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

New PM pass that removes redundant DBG_VALUE instructions.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class RemoveRedundantDebugValuesPass
    : public xref:llvm/RequiredPassInfoMixin-047.adoc[RequiredPassInfoMixin<RemoveRedundantDebugValuesPass>]
----

== Description

Eliminates DBG_VALUEs that appear in MIR after register allocation when they are redundant with respect to earlier debug value information.

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:llvm/RequiredPassInfoMixin-047.adoc[RequiredPassInfoMixin<RemoveRedundantDebugValuesPass>]`
| A CRTP mix‐in for passes that should not be skipped.
|===

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/RemoveRedundantDebugValuesPass/run.adoc[`run`] 
| Remove redundant debug values in `MF.`
|===


== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/RemoveRedundantDebugValuesPass/isRequired.adoc[`isRequired`] 
| Return true; required passes cannot be skipped.
|===



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