If I build for simulator x86_64 then I am not getting *Assertion failed:
((PtrWord & ~PointerBitMask) == 0 && "Pointer is not sufficiently aligned")
*and able to view the llvm-ir output.
so what's wrong with i386 target, any ideas where I have to look for this.
Thanks
Ramakrishna
On Wed, Mar 23, 2016 at 11:28 PM, Ramakrishna Mallireddy <
ramakrishna.ma...@gmail.com> wrote:
> Finally I am able to run the swift front end [swift 2.2 released
> yesterday].
>
> When running in simulator with arch i386 and debug configuration, I hit
> with
>
> *Assertion failed: ((PtrWord & ~PointerBitMask) == 0 && "Pointer is not
> sufficiently aligned"), function setPointerAndInt, file
> /Users/chinnari/Tutorials/libswift/llvm/include/llvm/ADT/PointerIntPair.h,
> line 114.*
>
> my input source.swift file contains a import UIKit & a let statement.
>
> Can someone help me on this please.
>
> The complete back trace is below:
>
> (lldb) bt all
>
> * thread #1: tid = 0xc5054, 0x0e6fa69a
> libsystem_kernel.dylib`__pthread_kill + 10, queue =
> 'com.apple.main-thread', stop reason = signal SIGABRT
>
> frame #0: 0x0e6fa69a libsystem_kernel.dylib`__pthread_kill + 10
>
> frame #1: 0x0e6c5634 libsystem_pthread.dylib`pthread_kill + 101
>
> * frame #2: 0x03d45350 LLVMTest`::raise(sig=6) + 32 at Signals.inc:422
>
> frame #3: 0x03d4543a LLVMTest`::abort() + 26 at Signals.inc:439
>
> frame #4: 0x03d45412 LLVMTest`::__assert_rtn(func="setPointerAndInt",
> file="/Users/chinnari/Tutorials/libswift/llvm/include/llvm/ADT/PointerIntPair.h",
> line=114, expr="(PtrWord & ~PointerBitMask) == 0 && \"Pointer is not
> sufficiently aligned\"") + 178 at Signals.inc:435
>
> frame #5: 0x04af3cf5 LLVMTest`llvm::PointerIntPair<void*, 1u, bool,
> llvm::PointerUnionUIntTraits<swift::ProtocolDecl*,
> swift::ProtocolConformance*> >::setPointerAndInt(this=0x7e5e0bd0,
> PtrVal=0x7e5e0b34, IntVal=true) + 165 at PointerIntPair.h:113
>
> frame #6: 0x045578d4 LLVMTest`llvm::PointerUnion<swift::ProtocolDecl*,
> swift::ProtocolConformance*>::operator=(this=0x7e5e0bd0, RHS=0xbff4f800) +
> 68 at PointerUnion.h:172
>
> frame #7: 0x0442dbdf
> LLVMTest`swift::ConformanceLookupTable::registerProtocolConformance(this=0x7e5e08f0,
> conformance=0x7e5e0b34) + 591 at ConformanceLookupTable.cpp:870
>
> frame #8: 0x04557435
> LLVMTest`swift::NominalTypeDecl::registerProtocolConformance(this=0x7e435bf0,
> conformance=0x7e5e0b34) + 53 at ProtocolConformance.cpp:631
>
> frame #9: 0x04ed4ec6
> LLVMTest`swift::ModuleFile::readNormalConformance(this=0x7c3c6200,
> conformanceID=(Value = 311)) + 1158 at Deserialization.cpp:578
>
> frame #10: 0x04ed4436
> LLVMTest`swift::ModuleFile::readConformance(this=0x7c3c6200,
> Cursor=0x7c3c623c) + 1910 at Deserialization.cpp:501
>
> frame #11: 0x04edd176
> LLVMTest`swift::ModuleFile::loadAllConformances(this=0x7c3c6200,
> D=0x7e435bf0, contextData=2533274845394404, conformances=0xbff4ff80) + 630
> at Deserialization.cpp:4006
>
> frame #12: 0x0442c102 LLVMTest`void
> swift::ConformanceLookupTable::forEachInStage<swift::ConformanceLookupTable::updateLookupTable(swift::NominalTypeDecl*,
> swift::ConformanceLookupTable::ConformanceStage,
> swift::LazyResolver*)::$_2,
> swift::ConformanceLookupTable::updateLookupTable(swift::NominalTypeDecl*,
> swift::ConformanceLookupTable::ConformanceStage,
> swift::LazyResolver*)::$_3>(this=0x7e5e08f0, stage=RecordedExplicit,
> nominal=0x7e435bf0, resolver=0xbff5a2a8,
> nominalFunc=swift::ConformanceLookupTable::(anonymous class) @ 0xbff4ffe0,
> extensionFunc=swift::ConformanceLookupTable::(anonymous class) @
> 0xbff4ffe8)::$_2,
> swift::ConformanceLookupTable::updateLookupTable(swift::NominalTypeDecl*,
> swift::ConformanceLookupTable::ConformanceStage,
> swift::LazyResolver*)::$_3) + 386 at ConformanceLookupTable.cpp:156
>
> frame #13: 0x0442b985
> LLVMTest`swift::ConformanceLookupTable::updateLookupTable(this=0x7e5e08f0,
> nominal=0x7e435bf0, stage=RecordedExplicit, resolver=0xbff5a2a8) + 229 at
> ConformanceLookupTable.cpp:274
>
> frame #14: 0x0442b9b6
> LLVMTest`swift::ConformanceLookupTable::updateLookupTable(this=0x7e5e08f0,
> nominal=0x7e435bf0, stage=Inherited, resolver=0xbff5a2a8) + 278 at
> ConformanceLookupTable.cpp:294
>
> frame #15: 0x0442f598
> LLVMTest`swift::ConformanceLookupTable::lookupConformance(this=0x7e5e08f0,
> module=0x7c387340, nominal=0x7e435bf0, protocol=0x7bbb9830,
> resolver=0xbff5a2a8, conformances=0xbff50560) + 104 at
> ConformanceLookupTable.cpp:887
>
> frame #16: 0x0455726d
> LLVMTest`swift::NominalTypeDecl::lookupConformance(this=0x7e435bf0,
> module=0x7c387340, protocol=0x7bbb9830, conformances=0xbff50560) const +
> 125 at ProtocolConformance.cpp:593
>
> frame #17: 0x044fdc26
> LLVMTest`swift::ModuleDecl::lookupConformance(this=0x7c387340, type=Type @
> 0xbff50694, protocol=0x7bbb9830, resolver=0xbff5a2a8) + 2166 at
> Module.cpp:886
>
> frame #18: 0x04deda3d
> LLVMTest`swift::TypeChecker::conformsToProtocol(this=0xbff5a2a8, T=Type @
> 0xbff50754, Proto=0x7bbb9830, DC=0x7bbbaf70, options=(Storage = 1),
> Conformance=0x00000000, ComplainLoc=SourceLoc @ 0xbff50768) + 205 at
> TypeCheckProtocol.cpp:4053
>
> frame #19: 0x04c76964
> LLVMTest`swift::constraints::ConstraintSystem::simplifyConformsToConstraint(this=0xbff59540,
> type=Type @ 0xbff508d4, protocol=0x7bbb9830, kind=ConformsTo,
> locator=ConstraintLocatorBuilder @ 0xbff50950, flags=0) + 676 at
> CSSimplify.cpp:2283
>
> frame #20: 0x04c7ccb0
> LLVMTest`swift::constraints::ConstraintSystem::simplifyConformsToConstraint(this=0xbff59540,
> type=Type @ 0xbff50984, protocol=Type @ 0xbff50988, kind=ConformsTo,
> locator=ConstraintLocatorBuilder @ 0xbff50be8, flags=0) + 224 at
> CSSimplify.cpp:2250
>
> frame #21: 0x04c83ce6
> LLVMTest`swift::constraints::ConstraintSystem::simplifyConstraint(this=0xbff59540,
> constraint=0x7b9d8698) + 2038 at CSSimplify.cpp:4393
>
> frame #22: 0x04c8d28f
> LLVMTest`swift::constraints::ConstraintSystem::simplify(this=0xbff59540,
> ContinueAfterFailures=false) + 239 at CSSolver.cpp:331
>
> frame #23: 0x04c90517
> LLVMTest`swift::constraints::ConstraintSystem::solveRec(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 119 at
> CSSolver.cpp:1215
>
> frame #24: 0x04c94f52 LLVMTest`tryTypeVariableBindings(cs=0xbff59540,
> depth=4, typeVar=0x7b9d8670, bindings=ArrayRef<(anonymous
> namespace)::PotentialBinding> @ 0xbff51ddc, solutions=0xbff58df0,
> allowFreeTypeVariables=Disallow)::PotentialBinding>,
> llvm::SmallVectorImpl<swift::constraints::Solution>&,
> swift::FreeTypeVariableBinding) + 1602 at CSSolver.cpp:1078
>
> frame #25: 0x04c92d1d
> LLVMTest`swift::constraints::ConstraintSystem::solveSimplified(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 909 at
> CSSolver.cpp:1551
>
> frame #26: 0x04c9080b
> LLVMTest`swift::constraints::ConstraintSystem::solveRec(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 875 at
> CSSolver.cpp:1256
>
> frame #27: 0x04c94f52 LLVMTest`tryTypeVariableBindings(cs=0xbff59540,
> depth=3, typeVar=0x7b9d8700, bindings=ArrayRef<(anonymous
> namespace)::PotentialBinding> @ 0xbff5344c, solutions=0xbff58df0,
> allowFreeTypeVariables=Disallow)::PotentialBinding>,
> llvm::SmallVectorImpl<swift::constraints::Solution>&,
> swift::FreeTypeVariableBinding) + 1602 at CSSolver.cpp:1078
>
> frame #28: 0x04c92d1d
> LLVMTest`swift::constraints::ConstraintSystem::solveSimplified(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 909 at
> CSSolver.cpp:1551
>
> frame #29: 0x04c9080b
> LLVMTest`swift::constraints::ConstraintSystem::solveRec(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 875 at
> CSSolver.cpp:1256
>
> frame #30: 0x04c94f52 LLVMTest`tryTypeVariableBindings(cs=0xbff59540,
> depth=2, typeVar=0x7b9d8858, bindings=ArrayRef<(anonymous
> namespace)::PotentialBinding> @ 0xbff54abc, solutions=0xbff58df0,
> allowFreeTypeVariables=Disallow)::PotentialBinding>,
> llvm::SmallVectorImpl<swift::constraints::Solution>&,
> swift::FreeTypeVariableBinding) + 1602 at CSSolver.cpp:1078
>
> frame #31: 0x04c92d1d
> LLVMTest`swift::constraints::ConstraintSystem::solveSimplified(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 909 at
> CSSolver.cpp:1551
>
> frame #32: 0x04c9080b
> LLVMTest`swift::constraints::ConstraintSystem::solveRec(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 875 at
> CSSolver.cpp:1256
>
> frame #33: 0x04c94f52 LLVMTest`tryTypeVariableBindings(cs=0xbff59540,
> depth=1, typeVar=0x7b9d8610, bindings=ArrayRef<(anonymous
> namespace)::PotentialBinding> @ 0xbff5612c, solutions=0xbff58df0,
> allowFreeTypeVariables=Disallow)::PotentialBinding>,
> llvm::SmallVectorImpl<swift::constraints::Solution>&,
> swift::FreeTypeVariableBinding) + 1602 at CSSolver.cpp:1078
>
> frame #34: 0x04c92d1d
> LLVMTest`swift::constraints::ConstraintSystem::solveSimplified(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 909 at
> CSSolver.cpp:1551
>
> frame #35: 0x04c9080b
> LLVMTest`swift::constraints::ConstraintSystem::solveRec(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 875 at
> CSSolver.cpp:1256
>
> frame #36: 0x04c94f52 LLVMTest`tryTypeVariableBindings(cs=0xbff59540,
> depth=0, typeVar=0x7b9d87f0, bindings=ArrayRef<(anonymous
> namespace)::PotentialBinding> @ 0xbff5779c, solutions=0xbff58df0,
> allowFreeTypeVariables=Disallow)::PotentialBinding>,
> llvm::SmallVectorImpl<swift::constraints::Solution>&,
> swift::FreeTypeVariableBinding) + 1602 at CSSolver.cpp:1078
>
> frame #37: 0x04c92d1d
> LLVMTest`swift::constraints::ConstraintSystem::solveSimplified(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 909 at
> CSSolver.cpp:1551
>
> frame #38: 0x04c9080b
> LLVMTest`swift::constraints::ConstraintSystem::solveRec(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 875 at
> CSSolver.cpp:1256
>
> frame #39: 0x04c9011c
> LLVMTest`swift::constraints::ConstraintSystem::solve(this=0xbff59540,
> solutions=0xbff58df0, allowFreeTypeVariables=Disallow) + 268 at
> CSSolver.cpp:1193
>
> frame #40: 0x04d29d58
> LLVMTest`swift::TypeChecker::solveForExpression(this=0xbff5a2a8,
> expr=0xbff59c3c, dc=0x7bbbaf70, convertType=Type @ 0xbff58bfc,
> allowFreeTypeVariables=Disallow, listener=0xbff59bb8, cs=0xbff59540,
> viable=0xbff58df0, options=(Storage = 16)) + 808 at
> TypeCheckConstraints.cpp:1154
>
> frame #41: 0x04d2d22f
> LLVMTest`swift::TypeChecker::typeCheckExpression(this=0xbff5a2a8,
> expr=0xbff59c3c, dc=0x7bbbaf70, convertType=Type @ 0xbff59b3c,
> convertTypePurpose=CTP_Unused, options=(Storage = 16), listener=0xbff59bb8)
> + 1247 at TypeCheckConstraints.cpp:1304
>
> frame #42: 0x04d2f0ea
> LLVMTest`swift::TypeChecker::typeCheckBinding(this=0xbff5a2a8,
> pattern=0xbff59c40, initializer=0xbff59c3c, DC=0x7bbbaf70) + 442 at
> TypeCheckConstraints.cpp:1624
>
> frame #43: 0x04d2f3ad
> LLVMTest`swift::TypeChecker::typeCheckPatternBinding(this=0xbff5a2a8,
> PBD=0x7bbbb0c8, patternNumber=0) + 269 at TypeCheckConstraints.cpp:1674
>
> frame #44: 0x04d796c0
> LLVMTest`validatePatternBindingDecl(tc=0xbff5a2a8, binding=0x7bbbb0c8,
> entryNumber=0) + 1312 at TypeCheckDecl.cpp:1214
>
> frame #45: 0x04d844b7 LLVMTest`(anonymous
> namespace)::DeclChecker::visitPatternBindingDecl(this=0xbff59f50,
> PBD=0x7bbbb0c8) + 119 at TypeCheckDecl.cpp:2842
>
> frame #46: 0x04d83340 LLVMTest`swift::ASTVisitor<(anonymous
> namespace)::DeclChecker, void, void, void, void, void,
> void>::visit(this=0xbff59f50, D=0x7bbbb0c8) + 144 at DeclNodes.def:91
>
> frame #47: 0x04d76519 LLVMTest`(anonymous
> namespace)::DeclChecker::visit(this=0xbff59f50, decl=0x7bbbb0c8) + 41 at
> TypeCheckDecl.cpp:2672
>
> frame #48: 0x04d76473
> LLVMTest`swift::TypeChecker::typeCheckDecl(this=0xbff5a2a8, D=0x7bbbb0c8,
> isFirstPass=false) + 195 at TypeCheckDecl.cpp:5561
>
> frame #49: 0x04e96466 LLVMTest`(anonymous
> namespace)::StmtChecker::visitBraceStmt(this=0xbff5a138, BS=0x7bbbb0f0) +
> 1222 at TypeCheckStmt.cpp:1078
>
> frame #50: 0x04e95d1f LLVMTest`swift::ASTVisitor<(anonymous
> namespace)::StmtChecker, void, swift::Stmt*, void, void, void,
> void>::visit(this=0xbff5a138, S=0x7bbbb0f0) + 95 at StmtNodes.def:43
>
> frame #51: 0x04e9517b LLVMTest`bool (anonymous
> namespace)::StmtChecker::typeCheckStmt<swift::BraceStmt>(this=0xbff5a138,
> S=0xbff5a16c) + 43 at TypeCheckStmt.cpp:325
>
> frame #52: 0x04e950d2
> LLVMTest`swift::TypeChecker::typeCheckTopLevelCodeDecl(this=0xbff5a2a8,
> TLCD=0x7bbbaf50) + 114 at TypeCheckStmt.cpp:1405
>
> frame #53: 0x04cf62e9
> LLVMTest`swift::performTypeChecking(SF=0x7bbbad80, TLC=0xbff5a958,
> Options=(Storage = 1), StartElem=0) + 1177 at TypeChecker.cpp:585
>
> frame #54: 0x001287c9
> LLVMTest`swift::CompilerInstance::performSema(this=0xbff5d6d0) + 12249 at
> Frontend.cpp:464
>
> frame #55: 0x000e8f91 LLVMTest`performCompile(Instance=0xbff5d6d0,
> Invocation=0xbff5d368, Args=ArrayRef<const char *> @ 0xbff5c458,
> ReturnValue=0xbff5c6ec) + 3825 at frontend_main.cpp:666
>
> frame #56: 0x000e782d LLVMTest`frontend_main(Args=ArrayRef<const char
> *> @ 0xbff5deb0, Argv0="swift", MainAddr=0x0574b020) + 11773 at
> frontend_main.cpp:1118
>
> frame #57: 0x000a215e LLVMTest`+[LibSwiftWrapper
> runSwiftFrontend:](self=LibSwiftWrapper, _cmd="runSwiftFrontend:",
> options=unable to read data) + 174 at libSwiftWrapper.mm:23
>
> frame #58: 0x001374c0 LLVMTest`LLVMTest.ViewController.viewDidLoad
> (self=0x7b0208e0)() -> () + 400 at ViewController.swift:17
>
> frame #59: 0x001376b2 LLVMTest`@objc
> LLVMTest.ViewController.viewDidLoad (LLVMTest.ViewController)() -> () + 34
> at ViewController.swift:0
>
> frame #60: 0x0ca062ae UIKit`-[UIViewController
> _sendViewDidLoadWithAppearanceProxyObjectTaggingEnabled] + 44
>
> frame #61: 0x0ca0adce UIKit`-[UIViewController loadViewIfRequired] +
> 1384
>
> frame #62: 0x0ca0b1ed UIKit`-[UIViewController view] + 35
>
> frame #63: 0x0c8b8f94 UIKit`-[UIWindow
> addRootViewControllerViewIfPossible] + 69
>
> frame #64: 0x0c8b96b1 UIKit`-[UIWindow _setHidden:forced:] + 304
>
> frame #65: 0x0c8b9a67 UIKit`-[UIWindow _orderFrontWithoutMakingKey] +
> 49
>
> frame #66: 0x0c8cd118 UIKit`-[UIWindow makeKeyAndVisible] + 80
>
> frame #67: 0x0c8356e7 UIKit`-[UIApplication
> _callInitializationDelegatesForMainScene:transitionContext:] + 4190
>
> frame #68: 0x0c83ccd6 UIKit`-[UIApplication
> _runWithMainScene:transitionContext:completion:] + 1989
>
> frame #69: 0x0c861ee5 UIKit`__84-[UIApplication
> _handleApplicationActivationWithScene:transitionContext:completion:]_block_invoke3218
> + 68
>
> frame #70: 0x0c839966 UIKit`-[UIApplication
> workspaceDidEndTransaction:] + 163
>
> frame #71: 0x0f5fec76 FrontBoardServices`__37-[FBSWorkspace
> clientEndTransaction:]_block_invoke_2 + 71
>
> frame #72: 0x0f5fe74d FrontBoardServices`__40-[FBSWorkspace
> _performDelegateCallOut:]_block_invoke + 54
>
> frame #73: 0x0f61c173 FrontBoardServices`-[FBSSerialQueue
> _performNext] + 184
>
> frame #74: 0x0f61c5aa FrontBoardServices`-[FBSSerialQueue
> _performNextFromRunLoopSource] + 52
>
> frame #75: 0x0f61b8a6
> FrontBoardServices`FBSSerialQueueRunLoopSourceHandler + 33
>
> frame #76: 0x0c3c96ff
> CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ +
> 15
>
> frame #77: 0x0c3bf38b CoreFoundation`__CFRunLoopDoSources0 + 523
>
> frame #78: 0x0c3be7a8 CoreFoundation`__CFRunLoopRun + 1032
>
> frame #79: 0x0c3be0e6 CoreFoundation`CFRunLoopRunSpecific + 470
>
> frame #80: 0x0c3bdefb CoreFoundation`CFRunLoopRunInMode + 123
>
> frame #81: 0x0c839206 UIKit`-[UIApplication _run] + 540
>
> frame #82: 0x0c83ebfa UIKit`UIApplicationMain + 160
>
> frame #83: 0x0013711c LLVMTest`main + 140 at AppDelegate.swift:12
>
> frame #84: 0x0e3c6a21 libdyld.dylib`start + 1
>
>
> thread #2: tid = 0xc5088, 0x0e6fb8ce libsystem_kernel.dylib`kevent64 +
> 10, queue = 'com.apple.libdispatch-manager'
>
> frame #0: 0x0e6fb8ce libsystem_kernel.dylib`kevent64 + 10
>
> frame #1: 0x0e38a048 libdispatch.dylib`_dispatch_mgr_invoke + 257
>
> frame #2: 0x0e389d98 libdispatch.dylib`_dispatch_mgr_thread + 60
>
> (lldb)
>
>
> Thanks
>
> Ramakrishna
>
> On Tue, Mar 22, 2016 at 12:59 AM, Ramakrishna Mallireddy <
> ramakrishna.ma...@gmail.com> wrote:
>
>> After resolving the opengles conflict with llvm code base, I am stuck at
>> undefined symbol error,
>>
>> Undefined symbols for architecture i386:
>>
>> "(anonymous namespace)::*LoweredValue*::*$_6*::*$_7*::*~$_7()*",
>> referenced from:
>>
>> (anonymous namespace)::*LoweredValue*::*LoweredValue*(*swift*::
>> *irgen*::*Explosion*&) in libSwift.a(*IRGenSIL*.o)
>>
>> ld: symbol(s) not found for architecture i386
>>
>> I am not getting this error, when I link the swift libs generated by the
>> build script that comes with the swift source.
>>
>> This error is generated, only when I included all the swift front-end
>> source[except Immediate.a source ] in my project and compiled it as a
>> single static library and linked it to my app.
>>
>> I believe the following code (*IRGenSIL.cpp*) is the one that mentioned
>> in the error:
>>
>> *LoweredValue(Explosion &e)*
>>
>> * : kind(Kind::Explosion), explosion{{}} {*
>>
>> * auto Elts = e.claimAll();*
>>
>> * explosion.values.append(Elts.begin(), Elts.end());*
>>
>> * }*
>>
>> Thanks
>>
>> Ramakrishna
>>
>> On Fri, Mar 18, 2016 at 3:17 AM, Joe Groff <jgr...@apple.com> wrote:
>>
>>>
>>> > On Mar 17, 2016, at 2:22 PM, Ramakrishna Mallireddy <
>>> ramakrishna.ma...@gmail.com> wrote:
>>> >
>>> > The libLLVMContainer.dylib is actually from opengl.framework.
>>> > On iOS the lib may be loaded by opengles.framework and I am not using
>>> any opengl myself, ios may be loading it by default.
>>> >
>>> > I have compiled llvm core & support libs along with my llvmtest code,
>>> Even then the conflict remains.
>>> > How to I get around this.
>>>
>>> You should statically link in any LLVM libraries you need, ensuring you
>>> link the versions built as part of your swiftc build. LLVM libraries are
>>> not ABI-stable, and any LLVM libraries that might happen to be distributed
>>> in the OS are not for use outside the OS.
>>>
>>> -Joe
>>>
>>>
>>
>
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