Only simplify empty array blobs to zero slices.

1 files changed, 7 insertions, 5 deletions

diff --git a/6/simp.c b/6/simp.c
index 12e1cf5..96630d3 100644
--- a/6/simp.c
+++ b/6/simp.c
@@ -1943,11 +1943,13 @@ static void extractsub(Simp *s, Node *e)
 	switch (exprop(e)) {
 	case Oslice:
 		sub = e->expr.args[0];
-		if (exprop(sub) == Oarr && sub->expr.nargs > 0) {
-			e->expr.args[0] = simpblob(s, e->expr.args[0]);
-		} else  {
-			e->expr.args[0] = mkintlit(e->loc, 0);
-			e->expr.args[0]->expr.type = tyintptr;
+		if (exprop(sub) == Oarr) {
+			if (sub->expr.nargs > 0) {
+				e->expr.args[0] = simpblob(s, e->expr.args[0]);
+			} else  {
+				e->expr.args[0] = mkintlit(e->loc, 0);
+				e->expr.args[0]->expr.type = tyintptr;
+			}
 		}
 		break;
 	case Oarr: