How can I see parse tree, intermediate code, optimization code and assembly code during COMPILATION?

Question

I am studying Compilers course, compilation of program follows below steps

1. Lexical analysis
2. Syntax analysis
3. Semantic analysis
4. Interm

Answer 1

You can see the preprocessor output with -E. -fdump-tree-* dumps the tree internal represenation, e.g. -fdump-tree-all. Various -d options exist to dump the RTL intermediate representations, e.g. -fdump-rtl-all (see the manual for the invidual passes that you get dumps of); in addition, -dD dumps all macro definitions.