This is a backport of the following upstream commits:
- commit fc3dd86a290a ("s390x/tcg: Fix BRASL with a large negative offset")
- commit 16ed5f14215b ("s390x/tcg: Fix BRCL with a large negative offset")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Cherry-pick the following upstream commits:
521130f267 target/s390x: Fix SLDA sign bit index
57556b28af target/s390x: Fix SRDA CC calculation
df103c09bc target/s390x: Fix cc_calc_sla_64() missing overflows
6da170beda target/s390x: Fix shifting 32-bit values for more than 31 bits