diff --git a/gcc/profile-count.h b/gcc/profile-count.h
index f4d0c340a0a..4289bc5a004 100644
--- a/gcc/profile-count.h
+++ b/gcc/profile-count.h
@@ -200,11 +200,11 @@ public:
ret.m_quality = profile_guessed;
return ret;
}
- static profile_probability always ()
+ static profile_probability always (enum profile_quality q = profile_precise)
There are functions to convert value into given precision. If you wnat
to guess that something is always taken, you write
profile_probability::always().guessed ()
So for autofdo we only need to add .atofdo() conversion method.
@@ -459,10 +459,12 @@ public:
return RDIV (val * m_val, max_probability);
}
- /* Return 1-*THIS. */
+ /* Return 1-*THIS. It's meaningless to invert an uninitialized value. */
profile_probability invert () const
{
- return profile_probability::always() - *this;
+ if (! initialized_p ())
+ return *this;
+ return profile_probability::always (m_quality) - *this;
How this changes the behaviour? If THIS is uninitialied
profile_probability::alwyas() will return uninitialized which seem
to make sense.
If you have value of some quality it will merge the qualitis
and will return value in corresponding m_quality.
