[Bug sanitizer/79589] ICE in gimplify_compound_expr (gimplify.c:5712) with -fsanitize=undefined

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79589

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Feb 21 17:59:07 2017
New Revision: 245638

URL: https://gcc.gnu.org/viewcvs?rev=245638&root=gcc&view=rev
Log:
        PR sanitizer/79589
        * decl.c: Include gimplify.h.
        (cp_finish_decomp): Make sure there is no sharing of trees
        in between DECL_VALUE_EXPR of decomposition decls.

        * g++.dg/ubsan/pr79589.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/ubsan/pr79589.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/testsuite/ChangeLog