Error due to unhandled {} type

[yjh0502]

Input:

#include <cstdio>
#include <list>
#include <string>

using namespace std;

int main(void) {
        list<string> string_list;
        string_list.push_back("hello");

        printf("%d\n", string_list.size());

        return 0;
}

Output:

intertyper.js:137: TypeError: Cannot read property 'text' of undefined
  while (tokens[openBrace].text != '{') openBrace --;

[kripken]

I don't get that error, with either clang or llvm_gcc. For me it compiles ok, but fails at runtime due to missing stdc++ stuff (__ZNSaIcEC1Ev).

Can you paste the .ll file that is generated for you?

[yjh0502]

I uploaded it to my server because the .ll file is a little big.

http://desti.ruree.net/main.o.ll

[kripken]

It's failing on

define linkonce_odr {} @ZSt19__iterator_categoryISt20_List_const_iteratorISsEENSt15iterator_traitsIT_E17iterator_categoryERKS3(%"struct.std::_List_const_iterator<std::basic_string<char, std::char_traits, std::allocator > >"* %unnamed_arg) nounwind inlinehint {

because of that {}. I don't know what {} means - an anonymous empty structure? An opaque value perhaps? The LLVM language reference doesn't explain that, that I can see.

Would help to see the source that compiled into this. But it's probably buried in some libc++ header somewhere.

What platform are you building on? And what exact command did you use to generate the LLVM?

[yjh0502]

llvm-g++ -emit-llvm main.cpp -c
llvm-dis -show-annotations main.o

I'm now on ubuntu 11.04, with llvm-g++ 4.2.1, llvm 2.8

[kripken]

Not sure why I am seeing different results, then.

In any case, this code can't work since it relies on libc++ stuff which emscripten doesn't have. One way to get it to work is to compile it together with libc++, then it would also be possible to understand why it fails here.

[kripken]

This works for me and should work the same everywhere using our bundled headers and other fixes since last year. Please comment if not.