Hi,
this is another case where we can save quite some sreal operations
(because it is common that call frequency is the same as entry block bb
frequency)
Bootstrapped/regtested x86_64-linux, comitted.
Honza
* profile-count.c (profile_count::to_sreal_scale): Short circuit
case where profiles are same.
Index: profile-count.c
===================================================================
--- profile-count.c (revision 278020)
+++ profile-count.c (working copy)
@@ -312,6 +312,8 @@ profile_count::to_sreal_scale (profile_c
*known = true;
if (*this == zero ())
return 0;
+ if (m_val == in.m_val)
+ return 1;
if (!in.m_val)
{
