https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80345
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amker.cheng at gmail dot com
--- Comment #11 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #9)
> Fixed on trunk (in between 5-base and 6-base) by r233269.
Unfortunately, simple back-porting of the patch does not work on gcc-5 branch:
internal compiler error: in get_computation_aff, at tree-ssa-loop-ivopts.c:3129
fn2() { fn1(fn2); }
^
0xe39a33 get_computation_aff
../../gcc/tree-ssa-loop-ivopts.c:3129
0xe39d48 get_computation_at
../../gcc/tree-ssa-loop-ivopts.c:3205
0xe39dba get_computation
../../gcc/tree-ssa-loop-ivopts.c:3217
0xe421ba rewrite_use_nonlinear_expr
../../gcc/tree-ssa-loop-ivopts.c:6459
0xe42c3a rewrite_use
../../gcc/tree-ssa-loop-ivopts.c:6699
0xe42d13 rewrite_uses
../../gcc/tree-ssa-loop-ivopts.c:6732
0xe43d16 tree_ssa_iv_optimize_loop
../../gcc/tree-ssa-loop-ivopts.c:7062
0xe43dce tree_ssa_iv_optimize()
../../gcc/tree-ssa-loop-ivopts.c:7094
Adding Bin Cheng.
