profile-count: fix /= and *= operators

	PR middle-end/106059

gcc/ChangeLog:

	* profile-count.h: *= and /= operators need to modify this
	object.

Author: marxin

gcc/profile-count.h

@@ -605,19 +605,21 @@ class GTY((user)) profile_probability
       return apply_scale (num, 1);
     }
 
-  profile_probability operator*= (int64_t den) const
+  profile_probability operator*= (int64_t num)
     {
-      return *this * den;
+      *this = apply_scale (num, 1);
+      return *this;
     }
 
   profile_probability operator/ (int64_t den) const
     {
       return apply_scale (1, den);
     }
 
-  profile_probability operator/= (int64_t den) const
+  profile_probability operator/= (int64_t den)
     {
-      return *this / den;
+      *this = apply_scale (1, den);
+      return *this;
     }
 
   /* Get the value of the count.  */
@@ -1017,19 +1019,21 @@ struct GTY(()) profile_count
       return apply_scale (num, 1);
     }
 
-  profile_count operator*= (int64_t den) const
+  profile_count operator*= (int64_t num)
     {
-      return *this * den;
+      *this = apply_scale (num, 1);
+      return *this;
     }
 
   profile_count operator/ (int64_t den) const
     {
       return apply_scale (1, den);
     }
 
-  profile_count operator/= (int64_t den) const
+  profile_count operator/= (int64_t den)
     {
-      return *this / den;
+      *this = apply_scale (1, den);
+      return *this;
     }
 
   /* Return true when value is not zero and can be used for scaling.