Garbage collection metadata for a single function. Currently, this information only applies to GCStrategies which use GCRoot.

Synopsis

Declared in <llvm/CodeGen/GCMetadata.h>

class GCFunctionInfo;

Type Aliases

Name

Description

iterator

Iterator over safe points in this function.

live_iterator

Const iterator over roots treated as live at a safe point.

roots_iterator

Iterator over all GC roots in this function.

Member Functions

Name

Description

GCFunctionInfo [constructor]

Construct GC metadata for function F using strategy S.

~GCFunctionInfo [destructor]

Destroy this function's GC metadata.

addSafePoint

addSafePoint ‐ Notes the existence of a safe point. Num is the ID of the label just prior to the safe point (if the code generator is using MachineModuleInfo).

addStackRoot

Register a root that lives on the stack.

begin

begin/end ‐ Iterators for safe points.

end

Return an iterator past the last safe point.

getFrameSize

getFrameSize/setFrameSize ‐ Records the function's frame size.

getFunction

getFunction ‐ Return the function to which this metadata applies.

getStrategy

getStrategy ‐ Return the GC strategy for the function.

invalidate

Handle invalidation explicitly.

live_begin

live_begin/live_end ‐ Iterators for live roots at a given safe point.

live_end

Return an iterator past the last live root at safe point p.

live_size

Return the number of live roots at safe point p.

removeStackRoot

removeStackRoot ‐ Removes a root.

roots_begin

roots_begin/roots_end ‐ Iterators for all roots in the function.

roots_end

Return an iterator past the last root in the function.

roots_size

Return the number of roots in the function.

setFrameSize

Record the function's frame size in bytes.

size

Return the number of safe points in this function.

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