[#llvm-StaticDataProfileInfo]
= xref:llvm.adoc[llvm]::StaticDataProfileInfo
:relfileprefix: ../
:mrdocs:

A class that holds the constants that represent static data and their profile information and provides methods to operate on them.

== Synopsis

Declared in `<llvm/Analysis/StaticDataProfileInfo.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class StaticDataProfileInfo;
----

== Enums

[cols="1,4"]
|===
| Name| Description
| xref:llvm/StaticDataProfileInfo/StaticDataHotness.adoc[`StaticDataHotness`] 
| Use signed enums for enum value comparison, and make 'LukewarmOrUnknown' as 0 so any accidentally uninitialized value will default to unknown.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/StaticDataProfileInfo/2constructor.adoc[`StaticDataProfileInfo`]         [.small]#[constructor]#
| Construct StaticDataProfileInfo with data‐access profile combining `EnableDataAccessProf.`
| xref:llvm/StaticDataProfileInfo/addConstantProfileCount.adoc[`addConstantProfileCount`] 
| Add or clear the profile count for constant `C.`
| xref:llvm/StaticDataProfileInfo/getConstantHotnessUsingProfileCount.adoc[`getConstantHotnessUsingProfileCount`] 
| Return the hotness of the constant `C` based on its profile count `Count.`
| xref:llvm/StaticDataProfileInfo/getConstantProfileCount.adoc[`getConstantProfileCount`] 
| If `C` has a count, return it. Otherwise, return std::nullopt.
| xref:llvm/StaticDataProfileInfo/getConstantSectionPrefix.adoc[`getConstantSectionPrefix`] 
| Return a section prefix for constant `C` based on profile data.
| xref:llvm/StaticDataProfileInfo/getSectionHotnessUsingDataAccessProfile.adoc[`getSectionHotnessUsingDataAccessProfile`] 
| Return the hotness based on section prefix `SectionPrefix.`
| xref:llvm/StaticDataProfileInfo/hotnessToStr.adoc[`hotnessToStr`] 
| Return the string representation of the hotness enum `Hotness.`
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:llvm/StaticDataProfileInfo/ConstantProfileCounts.adoc[`ConstantProfileCounts`] 
| Maps tracked constants to their accumulated profile counts.
| xref:llvm/StaticDataProfileInfo/ConstantWithoutCounts.adoc[`ConstantWithoutCounts`] 
| Keeps track of the constants that are seen at least once without profile counts.
| xref:llvm/StaticDataProfileInfo/EnableDataAccessProf.adoc[`EnableDataAccessProf`] 
| When true, combine data‐access profile hotness with PGO counts for section prefixes.
|===



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