ninja: Entering directory `out/gn'
[1/378] CXX obj/llvm/tools/bugpoint/bugpoint.BugDriver.o
[2/378] CXX obj/llvm/lib/XRay/XRay.InstrumentationMap.o
[3/378] AR lib/libLLVMXRay.a
[4/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanUtils.o
[5/378] LINK obj/llvm/unittests/XRay/XRayTests
[6/378] 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.
[7/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanVerifier.o
[8/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanSLP.o
[9/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanUnroll.o
[10/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanRecipes.o
[11/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VectorCombine.o
[12/378] CXX obj/llvm/lib/Transforms/Vectorize/Vectorize.VPlanTransforms.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.