[llvm] [ConstantFolding] Add flag to disable call folding (PR #140270)

Fri May 30 03:47:53 PDT 2025

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/16796

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

```
Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: tools/lldb-dap/variables/children/TestDAP_variables_children.py (1222 of 3095)
UNSUPPORTED: lldb-api :: tools/lldb-server/TestAppleSimulatorOSType.py (1223 of 3095)
PASS: lldb-api :: tools/lldb-dap/threads/TestDAP_threads.py (1224 of 3095)
PASS: lldb-api :: tools/lldb-server/TestGdbRemoteAttach.py (1225 of 3095)
PASS: lldb-api :: tools/lldb-server/TestGdbRemoteCompletion.py (1226 of 3095)
PASS: lldb-api :: tools/lldb-server/TestGdbRemoteExitCode.py (1227 of 3095)
UNSUPPORTED: lldb-api :: tools/lldb-server/TestGdbRemoteFork.py (1228 of 3095)
UNSUPPORTED: lldb-api :: tools/lldb-server/TestGdbRemoteForkNonStop.py (1229 of 3095)
UNSUPPORTED: lldb-api :: tools/lldb-server/TestGdbRemoteForkResume.py (1230 of 3095)
PASS: lldb-api :: tools/lldb-server/TestGdbRemoteAuxvSupport.py (1231 of 3095)
FAIL: lldb-api :: tools/lldb-dap/variables/TestDAP_variables.py (1232 of 3095)
******************** TEST 'lldb-api :: tools/lldb-dap/variables/TestDAP_variables.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 --cmake-build-type Release /home/tcwg-buildbot/worker/lldb-arm-ubuntu/llvm-project/lldb/test/API/tools/lldb-dap/variables -p TestDAP_variables.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 21.0.0git (https://github.com/llvm/llvm-project.git revision 1f7885cf9c6801d11491c8c194c999f7223dd141)
  clang revision 1f7885cf9c6801d11491c8c194c999f7223dd141
  llvm revision 1f7885cf9c6801d11491c8c194c999f7223dd141
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_darwin_dwarf_missing_obj (TestDAP_variables.TestDAP_variables) (requires one of macosx, darwin, ios, tvos, watchos, bridgeos, iphonesimulator, watchsimulator, appletvsimulator) 
UNSUPPORTED: LLDB (/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/bin/clang-arm) :: test_darwin_dwarf_missing_obj_with_symbol_ondemand_enabled (TestDAP_variables.TestDAP_variables) (requires one of macosx, darwin, ios, tvos, watchos, bridgeos, iphonesimulator, watchsimulator, appletvsimulator) 
========= DEBUG ADAPTER PROTOCOL LOGS =========
1748601886.723957777 --> (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,"$__lldb_sourceInitFile":false},"seq":1}
1748601886.727401495 <-- (stdio) {"body":{"$__lldb_version":"lldb version 21.0.0git (https://github.com/llvm/llvm-project.git revision 1f7885cf9c6801d11491c8c194c999f7223dd141)\n  clang revision 1f7885cf9c6801d11491c8c194c999f7223dd141\n  llvm revision 1f7885cf9c6801d11491c8c194c999f7223dd141","completionTriggerCharacters":["."," ","\t"],"exceptionBreakpointFilters":[{"default":false,"filter":"cpp_catch","label":"C++ Catch"},{"default":false,"filter":"cpp_throw","label":"C++ Throw"},{"default":false,"filter":"objc_catch","label":"Objective-C Catch"},{"default":false,"filter":"objc_throw","label":"Objective-C Throw"}],"supportTerminateDebuggee":true,"supportsBreakpointLocationsRequest":true,"supportsCancelRequest":true,"supportsCompletionsRequest":true,"supportsConditionalBreakpoints":true,"supportsConfigurationDoneRequest":true,"supportsDataBreakpoints":true,"supportsDelayedStackTraceLoading":true,"supportsDisassembleRequest":true,"supportsEvaluateForHovers":true,"supportsExceptionInfoRequest":true,"supportsExceptionOptions":true,"supportsFunctionBreakpoints":true,"supportsHitConditionalBreakpoints":true,"supportsInstructionBreakpoints":true,"supportsLogPoints":true,"supportsModulesRequest":true,"supportsReadMemoryRequest":true,"supportsRestartRequest":true,"supportsSetVariable":true,"supportsStepInTargetsRequest":true,"supportsSteppingGranularity":true,"supportsValueFormattingOptions":true},"command":"initialize","request_seq":1,"seq":0,"success":true,"type":"response"}
1748601886.727997541 --> (stdio) {"command":"launch","type":"request","arguments":{"program":"/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/tools/lldb-dap/variables/TestDAP_variables.test_indexedVariables/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 \"/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api\"","settings set use-color false","settings set show-statusline false"],"disableASLR":false,"enableAutoVariableSummaries":false,"enableSyntheticChildDebugging":false,"displayExtendedBacktrace":false},"seq":2}
1748601886.728522062 <-- (stdio) {"body":{"category":"console","output":"Running initCommands:\n"},"event":"output","seq":0,"type":"event"}
1748601886.728566647 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings clear --all\n"},"event":"output","seq":0,"type":"event"}
1748601886.728588820 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set symbols.enable-external-lookup false\n"},"event":"output","seq":0,"type":"event"}
1748601886.728600979 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set target.inherit-tcc true\n"},"event":"output","seq":0,"type":"event"}
1748601886.728612661 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set target.disable-aslr false\n"},"event":"output","seq":0,"type":"event"}
1748601886.728623867 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set target.detach-on-error false\n"},"event":"output","seq":0,"type":"event"}
1748601886.728635073 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set target.auto-apply-fixits false\n"},"event":"output","seq":0,"type":"event"}
1748601886.728647232 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set plugin.process.gdb-remote.packet-timeout 60\n"},"event":"output","seq":0,"type":"event"}
1748601886.728676081 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set symbols.clang-modules-cache-path \"/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api\"\n"},"event":"output","seq":0,"type":"event"}
1748601886.728689432 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set use-color false\n"},"event":"output","seq":0,"type":"event"}
1748601886.728701115 <-- (stdio) {"body":{"category":"console","output":"(lldb) settings set show-statusline false\n"},"event":"output","seq":0,"type":"event"}
1748601886.894868374 <-- (stdio) {"command":"launch","request_seq":2,"seq":0,"success":true,"type":"response"}
1748601886.894940615 <-- (stdio) {"event":"initialized","seq":0,"type":"event"}
1748601886.894950867 <-- (stdio) {"body":{"module":{"addressRange":"0xf7c0b000","debugInfoSize":"983.3KB","id":"0D794E6C-AF7E-D8CB-B9BA-E385B4F8753F-5A793D65","name":"ld-linux-armhf.so.3","path":"/usr/lib/arm-linux-gnueabihf/ld-linux-armhf.so.3","symbolFilePath":"/usr/lib/arm-linux-gnueabihf/ld-linux-armhf.so.3","symbolStatus":"Symbols loaded."},"reason":"new"},"event":"module","seq":0,"type":"event"}
1748601886.895180464 <-- (stdio) {"body":{"module":{"addressRange":"0x5e0000","debugInfoSize":"25.5KB","id":"ADAECA3F","name":"a.out","path":"/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/tools/lldb-dap/variables/TestDAP_variables.test_indexedVariables/a.out","symbolFilePath":"/home/tcwg-buildbot/worker/lldb-arm-ubuntu/build/lldb-test-build.noindex/tools/lldb-dap/variables/TestDAP_variables.test_indexedVariables/a.out","symbolStatus":"Symbols loaded."},"reason":"new"},"event":"module","seq":0,"type":"event"}

```

</details>

https://github.com/llvm/llvm-project/pull/140270