diff --git a/ir/transform/regalloc.c b/ir/transform/regalloc.c
new file mode 100644
index 0000000..e9ba597
--- /dev/null
+++ b/ir/transform/regalloc.c
@@ -0,0 +1,8 @@
+#include "../ir.h"
+
+void vx_IrBlock_regalloc(vx_IrBlock * block) {
+    for (size_t i = 0; i < block->as_root.vars_len; i ++) {
+        lifetime l = block->as_root.vars[i].ll_lifetime;
+        if (l.first == NULL)
+            continue;
+