tree-ssa-tail-merge.c (replace_block_by): Update bb2 profile count.

2012-11-08  Christian Bruel  <christian.bruel@st.com>

	* tree-ssa-tail-merge.c (replace_block_by): Update bb2 profile count.
	Do not reset dead bb1->frequency.

From-SVN: r193350

gcc/ChangeLog

+2012-11-08  Christian Bruel  <christian.bruel@st.com>
+
+	* tree-ssa-tail-merge.c (replace_block_by): Update bb2 profile count.
+	Do not reset dead bb1->frequency.
+
 2012-11-08  Steven Bosscher  <steven@gcc.gnu.org>
 
 	PR tree-optimization/55191
@@ -50,6 +55,7 @@
 	* ipa-prop.c (determine_known_aggregate_parts): Skip writes to
 	different declarations when tracking writes to a declaration.
 
+>>>>>>> .r193349
 2012-11-07  David S. Miller  <davem@davemloft.net>
 
 	* config/sparc/constraints.md ("U"): Document, in detail,

gcc/tree-ssa-tail-merge.c

@@ -1488,7 +1488,8 @@ replace_block_by (basic_block bb1, basic_block bb2)
   bb2->frequency += bb1->frequency;
   if (bb2->frequency > BB_FREQ_MAX)
     bb2->frequency = BB_FREQ_MAX;
-  bb1->frequency = 0;
+
+  bb2->count += bb1->count;
 
   /* Do updates that use bb1, before deleting bb1.  */
   release_last_vdef (bb1);