Various thresholds and options controlling the behavior of the profile inference algorithm. More...
#include "llvm/Transforms/Utils/SampleProfileInference.h"
Public Attributes | |
| bool | EvenFlowDistribution {false} |
| Evenly distribute flow when there are multiple equally likely options. | |
| bool | RebalanceUnknown {false} |
| Evenly re-distribute flow among unknown subgraphs. | |
| bool | JoinIslands {false} |
| Join isolated components having positive flow. | |
| unsigned | CostBlockInc {0} |
| The cost of increasing a block's count by one. | |
| unsigned | CostBlockDec {0} |
| The cost of decreasing a block's count by one. | |
| unsigned | CostBlockZeroInc {0} |
| The cost of increasing a count of zero-weight block by one. | |
| unsigned | CostBlockEntryInc {0} |
| The cost of increasing the entry block's count by one. | |
| unsigned | CostBlockEntryDec {0} |
| The cost of decreasing the entry block's count by one. | |
| unsigned | CostBlockUnknownInc {0} |
| The cost of increasing an unknown block's count by one. | |
| unsigned | CostJumpInc {0} |
| The cost of increasing a jump's count by one. | |
| unsigned | CostJumpFTInc {0} |
| The cost of increasing a fall-through jump's count by one. | |
| unsigned | CostJumpDec {0} |
| The cost of decreasing a jump's count by one. | |
| unsigned | CostJumpFTDec {0} |
| The cost of decreasing a fall-through jump's count by one. | |
| unsigned | CostJumpUnknownInc {0} |
| The cost of increasing an unknown jump's count by one. | |
| unsigned | CostJumpUnknownFTInc {0} |
| The cost of increasing an unknown fall-through jump's count by one. | |
| const int64_t | CostUnlikely = ((int64_t)1) << 30 |
| The cost of taking an unlikely block/jump. | |
Detailed Description
Various thresholds and options controlling the behavior of the profile inference algorithm.
Default values are tuned for several large-scale applications, and can be modified via corresponding command-line flags.
Definition at line 87 of file SampleProfileInference.h.
Member Data Documentation
◆ CostBlockDec
| unsigned llvm::ProfiParams::CostBlockDec {0} |
The cost of decreasing a block's count by one.
Definition at line 101 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ CostBlockEntryDec
| unsigned llvm::ProfiParams::CostBlockEntryDec {0} |
The cost of decreasing the entry block's count by one.
Definition at line 110 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ CostBlockEntryInc
| unsigned llvm::ProfiParams::CostBlockEntryInc {0} |
The cost of increasing the entry block's count by one.
Definition at line 107 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ CostBlockInc
| unsigned llvm::ProfiParams::CostBlockInc {0} |
The cost of increasing a block's count by one.
Definition at line 98 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ CostBlockUnknownInc
| unsigned llvm::ProfiParams::CostBlockUnknownInc {0} |
The cost of increasing an unknown block's count by one.
Definition at line 113 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ CostBlockZeroInc
| unsigned llvm::ProfiParams::CostBlockZeroInc {0} |
The cost of increasing a count of zero-weight block by one.
Definition at line 104 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ CostJumpDec
| unsigned llvm::ProfiParams::CostJumpDec {0} |
The cost of decreasing a jump's count by one.
Definition at line 122 of file SampleProfileInference.h.
◆ CostJumpFTDec
| unsigned llvm::ProfiParams::CostJumpFTDec {0} |
The cost of decreasing a fall-through jump's count by one.
Definition at line 125 of file SampleProfileInference.h.
◆ CostJumpFTInc
| unsigned llvm::ProfiParams::CostJumpFTInc {0} |
The cost of increasing a fall-through jump's count by one.
Definition at line 119 of file SampleProfileInference.h.
◆ CostJumpInc
| unsigned llvm::ProfiParams::CostJumpInc {0} |
The cost of increasing a jump's count by one.
Definition at line 116 of file SampleProfileInference.h.
◆ CostJumpUnknownFTInc
| unsigned llvm::ProfiParams::CostJumpUnknownFTInc {0} |
The cost of increasing an unknown fall-through jump's count by one.
Definition at line 131 of file SampleProfileInference.h.
◆ CostJumpUnknownInc
| unsigned llvm::ProfiParams::CostJumpUnknownInc {0} |
The cost of increasing an unknown jump's count by one.
Definition at line 128 of file SampleProfileInference.h.
◆ CostUnlikely
| const int64_t llvm::ProfiParams::CostUnlikely = ((int64_t)1) << 30 |
The cost of taking an unlikely block/jump.
Definition at line 134 of file SampleProfileInference.h.
◆ EvenFlowDistribution
| bool llvm::ProfiParams::EvenFlowDistribution {false} |
Evenly distribute flow when there are multiple equally likely options.
Definition at line 89 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ JoinIslands
| bool llvm::ProfiParams::JoinIslands {false} |
Join isolated components having positive flow.
Definition at line 95 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
◆ RebalanceUnknown
| bool llvm::ProfiParams::RebalanceUnknown {false} |
Evenly re-distribute flow among unknown subgraphs.
Definition at line 92 of file SampleProfileInference.h.
Referenced by llvm::applyFlowInference().
The documentation for this struct was generated from the following file:
- include/llvm/Transforms/Utils/SampleProfileInference.h
