https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81848
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-linux
CC| |rguenth at gcc dot gnu.org,
| |wschmidt at gcc dot gnu.org
Known to work| |7.1.0
Host| |x86_64-linux
Known to fail| |8.0
--- Comment #1 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Apparently, a phi statement is not present in a hash_map where expect
it is:
Program received signal SIGSEGV, Segmentation fault.
0x000000000190bdf4 in create_phi_basis (c=0x2921a80, from_phi=0x7ffff666c800,
basis_name=<ssa_name 0x7ffff669b240>, loc=2147483706, known_stride=false)
at /home/mjambor/gcc/bisect/src/gcc/gimple-ssa-strength-reduction.c:2356
2356 slsr_cand_t phi_cand = *stmt_cand_map->get (from_phi);
(gdb) p stmt_cand_map->get (from_phi)
$1 = (slsr_cand_d **) 0x0
CCing Richi who committed the revision uncovering this and Bill who
added the lookup last year.
