diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-12-14 16:13:53 -0600 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2020-12-21 18:11:33 +0100 |
| commit | ff26d287bddc189fd5a084cc96078da1257b0826 (patch) | |
| tree | b3933690ae362e092a809e2aa234002e1125818a /target/s390x/helper.c | |
| parent | 5b723a5d8df44b69b8ba350e643059c8fd889315 (diff) | |
target/s390x: Improve cc computation for ADD LOGICAL
The resulting cc is only dependent on the result and the
carry-out. So save those things rather than the inputs.
Carry-out for 64-bit inputs is had via tcg_gen_add2_i64 directly
into cc_src. Carry-out for 32-bit inputs is had via extraction
from a normal 64-bit add (with zero-extended inputs).
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201214221356.68039-2-richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/helper.c')
| -rw-r--r-- | target/s390x/helper.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/target/s390x/helper.c b/target/s390x/helper.c index b877690845..db87a62a57 100644 --- a/target/s390x/helper.c +++ b/target/s390x/helper.c @@ -395,6 +395,7 @@ const char *cc_name(enum cc_op cc_op) [CC_OP_DYNAMIC] = "CC_OP_DYNAMIC", [CC_OP_STATIC] = "CC_OP_STATIC", [CC_OP_NZ] = "CC_OP_NZ", + [CC_OP_ADDU] = "CC_OP_ADDU", [CC_OP_LTGT_32] = "CC_OP_LTGT_32", [CC_OP_LTGT_64] = "CC_OP_LTGT_64", [CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32", @@ -402,7 +403,6 @@ const char *cc_name(enum cc_op cc_op) [CC_OP_LTGT0_32] = "CC_OP_LTGT0_32", [CC_OP_LTGT0_64] = "CC_OP_LTGT0_64", [CC_OP_ADD_64] = "CC_OP_ADD_64", - [CC_OP_ADDU_64] = "CC_OP_ADDU_64", [CC_OP_ADDC_64] = "CC_OP_ADDC_64", [CC_OP_SUB_64] = "CC_OP_SUB_64", [CC_OP_SUBU_64] = "CC_OP_SUBU_64", @@ -410,7 +410,6 @@ const char *cc_name(enum cc_op cc_op) [CC_OP_ABS_64] = "CC_OP_ABS_64", [CC_OP_NABS_64] = "CC_OP_NABS_64", [CC_OP_ADD_32] = "CC_OP_ADD_32", - [CC_OP_ADDU_32] = "CC_OP_ADDU_32", [CC_OP_ADDC_32] = "CC_OP_ADDC_32", [CC_OP_SUB_32] = "CC_OP_SUB_32", [CC_OP_SUBU_32] = "CC_OP_SUBU_32", |