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isinsystemheader
2020 Feb 04
4
How to distinguish between user defined function in a program and library functions
Say, I have the following program:
#include <iostream>
int main(){
std::cout << "hello\n";
return 0;
}
After generating llvm bitcode using the following command:
$ clang++ -c -emit-llvm -O -Xclang -disable-llvm-passes a.cpp
the bitcode has the following function with define.
__cxx_global_var_init
main