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

Wed Dec 18 05:13:48 PST 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `ppc64le-lld-multistage-test` running on `ppc64le-lld-multistage-test` while building `llvm` at step 12 "build-stage2-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/168/builds/6723

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

```
Step 12 (build-stage2-unified-tree) failure: build (failure)
...
226.583 [1283/1154/3932] Building CXX object tools/clang/lib/Index/CMakeFiles/obj.clangIndex.dir/IndexSymbol.cpp.o
226.611 [1282/1154/3933] Building CXX object tools/clang/lib/AST/CMakeFiles/obj.clangAST.dir/ASTConsumer.cpp.o
226.643 [1281/1154/3934] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/SystemZ.cpp.o
226.712 [1280/1154/3935] Building RISCVGenInstrInfo.inc...
226.743 [1279/1154/3936] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreSubtarget.cpp.o
226.772 [1278/1154/3937] Linking CXX static library lib/libLLVMLanaiAsmParser.a
226.853 [1277/1154/3938] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/AVR.cpp.o
226.893 [1276/1154/3939] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/NVPTX.cpp.o
226.933 [1275/1154/3940] Building CXX object lib/Target/NVPTX/CMakeFiles/LLVMNVPTXCodeGen.dir/NVVMIntrRange.cpp.o
227.024 [1274/1154/3941] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/LLVMExegesis.dir/SerialSnippetGenerator.cpp.o
FAILED: tools/llvm-exegesis/lib/CMakeFiles/LLVMExegesis.dir/SerialSnippetGenerator.cpp.o 
ccache /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/install/stage1/bin/clang++ -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-lld-multistage-test/ppc64le-lld-multistage-test/build/stage2/tools/llvm-exegesis/lib -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/tools/llvm-exegesis/lib -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/build/stage2/include -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/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/LLVMExegesis.dir/SerialSnippetGenerator.cpp.o -MF tools/llvm-exegesis/lib/CMakeFiles/LLVMExegesis.dir/SerialSnippetGenerator.cpp.o.d -o tools/llvm-exegesis/lib/CMakeFiles/LLVMExegesis.dir/SerialSnippetGenerator.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/tools/llvm-exegesis/lib/SerialSnippetGenerator.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/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.
227.042 [1274/1153/3942] Building CXX object lib/Target/X86/MCTargetDesc/CMakeFiles/LLVMX86Desc.dir/X86ShuffleDecode.cpp.o
227.096 [1274/1152/3943] Building CXX object lib/ExecutionEngine/JITLink/CMakeFiles/LLVMJITLink.dir/MachOLinkGraphBuilder.cpp.o
227.139 [1274/1151/3944] Building CXX object lib/Target/WebAssembly/CMakeFiles/LLVMWebAssemblyCodeGen.dir/WebAssemblyMCInstLower.cpp.o
227.163 [1274/1150/3945] Building CXX object lib/Target/Mips/MCTargetDesc/CMakeFiles/LLVMMipsDesc.dir/MipsMCTargetDesc.cpp.o
227.183 [1274/1149/3946] Building CXX object tools/clang/lib/Tooling/Inclusions/Stdlib/CMakeFiles/obj.clangToolingInclusionsStdlib.dir/StandardLibrary.cpp.o
227.283 [1274/1148/3947] Building CXX object lib/Target/BPF/CMakeFiles/LLVMBPFCodeGen.dir/BPFMIPeephole.cpp.o
227.332 [1274/1147/3948] Building CXX object lib/Target/SystemZ/Disassembler/CMakeFiles/LLVMSystemZDisassembler.dir/SystemZDisassembler.cpp.o
227.363 [1274/1146/3949] Building CXX object lib/Target/Hexagon/MCTargetDesc/CMakeFiles/LLVMHexagonDesc.dir/HexagonMCCodeEmitter.cpp.o
227.393 [1274/1145/3950] Building CXX object tools/clang/lib/Analysis/FlowSensitive/CMakeFiles/obj.clangAnalysisFlowSensitive.dir/RecordOps.cpp.o
227.423 [1274/1144/3951] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/TargetInfo.cpp.o
227.443 [1274/1143/3952] Building CXX object tools/clang/lib/StaticAnalyzer/Core/CMakeFiles/obj.clangStaticAnalyzerCore.dir/ConstraintManager.cpp.o
227.543 [1274/1142/3953] Building CXX object tools/clang/lib/Index/CMakeFiles/obj.clangIndex.dir/FileIndexRecord.cpp.o
227.673 [1274/1141/3954] Building CXX object lib/Target/Hexagon/CMakeFiles/LLVMHexagonCodeGen.dir/HexagonMachineScheduler.cpp.o
227.763 [1274/1140/3955] Building CXX object unittests/TableGen/CMakeFiles/TableGenTests.dir/AutomataTest.cpp.o
227.953 [1274/1139/3956] Building CXX object tools/llvm-rc/CMakeFiles/llvm-rc.dir/ResourceScriptParser.cpp.o
228.013 [1274/1138/3957] Building CXX object lib/Target/Mips/CMakeFiles/LLVMMipsCodeGen.dir/Mips16InstrInfo.cpp.o
228.032 [1274/1137/3958] Building CXX object lib/Target/Hexagon/Disassembler/CMakeFiles/LLVMHexagonDisassembler.dir/HexagonDisassembler.cpp.o
228.063 [1274/1136/3959] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/M68k.cpp.o
228.113 [1274/1135/3960] Building CXX object tools/clang/lib/InstallAPI/CMakeFiles/obj.clangInstallAPI.dir/DylibVerifier.cpp.o
228.293 [1274/1134/3961] Building CXX object lib/Target/MSP430/CMakeFiles/LLVMMSP430CodeGen.dir/MSP430ISelLowering.cpp.o
228.381 [1274/1133/3962] Building AArch64GenSubtargetInfo.inc...
228.451 [1274/1132/3963] Building CXX object lib/Target/PowerPC/CMakeFiles/LLVMPowerPCCodeGen.dir/GISel/PPCRegisterBankInfo.cpp.o
228.473 [1274/1131/3964] Building CXX object lib/Target/AVR/CMakeFiles/LLVMAVRCodeGen.dir/AVRExpandPseudoInsts.cpp.o
228.474 [1274/1130/3965] Building CXX object tools/clang/lib/Format/CMakeFiles/obj.clangFormat.dir/ContinuationIndenter.cpp.o
228.475 [1274/1129/3966] Building CXX object tools/clang/tools/diagtool/CMakeFiles/diagtool.dir/diagtool_main.cpp.o
228.478 [1274/1128/3967] Building CXX object lib/Target/X86/MCTargetDesc/CMakeFiles/LLVMX86Desc.dir/X86EncodingOptimization.cpp.o
228.493 [1274/1127/3968] Building CXX object tools/clang/lib/StaticAnalyzer/Core/CMakeFiles/obj.clangStaticAnalyzerCore.dir/Checker.cpp.o
228.593 [1274/1126/3969] Building CXX object lib/Target/VE/MCTargetDesc/CMakeFiles/LLVMVEDesc.dir/VEMCCodeEmitter.cpp.o
228.653 [1274/1125/3970] Building CXX object tools/clang/lib/Format/CMakeFiles/obj.clangFormat.dir/WhitespaceManager.cpp.o
228.656 [1274/1124/3971] Building CXX object tools/clang/lib/Serialization/CMakeFiles/obj.clangSerialization.dir/ModuleManager.cpp.o
228.733 [1274/1123/3972] Building CXX object lib/Target/PowerPC/CMakeFiles/LLVMPowerPCCodeGen.dir/PPCEarlyReturn.cpp.o
228.883 [1274/1122/3973] Building CXX object tools/clang/lib/StaticAnalyzer/Core/CMakeFiles/obj.clangStaticAnalyzerCore.dir/CheckerRegistryData.cpp.o
228.886 [1274/1121/3974] Building CXX object lib/Target/Hexagon/CMakeFiles/LLVMHexagonCodeGen.dir/HexagonNewValueJump.cpp.o

```

</details>

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