diff options
Diffstat (limited to 'gcc-4.8/gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc-4.8/gcc/tree-vect-loop.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/gcc-4.8/gcc/tree-vect-loop.c b/gcc-4.8/gcc/tree-vect-loop.c index 1252c5a04..ce531e137 100644 --- a/gcc-4.8/gcc/tree-vect-loop.c +++ b/gcc-4.8/gcc/tree-vect-loop.c @@ -4326,12 +4326,12 @@ vect_finalize_reduction: result. (The reduction result is expected to have two immediate uses - one at the latch block, and one at the loop exit). */ FOR_EACH_IMM_USE_FAST (use_p, imm_iter, scalar_dest) - if (!flow_bb_inside_loop_p (loop, gimple_bb (USE_STMT (use_p)))) + if (!flow_bb_inside_loop_p (loop, gimple_bb (USE_STMT (use_p))) + && !is_gimple_debug (USE_STMT (use_p))) phis.safe_push (USE_STMT (use_p)); - /* We expect to have found an exit_phi because of loop-closed-ssa - form. */ - gcc_assert (!phis.is_empty ()); + /* While we expect to have found an exit_phi because of loop-closed-ssa + form we can end up without one if the scalar cycle is dead. */ FOR_EACH_VEC_ELT (phis, i, exit_phi) { @@ -4456,7 +4456,10 @@ vect_finalize_reduction: FOR_EACH_IMM_USE_FAST (use_p, imm_iter, scalar_dest) { if (!flow_bb_inside_loop_p (loop, gimple_bb (USE_STMT (use_p)))) - phis.safe_push (USE_STMT (use_p)); + { + if (!is_gimple_debug (USE_STMT (use_p))) + phis.safe_push (USE_STMT (use_p)); + } else { if (double_reduc && gimple_code (USE_STMT (use_p)) == GIMPLE_PHI) @@ -4466,7 +4469,8 @@ vect_finalize_reduction: FOR_EACH_IMM_USE_FAST (phi_use_p, phi_imm_iter, phi_res) { if (!flow_bb_inside_loop_p (loop, - gimple_bb (USE_STMT (phi_use_p)))) + gimple_bb (USE_STMT (phi_use_p))) + && !is_gimple_debug (USE_STMT (phi_use_p))) phis.safe_push (USE_STMT (phi_use_p)); } } |