[Bug sanitizer/63839] ICE: tree check: expected ssa_name, have var_decl in simplify_builtin_call, at tree-ssa-forwprop.c:1441 with -fsanitize=unreachable

["mpolacek at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63839

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Fri Nov 14 11:22:12 2014
New Revision: 217553

URL: https://gcc.gnu.org/viewcvs?rev=217553&root=gcc&view=rev
Log:
    PR sanitizer/63839
    * asan.c (ATTR_CONST_NORETURN_NOTHROW_LEAF_LIST,
    ATTR_COLD_CONST_NORETURN_NOTHROW_LEAF_LIST): Define.
    * builtin-attrs.def (ATTR_COLD_CONST_NORETURN_NOTHROW_LEAF_LIST):
    Define.
    * builtins.c (fold_builtin_0): Don't include ubsan.h.  Don't
    instrument BUILT_IN_UNREACHABLE here.
    * sanitizer.def (BUILT_IN_UBSAN_HANDLE_BUILTIN_UNREACHABLE): Make
    const.
    * sanopt.c (pass_sanopt::execute): Instrument BUILT_IN_UNREACHABLE.
    * tree-ssa-ccp.c (optimize_unreachable): Bail out if
    SANITIZE_UNREACHABLE.
    * ubsan.c (ubsan_instrument_unreachable): Rewrite for GIMPLE.
    * ubsan.h (ubsan_instrument_unreachable): Adjust declaration.
testsuite/
    * c-c++-common/ubsan/pr63839.c: New test.
    * c-c++-common/ubsan/unreachable-2.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/ubsan/pr63839.c
    trunk/gcc/testsuite/c-c++-common/ubsan/unreachable-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/asan.c
    trunk/gcc/builtin-attrs.def
    trunk/gcc/builtins.c
    trunk/gcc/sanitizer.def
    trunk/gcc/sanopt.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-ccp.c
    trunk/gcc/ubsan.c
    trunk/gcc/ubsan.h