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Assertion failed: (!From.isInvalid() && "Implicit field reference cannot fail") #15120

Open Quuxplusone opened 11 years ago

Quuxplusone commented 11 years ago
Bugzilla Link PR15120
Status NEW
Importance P normal
Reported by Joshua Moerman (lakseru@gmail.com)
Reported on 2013-01-30 04:48:03 -0800
Last modified on 2013-03-15 13:06:05 -0700
Version trunk
Hardware PC MacOS X
CC llvm-bugs@lists.llvm.org, rafael@espindo.la
Fixed by commit(s)
Attachments main-lFe7mm.cpp (5847 bytes, application/octet-stream)
Blocks
Blocked by
See also 
Created attachment 9947
Source that makes clang crash.

I got this while compiling some production code (which in retrospect contained
c++ errors), so the original source was very big. I tried slimming it down with
delta, but it got unreadable (nevertheless I attached that source).

Version of clang:
$ ~/Documents/Code/build/Debug+Asserts/bin/clang -v
clang version 3.3 (trunk 170991)
Target: x86_64-apple-darwin11.4.2
Thread model: posix

Backtrace:
joshua@n040005:~/Documents/Code/ClangBug$ ./main-lFe7mm.sh
main-lFe7mm.cpp:15:55: fatal error: expected class name
 template <class _Tp> struct __is_void       : public false_type {
                                                      ^
Assertion failed: (!From.isInvalid() && "Implicit field reference cannot
fail"), function DefineImplicitCopyAssignment, file
/Users/joshua/Documents/Code/llvm/tools/clang/lib/Sema/SemaDeclCXX.cpp, line
8503.
0  clang             0x00000001060fd56e _ZL15PrintStackTracePv + 46
1  clang             0x00000001060fdb19 _ZL13SignalHandleri + 297
2  libsystem_c.dylib 0x00007fff9209dcfa _sigtramp + 26
3  libsystem_c.dylib 0x00000400635fc4d8 _sigtramp + 18446607737779775480
4  clang             0x00000001060fd83b raise + 27
5  clang             0x00000001060fd8f2 abort + 18
6  clang             0x00000001060fd8d1 __assert_rtn + 129
7  clang             0x00000001040522c4
clang::Sema::DefineImplicitCopyAssignment(clang::SourceLocation,
clang::CXXMethodDecl*) + 4068
8  clang             0x00000001040deb78
clang::Sema::MarkFunctionReferenced(clang::SourceLocation,
clang::FunctionDecl*) + 1064
9  clang             0x000000010423d836
clang::Sema::CreateOverloadedBinOp(clang::SourceLocation, unsigned int,
clang::UnresolvedSetImpl const&, clang::Expr*, clang::Expr*) + 2518
10 clang             0x00000001040f2f2a
_ZL20BuildOverloadedBinOpRN5clang4SemaEPNS_5ScopeENS_14SourceLocationENS_18BinaryOperatorKindEPNS_4ExprES7_
+ 266
11 clang             0x00000001040f2ddd clang::Sema::BuildBinOp(clang::Scope*,
clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) +
1213
12 clang             0x0000000104369bc9 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::RebuildBinaryOperator(clang::SourceLocation,
clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) + 73
13 clang             0x0000000104356882 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformBinaryOperator(clang::BinaryOperator*)
+ 466
14 clang             0x000000010434c8df clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformExpr(clang::Expr*) + 447
15 clang             0x000000010434c3c3 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 1715
16 clang             0x000000010436320f clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*,
bool) + 159
17 clang             0x000000010436b26a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*)
+ 42
18 clang             0x000000010434becf clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 447
19 clang             0x000000010436be9a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformIfStmt(clang::IfStmt*) + 586
20 clang             0x000000010434bfef clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 735
21 clang             0x000000010436320f clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*,
bool) + 159
22 clang             0x000000010436b26a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*)
+ 42
23 clang             0x000000010434becf clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 447
24 clang             0x000000010436e1aa clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformWhileStmt(clang::WhileStmt*) + 554
25 clang             0x000000010434c392 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 1666
26 clang             0x000000010436320f clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*,
bool) + 159
27 clang             0x000000010436b26a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*)
+ 42
28 clang             0x000000010434becf clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 447
29 clang             0x000000010436be9a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformIfStmt(clang::IfStmt*) + 586
30 clang             0x000000010434bfef clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 735
31 clang             0x000000010436320f clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*,
bool) + 159
32 clang             0x000000010436b26a clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformCompoundStmt(clang::CompoundStmt*)
+ 42
33 clang             0x000000010434becf clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformStmt(clang::Stmt*) + 447
34 clang             0x000000010434bce5 clang::Sema::SubstStmt(clang::Stmt*,
clang::MultiLevelTemplateArgumentList const&) + 133
35 clang             0x000000010438f4c7
clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool) + 2167
36 clang             0x00000001043905d2
clang::Sema::PerformPendingInstantiations(bool) + 738
37 clang             0x0000000103f3472d
clang::Sema::ActOnEndOfTranslationUnit() + 589
38 clang             0x0000000103ec67f2
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&) + 338
39 clang             0x0000000103e542e3 clang::ParseAST(clang::Sema&, bool,
bool) + 531
40 clang             0x0000000103adbd98
clang::ASTFrontendAction::ExecuteAction() + 312
41 clang             0x0000000103ddabfb clang::CodeGenAction::ExecuteAction() +
1243
42 clang             0x0000000103adb99a clang::FrontendAction::Execute() + 186
43 clang             0x0000000103aa1fdf
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 863
44 clang             0x0000000103a1913d
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1005
45 clang             0x0000000103a05a58 cc1_main(char const**, char const**,
char const*, void*) + 760
46 clang             0x0000000103a11f99 main + 473
47 clang             0x0000000103a05734 start + 52
48 clang             0x0000000000000047 start + 18446744069353744711
Stack dump:
0.  Program arguments:
/Users/joshua/Documents/Code/build/Debug+Asserts/bin/clang -cc1 -triple x86_64-
apple-macosx10.7.0 -emit-obj -disable-free -disable-llvm-verifier -main-file-
name main.cpp -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -masm-
verbose -munwind-tables -target-cpu core2 -target-linker-version 134.9 -g -
nostdinc++ -D NDEBUG -stdlib=libc++ -O3 -Weverything -Wno-newline-eof -Wno-
variadic-macros -Wno-padded -Wno-vla -Wno-c++98-compat-pedantic -Wno-float-
equal -Wno-pedantic -Wno-weak-vtables -Wno-disabled-macro-expansion -Wno-
missing-prototypes -Wno-missing-noreturn -Wno-global-constructors -Wno-exit-
time-destructors -Wno-cast-align -Wno-unreachable-code -Wno-packed -Wno-
conversion -Wno-switch-enum -Wno-extra-semi -Wno-undef -std=c++11 -fdeprecated-
macro -ferror-limit 19 -fmessage-length 133 -stack-protector 1 -mstackrealign -
fblocks -fobjc-runtime=macosx-10.7.0 -fobjc-dispatch-method=mixed -fobjc-
default-synthesize-properties -fencode-extended-block-signature -fcxx-
exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -backend-
option -vectorize-loops -Wfatal-errors -x c++ main-lFe7mm.cpp
1.  <eof> parser at end of file
2.  main-lFe7mm.cpp:96:71: instantiating function definition 'remove_if'
./main-lFe7mm.sh: line 1: 94392 Illegal instruction: 4
/Users/joshua/Documents/Code/build/Debug+Asserts/bin/clang -cc1 -triple x86_64-
apple-macosx10.7.0 -emit-obj -disable-free -disable-llvm-verifier -main-file-
name main.cpp -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -masm-
verbose -munwind-tables -target-cpu core2 -target-linker-version 134.9 -g -
nostdinc++ -D "NDEBUG" -stdlib=libc++ -O3 -Weverything -Wno-newline-eof -Wno-
variadic-macros -Wno-padded -Wno-vla -Wno-c++98-compat-pedantic -Wno-float-
equal -Wno-pedantic -Wno-weak-vtables -Wno-disabled-macro-expansion -Wno-
missing-prototypes -Wno-missing-noreturn -Wno-global-constructors -Wno-exit-
time-destructors -Wno-cast-align -Wno-unreachable-code -Wno-packed -Wno-
conversion -Wno-switch-enum -Wno-extra-semi -Wno-undef -std=c++11 -fdeprecated-
macro -ferror-limit 19 -fmessage-length 133 -stack-protector 1 -mstackrealign -
fblocks -fobjc-runtime=macosx-10.7.0 -fobjc-dispatch-method=mixed -fobjc-
default-synthesize-properties -fencode-extended-block-signature -fcxx-
exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -backend-
option -vectorize-loops -Wfatal-errors -x c++ main-lFe7mm.cpp

It also crashes in the Release build of this clang.
Crash was gone after fixing our code, so it may be not so relevant...
Quuxplusone commented 11 years ago

Attached main-lFe7mm.cpp (5847 bytes, application/octet-stream): Source that makes clang crash.