* tree-ssa-pre.c (do_regular_insertion): Add FIXME markers at points

	of potentially huge memset overhead.
	(do_partial_partial_insertion): Likewise.
	* cfgexpand.c (gimple_expand_cfg): Use XCNEWVEC instead of xcalloc.
	* tree-vrp.c (find_assert_locations): Use XNEWVEC instead of XCNEWVEC
	for arrays to be filled by pre_and_rev_post_order_compute.  Allocate
	the right number of slots, not that number plus NUM_FIXED_BLOCKS.
	* tree-ssa-reassoc.c (init_reassoc): Likewise.
	* cfganal.c (dfs_enumerate_from): Use XNEWVEC instead of XCNEWVEC for
	array used as stack.
	* tree-ssa-sccvn.c (init_scc_vn): Use XNEWVEC instead of XCNEWVEC for
	arrays to be filled by pre_and_rev_post_order_compute.
	* cfgloopmanip.c (find_path): Use XNEWVEC instead of XCNEWVEC for
	array to be filled by dfs_enumerate_from.
	(remove_path): Likewise.
	(duplicate_loop_to_header_edge): Use XNEWVEC instead of XCNEWVEC for
	array of loops that is filled on the next lines.
	* cfgloop.c (get_loop_body): Use XNEWVEC instead of XCNEWVEC for
	array of basic blocks to be returned.
	(get_loop_body_in_dom_order): Likewise.
	(get_loop_body_in_bfs_order): Likewise.
	* tree-ssa-loop-manip.c (loop_renamer_obstack): New static obstack
	for all bitmaps used for rewriting into loop-closed SSA form.
	(add_exit_phis_var): Allocate the def bitmap on it.  Clear the livein
	bitmap at the end to release a lot of memory.
	(add_exit_phis): Allocate the exits bitmap on the new obstack.
	(get_loops_exits): Allocate the exits bitmap on the new obstack.
	(find_uses_to_rename_use): Allocate a use_blocks bitmap if ver is
	seen for the first time.
	(find_uses_to_rename): Add "???" for why the whole function must
	be re-scanned if changed_bbs is empty.
	(rewrite_into_loop_closed_ssa): Allocate bitmaps on the new obstack.
	Use XNEWVEC to allocate the use_blocks array.  Initialize the new
	obstack, and free it at the end.  Remove loop over all SSA names.
	(check_loop_closed_ssa_stmt): Look only at SSA_OP_USE operands.
	* tree-cfg.c (move_sese_region_to_fn): Use XNEWVEC instead of
	xcalloc to allocate edge_pred and edge_flag arrays.



git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@190359 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 3 insertions, 3 deletions

diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index b9ca4b024de..98a306fd68c 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -71,7 +71,7 @@ find_path (edge e, basic_block **bbs)
   gcc_assert (EDGE_COUNT (e->dest->preds) <= 1);
 
   /* Find bbs in the path.  */
-  *bbs = XCNEWVEC (basic_block, n_basic_blocks);
+  *bbs = XNEWVEC (basic_block, n_basic_blocks);
   return dfs_enumerate_from (e->dest, 0, rpe_enum_p, *bbs,
 			     n_basic_blocks, e->dest);
 }
@@ -322,7 +322,7 @@ remove_path (edge e)
   nrem = find_path (e, &rem_bbs);
 
   n_bord_bbs = 0;
-  bord_bbs = XCNEWVEC (basic_block, n_basic_blocks);
+  bord_bbs = XNEWVEC (basic_block, n_basic_blocks);
   seen = sbitmap_alloc (last_basic_block);
   sbitmap_zero (seen);
 
@@ -1135,7 +1135,7 @@ duplicate_loop_to_header_edge (struct loop *loop, edge e,
   n_orig_loops = 0;
   for (aloop = loop->inner; aloop; aloop = aloop->next)
     n_orig_loops++;
-  orig_loops = XCNEWVEC (struct loop *, n_orig_loops);
+  orig_loops = XNEWVEC (struct loop *, n_orig_loops);
   for (aloop = loop->inner, i = 0; aloop; aloop = aloop->next, i++)
     orig_loops[i] = aloop;