llvm::AttrBuilder

Synopsis

Declared in <llvm/IR/Attributes.h>

class AttrBuilder;

Description

This class is used in conjunction with the Attribute::get method to create an Attribute object. The object itself is uniquified. The Builder's value, however, is not. So this can be used as a quick way to test for equality, presence of attributes, etc.

Member Functions

Name	Description
`AttrBuilder` [constructor]	Constructors
`addAlignmentAttr`	`addAlignmentAttr` overloads
`addAllocKindAttr`	Encode an `alloc_kind` attribute from the given allocator-function kind.
`addAllocSizeAttr`	This turns one (or two) ints into the form used internally in Attribute.
`addAllocSizeAttrFromRawRepr`	Add an allocsize attribute, using the representation returned by Attribute.getIntValue().
`addAttribute`	`addAttribute` overloads
`addByRefAttr`	This turns a byref type into the form used internally in Attribute.
`addByValAttr`	This turns a byval type into the form used internally in Attribute.
`addCapturesAttr`	Add captures attribute.
`addConstantRangeAttr`	Add a ConstantRange attribute with the given range.
`addConstantRangeListAttr`	Add a ConstantRangeList attribute with the given ranges.
`addDeadOnReturnAttr`	This turns the number of dead_on_return bytes into the form used internally in Attribute.
`addDenormalFPEnvAttr`	Add denormal_fpenv attribute.
`addDereferenceableAttr`	This turns the number of dereferenceable bytes into the form used internally in Attribute.
`addDereferenceableOrNullAttr`	This turns the number of dereferenceable_or_null bytes into the form used internally in Attribute.
`addFromEquivalentMetadata`	Add parameter attributes equivalent to metadata on instruction `I.`
`addInAllocaAttr`	This turns an inalloca type into the form used internally in Attribute.
`addInitializesAttr`	Add initializes attribute.
`addMemoryAttr`	Add memory effect attribute.
`addNoFPClassAttr`	Add a `nofpclass` attribute excluding classes in `NoFPClassMask.`
`addPreallocatedAttr`	This turns a preallocated type into the form used internally in Attribute.
`addRangeAttr`	Add range attribute.
`addRawIntAttr`	Add integer attribute with raw value (packed/encoded if necessary).
`addStackAlignmentAttr`	`addStackAlignmentAttr` overloads
`addStructRetAttr`	This turns a sret type into the form used internally in Attribute.
`addTypeAttr`	Add a type attribute with the given type.
`addUWTableAttr`	This turns the unwind table kind into the form used internally in Attribute.
`addVScaleRangeAttr`	This turns two ints into the form used internally in Attribute.
`addVScaleRangeAttrFromRawRepr`	Add a vscale_range attribute, using the representation returned by Attribute.getIntValue().
`attrs`	Return the attributes currently stored in this builder.
`clear`	Remove all attributes from the builder.
`contains`	`contains` overloads
`getAlignment`	Retrieve the alignment attribute, if it exists.
`getAllocSizeArgs`	Retrieve the allocsize args, or std::nullopt if the attribute does not exist.
`getAttribute`	Return Attribute with the given Kind. The returned attribute will be invalid if the Kind is not present in the builder.
`getByRefType`	Retrieve the byref type.
`getByValType`	Retrieve the byval type.
`getDereferenceableBytes`	Retrieve the number of dereferenceable bytes, if the dereferenceable attribute exists (zero is returned otherwise).
`getDereferenceableOrNullBytes`	Retrieve the number of dereferenceable_or_null bytes, if the dereferenceable_or_null attribute exists (zero is returned otherwise).
`getInAllocaType`	Retrieve the inalloca type.
`getNoFPClass`	Retrieve the bitmask for nofpclass, if the nofpclass attribute exists (fcNone is returned otherwise).
`getPreallocatedType`	Retrieve the preallocated type.
`getRange`	Retrieve the range if the attribute exists (std::nullopt is returned otherwise).
`getRawIntAttr`	Return raw (possibly packed/encoded) value of integer attribute or std::nullopt if not set.
`getStackAlignment`	Retrieve the stack alignment attribute, if it exists.
`getStructRetType`	Retrieve the sret type.
`getTypeAttr`	Retrieve type for the given type attribute.
`hasAttributes`	Return true if the builder has IR-level attributes.
`merge`	Add the attributes from the builder. Attributes in the passed builder overwrite attributes in this builder if they have the same key.
`overlaps`	Return true if the builder has any attribute that's in the specified builder.
`remove`	Remove the attributes from the builder.
`removeAttribute`	`removeAttribute` overloads
`operator==`	Return true if this builder's attributes equal those in `B.`
`operator!=`	Return true if this builder's attribute set differs from `B.`

Non-Member Functions

Name	Description
`UpgradeAttributes`	Upgrade attributes that changed format or kind.
`codegen::renderBoolStringAttr`	Add a boolean string attribute named `Name` with value `Val` to `B.`