Crash with rvalue structs

[atilaneves]

Code to reproduce:

# build.sh
clang++ -c cppstl.cpp
./d++ --ignore-ns std --ignore-ns __gnu_cxx --ignore-ns __gnu_debug --ignore-ns __cxxabiv1 stl.dpp

// cppstl.hpp
#include <vector>

struct Problem {
    Problem(int length);
    int numInts() const;

private:
    std::vector<int> ints;
};

// cppstl.cpp
#include "cppstl.hpp"
#include <iostream>

using namespace std;

Problem::Problem(int length):ints(length) {
    cout << "C++ Problem ctor this: "  << this << " length: " << length << endl;
    cout << "C++ ints length: " << ints.size() << endl;
}

int Problem::numInts() const {
    cout << "C++ numInts this: " << this << endl;
    return ints.size();
}

#include "cppstl.hpp"
void main() {
    assert(Problem(42).numInts == 42);
}

Running produces this output:

C++ Problem ctor this: 0x7fffde27cf98 length: 42
C++ ints length: 42
C++ numInts this: 0x4f98decc6d648d00
zsh: segmentation fault (core dumped)  ./stl

Notice that the pointer passed to numInts is not the same as the pointer of the created struct. The code works as expected if passed as an rvalue.

[atilaneves]

This is actually this dmd issue.

It works fine with ldc.