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Move DataLayout back to the TargetMachine from TargetSubtargetInfo

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derived classes.

Since global data alignment, layout, and mangling is often based on the
DataLayout, move it to the TargetMachine. This ensures that global
data is going to be layed out and mangled consistently if the subtarget
changes on a per function basis. Prior to this all targets(*) have
had subtarget dependent code moved out and onto the TargetMachine.

*One target hasn't been migrated as part of this change: R600. The
R600 port has, as a subtarget feature, the size of pointers and
this affects global data layout. I've currently hacked in a FIXME
to enable progress, but the port needs to be updated to either pass
the 64-bitness to the TargetMachine, or fix the DataLayout to
avoid subtarget dependent features.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227113 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2015-01-26 19:03:15 +00:00
parent cce3c83917
commit 04bcc11905
97 changed files with 456 additions and 455 deletions
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66
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -134,7 +134,7 @@ const TargetLoweringObjectFile &AsmPrinter::getObjFileLowering() const {
/// getDataLayout - Return information about data layout.
const DataLayout &AsmPrinter::getDataLayout() const {
return *TM.getSubtargetImpl()->getDataLayout();
return *TM.getDataLayout();
}
const MCSubtargetInfo &AsmPrinter::getSubtargetInfo() const {
@ -175,7 +175,7 @@ bool AsmPrinter::doInitialization(Module &M) {
OutStreamer.InitSections(false);
Mang = new Mangler(TM.getSubtargetImpl()->getDataLayout());
Mang = new Mangler(TM.getDataLayout());
// Emit the version-min deplyment target directive if needed.
//
@ -359,7 +359,7 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = TM.getDataLayout();
uint64_t Size = DL->getTypeAllocSize(GV->getType()->getElementType());
// If the alignment is specified, we *must* obey it. Overaligning a global
@ -1035,8 +1035,7 @@ bool AsmPrinter::doFinalization(Module &M) {
OutContext.GetOrCreateSymbol(StringRef("__morestack_addr"));
OutStreamer.EmitLabel(AddrSymbol);
const DataLayout &DL = *TM.getSubtargetImpl()->getDataLayout();
unsigned PtrSize = DL.getPointerSize(0);
unsigned PtrSize = TM.getDataLayout()->getPointerSize(0);
OutStreamer.EmitSymbolValue(GetExternalSymbolSymbol("__morestack"),
PtrSize);
}
@ -1099,7 +1098,7 @@ void AsmPrinter::EmitConstantPool() {
unsigned Align = CPE.getAlignment();
SectionKind Kind =
CPE.getSectionKind(TM.getSubtargetImpl()->getDataLayout());
CPE.getSectionKind(TM.getDataLayout());
const Constant *C = nullptr;
if (!CPE.isMachineConstantPoolEntry())
@ -1153,7 +1152,7 @@ void AsmPrinter::EmitConstantPool() {
Type *Ty = CPE.getType();
Offset = NewOffset +
TM.getSubtargetImpl()->getDataLayout()->getTypeAllocSize(Ty);
TM.getDataLayout()->getTypeAllocSize(Ty);
OutStreamer.EmitLabel(Sym);
if (CPE.isMachineConstantPoolEntry())
@ -1168,7 +1167,7 @@ void AsmPrinter::EmitConstantPool() {
/// by the current function to the current output stream.
///
void AsmPrinter::EmitJumpTableInfo() {
const DataLayout *DL = MF->getSubtarget().getDataLayout();
const DataLayout *DL = MF->getTarget().getDataLayout();
const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
if (!MJTI) return;
if (MJTI->getEntryKind() == MachineJumpTableInfo::EK_Inline) return;
@ -1200,7 +1199,7 @@ void AsmPrinter::EmitJumpTableInfo() {
}
EmitAlignment(Log2_32(
MJTI->getEntryAlignment(*TM.getSubtargetImpl()->getDataLayout())));
MJTI->getEntryAlignment(*TM.getDataLayout())));
// Jump tables in code sections are marked with a data_region directive
// where that's supported.
@ -1313,7 +1312,7 @@ void AsmPrinter::EmitJumpTableEntry(const MachineJumpTableInfo *MJTI,
assert(Value && "Unknown entry kind!");
unsigned EntrySize =
MJTI->getEntrySize(*TM.getSubtargetImpl()->getDataLayout());
MJTI->getEntrySize(*TM.getDataLayout());
OutStreamer.EmitValue(Value, EntrySize);
}
@ -1423,7 +1422,7 @@ void AsmPrinter::EmitXXStructorList(const Constant *List, bool isCtor) {
}
// Emit the function pointers in the target-specific order
const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = TM.getDataLayout();
unsigned Align = Log2_32(DL->getPointerPrefAlignment());
std::stable_sort(Structors.begin(), Structors.end(),
[](const Structor &L,
@ -1538,7 +1537,7 @@ void AsmPrinter::EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
//
void AsmPrinter::EmitAlignment(unsigned NumBits, const GlobalObject *GV) const {
if (GV)
NumBits = getGVAlignmentLog2(GV, *TM.getSubtargetImpl()->getDataLayout(),
NumBits = getGVAlignmentLog2(GV, *TM.getDataLayout(),
NumBits);
if (NumBits == 0) return; // 1-byte aligned: no need to emit alignment.
@ -1586,7 +1585,7 @@ const MCExpr *AsmPrinter::lowerConstant(const Constant *CV) {
// opportunities. Attempt to fold the expression using DataLayout as a
// last resort before giving up.
if (Constant *C = ConstantFoldConstantExpression(
CE, TM.getSubtargetImpl()->getDataLayout()))
CE, TM.getDataLayout()))
if (C != CE)
return lowerConstant(C);
@ -1600,7 +1599,8 @@ const MCExpr *AsmPrinter::lowerConstant(const Constant *CV) {
report_fatal_error(OS.str());
}
case Instruction::GetElementPtr: {
const DataLayout &DL = *TM.getSubtargetImpl()->getDataLayout();
const DataLayout &DL = *TM.getDataLayout();
// Generate a symbolic expression for the byte address
APInt OffsetAI(DL.getPointerTypeSizeInBits(CE->getType()), 0);
cast<GEPOperator>(CE)->accumulateConstantOffset(DL, OffsetAI);
@ -1624,7 +1624,8 @@ const MCExpr *AsmPrinter::lowerConstant(const Constant *CV) {
return lowerConstant(CE->getOperand(0));
case Instruction::IntToPtr: {
const DataLayout &DL = *TM.getSubtargetImpl()->getDataLayout();
const DataLayout &DL = *TM.getDataLayout();
// Handle casts to pointers by changing them into casts to the appropriate
// integer type. This promotes constant folding and simplifies this code.
Constant *Op = CE->getOperand(0);
@ -1634,7 +1635,8 @@ const MCExpr *AsmPrinter::lowerConstant(const Constant *CV) {
}
case Instruction::PtrToInt: {
const DataLayout &DL = *TM.getSubtargetImpl()->getDataLayout();
const DataLayout &DL = *TM.getDataLayout();
// Support only foldable casts to/from pointers that can be eliminated by
// changing the pointer to the appropriately sized integer type.
Constant *Op = CE->getOperand(0);
@ -1708,7 +1710,7 @@ static int isRepeatedByteSequence(const Value *V, TargetMachine &TM) {
if (CI->getBitWidth() > 64) return -1;
uint64_t Size =
TM.getSubtargetImpl()->getDataLayout()->getTypeAllocSize(V->getType());
TM.getDataLayout()->getTypeAllocSize(V->getType());
uint64_t Value = CI->getZExtValue();
// Make sure the constant is at least 8 bits long and has a power
@ -1753,7 +1755,7 @@ static void emitGlobalConstantDataSequential(const ConstantDataSequential *CDS,
int Value = isRepeatedByteSequence(CDS, AP.TM);
if (Value != -1) {
uint64_t Bytes =
AP.TM.getSubtargetImpl()->getDataLayout()->getTypeAllocSize(
AP.TM.getDataLayout()->getTypeAllocSize(
CDS->getType());
// Don't emit a 1-byte object as a .fill.
if (Bytes > 1)
@ -1804,7 +1806,7 @@ static void emitGlobalConstantDataSequential(const ConstantDataSequential *CDS,
}
}
const DataLayout &DL = *AP.TM.getSubtargetImpl()->getDataLayout();
const DataLayout &DL = *AP.TM.getDataLayout();
unsigned Size = DL.getTypeAllocSize(CDS->getType());
unsigned EmittedSize = DL.getTypeAllocSize(CDS->getType()->getElementType()) *
CDS->getNumElements();
@ -1820,7 +1822,7 @@ static void emitGlobalConstantArray(const ConstantArray *CA, AsmPrinter &AP) {
if (Value != -1) {
uint64_t Bytes =
AP.TM.getSubtargetImpl()->getDataLayout()->getTypeAllocSize(
AP.TM.getDataLayout()->getTypeAllocSize(
CA->getType());
AP.OutStreamer.EmitFill(Bytes, Value);
}
@ -1834,7 +1836,7 @@ static void emitGlobalConstantVector(const ConstantVector *CV, AsmPrinter &AP) {
for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i)
emitGlobalConstantImpl(CV->getOperand(i), AP);
const DataLayout &DL = *AP.TM.getSubtargetImpl()->getDataLayout();
const DataLayout &DL = *AP.TM.getDataLayout();
unsigned Size = DL.getTypeAllocSize(CV->getType());
unsigned EmittedSize = DL.getTypeAllocSize(CV->getType()->getElementType()) *
CV->getType()->getNumElements();
@ -1844,7 +1846,7 @@ static void emitGlobalConstantVector(const ConstantVector *CV, AsmPrinter &AP) {
static void emitGlobalConstantStruct(const ConstantStruct *CS, AsmPrinter &AP) {
// Print the fields in successive locations. Pad to align if needed!
const DataLayout *DL = AP.TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = AP.TM.getDataLayout();
unsigned Size = DL->getTypeAllocSize(CS->getType());
const StructLayout *Layout = DL->getStructLayout(CS->getType());
uint64_t SizeSoFar = 0;
@ -1894,7 +1896,7 @@ static void emitGlobalConstantFP(const ConstantFP *CFP, AsmPrinter &AP) {
// PPC's long double has odd notions of endianness compared to how LLVM
// handles it: p[0] goes first for *big* endian on PPC.
if (AP.TM.getSubtargetImpl()->getDataLayout()->isBigEndian() &&
if (AP.TM.getDataLayout()->isBigEndian() &&
!CFP->getType()->isPPC_FP128Ty()) {
int Chunk = API.getNumWords() - 1;
@ -1913,13 +1915,13 @@ static void emitGlobalConstantFP(const ConstantFP *CFP, AsmPrinter &AP) {
}
// Emit the tail padding for the long double.
const DataLayout &DL = *AP.TM.getSubtargetImpl()->getDataLayout();
const DataLayout &DL = *AP.TM.getDataLayout();
AP.OutStreamer.EmitZeros(DL.getTypeAllocSize(CFP->getType()) -
DL.getTypeStoreSize(CFP->getType()));
}
static void emitGlobalConstantLargeInt(const ConstantInt *CI, AsmPrinter &AP) {
const DataLayout *DL = AP.TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = AP.TM.getDataLayout();
unsigned BitWidth = CI->getBitWidth();
// Copy the value as we may massage the layout for constants whose bit width
@ -1965,7 +1967,7 @@ static void emitGlobalConstantLargeInt(const ConstantInt *CI, AsmPrinter &AP) {
// Emit the extra bits after the 64-bits chunks.
// Emit a directive that fills the expected size.
uint64_t Size = AP.TM.getSubtargetImpl()->getDataLayout()->getTypeAllocSize(
uint64_t Size = AP.TM.getDataLayout()->getTypeAllocSize(
CI->getType());
Size -= (BitWidth / 64) * 8;
assert(Size && Size * 8 >= ExtraBitsSize &&
@ -1976,7 +1978,7 @@ static void emitGlobalConstantLargeInt(const ConstantInt *CI, AsmPrinter &AP) {
}
static void emitGlobalConstantImpl(const Constant *CV, AsmPrinter &AP) {
const DataLayout *DL = AP.TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = AP.TM.getDataLayout();
uint64_t Size = DL->getTypeAllocSize(CV->getType());
if (isa<ConstantAggregateZero>(CV) || isa<UndefValue>(CV))
return AP.OutStreamer.EmitZeros(Size);
@ -2042,7 +2044,7 @@ static void emitGlobalConstantImpl(const Constant *CV, AsmPrinter &AP) {
/// EmitGlobalConstant - Print a general LLVM constant to the .s file.
void AsmPrinter::EmitGlobalConstant(const Constant *CV) {
uint64_t Size =
TM.getSubtargetImpl()->getDataLayout()->getTypeAllocSize(CV->getType());
TM.getDataLayout()->getTypeAllocSize(CV->getType());
if (Size)
emitGlobalConstantImpl(CV, *this);
else if (MAI->hasSubsectionsViaSymbols()) {
@ -2071,7 +2073,7 @@ void AsmPrinter::printOffset(int64_t Offset, raw_ostream &OS) const {
/// GetTempSymbol - Return the MCSymbol corresponding to the assembler
/// temporary label with the specified stem and unique ID.
MCSymbol *AsmPrinter::GetTempSymbol(Twine Name, unsigned ID) const {
const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = TM.getDataLayout();
return OutContext.GetOrCreateSymbol(Twine(DL->getPrivateGlobalPrefix()) +
Name + Twine(ID));
}
@ -2079,7 +2081,7 @@ MCSymbol *AsmPrinter::GetTempSymbol(Twine Name, unsigned ID) const {
/// GetTempSymbol - Return an assembler temporary label with the specified
/// stem.
MCSymbol *AsmPrinter::GetTempSymbol(Twine Name) const {
const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = TM.getDataLayout();
return OutContext.GetOrCreateSymbol(Twine(DL->getPrivateGlobalPrefix())+
Name);
}
@ -2095,7 +2097,7 @@ MCSymbol *AsmPrinter::GetBlockAddressSymbol(const BasicBlock *BB) const {
/// GetCPISymbol - Return the symbol for the specified constant pool entry.
MCSymbol *AsmPrinter::GetCPISymbol(unsigned CPID) const {
const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = TM.getDataLayout();
return OutContext.GetOrCreateSymbol
(Twine(DL->getPrivateGlobalPrefix()) + "CPI" + Twine(getFunctionNumber())
+ "_" + Twine(CPID));
@ -2109,7 +2111,7 @@ MCSymbol *AsmPrinter::GetJTISymbol(unsigned JTID, bool isLinkerPrivate) const {
/// GetJTSetSymbol - Return the symbol for the specified jump table .set
/// FIXME: privatize to AsmPrinter.
MCSymbol *AsmPrinter::GetJTSetSymbol(unsigned UID, unsigned MBBID) const {
const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
const DataLayout *DL = TM.getDataLayout();
return OutContext.GetOrCreateSymbol
(Twine(DL->getPrivateGlobalPrefix()) + Twine(getFunctionNumber()) + "_" +
Twine(UID) + "_set_" + Twine(MBBID));