From e4eba27e29114842978234a44c92b2a945a6b46d Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Tue, 26 Mar 2013 19:56:02 +0100 Subject: [PATCH] target-i386: SSE4.2: fix pcmpXstrX instructions with "Masked(-)" polarity valids can equals to -1 if the reg/mem string is empty. Change the expression to have an empty xor mask in that case. Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno --- 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 77ab410b9e..a0bac07ba3 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; } -- 2.11.0