add auto_vec

2013-11-22  Trevor Saunders  <tsaunders@mozilla.com>

gcc/
	* vec.h (auto_vec): New class.
	* cfganal.c, cfgloop.c, cgraphunit.c, config/i386/i386.c, dwarf2out.c,
	function.c, genautomata.c, gimple.c, haifa-sched.c, ipa-inline.c,
	ira-build.c, loop-unroll.c, omp-low.c, ree.c, trans-mem.c,
tree-call-cdce.c, tree-eh.c, tree-if-conv.c, tree-into-ssa.c,
tree-loop-distribution.c, tree-predcom.c, tree-sra.c,
tree-sssa-forwprop.c, tree-ssa-loop-manip.c, tree-ssa-pre.c,
tree-ssa-reassoc.c, tree-ssa-sccvn.c, tree-ssa-structalias.c,
	tree-vect-loop.c, tree-vect-stmts.c: Use auto_vec and stack_vec as
	appropriate instead of vec for local variables.

	cp/
	* parser.c, semantics.c: Change some local variables from vec to
	auto_vec or stack_vec.

From-SVN: r205244

1 files changed, 4 insertions, 14 deletions

diff --git a/gcc/loop-unroll.c b/gcc/loop-unroll.c
index 1240f7c..9c87167 100644
--- a/gcc/loop-unroll.c
+++ b/gcc/loop-unroll.c
@@ -578,7 +578,6 @@ peel_loop_completely (struct loop *loop)
   sbitmap wont_exit;
   unsigned HOST_WIDE_INT npeel;
   unsigned i;
-  vec<edge> remove_edges;
   edge ein;
   struct niter_desc *desc = get_simple_loop_desc (loop);
   struct opt_info *opt_info = NULL;
@@ -595,8 +594,7 @@ peel_loop_completely (struct loop *loop)
       if (desc->noloop_assumptions)
 	bitmap_clear_bit (wont_exit, 1);
 
-      remove_edges.create (0);
-
+      auto_vec<edge> remove_edges;
       if (flag_split_ivs_in_unroller)
         opt_info = analyze_insns_in_loop (loop);
 
@@ -622,7 +620,6 @@ peel_loop_completely (struct loop *loop)
       /* Remove the exit edges.  */
       FOR_EACH_VEC_ELT (remove_edges, i, ein)
 	remove_path (ein);
-      remove_edges.release ();
     }
 
   ein = desc->in_edge;
@@ -760,7 +757,6 @@ unroll_loop_constant_iterations (struct loop *loop)
   unsigned exit_mod;
   sbitmap wont_exit;
   unsigned i;
-  vec<edge> remove_edges;
   edge e;
   unsigned max_unroll = loop->lpt_decision.times;
   struct niter_desc *desc = get_simple_loop_desc (loop);
@@ -778,7 +774,7 @@ unroll_loop_constant_iterations (struct loop *loop)
   wont_exit = sbitmap_alloc (max_unroll + 1);
   bitmap_ones (wont_exit);
 
-  remove_edges.create (0);
+  auto_vec<edge> remove_edges;
   if (flag_split_ivs_in_unroller
       || flag_variable_expansion_in_unroller)
     opt_info = analyze_insns_in_loop (loop);
@@ -928,7 +924,6 @@ unroll_loop_constant_iterations (struct loop *loop)
   /* Remove the edges.  */
   FOR_EACH_VEC_ELT (remove_edges, i, e)
     remove_path (e);
-  remove_edges.release ();
 
   if (dump_file)
     fprintf (dump_file,
@@ -1099,11 +1094,9 @@ unroll_loop_runtime_iterations (struct loop *loop)
   rtx old_niter, niter, init_code, branch_code, tmp;
   unsigned i, j, p;
   basic_block preheader, *body, swtch, ezc_swtch;
-  vec<basic_block> dom_bbs;
   sbitmap wont_exit;
   int may_exit_copy;
   unsigned n_peel;
-  vec<edge> remove_edges;
   edge e;
   bool extra_zero_check, last_may_exit;
   unsigned max_unroll = loop->lpt_decision.times;
@@ -1117,7 +1110,7 @@ unroll_loop_runtime_iterations (struct loop *loop)
     opt_info = analyze_insns_in_loop (loop);
 
   /* Remember blocks whose dominators will have to be updated.  */
-  dom_bbs.create (0);
+  auto_vec<basic_block> dom_bbs;
 
   body = get_loop_body (loop);
   for (i = 0; i < loop->num_nodes; i++)
@@ -1174,7 +1167,7 @@ unroll_loop_runtime_iterations (struct loop *loop)
   /* Precondition the loop.  */
   split_edge_and_insert (loop_preheader_edge (loop), init_code);
 
-  remove_edges.create (0);
+  auto_vec<edge> remove_edges;
 
   wont_exit = sbitmap_alloc (max_unroll + 2);
 
@@ -1298,7 +1291,6 @@ unroll_loop_runtime_iterations (struct loop *loop)
   /* Remove the edges.  */
   FOR_EACH_VEC_ELT (remove_edges, i, e)
     remove_path (e);
-  remove_edges.release ();
 
   /* We must be careful when updating the number of iterations due to
      preconditioning and the fact that the value must be valid at entry
@@ -1335,8 +1327,6 @@ unroll_loop_runtime_iterations (struct loop *loop)
 	     ";; Unrolled loop %d times, counting # of iterations "
 	     "in runtime, %i insns\n",
 	     max_unroll, num_loop_insns (loop));
-
-  dom_bbs.release ();
 }
 
 /* Decide whether to simply peel LOOP and how much.  */