Commit 6be33651 authored by Michael Beck's avatar Michael Beck
Browse files


 - the upper block must dominate the block, else we cannot fuse
   upper and lower block

parent ee3f63c0
......@@ -643,6 +643,8 @@ restart:
upper_block = get_nodes_block(upper_cf);
if (upper_block != lower_pred)
if (!block_dominates(upper_block, block))
upper_cond = get_Proj_pred(upper_cf);
......@@ -703,6 +705,9 @@ restart:
env->changed = 1;
DB((dbg, LEVEL_1, "boolopt: %+F: fusing (ub %+F lb %+F)\n",
current_ir_graph, upper_block, lower_block));
/* move all expressions on the path to lower/upper block */
move_nodes_to_block(get_Block_cfgpred(block, up_idx), upper_block);
move_nodes_to_block(get_Block_cfgpred(block, low_idx), lower_block);
......@@ -720,7 +725,6 @@ restart:
set_Cond_selector(cond, replacement);
DB((dbg, LEVEL_1, "%+F: replaced (ub %+F)\n", current_ir_graph, upper_block));
goto restart;
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