s390x/tcg: Fix BRASL with a large negative offset

When RI2 is 0x80000000, qemu enters an infinite loop instead of jumping
backwards. Fix by adding a missing cast, like in in2_ri2().

Fixes: 8ac33cdb8bfb ("Convert BRANCH AND SAVE")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220314104232.675863-2-iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 904b51542f7c833479d807ec4c195bdede37c086..41c8696185767ae796051f48400e54b10b9f64d8 100644 (file)
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -1597,7 +1597,7 @@ static DisasJumpType op_bal(DisasContext *s, DisasOps *o)
 static DisasJumpType op_basi(DisasContext *s, DisasOps *o)
 {
     pc_to_link_info(o->out, s, s->pc_tmp);
-    return help_goto_direct(s, s->base.pc_next + 2 * get_field(s, i2));
+    return help_goto_direct(s, s->base.pc_next + (int64_t)get_field(s, i2) * 2);
 }
 
 static DisasJumpType op_bc(DisasContext *s, DisasOps *o)