[flang-commits] [flang] [flang][OpenMP] Lowering support for declare variant. (PR #206988)

Mon Jul 13 23:05:29 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-aarch64-sve-vls` running on `linaro-g3-02` while building `flang` at step 6 "build stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/143/builds/16090

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

```
Step 6 (build stage 1) failure: 'ninja' (failure)
...
-- backtrace facility detected in default set of libraries
-- Found Backtrace: /usr/include  
-- Looking for sinl in m
-- Looking for sinl in m - found
-- Performing Test LLVM_LINKER_SUPPORTS_B_SYMBOLIC_FUNCTIONS
-- Performing Test LLVM_LINKER_SUPPORTS_B_SYMBOLIC_FUNCTIONS - Success
-- Configuring done (13.8s)
-- Generating done (0.2s)
-- Build files have been written to: /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/runtimes/runtimes-bins
[9812/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Utils.cpp.o
FAILED: tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Utils.cpp.o 
/usr/local/bin/c++ -DFLANG_INCLUDE_TESTS=1 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/llvm/flang/lib/Lower -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/llvm/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/tools/flang/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/include -I/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/llvm/llvm/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/llvm/flang/../mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/tools/mlir/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/tools/clang/include -isystem /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/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 -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Xclang -fno-pch-timestamp -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 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -Winvalid-pch -Xclang -include-pch -Xclang /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/stage1/tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/cmake_pch.hxx -MD -MT tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Utils.cpp.o -MF tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Utils.cpp.o.d -o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Utils.cpp.o -c /home/tcwg-buildbot/worker/clang-aarch64-sve-vls/llvm/flang/lib/Lower/OpenMP/Utils.cpp
/home/tcwg-buildbot/worker/clang-aarch64-sve-vls/llvm/flang/lib/Lower/OpenMP/Utils.cpp:1420:3: error: unknown type name 'FlangOMPContext'
 1420 |   FlangOMPContext ompCtx{converter.getModuleOp(), constructTraits};
      |   ^
1 error generated.
[9822/9882] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/openmp-parsers.cpp.o
[9824/9882] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-complex.cpp.o
[9825/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/ReductionProcessor.cpp.o
[9826/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-cuda.cpp.o
[9827/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-do-forall.cpp.o
[9828/9882] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-logical.cpp.o
[9829/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Atomic.cpp.o
[9830/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o
[9831/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-directives.cpp.o
[9832/9882] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendActions.cpp.o
[9833/9882] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-real.cpp.o
[9834/9882] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
[9835/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/openmp-utils.cpp.o
[9836/9882] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/ParserActions.cpp.o
[9837/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/semantics.cpp.o
[9838/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/ClauseProcessor.cpp.o
[9839/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/Utils.cpp.o
[9840/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Bridge.cpp.o
[9841/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o
[9842/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenACC.cpp.o
[9843/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/expression.cpp.o
[9844/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Clauses.cpp.o
[9845/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names.cpp.o
[9846/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-structure.cpp.o
[9847/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o
[9848/9882] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-integer.cpp.o
[9849/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o
[9850/9882] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/tools.cpp.o
[9851/9882] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-atomic.cpp.o
[9852/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/OpenMP.cpp.o
[9853/9882] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExpr.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/206988