3.17. GCC Developer Options
3.17 GCC Developer Options
This section describes command-line options that are primarily of interest to GCC developers, including options to support compiler testing and investigation of compiler bugs and compile-time performance problems. This includes options that produce debug dumps at various points in the compilation; that print statistics such as memory use and execution time; and that print information about GCC's configuration, such as where it searches for libraries. You should rarely need to use any of these options for ordinary compilation and linking tasks.
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-dletters-fdump-rtl-pass-fdump-rtl-pass=filename - Says to make debugging dumps during compilation at times specified by letters<
