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aspis.sh give error when compiled with cpp code. #12

@LucaLeonx

Description

@LucaLeonx

Running a simple compilation with aspis.sh:

$ ./aspis.sh --llvm-bin /your/path/llvm-project/build/bin examples/cpp-benchmarks/full_test.cpp 

Leads to the following error:

fatal error: error in backend: unknown special variable
clang-16: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 16.0.6 clang-16: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs.

ERROR: Command FAILED:/your/path/llvm-project/build/bin/clang -lstdc++ ./out.ll -o ./out

The problem seems to be due to the #include <iostream> call.
Somehow, the ASPIS toolchain creates some special variable in the out.ll file that the back-end can't translate.

The problem is NOT the standard library since a program with the inclusion of vector doesn't yield an error.

How to see the error

Firstly, I run the following code, which results in the previous error.

#include <iostream>

int main(){
    std::cout<<"Hello World"<<std::endl;
    return 0;
}

While the code below, with the C-style print and the allocation of a vector (check if the problem is the std library), won't result in an error.

#include <vector>
#include <stdio.h>

int main(){
    std::vector<int> {};
    printf("Hello World\n");
    return 0;
}

You can check the error by yourself just by running aspis.sh on full_test.cpp file.

I'm still not sure if the problem is only on my machine, so it would be useful if someone could run it on their machine.

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