class RegBankSelect::MBBInsertPoint
Declaration
class RegBankSelect::MBBInsertPoint : public InsertPoint { /* full declaration omitted */ };
Description
Insertion point at the beginning or end of a basic block.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:237
Inherits from: RegBankSelect::InsertPoint
Member Variables
- private llvm::MachineBasicBlock& MBB
- Insertion point.
- private bool Beginning
- Does the insertion point is at the beginning or end of MBB.
Inherited from RegBankSelect::InsertPoint:
- protected WasMaterialized = false
Method Overview
- public MBBInsertPoint(llvm::MachineBasicBlock & MBB, bool Beginning = true)
- public bool canMaterialize() const
- public uint64_t frequency(const llvm::Pass & P) const
- private llvm::MachineBasicBlock & getInsertMBBImpl()
- private MachineBasicBlock::iterator getPointImpl()
- public bool isSplit() const
- private void materialize()
Inherited from RegBankSelect::InsertPoint:
- public canMaterialize
- public frequency
- public getInsertMBB
- protected getInsertMBBImpl
- public getPoint
- protected getPointImpl
- public insert
- public isSplit
- protected materialize
Methods
¶MBBInsertPoint(llvm::MachineBasicBlock& MBB,
bool Beginning = true)
MBBInsertPoint(llvm::MachineBasicBlock& MBB,
bool Beginning = true)
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:255
Parameters
- llvm::MachineBasicBlock& MBB
- bool Beginning = true
¶bool canMaterialize() const
bool canMaterialize() const
Description
Check whether this insertion point can be materialized. As soon as ::getPoint is called and thus, the point materialized calling this method does not make sense.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:269
¶uint64_t frequency(const llvm::Pass& P) const
uint64_t frequency(const llvm::Pass& P) const
Description
Frequency of the insertion point.\p P is used to access the various analysis that will help to get that information, like MachineBlockFrequencyInfo. If \p P does not contain enough enough to return the actual frequency, this returns 1.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:268
Parameters
- const llvm::Pass& P
¶llvm::MachineBasicBlock& getInsertMBBImpl()
llvm::MachineBasicBlock& getInsertMBBImpl()
Description
Return the materialized insertion basic block. Code will be inserted into that basic block.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:252
¶MachineBasicBlock::iterator getPointImpl()
MachineBasicBlock::iterator getPointImpl()
Description
Return the materialized insertion point. Code will be inserted before that point.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:248
¶bool isSplit() const
bool isSplit() const
Description
Does this point involve splitting an edge or block? As soon as ::getPoint is called and thus, the point materialized, the point will not require splitting anymore, i.e., this will return false.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:267
¶void materialize()
void materialize()
Description
Materialize the insertion point. If isSplit() is true, this involves actually splitting the block or edge.
Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:245