[llvm] [ValueTracking] Propagate sign information out of loop (PR #175590)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `lldb-aarch64-windows` running on `linaro-armv8-windows-msvc-05` while building `llvm` at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/141/builds/15149

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

```
Step 6 (test) failure: build (failure)
...
UNSUPPORTED: lldb-api :: functionalities/unwind/frameless-faulted/TestUnwindFramelessFaulted.py (731 of 2441)
UNSUPPORTED: lldb-api :: functionalities/unwind/libunwind_ret_injection/TestLibUnwindRetInjection.py (732 of 2441)
UNSUPPORTED: lldb-api :: functionalities/unwind/noreturn/TestNoreturnUnwind.py (733 of 2441)
PASS: lldb-api :: functionalities/unwind/noreturn/module-end/TestNoReturnModuleEnd.py (734 of 2441)
UNSUPPORTED: lldb-api :: functionalities/unwind/sigtramp/TestSigtrampUnwind.py (735 of 2441)
PASS: lldb-api :: functionalities/unwind/zeroth_frame/TestZerothFrame.py (736 of 2441)
PASS: lldb-api :: functionalities/valobj_errors/TestValueObjectErrors.py (737 of 2441)
UNSUPPORTED: lldb-api :: functionalities/value_md5_crash/TestValueMD5Crash.py (738 of 2441)
PASS: lldb-api :: functionalities/var_path/TestVarPath.py (739 of 2441)
TIMEOUT: lldb-api :: functionalities/breakpoint/two_hits_one_actual/TestTwoHitsOneActual.py (740 of 2441)
******************** TEST 'lldb-api :: functionalities/breakpoint/two_hits_one_actual/TestTwoHitsOneActual.py' FAILED ********************
Script:
--
C:/Users/tcwg/scoop/apps/python/current/python.exe C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/llvm-project/lldb\test\API\dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./lib --env LLVM_INCLUDE_DIR=C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/include --env LLVM_TOOLS_DIR=C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin --arch aarch64 --build-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build.noindex --lldb-module-cache-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build.noindex/module-cache-lldb\lldb-api --clang-module-cache-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build.noindex/module-cache-clang\lldb-api --executable C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/lldb.exe --compiler C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/clang.exe --dsymutil C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin/dsymutil.exe --make C:/Users/tcwg/scoop/shims/make.exe --llvm-tools-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./bin --lldb-obj-root C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/tools/lldb --lldb-libs-dir C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/./lib --cmake-build-type Release --skip-category=watchpoint C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\llvm-project\lldb\test\API\functionalities\breakpoint\two_hits_one_actual -p TestTwoHitsOneActual.py
--
Exit Code: 15
Timeout: Reached timeout of 600 seconds

Command Output (stdout):
--
lldb version 23.0.0git (https://github.com/llvm/llvm-project.git revision 7054a4b8f9923a41619657a748465de572af71bd)
  clang revision 7054a4b8f9923a41619657a748465de572af71bd
  llvm revision 7054a4b8f9923a41619657a748465de572af71bd

--

********************
UNSUPPORTED: lldb-api :: functionalities/vtable/TestVTableValue.py (741 of 2441)
UNSUPPORTED: lldb-api :: functionalities/watchpoint/consecutive-watchpoints/TestConsecutiveWatchpoints.py (742 of 2441)
UNSUPPORTED: lldb-api :: functionalities/watchpoint/large-watchpoint/TestLargeWatchpoint.py (743 of 2441)
UNSUPPORTED: lldb-api :: functionalities/watchpoint/modify-watchpoints/TestModifyWatchpoint.py (744 of 2441)
UNSUPPORTED: lldb-api :: functionalities/watchpoint/unaligned-large-watchpoint/TestUnalignedLargeWatchpoint.py (745 of 2441)
UNSUPPORTED: lldb-api :: functionalities/watchpoint/unaligned-spanning-two-dwords/TestUnalignedSpanningDwords.py (746 of 2441)
PASS: lldb-api :: functionalities/wrong_commands/TestWrongCommands.py (747 of 2441)
UNSUPPORTED: lldb-api :: iohandler/autosuggestion/TestAutosuggestion.py (748 of 2441)
UNSUPPORTED: lldb-api :: iohandler/completion/TestIOHandlerCompletion.py (749 of 2441)
UNSUPPORTED: lldb-api :: iohandler/resize/TestIOHandlerResize.py (750 of 2441)
UNSUPPORTED: lldb-api :: iohandler/resize/TestIOHandlerResizeNoEditline.py (751 of 2441)
UNSUPPORTED: lldb-api :: iohandler/sigint/TestIOHandlerPythonREPLSigint.py (752 of 2441)
UNSUPPORTED: lldb-api :: iohandler/sigint/TestProcessIOHandlerInterrupt.py (753 of 2441)
UNSUPPORTED: lldb-api :: iohandler/stdio/TestIOHandlerProcessSTDIO.py (754 of 2441)
UNSUPPORTED: lldb-api :: iohandler/unicode/TestUnicode.py (755 of 2441)
UNSUPPORTED: lldb-api :: lang/BoundsSafety/soft_trap/TestBoundsSafetyInstrumentationPlugin.py (756 of 2441)
PASS: lldb-api :: lang/c/array_types/TestArrayTypes.py (757 of 2441)
UNSUPPORTED: lldb-api :: lang/c/bitfields/TestBitfields.py (758 of 2441)
UNSUPPORTED: lldb-api :: lang/c/blocks/TestBlocks.py (759 of 2441)
PASS: lldb-api :: lang/c/builtin-types/TestCBuiltinTypes.py (760 of 2441)
PASS: lldb-api :: lang/c/anonymous/TestAnonymous.py (761 of 2441)
UNSUPPORTED: lldb-api :: lang/c/complex/TestComplexC99.py (762 of 2441)

```

</details>

https://github.com/llvm/llvm-project/pull/175590