- Improved addressmode optimisation for conv nodes

[libfirm] / ir / be / ia32 / ia32_transform.c

diff --git a/ir/be/ia32/ia32_transform.c b/ir/be/ia32/ia32_transform.c
index ee488d8..6b603ef 100644 (file)
--- a/ir/be/ia32/ia32_transform.c
+++ b/ir/be/ia32/ia32_transform.c
@@ -2226,7 +2226,8 @@ static ir_node *gen_Conv(ia32_transform_env_t *env) {
                set_ia32_tgt_mode(new_op, tgt_mode);
                set_ia32_src_mode(new_op, src_mode);
 
-               set_ia32_am_support(new_op, ia32_am_Source);
+               if(tgt_bits >= src_bits)
+                       set_ia32_am_support(new_op, ia32_am_Source);
 
                new_op = new_rd_Proj(dbg, irg, block, new_op, tgt_mode, pn);