From: Richard Henderson <richard.henderson@linaro.org>
Date: Sun, 5 Aug 2018 23:32:58 +0000 (-0700)
Subject: tcg/optimize: Do not skip default processing of dup_vec
X-Git-Tag: qemu-xen-4.12.0-rc1~14
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=1fb57da72ae0886eba1234a2d98ddd10e88a9efc;p=qemu-xen.git

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.

Fixes: 170ba88f45b
Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20180805233258.31892-1-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/tcg/optimize.c b/tcg/optimize.c
index d4ea67e541..5dbe11c3c8 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1094,9 +1094,9 @@ 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):