From 22a68e3d2ca082d2ea9381d41fa4f0b4e1a6d123 Mon Sep 17 00:00:00 2001 From: Sebastian Buchwald Date: Tue, 13 Apr 2010 13:42:54 +0000 Subject: [PATCH] Create a new node with the right mode instead of changing the mode. [r27391] --- ir/opt/convopt.c | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) diff --git a/ir/opt/convopt.c b/ir/opt/convopt.c index eb59084f9..45d516968 100644 --- a/ir/opt/convopt.c +++ b/ir/opt/convopt.c @@ -173,9 +173,11 @@ static ir_node *place_conv(ir_node *node, ir_mode *dest_mode) static ir_node *conv_transform(ir_node *node, ir_mode *dest_mode) { - ir_mode *mode = get_irn_mode(node); - size_t arity; - size_t i; + ir_mode *mode = get_irn_mode(node); + size_t arity; + size_t i; + ir_node *new_node; + ir_graph *irg = get_irn_irg(node); if (mode == dest_mode) return node; @@ -218,20 +220,30 @@ static ir_node *conv_transform(ir_node *node, ir_mode *dest_mode) return place_conv(node, dest_mode); } + // Create a new node with the right mode + new_node = new_ir_node(get_irn_dbg_info(node), + irg, + get_nodes_block(node), + get_irn_op(node), + dest_mode, + get_irn_arity(node), + get_irn_in(node) + 1); + copy_node_attr(irg, node, new_node); + // The shift count does not participate in the conv optimisation - arity = is_Shl(node) ? 1 : get_irn_arity(node); + arity = is_Shl(new_node) ? 1 : get_irn_arity(new_node); for (i = 0; i < arity; i++) { - ir_node *pred = get_irn_n(node, i); + ir_node *pred = get_irn_n(new_node, i); ir_node *transformed; if (get_conv_costs(pred, dest_mode) > 0) { transformed = place_conv(pred, dest_mode); } else { transformed = conv_transform(pred, dest_mode); } - set_irn_n(node, i, transformed); + set_irn_n(new_node, i, transformed); } - set_irn_mode(node, dest_mode); - return node; + + return new_node; } /* TODO, backends (at least ia32) can't handle it at the moment, -- 2.20.1