[swiftc (48 vs. 5451)] Add crasher in swift::TypeBase::getCanonicalType(...)

practicalswift · practicalswift · commit f129e4b15beb · 2017-02-08T09:56:45.000+01:00
Add test case for crash triggered in `swift::TypeBase::getCanonicalType(...)`. Current number of unresolved compiler crashers: 48 (5451 resolved) /cc @lattner - just wanted to let you know that this crasher caused an assertion failure for the assertion `Result && "Case not implemented!"` added on 2011-03-22 by you in commit fd2bf74 :-) Assertion failure in [`lib/AST/Type.cpp (line 1304)`](https://github.com/apple/swift/blob/f7253bf7a586d04a8d1cf16595c8718d90d9b703/lib/AST/Type.cpp#L1304): ``` Assertion `Result && "Case not implemented!"' failed. When executing: swift::CanType swift::TypeBase::getCanonicalType() ``` Assertion context: ```c++ } } // Cache the canonical type for future queries. assert(Result && "Case not implemented!"); CanonicalType = Result; return CanType(Result); } ``` Stack trace: ``` 0 0x00000000038e9028 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x38e9028) 1 0x00000000038e9766 SignalHandler(int) (/path/to/swift/bin/swift+0x38e9766) 2 0x00007f52162ad3e0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x113e0) 3 0x00007f5214c13428 gsignal /build/glibc-Qz8a69/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0 4 0x00007f5214c1502a abort /build/glibc-Qz8a69/glibc-2.23/stdlib/abort.c:91:0 5 0x00007f5214c0bbd7 __assert_fail_base /build/glibc-Qz8a69/glibc-2.23/assert/assert.c:92:0 6 0x00007f5214c0bc82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) 7 0x000000000143f648 swift::TypeBase::getCanonicalType() (/path/to/swift/bin/swift+0x143f648) 8 0x000000000128f9e0 (anonymous namespace)::FindCapturedVars::checkType(swift::Type, swift::SourceLoc) (/path/to/swift/bin/swift+0x128f9e0) 9 0x000000000128fe4a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x128fe4a) 10 0x00000000013c0a7e swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) (/path/to/swift/bin/swift+0x13c0a7e) 11 0x00000000013bf84b swift::Expr::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf84b) 12 0x0000000001290e60 (anonymous namespace)::FindCapturedVars::walkToDeclPre(swift::Decl*) (/path/to/swift/bin/swift+0x1290e60) 13 0x00000000013bfd44 (anonymous namespace)::Traversal::doIt(swift::Decl*) (/path/to/swift/bin/swift+0x13bfd44) 14 0x00000000013c2ee8 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2ee8) 15 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 16 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 17 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 18 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 19 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 20 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 21 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 22 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 23 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 24 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 25 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 26 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 27 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 28 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 29 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 30 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 31 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 32 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 33 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 34 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 35 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 36 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 37 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 38 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 39 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 40 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 41 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 42 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 43 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 44 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 45 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 46 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 47 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 48 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 49 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 50 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 51 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 52 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 53 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 54 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 55 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 56 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 57 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 58 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 59 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 60 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 61 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 62 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 63 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 64 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 65 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 66 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 67 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 68 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 69 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 70 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 71 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 72 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 73 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 74 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 75 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 76 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 77 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 78 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 79 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 80 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 81 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 82 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 83 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 84 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 85 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 86 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 87 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 88 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 89 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 90 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 91 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 92 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 93 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 94 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 95 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 96 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 97 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 98 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 99 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 100 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 101 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 102 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 103 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 104 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 105 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 106 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 107 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 108 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 109 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 110 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 111 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 112 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 113 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 114 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 115 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 116 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 117 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 118 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 119 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 120 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 121 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 122 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 123 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 124 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 125 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 126 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 127 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 128 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 129 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 130 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 131 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 132 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 133 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 134 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 135 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 136 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 137 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 138 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 139 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 140 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 141 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 142 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 143 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 144 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 145 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 146 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 147 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 148 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 149 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 150 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 151 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 152 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 153 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 154 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 155 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 156 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 157 0x00000000013c3349 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c3349) 158 0x00000000013c2f50 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2f50) 159 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 160 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 161 0x0000000001291577 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0x1291577) 162 0x000000000129024a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0x129024a) 163 0x00000000013c2e59 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0x13c2e59) 164 0x00000000013bf8ce swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0x13bf8ce) 165 0x000000000128ebe1 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0x128ebe1) 166 0x00000000011c42fb typeCheckFunctionsAndExternalDecls(swift::TypeChecker&) (/path/to/swift/bin/swift+0x11c42fb) 167 0x00000000011c4ad5 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int) (/path/to/swift/bin/swift+0x11c4ad5) 168 0x0000000000f186e6 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0xf186e6) 169 0x00000000004a51d6 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x4a51d6) 170 0x0000000000464337 main (/path/to/swift/bin/swift+0x464337) 171 0x00007f5214bfe830 __libc_start_main /build/glibc-Qz8a69/glibc-2.23/csu/../csu/libc-start.c:325:0 172 0x00000000004619d9 _start (/path/to/swift/bin/swift+0x4619d9) ```
diff --git a/validation-test/compiler_crashers/28686-swift-typebase-getcanonicaltype.swift b/validation-test/compiler_crashers/28686-swift-typebase-getcanonicaltype.swift
@@ -0,0 +1,13 @@
+// This source file is part of the Swift.org open source project
+// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+
+// REQUIRES: deterministic-behavior
+// RUN: not --crash %target-swift-frontend %s -emit-ir
+protocol A.{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{let f&(a=a?Int){{{{{{{{{{{{{{{{{{{{{{{{{{{(_
+}
+}func b(UInt=1 + 1 + 1 + 1 as?Int){{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{(_{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{
+{{{{{{{{{{{{{{{{{{{{{{{{
