diff options
Diffstat (limited to 'lib/CodeGen/SpillPlacement.h')
| -rw-r--r-- | lib/CodeGen/SpillPlacement.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/CodeGen/SpillPlacement.h b/lib/CodeGen/SpillPlacement.h index 43fc7f5..622361e 100644 --- a/lib/CodeGen/SpillPlacement.h +++ b/lib/CodeGen/SpillPlacement.h @@ -24,8 +24,8 @@ // //===----------------------------------------------------------------------===// -#ifndef LLVM_CODEGEN_SPILLPLACEMENT_H -#define LLVM_CODEGEN_SPILLPLACEMENT_H +#ifndef LLVM_LIB_CODEGEN_SPILLPLACEMENT_H +#define LLVM_LIB_CODEGEN_SPILLPLACEMENT_H #include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/SmallVector.h" @@ -40,7 +40,7 @@ class MachineBasicBlock; class MachineLoopInfo; class MachineBlockFrequencyInfo; -class SpillPlacement : public MachineFunctionPass { +class SpillPlacement : public MachineFunctionPass { struct Node; const MachineFunction *MF; const EdgeBundles *bundles; @@ -60,7 +60,11 @@ class SpillPlacement : public MachineFunctionPass { SmallVector<unsigned, 8> RecentPositive; // Block frequencies are computed once. Indexed by block number. - SmallVector<BlockFrequency, 4> BlockFrequencies; + SmallVector<BlockFrequency, 8> BlockFrequencies; + + /// Decision threshold. A node gets the output value 0 if the weighted sum of + /// its inputs falls in the open interval (-Threshold;Threshold). + BlockFrequency Threshold; public: static char ID; // Pass identification, replacement for typeid. @@ -152,6 +156,7 @@ private: void releaseMemory() override; void activate(unsigned); + void setThreshold(const BlockFrequency &Entry); }; } // end namespace llvm |