diff options
Diffstat (limited to 'gcc/df-core.c')
| -rw-r--r-- | gcc/df-core.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/gcc/df-core.c b/gcc/df-core.c index 59602dea291..87d9324d80f 100644 --- a/gcc/df-core.c +++ b/gcc/df-core.c @@ -354,7 +354,30 @@ df_set_blocks (struct df *df, bitmap blocks) { if (blocks) { - if (!df->blocks_to_analyze) + if (df->blocks_to_analyze) + { + int p; + bitmap diff = BITMAP_ALLOC (NULL); + bitmap_and_compl (diff, df->blocks_to_analyze, blocks); + for (p = 0; p < df->num_problems_defined; p++) + { + struct dataflow *dflow = df->problems_in_order[p]; + if (*dflow->problem->free_bb_fun) + { + bitmap_iterator bi; + unsigned int bb_index; + + EXECUTE_IF_SET_IN_BITMAP (diff, 0, bb_index, bi) + { + basic_block bb = BASIC_BLOCK (bb_index); + (*dflow->problem->free_bb_fun) (dflow, bb, diff); + } + } + } + + BITMAP_FREE (diff); + } + else df->blocks_to_analyze = BITMAP_ALLOC (NULL); bitmap_copy (df->blocks_to_analyze, blocks); } @@ -781,8 +804,10 @@ df_compact_blocks (struct df *df) These are from orphaned blocks. */ for (i = NUM_FIXED_BLOCKS; i < last_basic_block; i++) { - if (problem_temps[i]) - (*dflow->problem->free_bb_fun) (dflow, problem_temps[i]); + basic_block bb = BASIC_BLOCK (i); + if (problem_temps[i] && bb) + (*dflow->problem->free_bb_fun) + (dflow, bb, problem_temps[i]); } } } |