[compiler-rt] [llvm] [SPARC] Allow overaligned `alloca`s (PR #107223)

Sun Nov 3 08:18:15 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 `compiler-rt,llvm` at step 12 "build-stage2-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/168/builds/5084

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

```
Step 12 (build-stage2-unified-tree) failure: build (failure)
...
381.619 [1321/1154/3847] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/XCore.cpp.o
381.651 [1320/1154/3848] Building CXX object lib/Target/MSP430/CMakeFiles/LLVMMSP430CodeGen.dir/MSP430TargetMachine.cpp.o
381.679 [1319/1154/3849] Building CXX object lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcISelDAGToDAG.cpp.o
381.709 [1318/1154/3850] Building CXX object lib/Target/NVPTX/CMakeFiles/LLVMNVPTXCodeGen.dir/NVPTXImageOptimizer.cpp.o
381.739 [1317/1154/3851] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/FileManager.cpp.o
381.830 [1316/1154/3852] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/SourceMgrAdapter.cpp.o
381.938 [1315/1154/3853] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/DarwinSDKInfo.cpp.o
381.973 [1314/1154/3854] Building CXX object lib/Target/Hexagon/CMakeFiles/LLVMHexagonCodeGen.dir/HexagonGenMemAbsolute.cpp.o
382.000 [1313/1154/3855] Building CXX object lib/Target/NVPTX/CMakeFiles/LLVMNVPTXCodeGen.dir/NVPTXCtorDtorLowering.cpp.o
382.033 [1312/1154/3856] Building CXX object lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcFrameLowering.cpp.o
FAILED: lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcFrameLowering.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 -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/lib/Target/Sparc -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Target/Sparc -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 -fvisibility=hidden  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcFrameLowering.cpp.o -MF lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcFrameLowering.cpp.o.d -o lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcFrameLowering.cpp.o -c /home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Target/Sparc/SparcFrameLowering.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-lld-multistage-test/ppc64le-lld-multistage-test/llvm-project/llvm/lib/Target/Sparc/SparcFrameLowering.cpp:226:29: error: unused variable 'RegInfo' [-Werror,-Wunused-variable]
  226 |   const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();
      |                             ^~~~~~~
1 error generated.
382.149 [1312/1153/3857] Linking CXX static library lib/libLLVMXCoreDisassembler.a
382.210 [1312/1152/3858] Building CXX object lib/Target/Mips/Disassembler/CMakeFiles/LLVMMipsDisassembler.dir/MipsDisassembler.cpp.o
382.301 [1312/1151/3859] Building CXX object lib/Target/Hexagon/CMakeFiles/LLVMHexagonCodeGen.dir/RDFCopy.cpp.o
382.320 [1312/1150/3860] Building CXX object lib/Target/NVPTX/CMakeFiles/LLVMNVPTXCodeGen.dir/NVPTXProxyRegErasure.cpp.o
382.341 [1312/1149/3861] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/SystemZ.cpp.o
382.380 [1312/1148/3862] Building CXX object lib/Target/VE/MCTargetDesc/CMakeFiles/LLVMVEDesc.dir/VEMCCodeEmitter.cpp.o
382.434 [1312/1147/3863] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/HeaderSearch.cpp.o
382.461 [1312/1146/3864] Building CXX object lib/Target/LoongArch/CMakeFiles/LLVMLoongArchCodeGen.dir/LoongArchAsmPrinter.cpp.o
382.491 [1312/1145/3865] Building CXX object lib/Target/Mips/CMakeFiles/LLVMMipsCodeGen.dir/Mips16RegisterInfo.cpp.o
382.492 [1312/1144/3866] Building CXX object lib/Target/WebAssembly/CMakeFiles/LLVMWebAssemblyCodeGen.dir/WebAssemblyLowerRefTypesIntPtrConv.cpp.o
382.740 [1312/1143/3867] Building CXX object tools/clang/tools/diagtool/CMakeFiles/diagtool.dir/diagtool_main.cpp.o
382.771 [1312/1142/3868] Building CXX object tools/clang/lib/CodeGen/CMakeFiles/obj.clangCodeGen.dir/MacroPPCallbacks.cpp.o
382.791 [1312/1141/3869] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/BPF.cpp.o
382.811 [1312/1140/3870] Building CXX object lib/Target/AVR/Disassembler/CMakeFiles/LLVMAVRDisassembler.dir/AVRDisassembler.cpp.o
382.812 [1312/1139/3871] Building CXX object lib/Target/WebAssembly/CMakeFiles/LLVMWebAssemblyCodeGen.dir/WebAssemblySetP2AlignOperands.cpp.o
382.828 [1312/1138/3872] Building CXX object lib/Target/Mips/CMakeFiles/LLVMMipsCodeGen.dir/MipsMulMulBugPass.cpp.o
383.021 [1312/1137/3873] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreFrameToArgsOffsetElim.cpp.o
383.201 [1312/1136/3874] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/Preprocessor.cpp.o
383.261 [1312/1135/3875] Building CXX object tools/clang/lib/Lex/CMakeFiles/obj.clangLex.dir/PPMacroExpansion.cpp.o
383.351 [1312/1134/3876] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/AVR.cpp.o
383.390 [1312/1133/3877] Building CXX object lib/Target/Sparc/CMakeFiles/LLVMSparcCodeGen.dir/SparcTargetMachine.cpp.o
383.411 [1312/1132/3878] Building CXX object lib/Target/XCore/CMakeFiles/LLVMXCoreCodeGen.dir/XCoreTargetObjectFile.cpp.o
383.561 [1312/1131/3879] Building CXX object tools/clang/lib/StaticAnalyzer/Core/CMakeFiles/obj.clangStaticAnalyzerCore.dir/Environment.cpp.o
383.895 [1312/1130/3880] Building CXX object lib/Target/AVR/CMakeFiles/LLVMAVRCodeGen.dir/AVRAsmPrinter.cpp.o
383.911 [1312/1129/3881] Building CXX object tools/clang/lib/Tooling/CMakeFiles/obj.clangTooling.dir/Refactoring.cpp.o
383.915 [1312/1128/3882] Building CXX object tools/clang/lib/StaticAnalyzer/Checkers/CMakeFiles/obj.clangStaticAnalyzerCheckers.dir/Iterator.cpp.o
383.990 [1312/1127/3883] Building CXX object tools/clang/tools/clang-installapi/CMakeFiles/clang-installapi.dir/clang-installapi-driver.cpp.o
384.030 [1312/1126/3884] Building CXX object lib/Target/MSP430/CMakeFiles/LLVMMSP430CodeGen.dir/MSP430ISelDAGToDAG.cpp.o
384.060 [1312/1125/3885] Building CXX object lib/Target/Hexagon/CMakeFiles/LLVMHexagonCodeGen.dir/HexagonMachineScheduler.cpp.o
384.081 [1312/1124/3886] Building CXX object tools/clang/lib/Basic/CMakeFiles/obj.clangBasic.dir/Targets/AMDGPU.cpp.o
384.156 [1312/1123/3887] Building CXX object tools/clang/tools/amdgpu-arch/CMakeFiles/amdgpu-arch.dir/AMDGPUArchByHIP.cpp.o
384.166 [1312/1122/3888] Building CXX object lib/Target/BPF/CMakeFiles/LLVMBPFCodeGen.dir/BPFSubtarget.cpp.o
384.270 [1312/1121/3889] Building CXX object lib/Target/BPF/CMakeFiles/LLVMBPFCodeGen.dir/BPFMISimplifyPatchable.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/107223