elocus, incr, NULL_TREE);
6480   TREE_VEC_ELT (incrv, i) = incr;
6498   tree decl = NULL, init, cond, incr, orig_decl = NULL_TREE, block = NULL_TREE;
6511       incr = TREE_VEC_ELT (incrv, i);
6551       if (incr == NULL)
6597       incr = TREE_VEC_ELT (incrv, i);
6599 	TREE_VEC_ELT (orig_incr, i) = incr;
6611       if (incr && TREE_CODE (incr) == MODOP_EXPR)
6614 	    TREE_VEC_ELT (orig_incr, i) = incr;
6615 	  incr = cp_build_modify_expr (TREE_OPERAND (incr, 0),
6616 				       TREE_CODE (TREE_OPERAND (incr, 1)),
6617 				       TREE_OPERAND (incr, 2),
6679       TREE_VEC_ELT (incrv, i) = incr;
6702       incr = TREE_VEC_ELT (OMP_FOR_INCR (omp_for), i);
6704       if (TREE_CODE (incr) != MODIFY_EXPR)
6707       if (TREE_SIDE_EFFECTS (TREE_OPERAND (incr, 1))
6708 	  && BINARY_CLASS_P (TREE_OPERAND (incr, 1))
6711 	  tree t = TREE_OPERAND (TREE_OPERAND (incr, 1), 0);
6716 	    TREE_OPERAND (TREE_OPERAND (incr, 1), 0)
6719 	  t = TREE_OPERAND (TREE_OPERAND (incr, 1), 1);
6724 	    TREE_OPERAND (TREE_OPERAND (incr, 1), 1)
6750       incr = TREE_VEC_ELT (OMP_FOR_INCR (omp_for), 0);
6775       if (TREE_CODE (incr) == MODIFY_EXPR)
6777 	  t = TREE_OPERAND (TREE_OPERAND (incr, 1), 1);
6780 	      TREE_OPERAND (TREE_OPERAND (incr, 1), 1)
6783 	      OMP_CLAUSE_DECL (c) = TREE_OPERAND (TREE_OPERAND (incr, 1), 1);