From ba39cb4fcb12d84c684d99bdbcb2fb22ddb06d0b Mon Sep 17 00:00:00 2001
From: Heiher <wangr@lemote.com>
Date: Thu, 1 Mar 2018 09:02:29 -0500
Subject: [PATCH] target-mips: Fix Loongson pandn instruction.

pandn FD, FS, FT
Operation: FD = ((NOT FS) AND FT)

Backports commit 9099a36b4bb81f84004b77f08e58ac2c67eed0e7 from qemu
---
 qemu/target-mips/translate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/qemu/target-mips/translate.c b/qemu/target-mips/translate.c
index 56c6b9a5..1cf89cec 100644
--- a/qemu/target-mips/translate.c
+++ b/qemu/target-mips/translate.c
@@ -4002,9 +4002,12 @@ static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt)
     LMI_DIRECT(XOR_CP2, xor, xor);
     LMI_DIRECT(NOR_CP2, nor, nor);
     LMI_DIRECT(AND_CP2, and, and);
-    LMI_DIRECT(PANDN, pandn, andc);
     LMI_DIRECT(OR, or, or);
 
+    case OPC_PANDN:
+        tcg_gen_andc_i64(tcg_ctx, t0, t1, t0);
+        break;
+
     case OPC_PINSRH_0:
         tcg_gen_deposit_i64(tcg_ctx, t0, t0, t1, 0, 16);
         break;