[llvm] Reland "[Transforms] LoopIdiomRecognize recognize strlen and wcslen (#108985)" (PR #131412)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/18/builds/13294

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-shell :: ObjectFile/ELF/section-addresses.yaml (1394 of 2928)
PASS: lldb-shell :: ObjectFile/ELF/riscv-arch.yaml (1395 of 2928)
PASS: lldb-shell :: ObjectFile/ELF/section-permissions.yaml (1396 of 2928)
PASS: lldb-shell :: ObjectFile/ELF/section-types-edgecases.yaml (1397 of 2928)
PASS: lldb-shell :: ObjectFile/ELF/minidebuginfo-set-and-hit-breakpoint.test (1398 of 2928)
PASS: lldb-shell :: ObjectFile/ELF/short-build-id.yaml (1399 of 2928)
PASS: lldb-shell :: ObjectFile/ELF/section-types.yaml (1400 of 2928)
PASS: lldb-shell :: ObjectFile/MachO/lc_build_version.yaml (1401 of 2928)
PASS: lldb-shell :: ObjectFile/MachO/lc_build_version_notools.yaml (1402 of 2928)
UNRESOLVED: lldb-api :: tools/lldb-server/TestLldbGdbServer.py (1403 of 2928)
******************** TEST 'lldb-api :: tools/lldb-server/TestLldbGdbServer.py' FAILED ********************
Script:
--
/usr/bin/python3.10 /home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin --arch armv8l --build-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex --lldb-module-cache-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin/lldb --compiler /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin/clang --dsymutil /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./bin --lldb-obj-root /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/tools/lldb --lldb-libs-dir /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/./lib /home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/test/API/tools/lldb-server -p TestLldbGdbServer.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 21.0.0git (https://github.com/llvm/llvm-project.git revision ac9049df7e62e2ca4dc5d103593b51639b5715e3)
  clang revision ac9049df7e62e2ca4dc5d103593b51639b5715e3
  llvm revision ac9049df7e62e2ca4dc5d103593b51639b5715e3
Skipping the following test categories: ['libc++', 'dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hc_then_Csignal_signals_correct_thread_launch_debugserver (TestLldbGdbServer.LldbGdbServerTestCase) (test case does not fall in any category of interest for this run) 
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hc_then_Csignal_signals_correct_thread_launch_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hg_fails_on_another_pid_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hg_fails_on_minus_one_pid_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hg_fails_on_zero_pid_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hg_switches_to_3_threads_launch_debugserver (TestLldbGdbServer.LldbGdbServerTestCase) (test case does not fall in any category of interest for this run) 
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_Hg_switches_to_3_threads_launch_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_P_and_p_thread_suffix_work_debugserver (TestLldbGdbServer.LldbGdbServerTestCase) (test case does not fall in any category of interest for this run) 
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_P_and_p_thread_suffix_work_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_P_writes_all_gpr_registers_debugserver (TestLldbGdbServer.LldbGdbServerTestCase) (test case does not fall in any category of interest for this run) 
PASS: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_P_writes_all_gpr_registers_llgs (TestLldbGdbServer.LldbGdbServerTestCase)
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_attach_commandline_continue_app_exits_debugserver (TestLldbGdbServer.LldbGdbServerTestCase) (test case does not fall in any category of interest for this run) 
Program aborted due to an unhandled Error:
Operation not permitted
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: /home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/lldb-server gdbserver --attach=1339397 --reverse-connect [::1]:47909
#0 0x00d54ad8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/lldb-server+0x7a0ad8)
#1 0x00d524d8 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/lldb-server+0x79e4d8)
#2 0x00d5535c SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0xf751d6f0 __default_rt_sa_restorer ./signal/../sysdeps/unix/sysv/linux/arm/sigrestorer.S:80:0
#4 0xf750db06 ./csu/../sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:47:0

```

</details>

https://github.com/llvm/llvm-project/pull/131412