Insertion point at the beginning or end of a basic block. More...
#include "llvm/CodeGen/GlobalISel/RegBankSelect.h"
Public Member Functions | |
| MBBInsertPoint (MachineBasicBlock &MBB, bool Beginning=true) | |
| bool | isSplit () const override |
| 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. More... | |
| uint64_t | frequency (const Pass &P) const override |
| Frequency of the insertion point. More... | |
| bool | canMaterialize () const override |
| Check whether this insertion point can be materialized. More... | |
 Public Member Functions inherited from llvm::RegBankSelect::InsertPoint | |
| virtual | ~InsertPoint ()=default |
| MachineBasicBlock::iterator | getPoint () |
| The first call to this method will cause the splitting to happen if need be, then sub sequent calls just return the iterator to that point. More... | |
| MachineBasicBlock & | getInsertMBB () |
| The first call to this method will cause the splitting to happen if need be, then sub sequent calls just return the basic block that contains the insertion point. More... | |
| MachineBasicBlock::iterator | insert (MachineInstr &MI) |
Insert MI in the just before ::getPoint() More... | |
Additional Inherited Members | |
| Protected Attributes inherited from llvm::RegBankSelect::InsertPoint | |
| bool | WasMaterialized = false |
| Tell if the insert point has already been materialized. More... | |
Detailed Description
Insertion point at the beginning or end of a basic block.
Definition at line 237 of file RegBankSelect.h.
Constructor & Destructor Documentation
◆ MBBInsertPoint()
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inline |
Definition at line 255 of file RegBankSelect.h.
References assert(), llvm::MachineBasicBlock::begin(), llvm::MachineBasicBlock::end(), llvm::MachineBasicBlock::getFirstNonPHI(), and llvm::MachineBasicBlock::getFirstTerminator().
Member Function Documentation
◆ canMaterialize()
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inlineoverridevirtual |
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.
Reimplemented from llvm::RegBankSelect::InsertPoint.
Definition at line 269 of file RegBankSelect.h.
◆ frequency()
Frequency of the insertion point.
P is used to access the various analysis that will help to get that information, like MachineBlockFrequencyInfo. If P does not contain enough enough to return the actual frequency, this returns 1.
Reimplemented from llvm::RegBankSelect::InsertPoint.
Definition at line 824 of file RegBankSelect.cpp.
References assert(), llvm::Pass::getAnalysisIfAvailable(), llvm::MachineBlockFrequencyInfo::getBlockFreq(), llvm::BlockFrequency::getFrequency(), P, and llvm::MachineBasicBlock::SplitCriticalEdge().
◆ isSplit()
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inlineoverridevirtual |
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.
Reimplemented from llvm::RegBankSelect::InsertPoint.
Definition at line 267 of file RegBankSelect.h.
References llvm::RegBankSelect::InsertPoint::frequency(), and P.
The documentation for this class was generated from the following files:
- include/llvm/CodeGen/GlobalISel/RegBankSelect.h
- lib/CodeGen/GlobalISel/RegBankSelect.cpp
