[Bug middle-end/58484] [4.9 Regression] ICE in chrec_fold_plus_1, at tree-chrec.c:272 building 416.gamess

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58484

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Hm, so are we expecting that instantiate_scev_r through

static tree
instantiate_scev_binary (basic_block instantiate_below,
                         struct loop *evolution_loop, struct loop *inner_loop,
                         tree chrec, enum tree_code code,
                         tree type, tree c0, tree c1,
                         bool fold_conversions, int size_expr)
{
  tree op1;
  tree op0 = instantiate_scev_r (instantiate_below, evolution_loop, inner_loop,
                                 c0, fold_conversions, size_expr);

with evolution_loop == 2 for (integer(kind=4)) ((unsigned int) ma_28 +
4294967295)
returns {0, +, 1}_1, thus an evolution in loop 1 which is an outer loop of 2?

Ah, now that the global cache is in effect it's no longer true that
instantiated_below remains the same ... :/