[Qemu-devel] [PATCH 37/97] target/xtensa: fix s32c1i TCGMemOp flags

[Michael Roth]

From: Max Filippov <address@hidden>

s32c1i must load and store value with target endianness, not host.
This results in an infinite loop in atomic cmpxchg sequences when target
endianness doesn't match host endianness.

Fixes: 9fb40342d4b3 ("target/xtensa: support MTTCG")
Cc: address@hidden
Signed-off-by: Max Filippov <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
(cherry picked from commit 7a54cfbcee8dd7aa87ce655a321b622107556326)
Signed-off-by: Michael Roth <address@hidden>
---
 target/xtensa/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 25399058a0..c626583cd9 100644
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -2288,7 +2288,7 @@ static void translate_s32c1i(DisasContext *dc, const 
uint32_t arg[],
         gen_load_store_alignment(dc, 2, addr, true);
         gen_check_atomctl(dc, addr);
         tcg_gen_atomic_cmpxchg_i32(cpu_R[arg[0]], addr, cpu_SR[SCOMPARE1],
-                                   tmp, dc->cring, MO_32);
+                                   tmp, dc->cring, MO_TEUL);
         tcg_temp_free(addr);
         tcg_temp_free(tmp);
     }
-- 
2.17.1