invalid cast assertion #10454
Description
| Bugzilla Link | 10082 |
| Resolution | FIXED |
| Resolved on | Jun 08, 2011 17:10 |
| Version | trunk |
| OS | Linux |
| Reporter | LLVM Bugzilla Contributor |
| CC | @efriedma-quic |
Extended Description
clang++ -O2 a.cc -c
fails with an invalid cast assertion. This may or may not be related to bug 8769 (I discovered this one when I finally removed the workaround for 8769).
template struct array {
float _M_instance[3] attribute((aligned));
const float& operator[](int __n) const {
return _M_instance[__n];
}
};
struct PointC3 {
array base;
const float & x() const {
return base[0];
}
};
struct Point_3 : public PointC3 {
};
struct Equal_3 {
bool operator()(const PointC3 &p, const PointC3 &q) const {
return p.x() == q.x();
}
};
Equal_3 equal_3_object();
inline bool operator==(const Point_3& p, const Point_3& q) {
return equal_3_object()(p, q);
}
Point_3 f();
int main() {
f() == f();
}
clang: /data/repos/llvm/lib/VMCore/Instructions.cpp:2079: static llvm::CastInst* llvm::CastInst::Create(llvm::Instruction::CastOps, llvm::Value*, const llvm::Type*, const llvm::Twine&, llvm::Instruction*): Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed.
0 clang 0x0000000001ab601f
1 clang 0x0000000001ab6b5a
2 libpthread.so.0 0x00007ff490785020
3 libc.so.6 0x00007ff48fa7f3d5 gsignal + 53
4 libc.so.6 0x00007ff48fa82650 abort + 384
5 libc.so.6 0x00007ff48fa78581 __assert_fail + 241
6 clang 0x00000000019bfcad
7 clang 0x00000000007fca66 llvm::IRBuilder<true, llvm::ConstantFolder, llvm::IRBuilderDefaultInserter >::CreateCast(llvm::Instruction::CastOps, llvm::Value*, llvm::Type const*, llvm::Twine const&) + 118
8 clang 0x0000000001779276
9 clang 0x0000000001779c84
10 clang 0x0000000001779b4c
11 clang 0x0000000001779a01
12 clang 0x000000000177e339
13 clang 0x0000000001780f49
14 clang 0x00000000019e296f llvm::FPPassManager::runOnFunction(llvm::Function&) + 655
15 clang 0x0000000001862727
16 clang 0x0000000001864aee
17 clang 0x00000000019e2467 llvm::MPPassManager::runOnModule(llvm::Module&) + 551
18 clang 0x00000000019e25cb llvm::PassManagerImpl::run(llvm::Module&) + 187
19 clang 0x00000000007cf0f7 clang::EmitBackendOutput(clang::Diagnostic&, clang::CodeGenOptions const&, clang::TargetOptions const&, llvm::Module*, clang::BackendAction, llvm::raw_ostream*) + 2967
20 clang 0x00000000007cce8b clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 251
21 clang 0x000000000092362f clang::ParseAST(clang::Sema&, bool) + 351
22 clang 0x00000000007cba94 clang::CodeGenAction::ExecuteAction() + 68
23 clang 0x00000000006ca233 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 371
24 clang 0x00000000006a306a clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1290
25 clang 0x000000000069783b cc1_main(char const**, char const**, char const*, void*) + 779
26 clang 0x00000000006a1f43 main + 7667
27 libc.so.6 0x00007ff48fa6bead __libc_start_main + 253
28 clang 0x0000000000697349
Stack dump:
0. Program arguments: /tmp/clang/inst/bin/clang -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name a.cc -mrelocation-model static -mdisable-fp-elim -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-linker-version 2.21.51.20110523 -momit-leaf-frame-pointer -coverage-file a.o -resource-dir /tmp/clang/inst/bin/../lib/clang/3.0 -O2 -fdeprecated-macro -ferror-limit 19 -fmessage-length 0 -fcxx-exceptions -fexceptions -fgnu-runtime -fdiagnostics-show-option -o a.o -x c++ a.cc
-
<eof> parser at end of file -
Per-module optimization passes -
Running pass 'CallGraph Pass Manager' on module 'a.cc'. -
Running pass 'Scalar Replacement of Aggregates (SSAUp)' on function '@main'
clang: error: unable to execute command: Aborted
clang: error: clang frontend command failed due to signal 2 (use -v to see invocation)