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

Create a vector reduction for recurrence kind `RdxKind.`

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:llvm/Value.adoc[Value]*
createSimpleReduction(
    xref:llvm/IRBuilderBase.adoc[IRBuilderBase]& B,
    xref:llvm/Value.adoc[Value]* Src,
    xref:llvm/RecurKind.adoc[RecurKind] RdxKind);
----

== Description

Create a reduction of the given vector. The reduction operation is described by the `Opcode` parameter. min/max reductions require additional information supplied in `RdxKind.` Fast‐math‐flags are propagated using the IRBuilder's setting.

== Return Value

The reduction result.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *B*
| IR builder used to create the reduction.
| *Src*
| Vector value being reduced.
| *RdxKind*
| Recurrence kind describing the reduction.
|===


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