ninja: Entering directory `out/gn'
[1/368] CXX obj/llvm/lib/Transforms/Utils/Utils.SimplifyCFG.o
FAILED: obj/llvm/lib/Transforms/Utils/Utils.SimplifyCFG.o 
../../chromeclang/bin/clang++ -MMD -MF obj/llvm/lib/Transforms/Utils/Utils.SimplifyCFG.o.d -o obj/llvm/lib/Transforms/Utils/Utils.SimplifyCFG.o -c ../../llvm/lib/Transforms/Utils/SimplifyCFG.cpp  -I../../llvm/include -Igen/llvm/include -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -Igen/llvm/include/llvm/IR -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 -std=c++17 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti
../../llvm/lib/Transforms/Utils/SimplifyCFG.cpp:2503:3: error: reference to 'LockstepReverseIterator' is ambiguous
  LockstepReverseIterator<true> LRI(UnconditionalPreds);
  ^
../../llvm/include/llvm/Transforms/Utils/LockstepReverseIterator.h:41:7: note: candidate found by name lookup is 'llvm::LockstepReverseIterator'
class LockstepReverseIterator
      ^
../../llvm/lib/Transforms/Utils/SimplifyCFG.cpp:1787:7: note: candidate found by name lookup is '(anonymous namespace)::LockstepReverseIterator'
class LockstepReverseIterator {
      ^
../../llvm/lib/Transforms/Utils/SimplifyCFG.cpp:2533:44: error: reference to 'LockstepReverseIterator' is ambiguous
    auto ProfitableToSinkInstruction = [&](LockstepReverseIterator<true> &LRI) {
                                           ^
../../llvm/include/llvm/Transforms/Utils/LockstepReverseIterator.h:41:7: note: candidate found by name lookup is 'llvm::LockstepReverseIterator'
class LockstepReverseIterator
      ^
../../llvm/lib/Transforms/Utils/SimplifyCFG.cpp:1787:7: note: candidate found by name lookup is '(anonymous namespace)::LockstepReverseIterator'
class LockstepReverseIterator {
      ^
2 errors generated.
[2/368] CXX obj/llvm/lib/Transforms/IPO/IPO.MemProfContextDisambiguation.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.