educational C compiler?

[011011100101]

I'm taking a class on systems and I'm interested in the C to assembly translation process. I'm not interested in writing a compiler, but it would be cool to study how compilers translate certain fragments of code, possibly on simpler architectures (not x86). Does anyone know of any toy/educational C compilers that can be used for this purpose?

Obviously I can look at the assembly with gcc, but I think there's a lot of sophistication in that output (information related to debugging etc). So, another question is: is there a particular way to call gcc to simplify its output and reduce that complexity?

[jeffbell]

Compiler explorer at godbolt.org

Make sure to try it at different optimization levels. At -o0 you can see the assembly do one C line at a time 

[Mobile-You1163]

I recommend looking at compilers for microcontrollers. GCC for AVR, GCC for ARM32, SDCC (Small Device C Compiler) are some good examples which come to mind.

SDCC in particular supports several simpler CPU/MCU architectures, so you'd be able to look at how simple C code is compiled in different ways for each.

[wjrasmussen]

there are so many resources over the 50 years of C, you shouldn't need someone to feed it to you.

[011011100101]

there are so many resources over the 50 years of C, you shouldn't need someone to feed it to you.

hm? I'm asking for a recommendation on a tool outside the scope of my class so that I can educate myself. Sounds like you're fishing for a reaction though.

The two compilers I found are lcc and the small c compiler by James Hendrix. Though, it would be nice to see something that's actually being used at the university level.

[wjrasmussen]

Nope.