https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91403
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so I have a patch to fix the recursion depth in SCEV analysis but then we
hit
the next one in SLSR, in my case because with -O0 there's no tailcall performed
but even with -O2 we don't tailcall it.
#8 0x0000000001fbb1d7 in replace_unconditional_candidate (c=0x200a1b60)
at /space/rguenther/src/svn/trunk2/gcc/gimple-ssa-strength-reduction.c:2223
#9 0x0000000001fbc47a in replace_uncond_cands_and_profitable_phis (
c=0x200a1b60)
at /space/rguenther/src/svn/trunk2/gcc/gimple-ssa-strength-reduction.c:2625
#10 0x0000000001fbc4bc in replace_uncond_cands_and_profitable_phis (
c=0x200a1ae0)
at /space/rguenther/src/svn/trunk2/gcc/gimple-ssa-strength-reduction.c:2631
...
#599120 0x0000000001fbc4bc in replace_uncond_cands_and_profitable_phis (
c=0x33ba1b0)
at /space/rguenther/src/svn/trunk2/gcc/gimple-ssa-strength-reduction.c:2631
2631 replace_uncond_cands_and_profitable_phis (lookup_cand
(c->dependent));
given the structure a worklist would be necessary to fix things there.
