[clang-tools-extra] [clang-tidy] Adjust size-empty doc because C++11 size() is constant-time (PR #117629)

LLVM Continuous Integration via cfe-commits cfe-commits at lists.llvm.org
Mon Dec 2 17:49:52 PST 2024 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-aarch64-sve-vla` running on `linaro-g3-03` while building `clang-tools-extra` at step 6 "build stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/17/builds/4311

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

```
Step 6 (build stage 1) failure: 'ninja' (failure)
...
[3512/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-directives.cpp.o
[3513/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-do.cpp.o
[3514/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-acc.cpp.o
[3515/3925] Linking CXX static library lib/libclangDependencyScanning.a
[3516/3925] Linking CXX static library lib/liblldWasm.a
[3517/3925] Linking CXX static library lib/libclangHandleCXX.a
[3518/3925] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/program-parsers.cpp.o
[3519/3925] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/openacc-parsers.cpp.o
[3520/3925] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/openmp-parsers.cpp.o
[3521/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../clang/include -mcpu=neoverse-512tvb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower/ConvertExprToHLFIR.cpp
[3522/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../clang/include -mcpu=neoverse-512tvb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower/OpenMP/Decomposer.cpp
[3523/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../clang/include -mcpu=neoverse-512tvb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower/HostAssociations.cpp
[3524/3925] Linking CXX executable bin/clang-fuzzer-dictionary
[3525/3925] Linking CXX static library lib/liblldCOFF.a
[3526/3925] Linking CXX static library lib/liblldMachO.a
[3527/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../clang/include -mcpu=neoverse-512tvb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower/PFTBuilder.cpp
[3528/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../clang/include -mcpu=neoverse-512tvb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower/OpenMP/DataSharingProcessor.cpp
[3529/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -DFLANG_LITTLE_ENDIAN=1 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/llvm/../clang/include -mcpu=neoverse-512tvb -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-deprecated-copy -Wno-string-conversion -Wno-ctad-maybe-unsupported -Wno-unused-command-line-argument -Wstring-conversion           -Wcovered-switch-default -Wno-nested-anon-types -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vla/llvm/flang/lib/Lower/IterationSpace.cpp
[3530/3925] Linking CXX static library lib/liblldELF.a
[3531/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-purity.cpp.o
[3532/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-namelist.cpp.o
[3533/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/program-tree.cpp.o
[3534/3925] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertType.cpp.o
[3535/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-stop.cpp.o
[3536/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-arithmeticif.cpp.o
[3537/3925] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/openmp-modifiers.cpp.o
[3538/3925] Linking CXX executable bin/clang-offload-packager
[3539/3925] Linking CXX executable bin/llvm-ar
[3540/3925] Linking CXX executable bin/clang-linker-wrapper
[3541/3925] Linking CXX executable bin/clang-nvlink-wrapper
[3542/3925] Linking CXX shared library lib/libLTO.so.20.0git
[3543/3925] Linking CXX executable bin/mlir-translate
[3544/3925] Linking CXX executable bin/mlir-query
[3545/3925] Linking CXX executable bin/mlir-rewrite
[3546/3925] Linking CXX executable bin/mlir-cpu-runner
[3547/3925] Linking CXX executable bin/mlir-lsp-server
[3548/3925] Linking CXX executable bin/mlir-reduce

```

</details>

https://github.com/llvm/llvm-project/pull/117629

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