-driver-time-compilation flag in Xcode 13.3.1

Unfortunately they are not. This feature is meant primarily for compiler developers.

Thank you so much for chiming in. Tried installing the latest 5.7 snapshot and building with it and I get:

ld: file not found: /Users/<myusername>/Library/Developer/Toolchains/swift-5.7-DEVELOPMENT-SNAPSHOT-2022-04-25-a.xctoolchain/usr/lib/clang/13.0.0/lib/darwin/libclang_rt.profile_ios.a

I can see libclang_rt.ios.a and libclang_rt.profile_osx.a but no libclang_rt.profile_ios.a. Is there a build option I need to change?

Found some results on getting past my error, but now getting an abort trap: 6 using the 5.7 development toolchain while attempting to compile seemingly related to PassKit:

1.	Apple Swift version 5.7-dev (LLVM a177fc627109410, Swift 31967c6df177cce)
2.	Compiling with the current language version
3.	Contents of /var/folders/c4/2tgwqpxj08l1rjyf_plfbywh0000gn/T/TemporaryDirectory.KeFUBF/sources-1:
    < list of all my files in the project failing >
4.	While evaluating request ASTLoweringRequest(Lowering AST to SIL for module PassKit)
5.	While silgen emitNativeToForeignThunk SIL function "@$sSo27PKStoredValuePassPropertiesC0C3KitE9isBlockedSbvgTo".
 for getter for isBlocked (at /Applications/Xcode_13.3.1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS15.4.sdk/usr/lib/swift/PassKit.swiftmodule/arm64-apple-ios.swiftinterface:10:51)
6.	While verifying SIL function "@$sSo27PKStoredValuePassPropertiesC0C3KitE9isBlockedSbvgTo".
 for getter for isBlocked (at /Applications/Xcode_13.3.1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS15.4.sdk/usr/lib/swift/PassKit.swiftmodule/arm64-apple-ios.swiftinterface:10:51)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend           0x0000000104f4dbf4 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1  swift-frontend           0x0000000104f4ce54 llvm::sys::RunSignalHandlers() + 128
2  swift-frontend           0x0000000104f4e258 SignalHandler(int) + 304
3  libsystem_platform.dylib 0x0000000198e914c4 _sigtramp + 56
4  libsystem_pthread.dylib  0x0000000198e79ee0 pthread_kill + 288
5  libsystem_c.dylib        0x0000000198db4340 abort + 168
6  swift-frontend           0x0000000100c13e6c (anonymous namespace)::SILVerifier::_require(bool, llvm::Twine const&, std::__1::function<void ()> const&) + 1444
7  swift-frontend           0x0000000100c1484c (anonymous namespace)::SILVerifier::visitSILFunction(swift::SILFunction*) + 892
8  swift-frontend           0x0000000100c10708 swift::SILFunction::verify(bool) const + 76
9  swift-frontend           0x0000000100f9e9c4 swift::Lowering::SILGenModule::postEmitFunction(swift::SILDeclRef, swift::SILFunction*) + 228
10 swift-frontend           0x0000000100f9c788 swift::Lowering::SILGenModule::emitFunctionDefinition(swift::SILDeclRef, swift::SILFunction*) + 1132
11 swift-frontend           0x0000000101054770 swift::Lowering::SILGenModule::emitNativeToForeignThunk(swift::SILDeclRef) + 100
12 swift-frontend           0x0000000100fa09c0 swift::Lowering::SILGenModule::emitObjCPropertyMethodThunks(swift::AbstractStorageDecl*) + 196
13 swift-frontend           0x000000010105ce84 SILGenExtension::visitVarDecl(swift::VarDecl*) + 88
14 swift-frontend           0x0000000101059864 SILGenExtension::emitExtension(swift::ExtensionDecl*) + 84
15 swift-frontend           0x0000000101059804 swift::Lowering::SILGenModule::visitExtensionDecl(swift::ExtensionDecl*) + 24
16 swift-frontend           0x0000000100fa1a44 swift::ASTLoweringRequest::evaluate(swift::Evaluator&, swift::ASTLoweringDescriptor) const + 1792
17 swift-frontend           0x000000010104cf68 swift::SimpleRequest<swift::ASTLoweringRequest, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> > (swift::ASTLoweringDescriptor), (swift::RequestFlags)9>::evaluateRequest(swift::ASTLoweringRequest const&, swift::Evaluator&) + 156
18 swift-frontend           0x0000000100fa5a04 llvm::Expected<swift::ASTLoweringRequest::OutputType> swift::Evaluator::getResultUncached<swift::ASTLoweringRequest>(swift::ASTLoweringRequest const&) + 408
19 swift-frontend           0x0000000100fa2578 swift::performASTLowering(swift::ModuleDecl*, swift::Lowering::TypeConverter&, swift::SILOptions const&) + 144
20 swift-frontend           0x0000000100adbf94 std::__1::error_code llvm::function_ref<std::__1::error_code (swift::SubCompilerInstanceInfo&)>::callback_fn<swift::ModuleInterfaceBuilder::buildSwiftModuleInternal(llvm::StringRef, bool, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >*, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >)::$_1::operator()() const::'lambda'(swift::SubCompilerInstanceInfo&)>(long, swift::SubCompilerInstanceInfo&) + 1108
21 swift-frontend           0x0000000100ae485c swift::InterfaceSubContextDelegateImpl::runInSubCompilerInstance(llvm::StringRef, llvm::StringRef, llvm::StringRef, swift::SourceLoc, llvm::function_ref<std::__1::error_code (swift::SubCompilerInstanceInfo&)>) + 2868
22 swift-frontend           0x0000000100adbb14 void llvm::function_ref<void ()>::callback_fn<swift::ModuleInterfaceBuilder::buildSwiftModuleInternal(llvm::StringRef, bool, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >*, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >)::$_1>(long) + 120
23 swift-frontend           0x0000000104eb06ec llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) + 252
24 swift-frontend           0x0000000104eb0810 RunSafelyOnThread_Dispatch(void*) + 52
25 swift-frontend           0x0000000104eb08e4 void* llvm::thread::ThreadProxy<std::__1::tuple<void (*)(void*), (anonymous namespace)::RunSafelyOnThreadInfo*> >(void*) + 24
26 libsystem_pthread.dylib  0x0000000198e7a26c _pthread_start + 148
27 libsystem_pthread.dylib  0x0000000198e7508c thread_start + 8
error: Abort trap: 6 

Not sure I'm gonna get this much further at this point, so maybe I'll just be waiting for Xcode 13.4 :smiley: