[PULL 5/7] target/arm: Do not reject rt == rt2 for strexd

[Peter Maydell]

From: Richard Henderson <address@hidden>

There was too much cut and paste between ldrexd and strexd,
as ldrexd does prohibit two output registers the same.

Fixes: af288228995
Reported-by: Michael Goffioul <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Message-id: address@hidden
Reviewed-by: Robert Foley <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
---
 target/arm/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 2ea9da7637b..b285b23858e 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -8934,7 +8934,7 @@ static bool op_strex(DisasContext *s, arg_STREX *a, MemOp 
mop, bool rel)
         || (s->thumb && (a->rd == 13 || a->rt == 13))
         || (mop == MO_64
             && (a->rt2 == 15
-                || a->rd == a->rt2 || a->rt == a->rt2
+                || a->rd == a->rt2
                 || (s->thumb && a->rt2 == 13)))) {
         unallocated_encoding(s);
         return true;
-- 
2.20.1