AMDGPUReserveWWMRegs.cpp File Reference

This pass should be invoked at the end of wwm-regalloc pipeline. More...

#include "AMDGPUReserveWWMRegs.h"
#include "AMDGPU.h"
#include "SIMachineFunctionInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/RegisterClassInfo.h"
#include "llvm/CodeGen/VirtRegMap.h"
#include "llvm/InitializePasses.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "amdgpu-reserve-wwm-regs"

Functions
	INITIALIZE_PASS_BEGIN (AMDGPUReserveWWMRegsLegacy, DEBUG_TYPE, "AMDGPU Reserve WWM Registers", false, false) INITIALIZE_PASS_END(AMDGPUReserveWWMRegsLegacy

Variables
	DEBUG_TYPE
AMDGPU Reserve WWM	Registers
AMDGPU Reserve WWM	false

Detailed Description

This pass should be invoked at the end of wwm-regalloc pipeline.

It identifies the WWM regs allocated during this pipeline and add them to the list of reserved registers so that they won't be available for per-thread VGPR allocation in the subsequent regalloc pipeline.

Definition in file AMDGPUReserveWWMRegs.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "amdgpu-reserve-wwm-regs"

Definition at line 27 of file AMDGPUReserveWWMRegs.cpp.

Function Documentation

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	AMDGPUReserveWWMRegsLegacy	,
		DEBUG_TYPE	,
		"AMDGPU Reserve WWM Registers"	,
		false	,
		false	)

References DEBUG_TYPE, and INITIALIZE_PASS_DEPENDENCY.

Variable Documentation

DEBUG_TYPE

DEBUG_TYPE

Definition at line 64 of file AMDGPUReserveWWMRegs.cpp.

false

AMDGPU Reserve WWM false

Definition at line 65 of file AMDGPUReserveWWMRegs.cpp.

Registers

AMDGPU Reserve WWM Registers

Definition at line 65 of file AMDGPUReserveWWMRegs.cpp.

Referenced by ConsecutiveRegisters(), llvm::SIRegisterInfo::getNumUsedPhysRegs(), llvm::dwarf::RegisterLocations::getRegisters(), and llvm::MIRParserImpl::initializeSaveRestorePoints().