diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gcse.c | 11 |
2 files changed, 7 insertions, 10 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 06ec826..388b18a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +Mon Jul 24 02:04:52 2000 Jeffrey A Law (law@cygnus.com) + + * gcse.c (alloc_pre_mem, free_pre_mem): Delete unused bitmap + 'temp_bitmap'. + (pre_delete): Corresponding changes. + 2000-07-23 Mark Mitchell <mark@codesourcery.com> * c-semantics.c (make_rtl_for_local_static): Use TREE_ASM_WRITTEN @@ -4038,8 +4038,6 @@ static sbitmap *pre_delete_map; /* Contains the edge_list returned by pre_edge_lcm. */ static struct edge_list *edge_list; -static sbitmap *temp_bitmap; - /* Redundant insns. */ static sbitmap pre_redundant_insns; @@ -4052,7 +4050,6 @@ alloc_pre_mem (n_blocks, n_exprs) transp = sbitmap_vector_alloc (n_blocks, n_exprs); comp = sbitmap_vector_alloc (n_blocks, n_exprs); antloc = sbitmap_vector_alloc (n_blocks, n_exprs); - temp_bitmap = sbitmap_vector_alloc (n_blocks, n_exprs); pre_optimal = NULL; pre_redundant = NULL; @@ -4075,7 +4072,6 @@ free_pre_mem () free (transp); free (comp); free (antloc); - free (temp_bitmap); if (pre_optimal) free (pre_optimal); @@ -4595,11 +4591,6 @@ pre_delete () struct expr *expr; struct occr *occr; - /* Compute the expressions which are redundant and need to be replaced by - copies from the reaching reg to the target reg. */ - for (bb = 0; bb < n_basic_blocks; bb++) - sbitmap_copy (temp_bitmap[bb], pre_delete_map[bb]); - changed = 0; for (i = 0; i < expr_hash_table_size; i++) for (expr = expr_hash_table[i]; expr != NULL; expr = expr->next_same_hash) @@ -4615,7 +4606,7 @@ pre_delete () rtx set; int bb = BLOCK_NUM (insn); - if (TEST_BIT (temp_bitmap[bb], indx)) + if (TEST_BIT (pre_delete_map[bb], indx)) { set = single_set (insn); if (! set) |