[#llvm-GetPointerBaseWithConstantOffset-08]
= xref:llvm.adoc[llvm]::GetPointerBaseWithConstantOffset
:relfileprefix: ../
:mrdocs:

`GetPointerBaseWithConstantOffset` overloads

== Synopses

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

Analyze the specified pointer to see if it can be expressed as a base pointer plus a constant offset. Return the base and offset to the caller.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/Value.adoc[Value]*
xref:llvm/GetPointerBaseWithConstantOffset-038.adoc[GetPointerBaseWithConstantOffset](
    xref:llvm/Value.adoc[Value]* Ptr,
    int64_t& Offset,
    xref:llvm/DataLayout.adoc[DataLayout] const& DL,
    bool AllowNonInbounds = true);
----

[.small]#xref:llvm/GetPointerBaseWithConstantOffset-038.adoc[_» more..._]#

Const overload of GetPointerBaseWithConstantOffset.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/Value.adoc[Value] const*
xref:llvm/GetPointerBaseWithConstantOffset-039.adoc[GetPointerBaseWithConstantOffset](
    xref:llvm/Value.adoc[Value] const* Ptr,
    int64_t& Offset,
    xref:llvm/DataLayout.adoc[DataLayout] const& DL,
    bool AllowNonInbounds = true);
----

[.small]#xref:llvm/GetPointerBaseWithConstantOffset-039.adoc[_» more..._]#

== Return Value

Base pointer after stripping constant offsets.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *Ptr*
| Pointer to decompose into base plus offset.
| *Offset*
| Output constant offset from the returned base.
| *DL*
| Data layout used for pointer index sizes.
| *AllowNonInbounds*
| Whether non‐inbounds GEPs may contribute offsets.
|===


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