GCNILPSched.cpp File Reference

#include "llvm/CodeGen/ScheduleDAG.h"

Include dependency graph for GCNILPSched.cpp:

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Namespaces
	llvm
	This class represents lattice values for constants.

Macros
#define	DEBUG_TYPE   "machine-scheduler"

Functions
static unsigned	CalcNodeSethiUllmanNumber (const SUnit *SU, std::vector< unsigned > &SUNumbers)
	CalcNodeSethiUllmanNumber - Compute Sethi Ullman number. More...
static unsigned	closestSucc (const SUnit *SU)
	closestSucc - Returns the scheduled cycle of the successor which is closest to the current cycle. More...
static unsigned	calcMaxScratches (const SUnit *SU)
	calcMaxScratches - Returns an cost estimate of the worse case requirement for scratch registers, i.e. More...
static int	BUCompareLatency (const SUnit *left, const SUnit *right)
std::vector< const SUnit * >	llvm::makeGCNILPScheduler (ArrayRef< const SUnit *> BotRoots, const ScheduleDAG &DAG)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "machine-scheduler"

Definition at line 18 of file GCNILPSched.cpp.

Function Documentation

BUCompareLatency()

static int BUCompareLatency ( const SUnit *  left, const SUnit *  right  )

static

Definition at line 133 of file GCNILPSched.cpp.

References llvm::abs(), assert(), C, calcMaxScratches(), closestSucc(), llvm::dbgs(), DisableSchedCriticalPath, DisableSchedCycles, DisableSchedHeight, E, llvm::SUnit::getDepth(), llvm::SUnit::getHeight(), I, llvm::SUnit::Latency, LLVM_DEBUG, MaxReorderWindow, llvm::SUnit::NodeNum, llvm::SUnit::NodeQueueId, and llvm::SUnit::Preds.

calcMaxScratches()

static unsigned calcMaxScratches ( const SUnit *  SU )

static

calcMaxScratches - Returns an cost estimate of the worse case requirement for scratch registers, i.e.

number of data dependencies.

Definition at line 122 of file GCNILPSched.cpp.

References llvm::SDep::isCtrl(), and llvm::SUnit::Preds.

Referenced by BUCompareLatency().

CalcNodeSethiUllmanNumber()

static unsigned CalcNodeSethiUllmanNumber ( const SUnit *  SU, std::vector< unsigned > &  SUNumbers  )

static

CalcNodeSethiUllmanNumber - Compute Sethi Ullman number.

Smaller number is the higher priority.

Definition at line 59 of file GCNILPSched.cpp.

References assert(), llvm::SDep::getSUnit(), llvm::SDep::isCtrl(), llvm::SUnit::NodeNum, llvm::SUnit::NumPreds, llvm::SUnit::NumSuccs, and llvm::SUnit::Preds.

closestSucc()

static unsigned closestSucc ( const SUnit *  SU )

static

closestSucc - Returns the scheduled cycle of the successor which is closest to the current cycle.

Definition at line 107 of file GCNILPSched.cpp.

References llvm::SUnit::getHeight(), llvm::SDep::getSUnit(), llvm::SDep::isCtrl(), and llvm::SUnit::Succs.

Referenced by BUCompareLatency().