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

Mon Jul 13 22:27:15 PDT 2026

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/50/builds/23536

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
2329.768 [104/55/7508] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-select-type.cpp.o
2331.191 [104/54/7509] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-complex.cpp.o
2332.544 [104/53/7510] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/MultiImageFortran.cpp.o
2334.241 [104/52/7511] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/VectorSubscripts.cpp.o
2336.453 [104/51/7512] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IO.cpp.o
2336.805 [104/50/7513] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/definable.cpp.o
2336.823 [104/49/7514] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/runtime-type-info.cpp.o
2337.984 [104/48/7515] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-coarray.cpp.o
2345.913 [104/47/7516] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-io.cpp.o
2348.824 [104/46/7517] 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-dylib/build/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/flang-aarch64-dylib/llvm-project/flang/lib/Lower -I/home/tcwg-buildbot/worker/flang-aarch64-dylib/llvm-project/flang/include -I/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/tools/flang/include -I/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/include -I/home/tcwg-buildbot/worker/flang-aarch64-dylib/llvm-project/llvm/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-dylib/llvm-project/flang/../mlir/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-dylib/build/tools/mlir/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-dylib/build/tools/clang/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-dylib/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 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -Winvalid-pch -Xclang -include-pch -Xclang /home/tcwg-buildbot/worker/flang-aarch64-dylib/build/tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /home/tcwg-buildbot/worker/flang-aarch64-dylib/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-dylib/llvm-project/flang/lib/Lower/OpenMP/Utils.cpp
/home/tcwg-buildbot/worker/flang-aarch64-dylib/llvm-project/flang/lib/Lower/OpenMP/Utils.cpp:1420:3: error: unknown type name 'FlangOMPContext'
 1420 |   FlangOMPContext ompCtx{converter.getModuleOp(), constructTraits};
      |   ^
1 error generated.
2356.912 [104/45/7518] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertVariable.cpp.o
2357.258 [104/44/7519] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Allocatable.cpp.o
2361.544 [104/43/7520] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-do-forall.cpp.o
2363.624 [104/42/7521] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-logical.cpp.o
2371.391 [104/41/7522] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/tools.cpp.o
2375.235 [104/40/7523] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertArrayConstructor.cpp.o
2375.749 [104/39/7524] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/pointer-assignment.cpp.o
2381.518 [104/38/7525] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/symbol.cpp.o
2383.556 [104/37/7526] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/ReductionProcessor.cpp.o
2385.826 [104/36/7527] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/data-to-inits.cpp.o
2393.736 [104/35/7528] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/unparse-with-symbols.cpp.o
2394.157 [104/34/7529] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/rewrite-parse-tree.cpp.o
2394.756 [104/33/7530] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertCall.cpp.o
2399.309 [104/32/7531] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/mod-file.cpp.o
2400.056 [104/31/7532] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Atomic.cpp.o
2402.276 [104/30/7533] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-labels.cpp.o
2403.648 [104/29/7534] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-loop.cpp.o
2408.428 [104/28/7535] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names-utils.cpp.o
2411.927 [104/27/7536] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/type.cpp.o
2412.918 [104/26/7537] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/scope.cpp.o
2414.211 [104/25/7538] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
2415.829 [104/24/7539] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenACC.cpp.o
2418.131 [104/23/7540] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-real.cpp.o
2422.715 [104/22/7541] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o
2428.419 [104/21/7542] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/openmp-parsers.cpp.o
2478.313 [104/20/7543] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendActions.cpp.o
2487.511 [104/19/7544] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/Utils.cpp.o
2503.488 [104/18/7545] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/ClauseProcessor.cpp.o
2506.492 [104/17/7546] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o
2525.913 [104/16/7547] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-directives.cpp.o
2526.877 [104/15/7548] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/ParserActions.cpp.o
2535.147 [104/14/7549] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Clauses.cpp.o
2539.506 [104/13/7550] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-integer.cpp.o

```

</details>

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