[clang] [CIR][NVPTX][NFC] Add initial NVPTX builtin infrastructure (PR #195214)

Sun May 3 18:43:31 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 `clang` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/50/builds/22293

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
2691.242 [38/8/7518] Linking CXX executable bin/tco
2691.412 [38/7/7519] Linking CXX executable bin/fir-opt
2723.106 [38/6/7520] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/ParserActions.cpp.o
2724.088 [38/5/7521] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-directives.cpp.o
2742.166 [38/4/7522] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/openmp-utils.cpp.o
2758.378 [38/3/7523] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/semantics.cpp.o
2800.601 [38/2/7524] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/expression.cpp.o
2818.835 [38/1/7525] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names.cpp.o
2820.718 [37/1/7526] Linking CXX static library lib/libFortranSemantics.a
2821.638 [30/7/7527] Linking CXX static library lib/libFortranLower.a
FAILED: lib/libFortranLower.a 
: && /usr/local/bin/cmake -E rm -f lib/libFortranLower.a && /usr/local/bin/llvm-ar Dqc lib/libFortranLower.a  tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Allocatable.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Bridge.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/CallInterface.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ComponentPath.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertArrayConstructor.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertCall.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertConstant.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExpr.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertExprToHLFIR.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertProcedureDesignator.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertType.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/ConvertVariable.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/CUDA.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/CustomIntrinsicCall.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HlfirIntrinsics.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/HostAssociations.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IO.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/IterationSpace.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/LoweringOptions.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Mangler.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/MultiImageFortran.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenACC.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Atomic.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/ClauseProcessor.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Clauses.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/DataSharingProcessor.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Decomposer.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/OpenMP.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/OpenMP/Utils.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/PFTBuilder.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Runtime.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/PrivateReductionUtils.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/ReductionProcessor.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/Support/Utils.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/SymbolMap.cpp.o tools/flang/lib/Lower/CMakeFiles/FortranLower.dir/VectorSubscripts.cpp.o && /usr/bin/llvm-ranlib -D lib/libFortranLower.a && :
LLVM ERROR: IO failure on output stream: No space left on device
2822.488 [30/6/7528] Linking CXX executable tools/flang/unittests/Evaluate/logical.test
FAILED: tools/flang/unittests/Evaluate/logical.test 
: && /usr/local/bin/c++ -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  tools/flang/unittests/Evaluate/CMakeFiles/logical.test.dir/logical.cpp.o -o tools/flang/unittests/Evaluate/logical.test  -Wl,-rpath,/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/lib  lib/libNonGTestTesting.a  lib/libFortranEvaluate.a  lib/libFortranSemantics.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranParser.a  lib/libFortranSupport.a  lib/libMLIR.so.23.0git  lib/libclang-cpp.so.23.0git  lib/libLLVM.so.23.0git && :
/usr/bin/ld: final link failed: No space left on device
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
2822.491 [30/5/7529] Linking CXX executable tools/flang/unittests/Evaluate/real.test
FAILED: tools/flang/unittests/Evaluate/real.test 
: && /usr/local/bin/c++ -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  tools/flang/unittests/Evaluate/CMakeFiles/real.test.dir/real.cpp.o -o tools/flang/unittests/Evaluate/real.test  -Wl,-rpath,/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/lib  lib/libNonGTestTesting.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranSemantics.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranParser.a  lib/libFortranSupport.a  lib/libMLIR.so.23.0git  lib/libclang-cpp.so.23.0git  lib/libLLVM.so.23.0git && :
/usr/bin/ld: final link failed: No space left on device
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
2822.531 [30/4/7530] Linking CXX executable tools/flang/unittests/Evaluate/integer.test
FAILED: tools/flang/unittests/Evaluate/integer.test 
: && /usr/local/bin/c++ -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  tools/flang/unittests/Evaluate/CMakeFiles/integer.test.dir/integer.cpp.o -o tools/flang/unittests/Evaluate/integer.test  -Wl,-rpath,/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/lib  lib/libNonGTestTesting.a  lib/libFortranEvaluate.a  lib/libFortranSemantics.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranParser.a  lib/libFortranSupport.a  lib/libMLIR.so.23.0git  lib/libclang-cpp.so.23.0git  lib/libLLVM.so.23.0git && :
/usr/bin/ld: final link failed: No space left on device
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
2827.431 [30/3/7531] Linking CXX executable tools/flang/unittests/Evaluate/intrinsics.test
FAILED: tools/flang/unittests/Evaluate/intrinsics.test 
: && /usr/local/bin/c++ -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  tools/flang/unittests/Evaluate/CMakeFiles/intrinsics.test.dir/intrinsics.cpp.o -o tools/flang/unittests/Evaluate/intrinsics.test  -Wl,-rpath,/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/lib  lib/libFortranSupport.a  lib/libNonGTestTesting.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranSemantics.a  lib/libFortranParser.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranParser.a  lib/libFortranSupport.a  lib/libMLIR.so.23.0git  lib/libclang-cpp.so.23.0git  lib/libLLVM.so.23.0git && :
/usr/bin/ld: final link failed: No space left on device
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
2827.807 [30/2/7532] Linking CXX executable tools/flang/unittests/Evaluate/folding.test
FAILED: tools/flang/unittests/Evaluate/folding.test 
: && /usr/local/bin/c++ -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  tools/flang/unittests/Evaluate/CMakeFiles/folding.test.dir/folding.cpp.o -o tools/flang/unittests/Evaluate/folding.test  -Wl,-rpath,/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/lib  lib/libFortranSupport.a  lib/libNonGTestTesting.a  lib/libFortranEvaluate.a  lib/libFortranSemantics.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranParser.a  lib/libFortranSupport.a  lib/libMLIR.so.23.0git  lib/libclang-cpp.so.23.0git  lib/libLLVM.so.23.0git && :
/usr/bin/ld: final link failed: No space left on device
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
2827.870 [30/1/7533] Linking CXX executable tools/flang/unittests/Evaluate/expression.test
FAILED: tools/flang/unittests/Evaluate/expression.test 
: && /usr/local/bin/c++ -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  tools/flang/unittests/Evaluate/CMakeFiles/expression.test.dir/expression.cpp.o -o tools/flang/unittests/Evaluate/expression.test  -Wl,-rpath,/home/tcwg-buildbot/worker/flang-aarch64-dylib/build/lib  lib/libFortranSupport.a  lib/libNonGTestTesting.a  lib/libFortranEvaluate.a  lib/libFortranSemantics.a  lib/libFortranParser.a  lib/libFortranEvaluate.a  lib/libFortranDecimal.a  lib/libFortranParser.a  lib/libFortranSupport.a  lib/libMLIR.so.23.0git  lib/libclang-cpp.so.23.0git  lib/libLLVM.so.23.0git && :
/usr/bin/ld: final link failed: No space left on device
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/195214