fixed comment

[libfirm] / ir / lower / lower_hl.c

diff --git a/ir/lower/lower_hl.c b/ir/lower/lower_hl.c
index c7df278..38d1e4b 100644 (file)
--- a/ir/lower/lower_hl.c
+++ b/ir/lower/lower_hl.c
@@ -506,6 +506,20 @@ static void lower_bitfields_stores(ir_node *store) {
        set_Store_ptr(store, ptr);
 }  /* lower_bitfields_stores */
 
+/**
+ * Lowers unaligned Loads.
+ */
+static void lower_unaligned_Load(ir_node *load) {
+       /* NYI */
+}
+
+/**
+ * Lowers unaligned Stores
+ */
+static void lower_unaligned_Store(ir_node *store) {
+       /* NYI */
+}
+
 /**
  * lowers IR-nodes, called from walker
  */
@@ -518,6 +532,14 @@ static void lower_irnode(ir_node *irn, void *env) {
        case iro_SymConst:
                lower_symconst(irn);
                break;
+       case iro_Load:
+               if (env != NULL && get_Load_align(irn) == align_non_aligned)
+                       lower_unaligned_Load(irn);
+               break;
+       case iro_Store:
+               if (env != NULL && get_Store_align(irn) == align_non_aligned)
+                       lower_unaligned_Store(irn);
+               break;
        default:
                break;
        }
@@ -563,7 +585,7 @@ void lower_highlevel(void) {
                /* First step: lower bitfield access: must be run as long as Sels still exists. */
                irg_walk_graph(irg, NULL, lower_bf_access, NULL);
 
-               /* Finally: lower SymConst-Size and Sel nodes. */
+               /* Finally: lower SymConst-Size and Sel nodes, unaligned Load/Stores. */
                irg_walk_graph(irg, NULL, lower_irnode, NULL);
 
                set_irg_phase_low(irg);