diff options
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 71d4e17..0598863 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -1849,7 +1849,8 @@ find_interesting_uses (struct ivopts_data *data) for (bsi = gsi_start_phis (bb); !gsi_end_p (bsi); gsi_next (&bsi)) find_interesting_uses_stmt (data, gsi_stmt (bsi)); for (bsi = gsi_start_bb (bb); !gsi_end_p (bsi); gsi_next (&bsi)) - find_interesting_uses_stmt (data, gsi_stmt (bsi)); + if (!is_gimple_debug (gsi_stmt (bsi))) + find_interesting_uses_stmt (data, gsi_stmt (bsi)); } if (dump_file && (dump_flags & TDF_DETAILS)) @@ -5621,7 +5622,24 @@ remove_unused_ivs (struct ivopts_data *data) && !info->inv_id && !info->iv->have_use_for && !info->preserve_biv) - remove_statement (SSA_NAME_DEF_STMT (info->iv->ssa_name), true); + { + if (MAY_HAVE_DEBUG_STMTS) + { + gimple stmt; + imm_use_iterator iter; + + FOR_EACH_IMM_USE_STMT (stmt, iter, info->iv->ssa_name) + { + if (!gimple_debug_bind_p (stmt)) + continue; + + /* ??? We can probably do better than this. */ + gimple_debug_bind_reset_value (stmt); + update_stmt (stmt); + } + } + remove_statement (SSA_NAME_DEF_STMT (info->iv->ssa_name), true); + } } } |