[PATCH] D110603: [GlobalISel][IRTranslator] Emit trap intrinsic for unreachable

Mon Oct 4 13:42:17 PDT 2021

leonardchan added a comment.

I believe we're also hitting a similar error at https://luci-milo.appspot.com/p/fuchsia/builders/toolchain.ci/clang-mac-x64/b8834277085583722465:

  [504/509] Building CXX object libcxx/src/CMakeFiles/cxx_static.dir/filesystem/operations.cpp.o
  FAILED: libcxx/src/CMakeFiles/cxx_static.dir/filesystem/operations.cpp.o 
  /opt/s/w/ir/x/w/staging/llvm_install/bin/clang++ --target=arm64-apple-darwin --sysroot=/opt/s/w/ir/cache/macos_sdk/XCode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.0.sdk -DNDEBUG -D_LIBCPP_BUILDING_LIBRARY -D_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS -D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Ilibcxx/include/c++build -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wstring-conversion -Wmisleading-indentation -fdiagnostics-color -isysroot /opt/s/w/ir/cache/macos_sdk/XCode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.0.sdk -mmacosx-version-min=10.15 -fPIC -DLIBCXX_BUILDING_LIBCXXABI -faligned-allocation -nostdinc++ -fvisibility-inlines-hidden -fvisibility=hidden -Wall -Wextra -W -Wwrite-strings -Wno-unused-parameter -Wno-long-long -Werror=return-type -Wextra-semi -Wundef -Wno-user-defined-literals -Wno-covered-switch-default -Wno-suggest-override -Wno-error -I/opt/s/w/ir/x/w/staging/runtimes_build/include/c++/v1 -std=c++20 -MD -MT libcxx/src/CMakeFiles/cxx_static.dir/filesystem/operations.cpp.o -MF libcxx/src/CMakeFiles/cxx_static.dir/filesystem/operations.cpp.o.d -o libcxx/src/CMakeFiles/cxx_static.dir/filesystem/operations.cpp.o -c /opt/s/w/ir/x/w/llvm-project/libcxx/src/filesystem/operations.cpp
  unknown operand type
  UNREACHABLE executed at llvm/lib/Target/AArch64/AArch64MCInstLower.cpp:262!
  clang-14: error: clang frontend command failed with exit code 134 (use -v to see invocation)
  Fuchsia clang version 14.0.0 (https://llvm.googlesource.com/a/llvm-project e8477045f6d8229a60f6d10c984ee84a3b05efdf)
  Target: arm64-apple-darwin
  Thread model: posix
  InstalledDir: /opt/s/w/ir/x/w/staging/llvm_install/bin
  clang-14: note: diagnostic msg: 

Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D110603