From dd343762f188ebdbd4375a6637368fcb4773c0f4 Mon Sep 17 00:00:00 2001 From: Michael Beck Date: Wed, 5 Sep 2007 12:26:19 +0000 Subject: [PATCH] disables a+a => 2*a [r15671] --- ir/ir/iropt.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/ir/ir/iropt.c b/ir/ir/iropt.c index 62f43dd88..bbfcc8ed5 100644 --- a/ir/ir/iropt.c +++ b/ir/ir/iropt.c @@ -1912,6 +1912,8 @@ static ir_node *transform_node_Add(ir_node *n) { return n; if (mode_is_num(mode)) { +#if 0 + /* the following code ledas to endless recursion when Mul are replaced by a simple instruction chain */ if (a == b && mode_is_int(mode)) { ir_node *block = get_irn_n(n, -1); @@ -1923,7 +1925,9 @@ static ir_node *transform_node_Add(ir_node *n) { new_r_Const_long(current_ir_graph, block, mode, 2), mode); DBG_OPT_ALGSIM0(oldn, n, FS_OPT_ADD_A_A); - } else if (get_irn_op(a) == op_Minus) { + } else +#endif + if (get_irn_op(a) == op_Minus) { n = new_rd_Sub( get_irn_dbg_info(n), current_ir_graph, -- 2.20.1