[Bug tree-optimization/86850] ubsan: runtime error: member call on null pointer

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86850

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov  6 15:46:42 2018
New Revision: 265848

URL: https://gcc.gnu.org/viewcvs?rev=265848&root=gcc&view=rev
Log:
2018-11-06  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/86850
        * vec.h (vec<T, va_heap, vl_ptr>::splice): Check src.length ()
        instead of src.m_vec.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/vec.h