[PATCH 1/1] tcg/tcg-op: nonatomic_op should work with smaller memop

[LIU Zhiwei]

Reserve MO_SIGN in load and extend another operator val according to memop.
Thus, we can call tcg_gen_atomic_*_tl with a smaller memop.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
---
 tcg/tcg-op.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index e60b74fb82..9a0870cb18 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -3189,7 +3189,8 @@ static void do_nonatomic_op_i32(TCGv_i32 ret, TCGv addr, 
TCGv_i32 val,
 
     memop = tcg_canonicalize_memop(memop, 0, 0);
 
-    tcg_gen_qemu_ld_i32(t1, addr, idx, memop & ~MO_SIGN);
+    tcg_gen_qemu_ld_i32(t1, addr, idx, memop);
+    tcg_gen_ext_i32(val, val, memop);
     gen(t2, t1, val);
     tcg_gen_qemu_st_i32(t2, addr, idx, memop);
 
@@ -3232,7 +3233,8 @@ static void do_nonatomic_op_i64(TCGv_i64 ret, TCGv addr, 
TCGv_i64 val,
 
     memop = tcg_canonicalize_memop(memop, 1, 0);
 
-    tcg_gen_qemu_ld_i64(t1, addr, idx, memop & ~MO_SIGN);
+    tcg_gen_qemu_ld_i64(t1, addr, idx, memop);
+    tcg_gen_ext_i64(val, val, memop);
     gen(t2, t1, val);
     tcg_gen_qemu_st_i64(t2, addr, idx, memop);
 
-- 
2.23.0