How do you get assembler output from C/C++ source in gcc?

Question

How does one do this?

If I want to analyze how something is getting compiled, how would I get the emitted assembly code?

Answer 1

As mentioned before, look at the -S flag.

It's also worth looking at the '-fdump-tree' family of flags, in particular '-fdump-tree-all', which lets you see some of gcc's intermediate forms. These can often be more readable than assembler (at least to me), and let you see how optimisation passes perform.