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

A utility pass that does nothing, but preserves no analyses.

== Synopsis

Declared in `<llvm/IR/PassManager.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct InvalidateAllAnalysesPass
    : xref:llvm/OptionalPassInfoMixin-0246.adoc[OptionalPassInfoMixin<InvalidateAllAnalysesPass>]
----

== Description

Because this preserves no analyses, any analysis passes queried after this pass runs will recompute fresh results.

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:llvm/OptionalPassInfoMixin-0246.adoc[OptionalPassInfoMixin<InvalidateAllAnalysesPass>]`
| A CRTP mix‐in for passes that can be skipped.
|===

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/InvalidateAllAnalysesPass/run.adoc[`run`] 
| Run this pass over some unit of IR.
|===


== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/InvalidateAllAnalysesPass/isRequired.adoc[`isRequired`] 
| Return false; optional passes may be skipped.
|===



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