ninja: Entering directory `out/gn'
[1/397] COPY ../../libcxxabi/include/cxxabi.h include/c++/v1/cxxabi.h
[2/397] COPY ../../libcxxabi/include/__cxxabi_config.h include/c++/v1/__cxxabi_config.h
[3/397] ACTION //libcxx/include:copy_headers(//llvm/utils/gn/build/toolchain:unix)
[4/397] CXX obj/clang/lib/CodeGen/TargetBuiltins/CodeGen.AVR.o
FAILED: obj/clang/lib/CodeGen/TargetBuiltins/CodeGen.AVR.o 
../../../chrome/src/third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/clang/lib/CodeGen/TargetBuiltins/CodeGen.AVR.o.d -o obj/clang/lib/CodeGen/TargetBuiltins/CodeGen.AVR.o -c ../../clang/lib/CodeGen/TargetBuiltins/AVR.cpp  -I../../clang/lib/CodeGen -I../../llvm/include -Igen/llvm/include -I../../clang/include -Igen/clang/include -Igen/clang/include/clang/Basic -I. -Igen/clang/include/clang/AST -Igen/llvm/include/llvm/Frontend/OpenMP -Igen/llvm/include/llvm/Analysis -Igen/llvm/include/llvm/IR -O3 -fdiagnostics-color -Wall -Wextra -Wno-unused-parameter -Wdelete-non-virtual-dtor -Wstring-conversion -no-canonical-prefixes -Werror=date-time -fdebug-compilation-dir=. --sysroot=../../sysroot -Wpoison-system-directories -fPIC -Wcovered-switch-default -fno-strict-aliasing -std=c++17 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti
../../clang/lib/CodeGen/TargetBuiltins/AVR.cpp:16:10: fatal error: 'llvm/IR/IntrinsicsAVR.h' file not found
   16 | #include "llvm/IR/IntrinsicsAVR.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.