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

Mon Jul 13 20:09:56 PDT 2026

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/172/builds/23146

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
1667.911 [77/69/7513] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-variant.cpp.o
1668.969 [77/68/7514] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/TextDiagnosticBuffer.cpp.o
1669.500 [77/67/7515] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendOptions.cpp.o
1669.945 [77/66/7516] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/VectorSubscripts.cpp.o
1670.338 [77/65/7517] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-select-rank.cpp.o
1670.404 [77/64/7518] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/TextDiagnostic.cpp.o
1670.842 [77/63/7519] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/CodeGenOptions.cpp.o
1671.780 [77/62/7520] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/TextDiagnosticPrinter.cpp.o
1674.253 [77/61/7521] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/CompilerInstance.cpp.o
1675.583 [77/60/7522] 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_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/tcwg-buildbot/worker/flang-aarch64-release/build/tools/flang/lib/Lower -I/home/tcwg-buildbot/worker/flang-aarch64-release/llvm-project/flang/lib/Lower -I/home/tcwg-buildbot/worker/flang-aarch64-release/llvm-project/flang/include -I/home/tcwg-buildbot/worker/flang-aarch64-release/build/tools/flang/include -I/home/tcwg-buildbot/worker/flang-aarch64-release/build/include -I/home/tcwg-buildbot/worker/flang-aarch64-release/llvm-project/llvm/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-release/llvm-project/flang/../mlir/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-release/build/tools/mlir/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-release/build/tools/clang/include -isystem /home/tcwg-buildbot/worker/flang-aarch64-release/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 -fno-exceptions -funwind-tables -fno-rtti -Winvalid-pch -Xclang -include-pch -Xclang /home/tcwg-buildbot/worker/flang-aarch64-release/build/tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/cmake_pch.hxx.pch -Xclang -include -Xclang /home/tcwg-buildbot/worker/flang-aarch64-release/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-release/llvm-project/flang/lib/Lower/OpenMP/Utils.cpp
/home/tcwg-buildbot/worker/flang-aarch64-release/llvm-project/flang/lib/Lower/OpenMP/Utils.cpp:1420:3: error: unknown type name 'FlangOMPContext'
 1420 |   FlangOMPContext ompCtx{converter.getModuleOp(), constructTraits};
      |   ^
1 error generated.
1676.374 [77/59/7523] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/assignment.cpp.o
1676.610 [77/58/7524] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/CompilerInvocation.cpp.o
1677.170 [77/57/7525] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/FrontendAction.cpp.o
1679.376 [77/56/7526] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-data.cpp.o
1680.122 [77/55/7527] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertVariable.cpp.o
1681.330 [77/54/7528] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-allocate.cpp.o
1682.151 [77/53/7529] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/compute-offsets.cpp.o
1686.647 [77/52/7530] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-declarations.cpp.o
1689.962 [77/51/7531] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-omp.cpp.o
1690.182 [77/50/7532] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-deallocate.cpp.o
1694.164 [77/49/7533] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-do.cpp.o
1695.922 [77/48/7534] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-directives.cpp.o
1695.962 [77/47/7535] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-acc.cpp.o
1698.674 [77/46/7536] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-case.cpp.o
1701.952 [77/45/7537] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/dump-expr.cpp.o
1702.436 [77/44/7538] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Atomic.cpp.o
1702.801 [77/43/7539] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/check-expression.cpp.o
1703.099 [77/42/7540] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o
1712.184 [77/41/7541] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/tools.cpp.o
1713.379 [77/40/7542] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-select-type.cpp.o
1714.631 [77/39/7543] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/symbol.cpp.o
1715.776 [77/38/7544] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/scope.cpp.o
1718.609 [77/37/7545] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/runtime-type-info.cpp.o
1722.610 [77/36/7546] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names-utils.cpp.o
1722.681 [77/35/7547] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-call.cpp.o
1724.210 [77/34/7548] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/rewrite-parse-tree.cpp.o
1724.211 [77/33/7549] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/type.cpp.o
1732.001 [77/32/7550] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/unparse-with-symbols.cpp.o
1732.201 [77/31/7551] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-loop.cpp.o
1741.823 [77/30/7552] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenACC.cpp.o
1743.307 [77/29/7553] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-io.cpp.o
1743.676 [77/28/7554] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/mod-file.cpp.o
1745.664 [77/27/7555] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-coarray.cpp.o

```

</details>

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