From: Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
Date: Sun, 11 May 2003 22:54:33 +0000 (+0200)
Subject: cfgloopanal.c (num_loop_insns, [...]): Count only real insns.
X-Git-Tag: releases/gcc-3.4.0~6655
X-Git-Url: https://gcc.gnu.org/git/?a=commitdiff_plain;h=91f4cfe34425362425867d896bcb831df6926580;p=gcc.git

cfgloopanal.c (num_loop_insns, [...]): Count only real insns.

	* cfgloopanal.c (num_loop_insns, average_num_loop_insns): Count only
	real insns.
	* loop-unroll.c (unroll_loop_runtime_iterations): Remove superfluous
	condition.

From-SVN: r66700
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 310984e6421c..da8a280c1004 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2003-05-12  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
+
+	* cfgloopanal.c (num_loop_insns, average_num_loop_insns): Count only
+	real insns.
+	* loop-unroll.c (unroll_loop_runtime_iterations): Remove superfluous
+	condition.
+
 2003-05-11  Neil Booth  <neil@cat.daikokuya.co.uk>
 
 	* doc/cpp.texi: Fix typos.
diff --git a/gcc/cfgloopanal.c b/gcc/cfgloopanal.c
index 0843a006acbc..c3ef5a30739a 100644
--- a/gcc/cfgloopanal.c
+++ b/gcc/cfgloopanal.c
@@ -1033,7 +1033,8 @@ num_loop_insns (loop)
       bb = bbs[i];
       ninsns++;
       for (insn = bb->head; insn != bb->end; insn = NEXT_INSN (insn))
-	ninsns++;
+	if (INSN_P (insn))
+	  ninsns++;
     }
   free(bbs);
   
@@ -1057,7 +1058,8 @@ average_num_loop_insns (loop)
 
       binsns = 1;
       for (insn = bb->head; insn != bb->end; insn = NEXT_INSN (insn))
-	binsns++;
+	if (INSN_P (insn))
+	  binsns++;
 
       ratio = loop->header->frequency == 0
 	      ? BB_FREQ_MAX
diff --git a/gcc/loop-unroll.c b/gcc/loop-unroll.c
index efecd4d27d48..e8509de774ff 100644
--- a/gcc/loop-unroll.c
+++ b/gcc/loop-unroll.c
@@ -878,36 +878,33 @@ unroll_loop_runtime_iterations (loops, loop)
 		DLTHE_FLAG_UPDATE_FREQ))
     	abort ();
 
-      if (i != n_peel)
-	{
-	  /* Create item for switch.  */
-	  j = n_peel - i - (extra_zero_check ? 0 : 1);
-	  p = REG_BR_PROB_BASE / (i + 2);
-
-	  preheader = loop_split_edge_with (loop_preheader_edge (loop),
-					    NULL_RTX, loops);
-	  label = block_label (preheader);
-	  start_sequence ();
-	  do_compare_rtx_and_jump (copy_rtx (niter), GEN_INT (j), EQ, 0,
-		    		   GET_MODE (desc->var), NULL_RTX, NULL_RTX,
-				   label);
-	  jump = get_last_insn ();
-	  JUMP_LABEL (jump) = label;
-	  REG_NOTES (jump)
-		  = gen_rtx_EXPR_LIST (REG_BR_PROB,
-			    	       GEN_INT (p), REG_NOTES (jump));
+      /* Create item for switch.  */
+      j = n_peel - i - (extra_zero_check ? 0 : 1);
+      p = REG_BR_PROB_BASE / (i + 2);
+
+      preheader = loop_split_edge_with (loop_preheader_edge (loop),
+					NULL_RTX, loops);
+      label = block_label (preheader);
+      start_sequence ();
+      do_compare_rtx_and_jump (copy_rtx (niter), GEN_INT (j), EQ, 0,
+			       GET_MODE (desc->var), NULL_RTX, NULL_RTX,
+			       label);
+      jump = get_last_insn ();
+      JUMP_LABEL (jump) = label;
+      REG_NOTES (jump)
+	      = gen_rtx_EXPR_LIST (REG_BR_PROB,
+				   GEN_INT (p), REG_NOTES (jump));
 	
-	  LABEL_NUSES (label)++;
-	  branch_code = get_insns ();
-	  end_sequence ();
-
-	  swtch = loop_split_edge_with (swtch->pred, branch_code, loops);
-	  set_immediate_dominator (loops->cfg.dom, preheader, swtch);
-	  swtch->succ->probability = REG_BR_PROB_BASE - p;
-	  e = make_edge (swtch, preheader,
-			 swtch->succ->flags & EDGE_IRREDUCIBLE_LOOP);
-	  e->probability = p;
-	}
+      LABEL_NUSES (label)++;
+      branch_code = get_insns ();
+      end_sequence ();
+
+      swtch = loop_split_edge_with (swtch->pred, branch_code, loops);
+      set_immediate_dominator (loops->cfg.dom, preheader, swtch);
+      swtch->succ->probability = REG_BR_PROB_BASE - p;
+      e = make_edge (swtch, preheader,
+		     swtch->succ->flags & EDGE_IRREDUCIBLE_LOOP);
+      e->probability = p;
     }
 
   if (extra_zero_check)