andrewc12 / parse_rtl

python script for parsing gcc's RTL

Overview

Tool to parse gcc's RTL dumps.

Usage

• compile with CFLAGS+=-fdump-rtl-expand
• check filename of generated .expand files. Current code assumes "*.c.213r.expand". If yours looks different, adjust _rtl_expand_suffix variable in parse_syms.py
• run "parse_syms.py <path-to-expand_files> >out.dot
• create pdf, e.g., "dot -Tpdf out.dot > out.pdf"