[Qemu-devel] [PATCH 08/10] target-i386: SSE4.2: fix pcmpXstrX instructions with "Masked(-)" polarity

[Aurelien Jarno]

valids can equals to -1 if the reg/mem string is empty. Change the
expression to have an empty xor mask in that case.

Signed-off-by: Aurelien Jarno <address@hidden>
---
 target-i386/ops_sse.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-i386/ops_sse.h b/target-i386/ops_sse.h
index 77ab410..a0bac07 100644
--- a/target-i386/ops_sse.h
+++ b/target-i386/ops_sse.h
@@ -2050,7 +2050,7 @@ static inline unsigned pcmpxstrx(CPUX86State *env, Reg 
*d, Reg *s,
         res ^= (2 << upper) - 1;
         break;
     case 3:
-        res ^= (2 << valids) - 1;
+        res ^= (1 << (valids + 1)) - 1;
         break;
     }
 
-- 
1.7.10.4