LLVM  6.0.0svn
Macros | Functions | Variables
SIOptimizeExecMasking.cpp File Reference
#include "AMDGPU.h"
#include "AMDGPUSubtarget.h"
#include "SIInstrInfo.h"
#include "llvm/CodeGen/LiveIntervalAnalysis.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Support/Debug.h"
Include dependency graph for SIOptimizeExecMasking.cpp:

Go to the source code of this file.

Macros

#define DEBUG_TYPE   "si-optimize-exec-masking"
 

Functions

 INITIALIZE_PASS_BEGIN (SIOptimizeExecMasking, DEBUG_TYPE, "SI optimize exec mask operations", false, false) INITIALIZE_PASS_END(SIOptimizeExecMasking
 
static unsigned isCopyFromExec (const MachineInstr &MI)
 If MI is a copy from exec, return the register copied to. More...
 
static unsigned isCopyToExec (const MachineInstr &MI)
 If MI is a copy to exec, return the register copied from. More...
 
static unsigned isLogicalOpOnExec (const MachineInstr &MI)
 If MI is a logical operation on an exec value, return the register copied to. More...
 
static unsigned getSaveExecOp (unsigned Opc)
 
static bool removeTerminatorBit (const SIInstrInfo &TII, MachineInstr &MI)
 
static MachineBasicBlock::reverse_iterator fixTerminators (const SIInstrInfo &TII, MachineBasicBlock &MBB)
 
static MachineBasicBlock::reverse_iterator findExecCopy (const SIInstrInfo &TII, MachineBasicBlock &MBB, MachineBasicBlock::reverse_iterator I, unsigned CopyToExec)
 
static bool isLiveOut (const MachineBasicBlock &MBB, unsigned Reg)
 

Variables

 DEBUG_TYPE
 
SI optimize exec mask operations
 
SI optimize exec mask false
 

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE   "si-optimize-exec-masking"

Definition at line 21 of file SIOptimizeExecMasking.cpp.

Function Documentation

◆ findExecCopy()

static MachineBasicBlock::reverse_iterator findExecCopy ( const SIInstrInfo TII,
MachineBasicBlock MBB,
MachineBasicBlock::reverse_iterator  I,
unsigned  CopyToExec 
)
static

Definition at line 178 of file SIOptimizeExecMasking.cpp.

References E, I, isCopyFromExec(), N, and llvm::MachineBasicBlock::rend().

Referenced by isLiveOut().

◆ fixTerminators()

static MachineBasicBlock::reverse_iterator fixTerminators ( const SIInstrInfo TII,
MachineBasicBlock MBB 
)
static

◆ getSaveExecOp()

static unsigned getSaveExecOp ( unsigned  Opc)
static

Definition at line 114 of file SIOptimizeExecMasking.cpp.

Referenced by isLiveOut().

◆ INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN ( SIOptimizeExecMasking  ,
DEBUG_TYPE  ,
"SI optimize exec mask operations ,
false  ,
false   
)

◆ isCopyFromExec()

static unsigned isCopyFromExec ( const MachineInstr MI)
static

If MI is a copy from exec, return the register copied to.

Definition at line 59 of file SIOptimizeExecMasking.cpp.

References llvm::MachineOperand::getReg(), llvm::MachineOperand::isReg(), and MI.

Referenced by findExecCopy().

◆ isCopyToExec()

static unsigned isCopyToExec ( const MachineInstr MI)
static

If MI is a copy to exec, return the register copied from.

Definition at line 74 of file SIOptimizeExecMasking.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::MachineOperand::isReg(), and llvm_unreachable.

Referenced by isLiveOut().

◆ isLiveOut()

static bool isLiveOut ( const MachineBasicBlock MBB,
unsigned  Reg 
)
static

◆ isLogicalOpOnExec()

static unsigned isLogicalOpOnExec ( const MachineInstr MI)
static

If MI is a logical operation on an exec value, return the register copied to.

Definition at line 92 of file SIOptimizeExecMasking.cpp.

References llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), and llvm::MachineOperand::isReg().

Referenced by isLiveOut().

◆ removeTerminatorBit()

static bool removeTerminatorBit ( const SIInstrInfo TII,
MachineInstr MI 
)
static

Variable Documentation

◆ DEBUG_TYPE

DEBUG_TYPE

Definition at line 51 of file SIOptimizeExecMasking.cpp.

◆ false

SI optimize exec mask false

Definition at line 51 of file SIOptimizeExecMasking.cpp.

◆ operations

SI optimize exec mask operations

Definition at line 51 of file SIOptimizeExecMasking.cpp.