AMDGPURegBankLegalize.cpp File Reference

#include "AMDGPU.h"
#include "AMDGPUGlobalISelUtils.h"
#include "AMDGPURegBankLegalizeHelper.h"
#include "GCNSubtarget.h"
#include "llvm/CodeGen/GlobalISel/CSEInfo.h"
#include "llvm/CodeGen/GlobalISel/CSEMIRBuilder.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/CodeGen/GlobalISel/Utils.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineUniformityAnalysis.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/InitializePasses.h"

Go to the source code of this file.

Classes
class	AMDGPURegBankLegalizeCombiner

Macros
#define	DEBUG_TYPE   "amdgpu-regbanklegalize"
	Lower G_ instructions that can't be inst-selected with register bank assignment from AMDGPURegBankSelect based on machine uniformity info.

Functions
	INITIALIZE_PASS_BEGIN (AMDGPURegBankLegalize, DEBUG_TYPE, "AMDGPU Register Bank Legalize", false, false) INITIALIZE_PASS_END(AMDGPURegBankLegalize
const RegBankLegalizeRules &	getRules (const GCNSubtarget &ST, MachineRegisterInfo &MRI)
static Register	getAnySgprS1 (const MachineRegisterInfo &MRI)

Variables
	DEBUG_TYPE
AMDGPU Register Bank	Legalize
AMDGPU Register Bank	false

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "amdgpu-regbanklegalize"

Lower G_ instructions that can't be inst-selected with register bank assignment from AMDGPURegBankSelect based on machine uniformity info.

Given types on all operands, some register bank assignments require lowering while others do not. Note: cases where all register bank assignments would require lowering are lowered in legalizer. For example vgpr S64 G_AND requires lowering to S32 while sgpr S64 does not. Eliminate sgpr S1 by lowering to sgpr S32.

Definition at line 33 of file AMDGPURegBankLegalize.cpp.

Function Documentation

getAnySgprS1()

Register getAnySgprS1 ( const MachineRegisterInfo & MRI )

static

Definition at line 349 of file AMDGPURegBankLegalize.cpp.

References llvm::dbgs(), llvm::dump(), llvm::RegisterBank::getID(), llvm::Register::index2VirtReg(), LLVM_DEBUG, MRI, Reg, S1, and llvm::LLT::scalar().

getRules()

const RegBankLegalizeRules & getRules	(	const GCNSubtarget &	ST,
		MachineRegisterInfo &	MRI )

Definition at line 85 of file AMDGPURegBankLegalize.cpp.

References MRI, and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::try_emplace().

INITIALIZE_PASS_BEGIN()

INITIALIZE_PASS_BEGIN	(	AMDGPURegBankLegalize	,
		DEBUG_TYPE	,
		"AMDGPU Register Bank Legalize"	,
		false	,
		false	)

References DEBUG_TYPE, and INITIALIZE_PASS_DEPENDENCY.

Variable Documentation

DEBUG_TYPE

DEBUG_TYPE

Definition at line 74 of file AMDGPURegBankLegalize.cpp.

false

AMDGPU Register Bank false

Definition at line 75 of file AMDGPURegBankLegalize.cpp.

Legalize

AMDGPU Register Bank Legalize

Definition at line 75 of file AMDGPURegBankLegalize.cpp.