[PATCH 12/13] Eliminate FOR_EACH_BB_REVERSE macro.

[David Malcolm <dmalcolm at redhat dot com>]

gcc/
	* basic-block.h (FOR_EACH_BB_REVERSE): Eliminate macro.

	* cfghooks.c (verify_flow_info): Replace uses of FOR_EACH_BB_REVERSE
	with FOR_EACH_BB_REVERSE_FN, making uses of cfun explicit.
	* cfgrtl.c (print_rtl_with_bb, rtl_verify_edges,
	rtl_verify_bb_insns, rtl_verify_bb_pointers,
	rtl_verify_bb_insn_chain, rtl_verify_fallthru): Likewise.
	* config/ia64/ia64.c (emit_predicate_relation_info): Likewise.
	* config/sh/sh.c (sh_md_init_global): Likewise.
	* dce.c (reset_unmarked_insns_debug_uses, delete_unmarked_insns):
	Likewise.
	* dominance.c (calc_dfs_tree): Likewise.
	* final.c (final): Likewise.
	* function.c (thread_prologue_and_epilogue_insns): Likewise.
	* gcse.c (compute_code_hoist_vbeinout): Likewise.
	* ira.c (update_equiv_regs, build_insn_chain): Likewise.
	* lcm.c (compute_antinout_edge): Likewise.
	* mode-switching.c (optimize_mode_switching): Likewise.
	* postreload.c (reload_combine): Likewise.
	* recog.c (split_all_insns, peephole2_optimize): Likewise.
	* tree-ssa-live.c (live_worklist): Likewise.
---
 gcc/basic-block.h      |  2 --
 gcc/cfghooks.c         |  2 +-
 gcc/cfgrtl.c           | 12 ++++++------
 gcc/config/ia64/ia64.c |  4 ++--
 gcc/config/sh/sh.c     |  2 +-
 gcc/dce.c              |  4 ++--
 gcc/dominance.c        |  4 ++--
 gcc/final.c            |  2 +-
 gcc/function.c         |  2 +-
 gcc/gcse.c             |  2 +-
 gcc/ira.c              |  4 ++--
 gcc/lcm.c              |  2 +-
 gcc/mode-switching.c   |  4 ++--
 gcc/postreload.c       |  2 +-
 gcc/recog.c            |  4 ++--
 gcc/tree-ssa-live.c    |  2 +-
 16 files changed, 26 insertions(+), 28 deletions(-)

diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index b378a5b..75f16ac 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -336,8 +336,6 @@ struct GTY(()) control_flow_graph {
 #define FOR_EACH_BB_REVERSE_FN(BB, FN) \
   FOR_BB_BETWEEN (BB, (FN)->cfg->x_exit_block_ptr->prev_bb, (FN)->cfg->x_entry_block_ptr, prev_bb)
 
-#define FOR_EACH_BB_REVERSE(BB) FOR_EACH_BB_REVERSE_FN (BB, cfun)
-
 /* For iterating over insns in basic block.  */
 #define FOR_BB_INSNS(BB, INSN)			\
   for ((INSN) = BB_HEAD (BB);			\
diff --git a/gcc/cfghooks.c b/gcc/cfghooks.c
index 2400965..78218b5 100644
--- a/gcc/cfghooks.c
+++ b/gcc/cfghooks.c
@@ -123,7 +123,7 @@ verify_flow_info (void)
     }
 
   /* Now check the basic blocks (boundaries etc.) */
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       int n_fallthru = 0;
       edge e;
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c
index daadd9b..7734ac1 100644
--- a/gcc/cfgrtl.c
+++ b/gcc/cfgrtl.c
@@ -2153,7 +2153,7 @@ print_rtl_with_bb (FILE *outf, const_rtx rtx_first, int flags)
 
       if (flags & TDF_BLOCKS)
 	{
-	  FOR_EACH_BB_REVERSE (bb)
+	  FOR_EACH_BB_REVERSE_FN (bb, cfun)
 	    {
 	      rtx x;
 
@@ -2408,7 +2408,7 @@ rtl_verify_edges (void)
   int err = 0;
   basic_block bb;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       int n_fallthru = 0, n_branch = 0, n_abnormal_call = 0, n_sibcall = 0;
       int n_eh = 0, n_abnormal = 0;
@@ -2586,7 +2586,7 @@ rtl_verify_bb_insns (void)
   int err = 0;
   basic_block bb;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       /* Now check the header of basic
 	 block.  It ought to contain optional CODE_LABEL followed
@@ -2649,7 +2649,7 @@ rtl_verify_bb_pointers (void)
   basic_block bb;
 
   /* Check the general integrity of the basic blocks.  */
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       rtx insn;
 
@@ -2739,7 +2739,7 @@ rtl_verify_bb_insn_chain (void)
 
   bb_info = XCNEWVEC (basic_block, max_uid);
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       rtx head = BB_HEAD (bb);
       rtx end = BB_END (bb);
@@ -2821,7 +2821,7 @@ rtl_verify_fallthru (void)
   basic_block bb;
   int err = 0;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       edge e;
 
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
index a837974..99bc094 100644
--- a/gcc/config/ia64/ia64.c
+++ b/gcc/config/ia64/ia64.c
@@ -9613,7 +9613,7 @@ emit_predicate_relation_info (void)
 {
   basic_block bb;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       int r;
       rtx head = BB_HEAD (bb);
@@ -9641,7 +9641,7 @@ emit_predicate_relation_info (void)
      relations around them.  Otherwise the assembler will assume the call
      returns, and complain about uses of call-clobbered predicates after
      the call.  */
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       rtx insn = BB_HEAD (bb);
 
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 3e907b2..26c8957 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -11110,7 +11110,7 @@ sh_md_init_global (FILE *dump ATTRIBUTE_UNUSED,
   regmode_weight[1] = (short *) xcalloc (old_max_uid, sizeof (short));
   r0_life_regions = 0;
 
-  FOR_EACH_BB_REVERSE (b)
+  FOR_EACH_BB_REVERSE_FN (b, cfun)
   {
     find_regmode_weight (b, SImode);
     find_regmode_weight (b, SFmode);
diff --git a/gcc/dce.c b/gcc/dce.c
index 3101102..843dfc6 100644
--- a/gcc/dce.c
+++ b/gcc/dce.c
@@ -511,7 +511,7 @@ reset_unmarked_insns_debug_uses (void)
   basic_block bb;
   rtx insn, next;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     FOR_BB_INSNS_REVERSE_SAFE (bb, insn, next)
       if (DEBUG_INSN_P (insn))
 	{
@@ -550,7 +550,7 @@ delete_unmarked_insns (void)
   rtx insn, next;
   bool must_clean = false;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     FOR_BB_INSNS_REVERSE_SAFE (bb, insn, next)
       if (NONDEBUG_INSN_P (insn))
 	{
diff --git a/gcc/dominance.c b/gcc/dominance.c
index 521b224..69816c1 100644
--- a/gcc/dominance.c
+++ b/gcc/dominance.c
@@ -357,7 +357,7 @@ calc_dfs_tree (struct dom_info *di, bool reverse)
       basic_block b;
       bool saw_unconnected = false;
 
-      FOR_EACH_BB_REVERSE (b)
+      FOR_EACH_BB_REVERSE_FN (b, cfun)
 	{
 	  if (EDGE_COUNT (b->succs) > 0)
 	    {
@@ -376,7 +376,7 @@ calc_dfs_tree (struct dom_info *di, bool reverse)
 
       if (saw_unconnected)
 	{
-	  FOR_EACH_BB_REVERSE (b)
+	  FOR_EACH_BB_REVERSE_FN (b, cfun)
 	    {
 	      basic_block b2;
 	      if (di->dfs_order[b->index])
diff --git a/gcc/final.c b/gcc/final.c
index f475d27..5526974 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1996,7 +1996,7 @@ final (rtx first, FILE *file, int optimize_p)
 
       /* There is no cfg for a thunk.  */
       if (!cfun->is_thunk)
-	FOR_EACH_BB_REVERSE (bb)
+	FOR_EACH_BB_REVERSE_FN (bb, cfun)
 	  {
 	    start_to_bb[INSN_UID (BB_HEAD (bb))] = bb;
 	    end_to_bb[INSN_UID (BB_END (bb))] = bb;
diff --git a/gcc/function.c b/gcc/function.c
index e00f583..e2d0e23 100644
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -6236,7 +6236,7 @@ thread_prologue_and_epilogue_insns (void)
 	    }
 	  /* Now duplicate the tails.  */
 	  if (!bitmap_empty_p (&bb_tail))
-	    FOR_EACH_BB_REVERSE (bb)
+	    FOR_EACH_BB_REVERSE_FN (bb, cfun)
 	      {
 		basic_block copy_bb, tbb;
 		rtx insert_point;
diff --git a/gcc/gcse.c b/gcc/gcse.c
index a6874ab..fdf0a57 100644
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -2829,7 +2829,7 @@ compute_code_hoist_vbeinout (void)
 
       /* We scan the blocks in the reverse order to speed up
 	 the convergence.  */
-      FOR_EACH_BB_REVERSE (bb)
+      FOR_EACH_BB_REVERSE_FN (bb, cfun)
 	{
 	  if (bb->next_bb != EXIT_BLOCK_PTR_FOR_FN (cfun))
 	    {
diff --git a/gcc/ira.c b/gcc/ira.c
index b4ae0ca..7403870 100644
--- a/gcc/ira.c
+++ b/gcc/ira.c
@@ -3772,7 +3772,7 @@ update_equiv_regs (void)
      within the same loop (or in an inner loop), then move the register
      initialization just before the use, so that they are in the same
      basic block.  */
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       loop_depth = bb_loop_depth (bb);
       for (insn = BB_END (bb);
@@ -4127,7 +4127,7 @@ build_insn_chain (void)
   for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
     if (TEST_HARD_REG_BIT (eliminable_regset, i))
       bitmap_set_bit (elim_regset, i);
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       bitmap_iterator bi;
       rtx insn;
diff --git a/gcc/lcm.c b/gcc/lcm.c
index 0b528d9..b5d56e0 100644
--- a/gcc/lcm.c
+++ b/gcc/lcm.c
@@ -109,7 +109,7 @@ compute_antinout_edge (sbitmap *antloc, sbitmap *transp, sbitmap *antin,
 
   /* Put every block on the worklist; this is necessary because of the
      optimistic initialization of ANTIN above.  */
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       *qin++ = bb;
       bb->aux = bb;
diff --git a/gcc/mode-switching.c b/gcc/mode-switching.c
index 4e31d68..4f68536 100644
--- a/gcc/mode-switching.c
+++ b/gcc/mode-switching.c
@@ -692,7 +692,7 @@ optimize_mode_switching (void)
 	      insert_insn_on_edge (mode_set, eg);
 	    }
 
-	  FOR_EACH_BB_REVERSE (bb)
+	  FOR_EACH_BB_REVERSE_FN (bb, cfun)
 	    if (bitmap_bit_p (del[bb->index], j))
 	      {
 		make_preds_opaque (bb, j);
@@ -712,7 +712,7 @@ optimize_mode_switching (void)
     {
       int no_mode = num_modes[entity_map[j]];
 
-      FOR_EACH_BB_REVERSE (bb)
+      FOR_EACH_BB_REVERSE_FN (bb, cfun)
 	{
 	  struct seginfo *ptr, *next;
 	  for (ptr = bb_info[j][bb->index].seginfo; ptr; ptr = next)
diff --git a/gcc/postreload.c b/gcc/postreload.c
index bfa5a38..37bd9ff 100644
--- a/gcc/postreload.c
+++ b/gcc/postreload.c
@@ -1281,7 +1281,7 @@ reload_combine (void)
   label_live = XNEWVEC (HARD_REG_SET, n_labels);
   CLEAR_HARD_REG_SET (ever_live_at_start);
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       insn = BB_HEAD (bb);
       if (LABEL_P (insn))
diff --git a/gcc/recog.c b/gcc/recog.c
index c59aa0e..dbd9a8a 100644
--- a/gcc/recog.c
+++ b/gcc/recog.c
@@ -2902,7 +2902,7 @@ split_all_insns (void)
   bitmap_clear (blocks);
   changed = false;
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       rtx insn, next;
       bool finish = false;
@@ -3556,7 +3556,7 @@ peephole2_optimize (void)
   search_ofs = 0;
   live = BITMAP_ALLOC (&reg_obstack);
 
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     {
       bool past_end = false;
       int pos;
diff --git a/gcc/tree-ssa-live.c b/gcc/tree-ssa-live.c
index da7198b..a37ef85 100644
--- a/gcc/tree-ssa-live.c
+++ b/gcc/tree-ssa-live.c
@@ -1050,7 +1050,7 @@ live_worklist (tree_live_info_p live)
 
   /* Visit all the blocks in reverse order and propagate live on entry values
      into the predecessors blocks.  */
-  FOR_EACH_BB_REVERSE (bb)
+  FOR_EACH_BB_REVERSE_FN (bb, cfun)
     loe_visit_block (live, bb, visited, tmp);
 
   /* Process any blocks which require further iteration.  */
-- 
1.7.11.7