[llvm] [AArch64] Break up `AArch64FrameLowering::emitPrologue` (NFCI) (PR #157485)

Wed Sep 10 08:01:17 PDT 2025

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/11428

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

```
Step 6 (test) failure: build (failure)
...
UNSUPPORTED: lldb-api :: tools/lldb-dap/stackTrace-x86/TestDAP_source_x86.py (1234 of 2303)
PASS: lldb-api :: tools/lldb-dap/stackTrace/TestDAP_stackTrace.py (1235 of 2303)
UNSUPPORTED: lldb-api :: tools/lldb-dap/stackTrace/subtleFrames/TestDAP_subtleFrames.py (1236 of 2303)
PASS: lldb-api :: tools/lldb-dap/stackTraceDisassemblyDisplay/TestDAP_stackTraceDisassemblyDisplay.py (1237 of 2303)
UNSUPPORTED: lldb-api :: tools/lldb-dap/stackTraceMissingFunctionName/TestDAP_stackTraceMissingFunctionName.py (1238 of 2303)
UNSUPPORTED: lldb-api :: tools/lldb-dap/stackTraceMissingModule/TestDAP_stackTraceMissingModule.py (1239 of 2303)
UNSUPPORTED: lldb-api :: tools/lldb-dap/startDebugging/TestDAP_startDebugging.py (1240 of 2303)
UNSUPPORTED: lldb-api :: tools/lldb-dap/step/TestDAP_step.py (1241 of 2303)
UNSUPPORTED: lldb-api :: tools/lldb-dap/stepInTargets/TestDAP_stepInTargets.py (1242 of 2303)
UNRESOLVED: lldb-api :: tools/lldb-dap/launch/TestDAP_launch.py (1243 of 2303)
******************** TEST 'lldb-api :: tools/lldb-dap/launch/TestDAP_launch.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\tools\lldb-dap\launch -p TestDAP_launch.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 22.0.0git (https://github.com/llvm/llvm-project.git revision 106eb4623d0c50cd14a7bdf08d159eef6907d0d7)
  clang revision 106eb4623d0c50cd14a7bdf08d159eef6907d0d7
  llvm revision 106eb4623d0c50cd14a7bdf08d159eef6907d0d7
Skipping the following test categories: ['watchpoint', 'libc++', 'libstdcxx', 'dwo', 'dsym', 'gmodules', 'debugserver', 'objc', 'fork', 'pexpect']

--
Command Output (stderr):
--
UNSUPPORTED: LLDB (C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\bin\clang.exe-aarch64) :: test_args (TestDAP_launch.TestDAP_launch.test_args) (skip on windows) 

UNSUPPORTED: LLDB (C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\bin\clang.exe-aarch64) :: test_commands (TestDAP_launch.TestDAP_launch.test_commands) (skipping due to the following parameter(s): architecture) 

UNSUPPORTED: LLDB (C:\Users\tcwg\llvm-worker\lldb-aarch64-windows\build\bin\clang.exe-aarch64) :: test_cwd (TestDAP_launch.TestDAP_launch.test_cwd) (skip on windows) 

========= DEBUG ADAPTER PROTOCOL LOGS =========

1757515915.934952021 (stdio) --> {"command":"initialize","type":"request","arguments":{"adapterID":"lldb-native","clientID":"vscode","columnsStartAt1":true,"linesStartAt1":true,"locale":"en-us","pathFormat":"path","supportsRunInTerminalRequest":true,"supportsVariablePaging":true,"supportsVariableType":true,"supportsStartDebuggingRequest":true,"supportsProgressReporting":true,"$__lldb_sourceInitFile":false},"seq":1}

1757515915.935156822 (stdio) queued (command=initialize seq=1)

1757515915.945107222 (stdio) <-- {"body":{"$__lldb_version":"lldb version 22.0.0git (https://github.com/llvm/llvm-project.git revision 106eb4623d0c50cd14a7bdf08d159eef6907d0d7)\n  clang revision 106eb4623d0c50cd14a7bdf08d159eef6907d0d7\n  llvm revision 106eb4623d0c50cd14a7bdf08d159eef6907d0d7","completionTriggerCharacters":["."," ","\t"],"exceptionBreakpointFilters":[{"description":"C++ Catch","filter":"cpp_catch","label":"C++ Catch","supportsCondition":true},{"description":"C++ Throw","filter":"cpp_throw","label":"C++ Throw","supportsCondition":true},{"description":"Objective-C Catch","filter":"objc_catch","label":"Objective-C Catch","supportsCondition":true},{"description":"Objective-C Throw","filter":"objc_throw","label":"Objective-C Throw","supportsCondition":true}],"supportTerminateDebuggee":true,"supportsBreakpointLocationsRequest":true,"supportsCancelRequest":true,"supportsCompletionsRequest":true,"supportsConditionalBreakpoints":true,"supportsConfigurationDoneRequest":true,"supportsDataBreakpoints":true,"supportsDelayedStackTraceLoading":true,"supportsDisassembleRequest":true,"supportsEvaluateForHovers":true,"supportsExceptionFilterOptions":true,"supportsExceptionInfoRequest":true,"supportsFunctionBreakpoints":true,"supportsHitConditionalBreakpoints":true,"supportsInstructionBreakpoints":true,"supportsLogPoints":true,"supportsModuleSymbolsRequest":true,"supportsModulesRequest":true,"supportsReadMemoryRequest":true,"supportsSetVariable":true,"supportsSteppingGranularity":true,"supportsValueFormattingOptions":true,"supportsWriteMemoryRequest":true},"command":"initialize","request_seq":1,"seq":0,"success":true,"type":"response"}

1757515915.945878029 (stdio) --> {"command":"launch","type":"request","arguments":{"program":"C:\\Users\\tcwg\\llvm-worker\\lldb-aarch64-windows\\build\\lldb-test-build.noindex\\tools\\lldb-dap\\launch\\TestDAP_launch.test_debuggerRoot\\a.out","initCommands":["settings clear --all","settings set symbols.enable-external-lookup false","settings set target.inherit-tcc true","settings set target.disable-aslr false","settings set target.detach-on-error false","settings set target.auto-apply-fixits false","settings set plugin.process.gdb-remote.packet-timeout 60","settings set symbols.clang-modules-cache-path \"C:/Users/tcwg/llvm-worker/lldb-aarch64-windows/build/lldb-test-build.noindex/module-cache-lldb\\lldb-api\"","settings set use-color false","settings set show-statusline false","settings set target.env-vars PATH=","platform shell echo cwd = %cd%"],"debuggerRoot":"C:\\Users\\tcwg\\llvm-worker\\lldb-aarch64-windows\\build\\lldb-test-build.noindex\\tools\\lldb-dap\\launch","disableASLR":false,"enableAutoVariableSummaries":false,"enableSyntheticChildDebugging":false,"displayExtendedBacktrace":false},"seq":2}

1757515915.945947170 (stdio) queued (command=launch seq=2)

1757515916.006413221 (stdio) <-- {"body":{"category":"console","output":"Running initCommands:\n"},"event":"output","seq":0,"type":"event"}

1757515916.006478071 (stdio) <-- {"body":{"category":"console","output":"(lldb) settings clear --all\n"},"event":"output","seq":0,"type":"event"}

```

</details>

https://github.com/llvm/llvm-project/pull/157485