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

Source operand accepted by MachineIRBuilder helpers.

== Synopsis

Declared in `<llvm/CodeGen/GlobalISel/MachineIRBuilder.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class SrcOp;
----

== Enums

[cols="1,4"]
|===
| Name| Description
| xref:llvm/SrcOp/SrcType.adoc[`SrcType`] 
| Discriminator for the active union member of a SrcOp.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:llvm/SrcOp/2constructor-006.adoc[`SrcOp`]         [.small]#[constructor]#
| Constructors
| xref:llvm/SrcOp/addSrcToMIB.adoc[`addSrcToMIB`] 
| Add this source as a use on `MIB.`
| xref:llvm/SrcOp/getImm.adoc[`getImm`] 
| Return the packed immediate value.
| xref:llvm/SrcOp/getLLTTy.adoc[`getLLTTy`] 
| Return the LLT of this register‐like source.
| xref:llvm/SrcOp/getPredicate.adoc[`getPredicate`] 
| Return the packed compare predicate.
| xref:llvm/SrcOp/getReg.adoc[`getReg`] 
| Return the source register.
| xref:llvm/SrcOp/getSrcOpKind.adoc[`getSrcOpKind`] 
| Return the discriminator for the active source representation.
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:llvm/SrcOp/Imm.adoc[`Imm`] [.small]#[variant member]#
| Packed immediate value.
| xref:llvm/SrcOp/Pred.adoc[`Pred`] [.small]#[variant member]#
| Packed compare predicate.
| xref:llvm/SrcOp/Reg.adoc[`Reg`] [.small]#[variant member]#
| Existing source register.
| xref:llvm/SrcOp/SrcMIB.adoc[`SrcMIB`] [.small]#[variant member]#
| Instruction whose first def is used as the source register.
|===



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