[#llvm-addStringMetadataToLoop-00]
= xref:llvm.adoc[llvm]::addStringMetadataToLoop
:relfileprefix: ../
:mrdocs:

`addStringMetadataToLoop` overloads

== Synopses

Declared in `<llvm/Transforms/Utils/LoopUtils.h>`

Add a name‐only metadata string to a loop, if not already present.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
xref:llvm/addStringMetadataToLoop-068.adoc[addStringMetadataToLoop](
    xref:llvm/Loop.adoc[Loop]* TheLoop,
    xref:llvm/StringRef.adoc[StringRef] MDString);
----

[.small]#xref:llvm/addStringMetadataToLoop-068.adoc[_» more..._]#

Set input string into loop metadata by keeping other values intact. If the string is already in loop metadata update value if it is different.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
xref:llvm/addStringMetadataToLoop-06e.adoc[addStringMetadataToLoop](
    xref:llvm/Loop.adoc[Loop]* TheLoop,
    char const* MDString,
    unsigned int V = 0);
----

[.small]#xref:llvm/addStringMetadataToLoop-06e.adoc[_» more..._]#

== Parameters

[cols="1,4"]
|===
| Name| Description
| *TheLoop*
| Loop whose metadata is updated.
| *MDString*
| Name‐only metadata string to add.
| *V*
| Integer operand stored with `MDString.`
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#