[Bug c/68473] [6 Regression] ICE: in contains_point, at diagnostic-show-locus.c:340 after error

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68473

--- Comment #11 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Tue Dec 22 22:27:45 2015
New Revision: 231919

URL: https://gcc.gnu.org/viewcvs?rev=231919&root=gcc&view=rev
Log:
PR c/68473: sanitize source range-printing within certain macro expansions

gcc/ChangeLog:
        PR c/68473
        * diagnostic-show-locus.c (layout::layout): Make loc_range const.
        Sanitize the layout_range against ranges that finish before they
        start.

gcc/testsuite/ChangeLog:
        PR c/68473
        * gcc.dg/plugin/diagnostic-test-expressions-1.c (fminl): New decl.
        (TEST_EQ): New macro.
        (test_macro): New function.
        * gcc.target/i386/pr68473-1.c: New test case.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr68473-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/diagnostic-show-locus.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-expressions-1.c