From: Richard Henderson <richard.hender...@linaro.org>
Used the wrong temporary in the computation of subtractive overflow.
Reported-by: Laurent Desnogues <laurent.desnog...@gmail.com>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnog...@gmail.com>
Tested-by: Alex Bennée <alex.ben...@linaro.org>
Tested-by: Laurent Desnogues <laurent.desnog...@gmail.com>
Message-id: 20180801123111.3595-3-richard.hender...@linaro.org
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
(cherry picked from commit 7a31e0c6c68baffab0867bdd92b8744568b1d3ba)
Signed-off-by: Michael Roth <mdr...@linux.vnet.ibm.com>
---
target/arm/translate-sve.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 374051cd20..9dd4c38bab 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -1625,7 +1625,7 @@ static void do_sat_addsub_64(TCGv_i64 reg, TCGv_i64 val,
bool u, bool d)
/* Detect signed overflow for subtraction. */
tcg_gen_xor_i64(t0, reg, val);
tcg_gen_sub_i64(t1, reg, val);
- tcg_gen_xor_i64(reg, reg, t0);
+ tcg_gen_xor_i64(reg, reg, t1);
tcg_gen_and_i64(t0, t0, reg);
/* Bound the result. */
--
2.17.1
