From 9e8c8a617b4326982d139abb65a7e470a0c442f7 Mon Sep 17 00:00:00 2001
From: Richard Henderson <richard.henderson@linaro.org>
Date: Thu, 9 Aug 2018 00:52:53 -0400
Subject: [PATCH] tcg/optimize: Do not skip default processing of dup_vec

If we do not opimize away dup_vec, we must mark its output as changed.

Backports commit 1fb57da72ae0886eba1234a2d98ddd10e88a9efc from qemu
---
 qemu/tcg/optimize.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/qemu/tcg/optimize.c b/qemu/tcg/optimize.c
index c9f8b920..35371fb0 100644
--- a/qemu/tcg/optimize.c
+++ b/qemu/tcg/optimize.c
@@ -1093,9 +1093,9 @@ void tcg_optimize(TCGContext *s)
                 tmp = arg_info(op->args[1])->val;
                 tmp = dup_const(TCGOP_VECE(op), tmp);
                 tcg_opt_gen_movi(s, op, op->args[0], tmp);
-                continue;
+                break;
             }
-            break;
+            goto do_default;
 
         CASE_OP_32_64(not):
         CASE_OP_32_64(neg):