Left shift of negative values is undefined behavior. Detected by clang:
qemu/target-i386/translate.c:2423:26: runtime error:
left shift of negative value -8
This changes the code to reverse the sign after the left shift.
Signed-off-by: Eduardo Habkost <ehabk...@redhat.com>
---
target-i386/translate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 8b35de1..cc59b7e 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -2420,7 +2420,7 @@ static void gen_pusha(DisasContext *s)
{
int i;
gen_op_movl_A0_reg(R_ESP);
- gen_op_addl_A0_im(-8 << s->dflag);
+ gen_op_addl_A0_im(-(8 << s->dflag));
if (!s->ss32)
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
tcg_gen_mov_tl(cpu_T[1], cpu_A0);
--
2.1.0
