Index: utils/chunk-print-before-all.py =================================================================== --- utils/chunk-print-before-all.py +++ utils/chunk-print-before-all.py @@ -0,0 +1,42 @@ +#!/usr/bin/env python +# Given a -print-before-all -print-module-scope log from an opt invocation, +# chunk it into a series of individual IR files, one for each pass invocation. +# If the log ends with an obvious stack trace, try to split off a separate +# "crashinfo.txt" file leaving only the valid input IR in the last chunk. +# Files are written to current working directory. + +import sys + +basename = "chunk-" +chunk_id = 0 + +def print_chunk(lines): + global chunk_id + global basename + fname = basename + str(chunk_id) + ".ll" + chunk_id = chunk_id + 1 + print "writing chunk " + fname + " (" + str(len(lines)) + " lines)" + with open(fname, "w") as f: + f.writelines(lines) + +isdump = False +cur = [] +for line in sys.stdin: + if line.startswith("*** IR Dump Before ") and len(cur) != 0: + print_chunk(cur); + cur = [] + cur.append("; " + line) + elif line.startswith("Stack dump:"): + print_chunk(cur); + cur = [] + cur.append(line) + isdump = True + else: + cur.append(line) + +if isdump: + print "writing crashinfo.txt (" + str(len(cur)) + " lines)" + with open("crashinfo.txt", "w") as f: + f.writelines(cur) +else: + print_chunk(cur);