diff options
Diffstat (limited to 'gcc/tree-into-ssa.c')
| -rw-r--r-- | gcc/tree-into-ssa.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/gcc/tree-into-ssa.c b/gcc/tree-into-ssa.c index 258962882f4..97880a55a7a 100644 --- a/gcc/tree-into-ssa.c +++ b/gcc/tree-into-ssa.c @@ -22,6 +22,7 @@ along with GCC; see the file COPYING3. If not see #include "system.h" #include "coretypes.h" #include "tm.h" +#include "bitvec.h" #include "hash-set.h" #include "machmode.h" #include "vec.h" @@ -135,7 +136,7 @@ static sbitmap old_ssa_names; the operations done on them are presence tests. */ static sbitmap new_ssa_names; -static sbitmap interesting_blocks; +static bitvec interesting_blocks; /* Set of SSA names that have been marked to be released after they were registered in the replacement table. They will be finally @@ -715,7 +716,7 @@ mark_def_sites (basic_block bb, gimple stmt, bitmap kills) set_rewrite_uses (stmt, true); } if (rewrite_uses_p (stmt)) - bitmap_set_bit (interesting_blocks, bb->index); + interesting_blocks[bb->index] = true; return; } @@ -743,7 +744,7 @@ mark_def_sites (basic_block bb, gimple stmt, bitmap kills) /* If we found the statement interesting then also mark the block BB as interesting. */ if (rewrite_uses_p (stmt) || register_defs_p (stmt)) - bitmap_set_bit (interesting_blocks, bb->index); + interesting_blocks[bb->index] = true; } /* Structure used by prune_unused_phi_nodes to record bounds of the intervals @@ -1480,7 +1481,7 @@ rewrite_dom_walker::before_dom_children (basic_block bb) /* Step 2. Rewrite every variable used in each statement in the block with its immediate reaching definitions. Update the current definition of a variable when a new real or virtual definition is found. */ - if (bitmap_bit_p (interesting_blocks, bb->index)) + if (interesting_blocks[bb->index]) for (gimple_stmt_iterator gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi)) rewrite_stmt (&gsi); @@ -2179,7 +2180,7 @@ rewrite_update_dom_walker::before_dom_children (basic_block bb) } /* Step 2. Rewrite every variable used in each statement in the block. */ - if (bitmap_bit_p (interesting_blocks, bb->index)) + if (interesting_blocks[bb->index]) { gcc_checking_assert (bitmap_bit_p (blocks_to_update, bb->index)); for (gimple_stmt_iterator gsi = gsi_start_bb (bb); !gsi_end_p (gsi); ) @@ -2396,8 +2397,7 @@ pass_build_ssa::execute (function *fun) /* Initialize the set of interesting blocks. The callback mark_def_sites will add to this set those blocks that the renamer should process. */ - interesting_blocks = sbitmap_alloc (last_basic_block_for_fn (fun)); - bitmap_clear (interesting_blocks); + interesting_blocks.grow (last_basic_block_for_fn (fun)); /* Initialize dominance frontier. */ dfs = XNEWVEC (bitmap_head, last_basic_block_for_fn (fun)); @@ -2422,7 +2422,7 @@ pass_build_ssa::execute (function *fun) bitmap_clear (&dfs[bb->index]); free (dfs); - sbitmap_free (interesting_blocks); + interesting_blocks.clear_and_release (); fini_ssa_renamer (); @@ -3399,14 +3399,13 @@ update_ssa (unsigned update_flags) get_var_info (sym)->info.current_def = NULL_TREE; /* Now start the renaming process at START_BB. */ - interesting_blocks = sbitmap_alloc (last_basic_block_for_fn (cfun)); - bitmap_clear (interesting_blocks); + interesting_blocks.grow (last_basic_block_for_fn (cfun)); EXECUTE_IF_SET_IN_BITMAP (blocks_to_update, 0, i, bi) - bitmap_set_bit (interesting_blocks, i); + interesting_blocks[i] = true; rewrite_blocks (start_bb, REWRITE_UPDATE); - sbitmap_free (interesting_blocks); + interesting_blocks.clear_and_release (); /* Debugging dumps. */ if (dump_file) |