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

Mon Jul 13 22:58:11 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `flang-aarch64-sharedlibs` running on `linaro-flang-aarch64-sharedlibs` while building `flang` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/80/builds/23482

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
1797.507 [78/79/8346] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-nullify.cpp.o
1797.624 [50/106/8346] No install step for 'builtins'
1797.693 [49/106/8348] Completed 'builtins'
1798.060 [49/105/8349] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-stop.cpp.o
1798.199 [49/104/8350] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertProcedureDesignator.cpp.o
1798.411 [49/103/8351] Linking CXX shared library lib/libFIRTestAnalysis.so.23.0git
1800.784 [49/102/8352] Linking CXX executable bin/fir-lsp-server
1801.507 [49/101/8353] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/CodeGenOptions.cpp.o
1801.701 [49/100/8354] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/MultiImageFortran.cpp.o
1802.384 [49/99/8355] 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/flang-aarch64-sharedlibs/build/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/llvm-project/flang/lib/Lower -I/home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/llvm-project/flang/include -I/home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/build/tools/flang/include -I/home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/build/include -I/home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/llvm-project/llvm/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/llvm-project/flang/../mlir/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/build/tools/mlir/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/build/tools/clang/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/llvm-project/llvm/../clang/include -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 -fPIC -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -Winvalid-pch -Xclang -include-pch -Xclang /home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/build/tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/build/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/flang-aarch64-sharedlibs/llvm-project/flang/lib/Lower/OpenMP/Utils.cpp
/home/tcwg-buildbot/worker/flang-aarch64-sharedlibs/llvm-project/flang/lib/Lower/OpenMP/Utils.cpp:1420:3: error: unknown type name 'FlangOMPContext'
 1420 |   FlangOMPContext ompCtx{converter.getModuleOp(), constructTraits};
      |   ^
1 error generated.
1803.014 [49/98/8356] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/intrinsics-library.cpp.o
1803.571 [49/97/8357] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/TextDiagnosticPrinter.cpp.o
1803.857 [49/96/8358] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendOptions.cpp.o
1804.895 [49/95/8359] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/TextDiagnosticBuffer.cpp.o
1805.594 [49/94/8360] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/TextDiagnostic.cpp.o
1806.096 [49/93/8361] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/call.cpp.o
1806.630 [49/92/8362] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/compute-offsets.cpp.o
1808.142 [49/91/8363] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/program-tree.cpp.o
1812.584 [49/90/8364] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/CompilerInstance.cpp.o
1814.617 [49/89/8365] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Mangler.cpp.o
1819.456 [49/88/8366] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/shape.cpp.o
1819.783 [49/87/8367] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/assignment.cpp.o
1820.401 [49/86/8368] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendAction.cpp.o
1821.032 [49/85/8369] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/CompilerInvocation.cpp.o
1821.671 [49/84/8370] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-select-type.cpp.o
1825.444 [49/83/8371] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/executable-parsers.cpp.o
1825.851 [49/82/8372] Building CXX object tools/flang/tools/f18-parse-demo/CMakeFiles/f18-parse-demo.dir/f18-parse-demo.cpp.o
1831.322 [49/81/8373] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/CustomIntrinsicCall.cpp.o
1831.814 [49/80/8374] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-omp.cpp.o
1832.626 [49/79/8375] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/definable.cpp.o
1833.212 [49/78/8376] Building CXX object tools/flang/lib/Utils/CMakeFiles/FortranUtils.dir/OpenMP.cpp.o
1833.605 [49/77/8377] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold.cpp.o
1835.032 [49/76/8378] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o
1838.160 [49/75/8379] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-io.cpp.o
1838.361 [49/74/8380] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertConstant.cpp.o
1841.942 [49/73/8381] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-directives.cpp.o
1842.023 [49/72/8382] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-variant.cpp.o
1844.044 [49/71/8383] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IO.cpp.o
1844.390 [49/70/8384] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-case.cpp.o
1844.797 [49/69/8385] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/VectorSubscripts.cpp.o
1845.769 [49/68/8386] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/type.cpp.o
1847.017 [49/67/8387] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/openmp-parsers.cpp.o
1847.208 [49/66/8388] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/dump-expr.cpp.o

```

</details>

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