class RegBankSelect::InstrInsertPoint

Declaration

class RegBankSelect::InstrInsertPoint : public InsertPoint { /* full declaration omitted */ };

Description

Insertion point before or after an instruction.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:204

Inherits from: RegBankSelect::InsertPoint

Member Variables

private llvm::MachineInstr& Instr

Insertion point.

private bool Before

Does the insertion point is before or after Instr.

Inherited from RegBankSelect::InsertPoint:

protected WasMaterialized = false

Method Overview

• public InstrInsertPoint(llvm::MachineInstr & Instr, bool Before = 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

¶InstrInsertPoint(llvm::MachineInstr& Instr,
                 bool Before = true)

Description

Create an insertion point before (\p Before=true) or after \p Instr.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/RegBankSelect.h:227

Parameters

llvm::MachineInstr& Instr

bool Before = true

¶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:233

¶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:230

Parameters

const llvm::Pass& P

¶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:221

¶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:214

¶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:229

¶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:212