From 216483f975d268d1bba93e5a44c06b080f515a97 Mon Sep 17 00:00:00 2001
From: liujing <liujing_yewu@cmss.chinamobile.com>
Date: Wed, 18 Sep 2024 16:58:59 +0800
Subject: [PATCH] target/i386: REPZ and REPNZ are mutually exclusive

The later prefix wins if both are present, make it show in s->prefix too.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Liu Jing <liujing_yewu@cmss.chinamobile.com>
---
 target/i386/tcg/translate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 82f77b52fb..0b035df68e 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -4587,9 +4587,11 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu)
     switch (b) {
     case 0xf3:
         prefixes |= PREFIX_REPZ;
+        prefixes &= ~PREFIX_REPNZ;
         goto next_byte;
     case 0xf2:
         prefixes |= PREFIX_REPNZ;
+        prefixes &= ~PREFIX_REPZ;
         goto next_byte;
     case 0xf0:
         prefixes |= PREFIX_LOCK;
-- 
2.41.0.windows.1