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Implement the cost of abnormal x86 instruction lowering as a table.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167395 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2012-11-05 19:32:46 +00:00
parent 6837232a60
commit e623702c22
5 changed files with 52 additions and 59 deletions
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18
lib/Target/TargetTransformImpl.cpp
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@@ -60,7 +60,7 @@ bool ScalarTargetTransformImpl::shouldBuildLookupTables() const {
// Calls used by the vectorizers.
//
//===----------------------------------------------------------------------===//
static int InstructionOpcodeToISD(unsigned Opcode) {
int VectorTargetTransformImpl::InstructionOpcodeToISD(unsigned Opcode) const {
enum InstructionOpcodes {
#define HANDLE_INST(NUM, OPCODE, CLASS) OPCODE = NUM,
#define LAST_OTHER_INST(NUM) InstructionOpcodesCount = NUM
@@ -130,7 +130,7 @@ static int InstructionOpcodeToISD(unsigned Opcode) {
llvm_unreachable("Unknown instruction type encountered!");
}
std::pair<unsigned, EVT>
std::pair<unsigned, MVT>
VectorTargetTransformImpl::getTypeLegalizationCost(LLVMContext &C,
EVT Ty) const {
unsigned Cost = 1;
@@ -141,7 +141,7 @@ VectorTargetTransformImpl::getTypeLegalizationCost(LLVMContext &C,
TargetLowering::LegalizeKind LK = TLI->getTypeConversion(C, Ty);
if (LK.first == TargetLowering::TypeLegal)
return std::make_pair(Cost, Ty);
return std::make_pair(Cost, Ty.getSimpleVT());
if (LK.first == TargetLowering::TypeSplitVector)
Cost *= 2;
@@ -174,7 +174,7 @@ unsigned VectorTargetTransformImpl::getArithmeticInstrCost(unsigned Opcode,
int ISD = InstructionOpcodeToISD(Opcode);
assert(ISD && "Invalid opcode");
std::pair<unsigned, EVT> LT =
std::pair<unsigned, MVT> LT =
getTypeLegalizationCost(Ty->getContext(), TLI->getValueType(Ty));
if (!TLI->isOperationExpand(ISD, LT.second)) {
@@ -205,10 +205,10 @@ unsigned VectorTargetTransformImpl::getCastInstrCost(unsigned Opcode, Type *Dst,
int ISD = InstructionOpcodeToISD(Opcode);
assert(ISD && "Invalid opcode");
std::pair<unsigned, EVT> SrcLT =
std::pair<unsigned, MVT> SrcLT =
getTypeLegalizationCost(Src->getContext(), TLI->getValueType(Src));
std::pair<unsigned, EVT> DstLT =
std::pair<unsigned, MVT> DstLT =
getTypeLegalizationCost(Dst->getContext(), TLI->getValueType(Dst));
// Handle scalar conversions.
@@ -283,7 +283,7 @@ unsigned VectorTargetTransformImpl::getCmpSelInstrCost(unsigned Opcode,
ISD = ISD::VSELECT;
}
std::pair<unsigned, EVT> LT =
std::pair<unsigned, MVT> LT =
getTypeLegalizationCost(ValTy->getContext(), TLI->getValueType(ValTy));
if (!TLI->isOperationExpand(ISD, LT.second)) {
@@ -326,7 +326,7 @@ unsigned
VectorTargetTransformImpl::getMemoryOpCost(unsigned Opcode, Type *Src,
unsigned Alignment,
unsigned AddressSpace) const {
std::pair<unsigned, EVT> LT =
std::pair<unsigned, MVT> LT =
getTypeLegalizationCost(Src->getContext(), TLI->getValueType(Src));
// Assume that all loads of legal types cost 1.
@@ -335,7 +335,7 @@ VectorTargetTransformImpl::getMemoryOpCost(unsigned Opcode, Type *Src,
unsigned
VectorTargetTransformImpl::getNumberOfParts(Type *Tp) const {
std::pair<unsigned, EVT> LT =
std::pair<unsigned, MVT> LT =
getTypeLegalizationCost(Tp->getContext(), TLI->getValueType(Tp));
return LT.first;
}