[#llvm-shouldOptimizeForSize-0d]
= xref:llvm.adoc[llvm]::shouldOptimizeForSize
:relfileprefix: ../
:mrdocs:

Returns true if machine function `MF` is suggested to be size‐optimized based on the profile.

== Synopsis

Declared in `<llvm/CodeGen/MachineSizeOpts.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
shouldOptimizeForSize(
    xref:llvm/MachineFunction.adoc[MachineFunction] const* MF,
    xref:llvm/ProfileSummaryInfo.adoc[ProfileSummaryInfo]* PSI,
    xref:llvm/MachineBlockFrequencyInfo.adoc[MachineBlockFrequencyInfo] const* BFI,
    xref:llvm/PGSOQueryType.adoc[PGSOQueryType] QueryType = PGSOQueryType::Other);
----

== Return Value

True if `MF` is suggested to be size‐optimized.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *MF*
| The machine function to consider for size optimization.
| *PSI*
| Profile summary information used to classify hot/cold code.
| *BFI*
| Machine block frequency information for `MF.`
| *QueryType*
| The caller context of this size‐optimization query.
|===


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