- case 2:
- {
- pre_expr op1 = get_or_alloc_expr_for (nary->op[0]);
- pre_expr op2 = get_or_alloc_expr_for (nary->op[1]);
- tree genop1 = find_or_generate_expression (block, op1,
- stmts, domstmt);
- tree genop2 = find_or_generate_expression (block, op2,
- stmts, domstmt);
- if (!genop1 || !genop2)
- return NULL_TREE;
- /* Ensure op2 is a ptrofftype for POINTER_PLUS_EXPR. It
- may be a constant with the wrong type. */
- if (nary->opcode == POINTER_PLUS_EXPR)
- {
- genop1 = fold_convert (nary->type, genop1);
- genop2 = convert_to_ptrofftype (genop2);
- }
- else
- {
- genop1 = fold_convert (TREE_TYPE (nary->op[0]), genop1);
- genop2 = fold_convert (TREE_TYPE (nary->op[1]), genop2);
- }
-
- folded = fold_build2 (nary->opcode, nary->type,
- genop1, genop2);
- }
- break;
- case 1:
- {
- pre_expr op1 = get_or_alloc_expr_for (nary->op[0]);
- tree genop1 = find_or_generate_expression (block, op1,
- stmts, domstmt);
- if (!genop1)
- return NULL_TREE;
- genop1 = fold_convert (TREE_TYPE (nary->op[0]), genop1);
-
- folded = fold_build1 (nary->opcode, nary->type,
- genop1);
- }
- break;
- default:
- return NULL_TREE;
+ pre_expr op = get_or_alloc_expr_for (nary->op[i]);
+ genop[i] = find_or_generate_expression (block, op,
+ stmts, domstmt);
+ if (!genop[i])
+ return NULL_TREE;
+ /* Ensure genop[] is properly typed for POINTER_PLUS_EXPR. It
+ may have conversions stripped. */
+ if (nary->opcode == POINTER_PLUS_EXPR)
+ {
+ if (i == 0)
+ genop[i] = fold_convert (nary->type, genop[i]);
+ else if (i == 1)
+ genop[i] = convert_to_ptrofftype (genop[i]);
+ }
+ else
+ genop[i] = fold_convert (TREE_TYPE (nary->op[i]), genop[i]);
+ }
+ if (nary->opcode == CONSTRUCTOR)
+ {
+ VEC(constructor_elt,gc) *elts = NULL;
+ for (i = 0; i < nary->length; ++i)
+ CONSTRUCTOR_APPEND_ELT (elts, NULL_TREE, genop[i]);
+ folded = build_constructor (nary->type, elts);
+ }
+ else
+ {
+ switch (nary->length)
+ {
+ case 1:
+ folded = fold_build1 (nary->opcode, nary->type,
+ genop[0]);
+ break;
+ case 2:
+ folded = fold_build2 (nary->opcode, nary->type,
+ genop[0], genop[1]);
+ break;
+ case 3:
+ folded = fold_build3 (nary->opcode, nary->type,
+ genop[0], genop[1], genop[3]);
+ break;
+ default:
+ gcc_unreachable ();
+ }