[llvm] [LLVM][CostModel][AArch64] Remove magic numbers from f16 vector compares. (PR #135795)

Tue Apr 22 03:53:56 PDT 2025

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/59/builds/16424

<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/databreakpoint/TestDAP_setDataBreakpoints.py (1167 of 2125)
PASS: lldb-api :: tools/lldb-dap/instruction-breakpoint/TestDAP_instruction_breakpoint.py (1168 of 2125)
PASS: lldb-api :: tools/lldb-dap/disconnect/TestDAP_disconnect.py (1169 of 2125)
PASS: lldb-api :: tools/lldb-dap/io/TestDAP_io.py (1170 of 2125)
PASS: lldb-api :: tools/lldb-dap/locations/TestDAP_locations.py (1171 of 2125)
PASS: lldb-api :: tools/lldb-dap/cancel/TestDAP_cancel.py (1172 of 2125)
PASS: lldb-api :: terminal/TestEditline.py (1173 of 2125)
PASS: lldb-api :: tools/lldb-dap/output/TestDAP_output.py (1174 of 2125)
PASS: lldb-api :: tools/lldb-dap/optimized/TestDAP_optimized.py (1175 of 2125)
UNRESOLVED: lldb-api :: tools/lldb-dap/memory/TestDAP_memory.py (1176 of 2125)
******************** TEST 'lldb-api :: tools/lldb-dap/memory/TestDAP_memory.py' FAILED ********************
Script:
--
/usr/bin/python3.10 /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib --env LLVM_INCLUDE_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/include --env LLVM_TOOLS_DIR=/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --arch aarch64 --build-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex --lldb-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/lldb --compiler /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/clang --dsymutil /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./bin --lldb-obj-root /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/tools/lldb --lldb-libs-dir /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/./lib /home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/llvm-project/lldb/test/API/tools/lldb-dap/memory -p TestDAP_memory.py
--
Exit Code: 1

Command Output (stdout):
--
lldb version 21.0.0git (https://github.com/llvm/llvm-project.git revision a095ebc58c9f7cd0d39796ed0aabc63b23ed88ce)
  clang revision a095ebc58c9f7cd0d39796ed0aabc63b23ed88ce
  llvm revision a095ebc58c9f7cd0d39796ed0aabc63b23ed88ce
Skipping the following test categories: ['libc++', 'dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
========= DEBUG ADAPTER PROTOCOL LOGS =========
1745319163.503391504 --> (stdin/stdout) {"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,"$__lldb_sourceInitFile":false},"seq":1}
1745319163.505473852 <-- (stdin/stdout) {"body":{"$__lldb_version":"lldb version 21.0.0git (https://github.com/llvm/llvm-project.git revision a095ebc58c9f7cd0d39796ed0aabc63b23ed88ce)\n  clang revision a095ebc58c9f7cd0d39796ed0aabc63b23ed88ce\n  llvm revision a095ebc58c9f7cd0d39796ed0aabc63b23ed88ce","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"}
1745319163.505726814 --> (stdin/stdout) {"command":"launch","type":"request","arguments":{"program":"/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/tools/lldb-dap/memory/TestDAP_memory.test_memory_refs_evaluate/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-aarch64-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,"commandEscapePrefix":null},"seq":2}
1745319163.505931854 <-- (stdin/stdout) {"body":{"category":"console","output":"Running initCommands:\n"},"event":"output","seq":0,"type":"event"}
1745319163.505956173 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings clear -all\n"},"event":"output","seq":0,"type":"event"}
1745319163.505966902 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set symbols.enable-external-lookup false\n"},"event":"output","seq":0,"type":"event"}
1745319163.505975723 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set target.inherit-tcc true\n"},"event":"output","seq":0,"type":"event"}
1745319163.505984068 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set target.disable-aslr false\n"},"event":"output","seq":0,"type":"event"}
1745319163.505991936 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set target.detach-on-error false\n"},"event":"output","seq":0,"type":"event"}
1745319163.505999565 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set target.auto-apply-fixits false\n"},"event":"output","seq":0,"type":"event"}
1745319163.506007433 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set plugin.process.gdb-remote.packet-timeout 60\n"},"event":"output","seq":0,"type":"event"}
1745319163.506026268 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set symbols.clang-modules-cache-path \"/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/module-cache-lldb/lldb-api\"\n"},"event":"output","seq":0,"type":"event"}
1745319163.506034374 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set use-color false\n"},"event":"output","seq":0,"type":"event"}
1745319163.506067276 <-- (stdin/stdout) {"body":{"category":"console","output":"(lldb) settings set show-statusline false\n"},"event":"output","seq":0,"type":"event"}
1745319163.584383726 <-- (stdin/stdout) {"command":"launch","request_seq":2,"seq":0,"success":true,"type":"response"}
1745319163.584448576 <-- (stdin/stdout) {"body":{"isLocalProcess":true,"name":"/home/tcwg-buildbot/worker/lldb-aarch64-ubuntu/build/lldb-test-build.noindex/tools/lldb-dap/memory/TestDAP_memory.test_memory_refs_evaluate/a.out","startMethod":"launch","systemProcessId":162462},"event":"process","seq":0,"type":"event"}
1745319163.584458351 <-- (stdin/stdout) {"event":"initialized","seq":0,"type":"event"}
1745319163.584759951 --> (stdin/stdout) {"command":"setBreakpoints","type":"request","arguments":{"source":{"name":"main.cpp","path":"main.cpp"},"sourceModified":false,"lines":[4],"breakpoints":[{"line":4}]},"seq":3}
1745319163.585951567 <-- (stdin/stdout) {"body":{"breakpoints":[{"column":3,"id":1,"instructionReference":"0xAAAABC4A0734","line":5,"source":{"name":"main.cpp","path":"main.cpp"},"verified":true}]},"command":"setBreakpoints","request_seq":3,"seq":0,"success":true,"type":"response"}
1745319163.585972548 <-- (stdin/stdout) {"body":{"breakpoint":{"column":3,"id":1,"instructionReference":"0xAAAABC4A0734","line":5,"verified":true},"reason":"changed"},"event":"breakpoint","seq":0,"type":"event"}
1745319163.586136580 --> (stdin/stdout) {"command":"configurationDone","type":"request","arguments":{},"seq":4}

```

</details>

https://github.com/llvm/llvm-project/pull/135795