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did anyone ever debug a c/c++ compiler?
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Originally Posted by jbennet 
from my computer science book;
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Originally Posted by jbennet's computer science book
The first compilers were written in assembly language as building a self-hosting compiler is a bootstrapping problem
Since the 1970s it has become common practice to implement a compiler in the language it compiles and C has historically been a popular choice of implementation language.
And when writing a compiler, there is (a) no reason to drop down in C to write some parts, and (b) absolutely no reason you'd write parts of it in assembly.
For example, the Java HotSpot JIT compiler is written in C++, LLVM is written in C++, most Scheme compilers are written in Scheme, SBCL is written in Common Lisp, GHC is written in Haskell, and Wirth's Pascal compiler was written in Pascal... need I go on? Using a low level language like C, or worse, assembly, for something like a compiler, would not make any sense.
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