diff options
Diffstat (limited to 'gcc/df-scan.c')
| -rw-r--r-- | gcc/df-scan.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/df-scan.c b/gcc/df-scan.c index ec0d12e..761ba79 100644 --- a/gcc/df-scan.c +++ b/gcc/df-scan.c @@ -1980,7 +1980,8 @@ df_ref_change_reg_with_loc_1 (struct df_reg_info *old_df, DF_REF_PREV_REG (new_df->reg_chain) = the_ref; new_df->reg_chain = the_ref; new_df->n_refs++; - df_set_bb_dirty (DF_REF_BB (the_ref)); + if (DF_REF_BB (the_ref)) + df_set_bb_dirty (DF_REF_BB (the_ref)); /* Need to sort the record again that the ref was in because the regno is a sorting key. First, find the right |