[llvm] [Exegesis][RISCV] Add RISCV support for llvm-exegesis (PR #89047)

Wed Dec 18 06:07:24 PST 2024

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/145/builds/3912

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
36.146 [2810/192/3338] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/EPCDebugObjectRegistrar.cpp.o
36.156 [2809/192/3339] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/EPCEHFrameRegistrar.cpp.o
36.159 [2808/192/3340] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/EPCGenericDylibManager.cpp.o
36.174 [2807/192/3341] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/EPCGenericJITLinkMemoryManager.cpp.o
36.180 [2806/192/3342] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/EPCGenericRTDyldMemoryManager.cpp.o
36.189 [2805/192/3343] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/IRCompileLayer.cpp.o
36.192 [2804/192/3344] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/IRTransformLayer.cpp.o
36.203 [2803/192/3345] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/JITTargetMachineBuilder.cpp.o
36.212 [2802/192/3346] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LoadLinkableFile.cpp.o
36.218 [2801/192/3347] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o
FAILED: tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o 
ccache /home/docker/llvm-external-buildbots/clang.17.0.6/bin/clang++ --gcc-toolchain=/gcc-toolchain/usr -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -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-clang-rhel-test/clang-ppc64le-rhel/build/tools/llvm-exegesis/lib -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/tools/llvm-exegesis/lib -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/build/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -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 -MD -MT tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o -MF tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o.d -o tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/tools/llvm-exegesis/lib/SerialSnippetGenerator.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-rhel-test/clang-ppc64le-rhel/llvm-project/llvm/tools/llvm-exegesis/lib/SerialSnippetGenerator.cpp:56:24: error: unused variable 'OtherInstrDesc' [-Werror,-Wunused-variable]
   56 |     const MCInstrDesc &OtherInstrDesc = OtherInstr.Description;
      |                        ^~~~~~~~~~~~~~
1 error generated.
36.220 [2801/191/3348] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/EPCIndirectionUtils.cpp.o
36.222 [2801/190/3349] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ExecutionUtils.cpp.o
36.224 [2801/189/3350] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ObjectFileInterface.cpp.o
36.226 [2801/188/3351] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/IndirectionUtils.cpp.o
36.228 [2801/187/3352] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/IRPartitionLayer.cpp.o
36.229 [2801/186/3353] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/JITLinkReentryTrampolines.cpp.o
36.231 [2801/185/3354] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LazyObjectLinkingLayer.cpp.o
36.233 [2801/184/3355] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LazyReexports.cpp.o
36.235 [2801/183/3356] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/Layer.cpp.o
36.236 [2801/182/3357] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LinkGraphLayer.cpp.o
36.238 [2801/181/3358] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LinkGraphLinkingLayer.cpp.o
36.240 [2801/180/3359] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LookupAndRecordAddrs.cpp.o
36.242 [2801/179/3360] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LLJIT.cpp.o
36.244 [2801/178/3361] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/MachO.cpp.o
36.246 [2801/177/3362] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/MachOPlatform.cpp.o
36.247 [2801/176/3363] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/MapperJITLinkMemoryManager.cpp.o
36.248 [2801/175/3364] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/MemoryMapper.cpp.o
36.250 [2801/174/3365] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ELFNixPlatform.cpp.o
36.251 [2801/173/3366] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/Mangling.cpp.o
36.253 [2801/172/3367] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ObjectLinkingLayer.cpp.o
36.254 [2801/171/3368] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ObjectTransformLayer.cpp.o
36.255 [2801/170/3369] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/OrcABISupport.cpp.o
36.257 [2801/169/3370] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/OrcV2CBindings.cpp.o
36.258 [2801/168/3371] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/RTDyldObjectLinkingLayer.cpp.o
36.260 [2801/167/3372] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/SectCreate.cpp.o
36.261 [2801/166/3373] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/SimpleRemoteEPC.cpp.o
36.262 [2801/165/3374] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/Speculation.cpp.o
36.263 [2801/164/3375] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/SpeculateAnalyses.cpp.o
36.264 [2801/163/3376] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ExecutorProcessControl.cpp.o
36.265 [2801/162/3377] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/TaskDispatch.cpp.o
36.266 [2801/161/3378] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/ThreadSafeModule.cpp.o
36.266 [2801/160/3379] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/RedirectionManager.cpp.o
36.267 [2801/159/3380] Building CXX object lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/JITLinkRedirectableSymbolManager.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/89047