[libc] [llvm] [LLVM] Make the GPU loader utilities an LLVM tool (PR #132096)

Fri Mar 21 09:42:59 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64-aix` running on `aix-ppc64` while building `libc,llvm` at step 3 "clean-build-dir".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/64/builds/2545

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

```
Step 3 (clean-build-dir) failure: Delete failed. (failure) (timed out)
Step 5 (build-unified-tree) failure: build (failure)
...
6304.164 [424/10/4895] Building CXX object tools/llvm-exegesis/lib/PowerPC/CMakeFiles/LLVMExegesisPowerPC.dir/Target.cpp.o
6304.266 [423/10/4896] Building CXX object tools/llvm-exegesis/lib/Mips/CMakeFiles/LLVMExegesisMips.dir/Target.cpp.o
6304.367 [422/10/4897] Building Opts.inc...
6304.929 [421/10/4898] Building CXX object tools/llvm-exegesis/lib/AArch64/CMakeFiles/LLVMExegesisAArch64.dir/Target.cpp.o
6305.084 [420/10/4899] Building Opts.inc...
6305.379 [419/10/4900] Building CXX object tools/llvm-isel-fuzzer/CMakeFiles/llvm-isel-fuzzer.dir/DummyISelFuzzer.cpp.o
6308.038 [418/10/4901] Building CXX object tools/llvm-gsymutil/CMakeFiles/llvm-gsymutil.dir/llvm-gsymutil-driver.cpp.o
6309.637 [417/10/4902] Building CXX object tools/llvm-ifs/CMakeFiles/llvm-ifs.dir/ErrorCollector.cpp.o
6314.362 [416/10/4903] Building CXX object tools/llvm-ifs/CMakeFiles/llvm-ifs.dir/llvm-ifs-driver.cpp.o
6314.460 [415/10/4904] Building CXX object tools/llvm-gpu-loader/CMakeFiles/llvm-gpu-loader.dir/llvm-gpu-loader.cpp.o
FAILED: tools/llvm-gpu-loader/CMakeFiles/llvm-gpu-loader.dir/llvm-gpu-loader.cpp.o 
/usr/local/clang-17.0.2/bin/clang++ -DGTEST_HAS_RTTI=0 -DLIBC_NAMESPACE=__llvm_libc_common_utils -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_LARGE_FILE_API -D_XOPEN_SOURCE=700 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/build/tools/llvm-gpu-loader -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/build/include -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/include -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc -mcmodel=large -fPIC -Werror -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 -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -pthread -MD -MT tools/llvm-gpu-loader/CMakeFiles/llvm-gpu-loader.dir/llvm-gpu-loader.cpp.o -MF tools/llvm-gpu-loader/CMakeFiles/llvm-gpu-loader.dir/llvm-gpu-loader.cpp.o.d -o tools/llvm-gpu-loader/CMakeFiles/llvm-gpu-loader.dir/llvm-gpu-loader.cpp.o -c /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.cpp
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.cpp:15:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.h:16:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/shared/rpc_server.h:12:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/RPC/rpc_server.h:38:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/stdio/printf_core/converter.h:13:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/stdio/printf_core/core_structs.h:15:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/CPP/type_traits.h:29:
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/CPP/type_traits/is_complex.h:31:34: error: '_Complex' is a C99 extension [-Werror,-Wc99-extensions]
   31 |       __is_unqualified_any_of<T, _Complex float, _Complex double,
      |                                  ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/CPP/type_traits/is_complex.h:31:50: error: '_Complex' is a C99 extension [-Werror,-Wc99-extensions]
   31 |       __is_unqualified_any_of<T, _Complex float, _Complex double,
      |                                                  ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/CPP/type_traits/is_complex.h:32:31: error: '_Complex' is a C99 extension [-Werror,-Wc99-extensions]
   32 |                               _Complex long double
      |                               ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.cpp:138:18: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
  138 |     report_error(std::move(elf_or_err.takeError()));
      |                  ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.cpp:138:18: note: remove std::move call here
  138 |     report_error(std::move(elf_or_err.takeError()));
      |                  ^~~~~~~~~~                      ~
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.cpp:132:20: error: unused variable 'params' [-Werror,-Wunused-variable]
  132 |   LaunchParameters params{threads_x, threads_y, threads_z,
      |                    ^~~~~~
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.cpp:15:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/tools/llvm-gpu-loader/llvm-gpu-loader.h:16:
In file included from /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/shared/rpc_server.h:12:
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/RPC/rpc_server.h:329:25: error: use of undeclared identifier 'fwrite_unlocked'
  329 |       buffer->data[0] = fwrite_unlocked(strs[id], 1, sizes[id], files[id]);
      |                         ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/RPC/rpc_server.h:327:15: note: while substituting into a lambda expression here
  327 |     port.send([&](rpc::Buffer *buffer, uint32_t id) {
      |               ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/cmake/Modules/../../libc/src/__support/RPC/rpc_server.h:533:22: note: in instantiation of function template specialization '__llvm_libc_common_utils::internal::handle_port_impl<1U>' requested here
  533 |     return internal::handle_port_impl<1>(port);
      |                      ^

```

</details>

https://github.com/llvm/llvm-project/pull/132096