ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/408] ACTION //bolt/tools/driver:llvm-boltdiff(//llvm/utils/gn/build/toolchain:unix)
[2/408] ACTION //bolt/tools/driver:perf2bolt(//llvm/utils/gn/build/toolchain:unix)
[3/408] LINK ./bin/llvm-rtdyld
[4/408] LINK ./bin/llvm-bolt-heatmap
[5/408] LINK obj/bolt/unittests/Core/CoreTests
[6/408] CXX obj/clang/lib/Basic/Basic.Attributes.o
FAILED: obj/clang/lib/Basic/Basic.Attributes.o 
../../chromeclang/bin/clang++ -MMD -MF obj/clang/lib/Basic/Basic.Attributes.o.d -o obj/clang/lib/Basic/Basic.Attributes.o -c ../../clang/lib/Basic/Attributes.cpp  -I../../clang/lib/Basic -I../../llvm/include -Igen/llvm/include -I../../clang/include -Igen/clang/include -Igen/clang/include/clang/Basic -Igen/llvm/include/llvm/Frontend/OpenMP -Igen/clang/lib/Basic -Igen/clang/include/clang/Sema -arch arm64 -isysroot ../../sysroot/MacOSX.sdk -mmacos-version-min=12 -mmacos-version-min=12 -O3 -fdiagnostics-color -Wall -Wextra -Wno-unused-parameter -Wdelete-non-virtual-dtor -Wstring-conversion -no-canonical-prefixes -Werror=date-time -isysroot ../../sysroot/MacOSX.sdk -Wpoison-system-directories -fPIC -Wcovered-switch-default -fno-strict-aliasing -std=c++17 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti
../../clang/lib/Basic/Attributes.cpp:234:10: fatal error: 'clang/Basic/AttributeSpellingList.inc' file not found
#include "clang/Basic/AttributeSpellingList.inc"
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[7/408] LINK ./bin/bugpoint
[8/408] LINK ./bin/llvm-reduce
[9/408] LINK obj/lld/unittests/AsLibELF/LLDAsLibELFTests
[10/408] LINK ./bin/lld
[11/408] LINK obj/lld/unittests/AsLibAll/LLDAsLibAllTests
[12/408] LINK ./bin/llvm-split
[13/408] LINK ./bin/llvm-lto2
[14/408] LINK ./bin/llvm-lto
[15/408] CXX obj/clang/lib/CodeGen/CodeGen.CGDecl.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.