[llvm] [llvm][AArch64] Improve the cost model for i128 div's (PR #107306)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-x86_64-debian` running on `lldb-x86_64-debian` while building `llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/162/builds/5624

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

```
Step 6 (test) failure: build (failure)
...
UNSUPPORTED: lldb-shell :: ScriptInterpreter/Lua/breakpoint_callback.test (2657 of 2666)
UNSUPPORTED: lldb-shell :: ScriptInterpreter/Lua/lua-python.test (2658 of 2666)
UNSUPPORTED: lldb-shell :: ScriptInterpreter/Lua/nested_sessions.test (2659 of 2666)
UNSUPPORTED: lldb-shell :: ScriptInterpreter/Python/Crashlog/interactive_crashlog_legacy.test (2660 of 2666)
PASS: lldb-api :: api/multithreaded/TestMultithreaded.py (2661 of 2666)
PASS: lldb-api :: tools/lldb-server/TestGdbRemoteFork.py (2662 of 2666)
PASS: lldb-api :: tools/lldb-server/TestLldbGdbServer.py (2663 of 2666)
PASS: lldb-api :: commands/process/attach/TestProcessAttach.py (2664 of 2666)
PASS: lldb-api :: repl/clang/TestClangREPL.py (2665 of 2666)
UNRESOLVED: lldb-api :: iohandler/sigint/TestIOHandlerPythonREPLSigint.py (2666 of 2666)
******************** TEST 'lldb-api :: iohandler/sigint/TestIOHandlerPythonREPLSigint.py' FAILED ********************
Script:
--
/usr/bin/python3 /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env ARCHIVER=/usr/bin/ar --env OBJCOPY=/usr/bin/objcopy --env LLVM_LIBS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./lib --env LLVM_INCLUDE_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/include --env LLVM_TOOLS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./bin --arch x86_64 --build-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex --lldb-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/lldb --compiler /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/clang --dsymutil /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/dsymutil --llvm-tools-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./bin --lldb-obj-root /home/worker/2.0.1/lldb-x86_64-debian/build/tools/lldb --lldb-libs-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./lib -t /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/iohandler/sigint -p TestIOHandlerPythonREPLSigint.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 20.0.0git (https://github.com/llvm/llvm-project.git revision bded3b3ea9f78c5b3edc3d4a6076665af0ea746b)
  clang revision bded3b3ea9f78c5b3edc3d4a6076665af0ea746b
  llvm revision bded3b3ea9f78c5b3edc3d4a6076665af0ea746b
(lldb) settings clear -all
(lldb) settings set symbols.enable-external-lookup false
(lldb) settings set target.inherit-tcc true
(lldb) settings set target.disable-aslr false
(lldb) settings set target.detach-on-error false
(lldb) settings set target.auto-apply-fixits false
(lldb) settings set plugin.process.gdb-remote.packet-timeout 60
(lldb) settings set symbols.clang-modules-cache-path "/home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-lldb/lldb-api"
(lldb) settings set use-color false
(lldb) script -l python --
script -l python --
Python Interactive Interpreter. To exit, type 'quit()', 'exit()' or Ctrl-D.
>>> import time; print('running' + 'now'); time.sleep(10000);
import time; print('running' + 'now'); time.sleep(10000);
runningnow
^Csettings set interpreter.prompt-on-quit false
quit
settings set interpreter.prompt-on-quit false^Jquit^JSkipping the following test categories: ['libc++', 'dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
Change dir to: /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/iohandler/sigint
runCmd: settings clear -all

output: 


```

</details>

https://github.com/llvm/llvm-project/pull/107306