535
Lightweight
Profiling
May
Not
Indicate
Fused
Branch
Description
The
Lightweight
Profiling
(
LWP
)
fused
operation
bit
(
FUS
-
bit
28
of
the
branch
retired
event
record
,
LWP
EventId
3)
may
not
be
set
when
the
processor
core
is
profiling
a
fused
branch
(
a
compare
operation
followed
by
a
conditional
branch
that
is
executed
as
a
single
operation
internally
)
and
a
#
PF
or
nested-paging
exception
occurs
during
the
storing
of
the
event
.
Potential
Effect
on
System
Performance
monitoring
software
may
not
profile
a
fused
branch
correctly
.
Suggested
Workaround
None
.
Fix
Planned
Yes
48063
Rev
. 3.18
October
2012
Revision
Guide
for
AMD
Family
15
h
Models
00
h-
0
Fh
Processors
Product
Errata
29