Attachment: Download

Issue Description:

main.swift

**import** Foundation

**class** A {

**private** **var** arr: [**Any**] = []

**@objc**

**init**()
Unknown macro: \{         **let** i32 = Int32(arr.count)     }
}

Makfile

SDKPATH = xcrun --show-sdk-path -sdk iphonesimulator
TARGET = 'x86_64-apple-ios14.0-simulator'

build_main:
swift -frontend -c main.swift -Xcc -working-directory -Xcc $(CURDIR) -whole-module-optimization -O -enable-objc-interop -emit-module -emit-objc-header -sdk $(SDKPATH) -module-name Main -target-sdk-version 14.0 -I$(CURDIR)/Enum -F$(CURDIR)/Enum -framework Enum -swift-version 5 -target $(TARGET) -o main.o

> make build_main

Will show bellow.

Stack dump:
0. Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c main.swift -Xcc -working-directory -Xcc /Users/qihongye/Documents/BLOG/swift/BUILD_SEGFAULT -whole-module-optimization -O -enable-objc-interop -emit-module -emit-objc-header -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.0.sdk -module-name Main -target-sdk-version 14.0 -I/Users/qihongye/Documents/BLOG/swift/BUILD_SEGFAULT/Enum -F/Users/qihongye/Documents/BLOG/swift/BUILD_SEGFAULT/Enum -framework Enum -swift-version 5 -target x86_64-apple-ios14.0-simulator -o main.o

1. Apple Swift version 5.3 (swiftlang-1200.0.29.2 clang-1200.0.30.1)
2. Running pass 'Function Pass Manager' on module 'main.o'.
3. Running pass 'X86 Assembly Printer' on function '@"$s4Main1ACACycfc"'
   0 swift 0x000000010ff5d865 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
   1 swift 0x000000010ff5c865 llvm::sys::RunSignalHandlers() + 85
   2 swift 0x000000010ff5de1f SignalHandler(int) + 111
   3 libsystem_platform.dylib 0x00007fff6ed1f5fd _sigtramp + 29
   4 libsystem_platform.dylib 0x00000001121a5380 _sigtramp + 18446603343255592352
   5 swift 0x000000010d1db78c (anonymous namespace)::X86MCCodeEmitter::encodeInstruction(llvm::MCInst const&, llvm::raw_ostream&, llvm::SmallVectorImplllvm::MCFixup&, llvm::MCSubtargetInfo const&) const + 204
   6 swift 0x000000010fcd6df0 (anonymous namespace)::MCMachOStreamer::EmitInstToData(llvm::MCInst const&, llvm::MCSubtargetInfo const&) + 192
   7 swift 0x000000010fcdeabe llvm::MCObjectStreamer::EmitInstruction(llvm::MCInst const&, llvm::MCSubtargetInfo const&) + 302
   8 swift 0x000000010d15e8a3 llvm::X86AsmPrinter::EmitAndCountInstruction(llvm::MCInst&) + 51
   9 swift 0x000000010d15f7b4 llvm::X86AsmPrinter::EmitInstruction(llvm::MachineInstr const*) + 2836
   10 swift 0x000000010d59f56e llvm::AsmPrinter::EmitFunctionBody() + 6878
   11 swift 0x000000010cef4ae3 llvm::X86AsmPrinter::runOnMachineFunction(llvm::MachineFunction&) + 163
   12 swift 0x000000010e1da942 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 194
   13 swift 0x000000010fe29ced llvm::FPPassManager::runOnFunction(llvm::Function&) + 925
   14 swift 0x000000010fe2a753 llvm::FPPassManager::runOnModule(llvm::Module&) + 67
   15 swift 0x000000010fe2ac1d llvm::legacy::PassManagerImpl::run(llvm::Module&) + 1005
   16 swift 0x000000010be83300 swift::performLLVM(swift::IRGenOptions const&, swift::DiagnosticEngine&, llvm::sys::SmartMutex, llvm::GlobalVariable, llvm::Module*, llvm::TargetMachine*, swift::version::Version const&, llvm::StringRef, swift::UnifiedStatsReporter*) + 6640
   17 swift 0x000000010bad50c0 performCompileStepsPostSILGen(swift::CompilerInstance&, swift::CompilerInvocation const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_deleteswift::SILModule >, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 3904
   18 swift 0x000000010bac4ae0 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 21152
   19 swift 0x000000010ba45c07 main + 1255
   20 libdyld.dylib 0x00007fff6eb26cc9 start + 1
   21 libdyld.dylib 0x000000000000001d start + 18446603338658976597
   make: *** [build_main_o] Segmentation fault: 11