LoongArchTargetTransformInfo.cpp Source File (original) (raw)

18using namespace llvm;

20#define DEBUG_TYPE "loongarchtti"

25 switch (K) {

29 if (ST->hasExtLASX())

31 if (ST->hasExtLSX())

33 [[fallthrough]];

35 return DefSize;

36 }

39}

42 switch (ClassID) {

43 case LoongArchRegisterClass::GPRRC:

45 return 30;

46 case LoongArchRegisterClass::FPRRC:

47 return ST->hasBasicF() ? 32 : 0;

48 case LoongArchRegisterClass::VRRC:

49 return ST->hasExtLSX() ? 32 : 0;

50 }

52}

55 Type *Ty) const {

57 return LoongArchRegisterClass::VRRC;

58 if (!Ty)

59 return LoongArchRegisterClass::GPRRC;

62 if ((ScalarTy->isFloatTy() && ST->hasBasicF()) ||

63 (ScalarTy->isDoubleTy() && ST->hasBasicD())) {

64 return LoongArchRegisterClass::FPRRC;

65 }

67 return LoongArchRegisterClass::GPRRC;

68}

71 return ST->getMaxInterleaveFactor();

72}

75 switch (ClassID) {

76 case LoongArchRegisterClass::GPRRC:

77 return "LoongArch::GPRRC";

78 case LoongArchRegisterClass::FPRRC:

79 return "LoongArch::FPRRC";

80 case LoongArchRegisterClass::VRRC:

81 return "LoongArch::VRRC";

82 }

84}

99 switch (II->getIntrinsicID()) {

100 default:

101 return true;

102 case Intrinsic::vector_reduce_add:

103 case Intrinsic::vector_reduce_and:

104 case Intrinsic::vector_reduce_or:

105 case Intrinsic::vector_reduce_smax:

106 case Intrinsic::vector_reduce_smin:

107 case Intrinsic::vector_reduce_umax:

108 case Intrinsic::vector_reduce_umin:

109 case Intrinsic::vector_reduce_xor:

110 return false;

111 }

112}

113

117

118 if (!ST->hasUAL())

120

121 Options.MaxNumLoads = TLI->getMaxExpandSizeMemcmp(OptSize);

123 Options.AllowOverlappingLoads = true;

124

125

126 if (ST->is64Bit()) {

127 Options.LoadSizes = {8, 4, 2, 1};

128 Options.AllowedTailExpansions = {3, 5, 6};

129 } else {

130 Options.LoadSizes = {4, 2, 1};

131 Options.AllowedTailExpansions = {3};

132 }

133

135}

assert(UImm &&(UImm !=~static_cast< T >(0)) &&"Invalid immediate!")

This file a TargetTransformInfoImplBase conforming object specific to the LoongArch target machine.

uint64_t IntrinsicInst * II

A wrapper class for inspecting calls to intrinsic functions.

TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth) const override

Definition LoongArchTargetTransformInfo.cpp:87

unsigned getCacheLineSize() const override

Definition LoongArchTargetTransformInfo.cpp:92

bool shouldExpandReduction(const IntrinsicInst *II) const override

Definition LoongArchTargetTransformInfo.cpp:98

unsigned getRegisterClassForType(bool Vector, Type *Ty=nullptr) const override

Definition LoongArchTargetTransformInfo.cpp:54

TTI::MemCmpExpansionOptions enableMemCmpExpansion(bool OptSize, bool IsZeroCmp) const override

Definition LoongArchTargetTransformInfo.cpp:115

unsigned getMaxInterleaveFactor(ElementCount VF) const override

Definition LoongArchTargetTransformInfo.cpp:70

const char * getRegisterClassName(unsigned ClassID) const override

Definition LoongArchTargetTransformInfo.cpp:74

unsigned getNumberOfRegisters(unsigned ClassID) const override

Definition LoongArchTargetTransformInfo.cpp:41

unsigned getPrefetchDistance() const override

Definition LoongArchTargetTransformInfo.cpp:94

bool enableWritePrefetching() const override

Definition LoongArchTargetTransformInfo.cpp:96

TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const override

Definition LoongArchTargetTransformInfo.cpp:22

virtual TypeSize getRegisterBitWidth(TargetTransformInfo::RegisterKind K) const

PopcntSupportKind

Flags indicating the kind of support for population count.

static constexpr TypeSize getFixed(ScalarTy ExactSize)

The instances of the Type class are immutable: once they are created, they are never changed.

bool isFloatTy() const

Return true if this is 'float', a 32-bit IEEE fp type.

Type * getScalarType() const

If this is a vector type, return the element type, otherwise return 'this'.

bool isDoubleTy() const

Return true if this is 'double', a 64-bit IEEE fp type.

#define llvm_unreachable(msg)

Marks that the current location is not supposed to be reachable.

This is an optimization pass for GlobalISel generic memory operations.

constexpr bool isPowerOf2_32(uint32_t Value)

Return true if the argument is a power of two > 0.

Returns options for expansion of memcmp. IsZeroCmp is.