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From: 'Neil Booth' <neil@daikokuya.demon.co.uk> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: preprocessor/6084: cpp Segmentation Fault Date: Mon, 15 Apr 2002 11:16:00 -0000 [thread overview] Message-ID: <20020415181608.24435.qmail@sources.redhat.com> (raw) The following reply was made to PR preprocessor/6084; it has been noted by GNATS. From: 'Neil Booth' <neil@daikokuya.demon.co.uk> To: "Gerwin, Joshua A" <joshua.a.gerwin@intel.com> Cc: 'Phil Edwards' <phil@jaj.com>, joshg@hf.intel.com, gcc-gnats@gcc.gnu.org, rnesius@ichips.intel.com, "Nguyen, Tuan" <tuan.nguyen@intel.com>, gcc-bugs@gcc.gnu.org Subject: Re: preprocessor/6084: cpp Segmentation Fault Date: Mon, 15 Apr 2002 19:15:40 +0100 Gerwin, Joshua A wrote:- > OK, here's my theory as to why I think you aren't seeing it in > maybe_print_line. Often when we compile, we use an optimizing flag (admit > it, you do this sometimes too!) and in this case the optimizer dropped the > jump to the separate print_line function and put the fprintf directly in > maybe_print_line. So in cppmain.c (line 329 by my reckoning), effectively > substitute > > else > { > print.lineno = line; > print_line (""); > } > > with > > else > { > print.lineno = line; > if (print.printed) putc ('\n', print.outf); > print.printed = 0; > fprintf (print.outf, "# %u \"%s\"%s%s\n", > print.lineno, print.last_fname, "", print.syshdr_flags); > } > > This saves a subroutine call. OK. Why can't you give me more info? Like the variables in question; clearly one is NULL? Maybe investigate why it is NULL in this case and not when you switch command line args? It would save us both a lot of time. Neil.
next reply other threads:[~2002-04-15 18:16 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-04-15 11:16 'Neil Booth' [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-05-21 13:34 neil 2002-05-21 13:33 neil 2002-04-17 23:52 neil 2002-04-15 19:46 Gerwin, Joshua A 2002-04-15 18:06 Richard Henderson 2002-04-15 12:06 'Neil Booth' 2002-04-15 11:36 Gerwin, Joshua A 2002-04-15 11:06 Gerwin, Joshua A 2002-04-13 1:26 Phil Edwards 2002-04-13 1:16 Phil Edwards 2002-04-12 22:16 Neil Booth 2002-04-12 16:06 Gerwin, Joshua A 2002-04-12 13:36 Phil Edwards 2002-04-03 22:36 'Neil Booth' 2002-04-03 17:06 Gerwin, Joshua A 2002-04-02 22:36 Neil Booth 2002-03-29 12:16 Neil Booth 2002-03-29 11:36 Gerwin, Joshua A 2002-03-29 0:20 neil
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