[Bug sanitizer/83388] reference statement index not found error with -fsanitize=null

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83388

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Dec 15 13:43:30 2017
New Revision: 255694

URL: https://gcc.gnu.org/viewcvs?rev=255694&root=gcc&view=rev
Log:
2017-12-15  Richard Biener  <rguent...@suse.de>

        PR lto/83388
        * internal-fn.def (IFN_NOP): Add.
        * internal-fn.c (expand_NOP): Do nothing.
        * lto-streamer-in.c (input_function): Instead of removing
        sanitizer calls replace them with IFN_NOP calls.

        * gcc.dg/lto/pr83388_0.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/lto/pr83388_0.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/internal-fn.c
    trunk/gcc/internal-fn.def
    trunk/gcc/lto-streamer-in.c
    trunk/gcc/testsuite/ChangeLog