From: Jan Hubicka <jh@suse.cz>
Date: Sat, 18 Sep 2004 21:54:53 +0000 (+0200)
Subject: * tree-cfg.c (thread_jumps):  Fix updating of the profile.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4d539f6875696be972076e00ff238acae97b4dcb;p=gcc.git

* tree-cfg.c (thread_jumps):  Fix updating of the profile.

From-SVN: r87709
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 64a20e65d9a..36183a7d5a5 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,7 @@
 2004-09-18  Jan Hubicka  <jh@suse.cz>
 
+	* tree-cfg.c (thread_jumps):  Fix updating of the profile.
+
 	* tree-optimize.c (tree_rest_of_compilation): Kill forgotten
 	verify_cgraph call.
 
diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index 69c8b2587f7..37b57102f63 100644
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -3832,7 +3832,7 @@ static bool
 thread_jumps (void)
 {
   edge e, next, last, old;
-  basic_block bb, dest, tmp, old_dest, dom;
+  basic_block bb, dest, tmp, old_dest, curr, dom;
   tree phi;
   int arg;
   bool retval = false;
@@ -3891,15 +3891,6 @@ thread_jumps (void)
 		break;
 
 	      bb_ann (dest)->forwardable = 0;
-	      dest->frequency -= freq;
-	      if (dest->frequency < 0)
-		dest->frequency = 0;
-	      dest->count -= count;
-	      if (dest->count < 0)
-		dest->count = 0;
-	      dest->succ->count -= count;
-	      if (dest->succ->count < 0)
-		dest->succ->count = 0;
 	    }
 
 	  /* Reset the forwardable marks to 1.  */
@@ -3936,6 +3927,21 @@ thread_jumps (void)
 	  old_dest = e->dest;
 	  e = redirect_edge_and_branch (e, dest);
 
+	  /* Update the profile.  */
+	  if (profile_status != PROFILE_ABSENT)
+	    for (curr = old_dest; curr != dest; curr = curr->succ->dest)
+	      {
+		curr->frequency -= freq;
+		if (curr->frequency < 0)
+		  curr->frequency = 0;
+		curr->count -= count;
+		if (curr->count < 0)
+		  curr->count = 0;
+		curr->succ->count -= count;
+		if (curr->succ->count < 0)
+		  curr->succ->count = 0;
+	      }
+
 	  if (!old)
 	    {
 	      /* Update PHI nodes.   We know that the new argument should