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I have found -E very useful to see preprocessor output and debug macros, and I have seen -fdump-class-hierarchy to look at the v-tables of a class hierarchy…I know there are flags to dump asm output as well..what are some other widely (or perhaps a bit unknown but very handy) flags akin to these?
Few flags which I like:
-x language: used to compile file with extension other than .c or .cpp-s– dump asm.-g– debug build.gcc -O3 -Q --help=optimizers | grep disabled– will give you all optimization flags which remain diabled even after-O3Wonderful place for all wonderful options