practicalswift
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544efbe9ff
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[swiftc (97 vs. 5282)] Add crasher in swift::TypeBase::getCanonicalType(...)
Add test case for crash triggered in `swift::TypeBase::getCanonicalType(...)`.
Current number of unresolved compiler crashers: 97 (5282 resolved)
Assertion failure in [`include/swift/AST/Type.h (line 288)`](https://github.com/apple/swift/blob/master/include/swift/AST/Type.h#L288):
```
Assertion `isActuallyCanonicalOrNull() && "Forming a CanType out of a non-canonical type!"' failed.
When executing: swift::CanType::CanType(swift::TypeBase *)
```
Assertion context:
```
static ClassDecl *getClassBoundImpl(CanType type);
public:
explicit CanType(TypeBase *P = 0) : Type(P) {
assert(isActuallyCanonicalOrNull() &&
"Forming a CanType out of a non-canonical type!");
}
explicit CanType(Type T) : Type(T) {
assert(isActuallyCanonicalOrNull() &&
"Forming a CanType out of a non-canonical type!");
}
```
Stack trace:
```
0 0x00000000034c7488 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x34c7488)
1 0x00000000034c7bc6 SignalHandler(int) (/path/to/swift/bin/swift+0x34c7bc6)
2 0x00007f6bcbec73e0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x113e0)
3 0x00007f6bca5f5428 gsignal /build/glibc-Qz8a69/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0
4 0x00007f6bca5f702a abort /build/glibc-Qz8a69/glibc-2.23/stdlib/abort.c:91:0
5 0x000000000346333d llvm::llvm_unreachable_internal(char const*, char const*, unsigned int) (/path/to/swift/bin/swift+0x346333d)
6 0x0000000000e46fb9 (/path/to/swift/bin/swift+0xe46fb9)
7 0x0000000000d3bdf9 (anonymous namespace)::FindCapturedVars::checkType(swift::Type, swift::SourceLoc) (/path/to/swift/bin/swift+0xd3bdf9)
8 0x0000000000d3c05a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0xd3c05a)
9 0x0000000000dcd3e5 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) (/path/to/swift/bin/swift+0xdcd3e5)
10 0x0000000000dcf425 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0xdcf425)
11 0x0000000000dcf000 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0xdcf000)
12 0x0000000000dcba7e swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0xdcba7e)
13 0x0000000000d3ad94 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0xd3ad94)
14 0x0000000000d3d6c7 (anonymous namespace)::FindCapturedVars::propagateCaptures(swift::AnyFunctionRef, swift::SourceLoc) (/path/to/swift/bin/swift+0xd3d6c7)
15 0x0000000000d3c44a (anonymous namespace)::FindCapturedVars::walkToExprPre(swift::Expr*) (/path/to/swift/bin/swift+0xd3c44a)
16 0x0000000000dcc5e6 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) (/path/to/swift/bin/swift+0xdcc5e6)
17 0x0000000000dcec1e (anonymous namespace)::Traversal::visitApplyExpr(swift::ApplyExpr*) (/path/to/swift/bin/swift+0xdcec1e)
18 0x0000000000dcef34 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) (/path/to/swift/bin/swift+0xdcef34)
19 0x0000000000dcba7e swift::Stmt::walk(swift::ASTWalker&) (/path/to/swift/bin/swift+0xdcba7e)
20 0x0000000000d3ad94 swift::TypeChecker::computeCaptures(swift::AnyFunctionRef) (/path/to/swift/bin/swift+0xd3ad94)
21 0x0000000000c67f7b typeCheckFunctionsAndExternalDecls(swift::TypeChecker&) (/path/to/swift/bin/swift+0xc67f7b)
22 0x0000000000c68689 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int) (/path/to/swift/bin/swift+0xc68689)
23 0x0000000000987046 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0x987046)
24 0x000000000047c446 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x47c446)
25 0x000000000043ace7 main (/path/to/swift/bin/swift+0x43ace7)
26 0x00007f6bca5e0830 __libc_start_main /build/glibc-Qz8a69/glibc-2.23/csu/../csu/libc-start.c:325:0
27 0x0000000000438129 _start (/path/to/swift/bin/swift+0x438129)
```
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2016-12-11 01:00:19 +01:00 |
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