[llvm] [TTI] Add basic costs for llvm.[su]mulh. (PR #224002)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-ppc64le-linux` running on `ppc64le-sanitizer` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/215

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure) (timed out)
...
--------------------------------------------------------------------------

Testing Time: 987.65s

Total Discovered Tests: 5059
  Excluded         : 2045 (40.42%)
  Skipped          :   26 (0.51%)
  Unsupported      :  665 (13.14%)
  Passed           : 2300 (45.46%)
  Expectedly Failed:   23 (0.45%)
command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=5664.529410
Step 9 (test compiler-rt debug) failure: test compiler-rt debug (failure)
...
273.59s: Profile-powerpc64le :: instrprof-basic.c
224.87s: Profile-powerpc64le :: Posix/instrprof-value-prof-shared.test
195.12s: SanitizerCommon-msan-powerpc64le-Linux :: max_allocation_size.cpp
194.18s: MemorySanitizer-POWERPC64LE :: chained_origin_limits.cpp
183.76s: MemorySanitizer-POWERPC64LE :: allocator_padding.cpp
171.31s: Profile-powerpc64le :: instrprof-binary-correlate.c
170.08s: Profile-powerpc64le :: Posix/instrprof-shared.test
163.55s: SanitizerCommon-msan-powerpc64le-Linux :: sanitizer_coverage_allowlist_ignorelist.cpp
160.28s: Profile-powerpc64le :: Linux/coverage-weak-lld.cpp
146.43s: SanitizerCommon-lsan-powerpc64le-Linux :: options-include.cpp
135.61s: MemorySanitizer-POWERPC64LE :: stack-origin.cpp
130.30s: Profile-powerpc64le :: gcov-basic.c
119.16s: Profile-powerpc64le :: Linux/binary-id-lookup.c
113.50s: MemorySanitizer-POWERPC64LE :: use-after-free.cpp
113.16s: MemorySanitizer-POWERPC64LE :: vararg_shadow.cpp
112.07s: SanitizerCommon-tsan-powerpc64le-Linux :: Linux/signal_segv_handler.cpp
111.14s: Profile-powerpc64le :: instrprof-set-filename.c

Test Times (2386):
--------------------------------------------------------------------------
[   Range   ] :: [               Percentage               ] :: [  Count  ]
--------------------------------------------------------------------------
[600s,650s) :: [                                        ] :: [   1/2386]
[550s,600s) :: [                                        ] :: [   0/2386]
[500s,550s) :: [                                        ] :: [   0/2386]
[450s,500s) :: [                                        ] :: [   0/2386]
[400s,450s) :: [                                        ] :: [   1/2386]
[350s,400s) :: [                                        ] :: [   1/2386]
[300s,350s) :: [                                        ] :: [   0/2386]
[250s,300s) :: [                                        ] :: [   1/2386]
[200s,250s) :: [                                        ] :: [   3/2386]
[150s,200s) :: [                                        ] :: [   6/2386]
[100s,150s) :: [                                        ] :: [  20/2386]
[ 50s,100s) :: [*                                       ] :: [  70/2386]
[  0s, 50s) :: [**************************************  ] :: [2283/2386]
--------------------------------------------------------------------------

Testing Time: 987.65s

Total Discovered Tests: 5059
  Excluded         : 2045 (40.42%)
  Skipped          :   26 (0.51%)
  Unsupported      :  665 (13.14%)
  Passed           : 2300 (45.46%)
  Expectedly Failed:   23 (0.45%)

command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=5664.529410

```

</details>

https://github.com/llvm/llvm-project/pull/224002