llvm::FunctionLoweringInfo::StatepointSpillMap Struct Reference

Keep track of frame indices allocated for statepoints as they could be used across basic block boundaries. More...

#include "llvm/CodeGen/FunctionLoweringInfo.h"

Collaboration diagram for llvm::FunctionLoweringInfo::StatepointSpillMap:

Public Types
using	SlotMapTy = DenseMap< const Value *, Optional< int > >

Public Member Functions
SlotMapTy::const_iterator	find (const Value *V) const
SlotMapTy::const_iterator	end () const

Public Attributes
SlotMapTy	SlotMap
	Maps uniqued llvm IR values to the slots they were spilled in. More...
DenseMap< const Value *, const Value * >	DuplicateMap
	Maps llvm IR values to the values they were de-duplicated to. More...

Detailed Description

Keep track of frame indices allocated for statepoints as they could be used across basic block boundaries.

This struct is more complex than a simple map because the stateopint lowering code de-duplicates gc pointers based on their SDValue (so p and (bitcast p to T) will get the same slot), and we track that here.

Definition at line 141 of file FunctionLoweringInfo.h.

Member Typedef Documentation

SlotMapTy

using llvm::FunctionLoweringInfo::StatepointSpillMap::SlotMapTy = DenseMap<const Value *, Optional<int> >

Definition at line 142 of file FunctionLoweringInfo.h.

Member Function Documentation

end()

SlotMapTy::const_iterator llvm::FunctionLoweringInfo::StatepointSpillMap::end ( ) const

inline

Definition at line 159 of file FunctionLoweringInfo.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end().

find()

SlotMapTy::const_iterator llvm::FunctionLoweringInfo::StatepointSpillMap::find ( const Value *  V ) const

inline

Definition at line 152 of file FunctionLoweringInfo.h.

References llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT, BucketT >, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and llvm::DenseMapBase< DenseMap< KeyT, ValueT, KeyInfoT, BucketT >, KeyT, ValueT, KeyInfoT, BucketT >::find().

Member Data Documentation

DuplicateMap

DenseMap<const Value *, const Value *> llvm::FunctionLoweringInfo::StatepointSpillMap::DuplicateMap

Maps llvm IR values to the values they were de-duplicated to.

Definition at line 150 of file FunctionLoweringInfo.h.

Referenced by removeDuplicateGCPtrs().

SlotMap

SlotMapTy llvm::FunctionLoweringInfo::StatepointSpillMap::SlotMap

Maps uniqued llvm IR values to the slots they were spilled in.

If a value is mapped to None it means we visited the value but didn't spill it (because it was a constant, for instance).

Definition at line 147 of file FunctionLoweringInfo.h.

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The documentation for this struct was generated from the following file:

• include/llvm/CodeGen/FunctionLoweringInfo.h