tree
canonicalize_constructor_val (tree cval)
{
+ tree orig_cval = cval;
STRIP_NOPS (cval);
if (TREE_CODE (cval) == POINTER_PLUS_EXPR
&& TREE_CODE (TREE_OPERAND (cval, 1)) == INTEGER_CST)
/* Fixup types in global initializers. */
if (TREE_TYPE (TREE_TYPE (cval)) != TREE_TYPE (TREE_OPERAND (cval, 0)))
cval = build_fold_addr_expr (TREE_OPERAND (cval, 0));
+
+ if (!useless_type_conversion_p (TREE_TYPE (orig_cval), TREE_TYPE (cval)))
+ cval = fold_convert (TREE_TYPE (orig_cval), cval);
+ return cval;
}
- return cval;
+ return orig_cval;
}
/* If SYM is a constant variable with known value, return the value.
unlink_stmt_vdef (stmt);
release_defs (stmt);
}
- gsi_remove (si_p, true);
+ gsi_replace (si_p, gimple_build_nop (), true);
return;
}
}
if (TREE_CODE (arg) != SSA_NAME)
{
- if (TREE_CODE (arg) == COND_EXPR)
- return get_maxval_strlen (COND_EXPR_THEN (arg), length, visited, type)
- && get_maxval_strlen (COND_EXPR_ELSE (arg), length, visited, type);
/* We can end up with &(*iftmp_1)[0] here as well, so handle it. */
- else if (TREE_CODE (arg) == ADDR_EXPR
- && TREE_CODE (TREE_OPERAND (arg, 0)) == ARRAY_REF
- && integer_zerop (TREE_OPERAND (TREE_OPERAND (arg, 0), 1)))
+ if (TREE_CODE (arg) == ADDR_EXPR
+ && TREE_CODE (TREE_OPERAND (arg, 0)) == ARRAY_REF
+ && integer_zerop (TREE_OPERAND (TREE_OPERAND (arg, 0), 1)))
{
tree aop0 = TREE_OPERAND (TREE_OPERAND (arg, 0), 0);
if (TREE_CODE (aop0) == INDIRECT_REF
tree rhs = gimple_assign_rhs1 (def_stmt);
return get_maxval_strlen (rhs, length, visited, type);
}
+ else if (gimple_assign_rhs_code (def_stmt) == COND_EXPR)
+ {
+ tree op2 = gimple_assign_rhs2 (def_stmt);
+ tree op3 = gimple_assign_rhs3 (def_stmt);
+ return get_maxval_strlen (op2, length, visited, type)
+ && get_maxval_strlen (op3, length, visited, type);
+ }
return false;
case GIMPLE_PHI:
if (!DECL_INITIAL (base)
&& (TREE_STATIC (base) || DECL_EXTERNAL (base)))
return error_mark_node;
+ /* Do not return an error_mark_node DECL_INITIAL. LTO uses this
+ as special marker (_not_ zero ...) for its own purposes. */
+ if (DECL_INITIAL (base) == error_mark_node)
+ return NULL_TREE;
return DECL_INITIAL (base);
case ARRAY_REF:
offset += token * size;
fn = fold_ctor_reference (TREE_TYPE (TREE_TYPE (v)), DECL_INITIAL (v),
offset, size);
- if (!fn)
+ if (!fn || integer_zerop (fn))
return NULL_TREE;
gcc_assert (TREE_CODE (fn) == ADDR_EXPR
|| TREE_CODE (fn) == FDESC_EXPR);