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[PATCH 1/2] target/arm: Do not reject rt == rt2 for strexd


From: Richard Henderson
Subject: [PATCH 1/2] target/arm: Do not reject rt == rt2 for strexd
Date: Sun, 17 Nov 2019 10:06:20 +0100

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>
---
 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 2ea9da7637..b285b23858 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;
-- 
2.17.1




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