I am trying to insert a label at the end of every function. Then, I will use this label later when I parse the assembly to insert a function call Keep in mind that my approach requires the -S flag for C files. Then I parse the asm and fix it up, and finally compile the asm file to an executable or object file. I search for the EPILOGE_END note using the following: if(GET_CODE(insn_ptr) == NOTE) { if(strcmp("NOTE_INSN_EPILOGUE_BEG", GET_NOTE_INSN_NAME (NOTE_LINE_NUMBER (insn_ptr))) == 0) After I see this I use emit_label_before(pattern, insn_ptr) (I have also tried emit_label_after, and several permutations thereof) For small files everything is fine and dandy, but for large compiles I inevitably get an internal error. For example: samplein.c: In function `initAIFF': samplein.c:595: internal error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions. Any ideas on why the compiler bombs here? Brian