Be a bit more forgiving about impossible output register situations.

We get those when encountering unimplemented instructions, since
then we'll have bad register contents. Let's just silently ignore
it for now.

1 files changed, 4 insertions, 1 deletions

diff --git a/example.c b/example.c
index ae5ceb1..74c33bf 100644
--- a/example.c
+++ b/example.c
@@ -799,7 +799,8 @@ static int final_pseudo_flush(struct bb_state *state, pseudo_t pseudo, struct ha
 	 * storage for it..
 	 */
 	hash = find_storage_hash(pseudo, state->outputs);
-	assert(hash);
+	if (!hash)
+		return 1;
 	out = hash->storage;
 
 	/* If the output is in a register, try to get it there.. */
@@ -837,6 +838,8 @@ static int final_pseudo_flush(struct bb_state *state, pseudo_t pseudo, struct ha
 	return 1;
 
 copy_to_dst:
+	if (reg == dst)
+		return 1;
 	output_insn(state, "movl %s,%s", reg->name, dst->name);
 	add_pseudo_reg(state, pseudo, dst);
 	return 1;