If we decide to mark a register as being its own storage,

return NULL from find_pseudo_storage().

That way the caller won't bother to move the register to
itself - it sees that it has no separate storage.

1 files changed, 3 insertions, 2 deletions

diff --git a/example.c b/example.c
index f77b4aa..3c1fec3 100644
--- a/example.c
+++ b/example.c
@@ -344,8 +344,9 @@ static struct storage_hash *find_pseudo_storage(struct bb_state *state, pseudo_t
 		if (reg && !reg->used) {
 			src->storage->type = REG_REG;
 			src->storage->regno = reg - hardregs;
-		} else
-			alloc_stack(state, src->storage);
+			return NULL;
+		}
+		alloc_stack(state, src->storage);
 	}
 	return src;
 }