[flang-commits] [flang] [llvm] [flang][OpenMP] Semantic checks for context selectors (PR #123243)

Mon Feb 3 08:04:29 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64le-flang-rhel-clang` running on `ppc64le-flang-rhel-test` while building `flang` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/157/builds/18986

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
207.092 [123/54/6522] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/Fortran-parsers.cpp.o
207.978 [123/53/6523] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/PrivateReductionUtils.cpp.o
208.468 [123/52/6524] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/intrinsics.cpp.o
208.842 [123/51/6525] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/rewrite-directives.cpp.o
210.067 [123/50/6526] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/rewrite-parse-tree.cpp.o
211.141 [123/49/6527] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-acc.cpp.o
211.474 [123/48/6528] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/unparse-with-symbols.cpp.o
212.707 [123/47/6529] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/canonicalize-directives.cpp.o
212.917 [123/46/6530] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/pointer-assignment.cpp.o
213.222 [123/45/6531] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-structure.cpp.o
FAILED: tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-structure.cpp.o 
ccache /home/buildbots/llvm-external-buildbots/clang.19.1.7/bin/clang++ -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/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/tools/flang/lib/Semantics -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/tools/flang/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/llvm/include -isystem /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/llvm/../mlir/include -isystem /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/tools/mlir/include -isystem /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/build/tools/clang/include -isystem /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/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 -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Werror -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/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-structure.cpp.o -MF tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-structure.cpp.o.d -o tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-structure.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp:4728:32: error: captured structured bindings are a C++20 extension [-Werror,-Wc++20-extensions]
 4728 |                   context_.Say(traitName.source,
      |                                ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp:4721:14: note: 'traitName' declared here
 4721 |       auto &[traitName, maybeProps]{trait.t};
      |              ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp:4735:32: error: captured structured bindings are a C++20 extension [-Werror,-Wc++20-extensions]
 4735 |                   context_.Say(traitName.source,
      |                                ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp:4721:14: note: 'traitName' declared here
 4721 |       auto &[traitName, maybeProps]{trait.t};
      |              ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp:4742:32: error: captured structured bindings are a C++20 extension [-Werror,-Wc++20-extensions]
 4742 |                   context_.Say(traitName.source,
      |                                ^
/home/buildbots/llvm-external-buildbots/workers/ppc64le-flang-rhel-test/ppc64le-flang-rhel-clang-build/llvm-project/flang/lib/Semantics/check-omp-structure.cpp:4721:14: note: 'traitName' declared here
 4721 |       auto &[traitName, maybeProps]{trait.t};
      |              ^
3 errors generated.
214.250 [123/44/6532] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/VectorSubscripts.cpp.o
216.516 [123/43/6533] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/mod-file.cpp.o
227.269 [123/42/6534] Building CXX object tools/flang/tools/bbc/CMakeFiles/bbc.dir/bbc.cpp.o
227.896 [123/41/6535] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertConstant.cpp.o
229.018 [123/40/6536] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/CallInterface.cpp.o
230.011 [123/39/6537] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold-character.cpp.o
232.971 [123/38/6538] Building CXX object tools/flang/lib/Evaluate/CMakeFiles/FortranEvaluate.dir/fold.cpp.o
235.950 [123/37/6539] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Clauses.cpp.o
241.724 [123/36/6540] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o
242.101 [123/35/6541] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-call.cpp.o
257.637 [123/34/6542] Building CXX object tools/flang/lib/Parser/CMakeFiles/FortranParser.dir/openmp-parsers.cpp.o
258.789 [123/33/6543] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertProcedureDesignator.cpp.o
259.449 [123/32/6544] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IO.cpp.o
271.688 [123/31/6545] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o
275.777 [123/30/6546] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-coarray.cpp.o
280.519 [123/29/6547] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertCall.cpp.o
284.869 [123/28/6548] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertArrayConstructor.cpp.o
286.158 [123/27/6549] Building CXX object tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertType.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/123243