#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Analysis/ConstantFolding.h"
+#include "llvm/Analysis/EHPersonalities.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunctionInitializer.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/CodeGen/WinEHFuncInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/Function.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/ModuleSlotTracker.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/Support/Debug.h"
#define DEBUG_TYPE "codegen"
+static cl::opt<unsigned>
+ AlignAllFunctions("align-all-functions",
+ cl::desc("Force the alignment of all functions."),
+ cl::init(0), cl::Hidden);
+
+void MachineFunctionInitializer::anchor() {}
+
//===----------------------------------------------------------------------===//
// MachineFunction implementation
//===----------------------------------------------------------------------===//
if (Fn->hasFnAttribute(Attribute::StackAlignment))
FrameInfo->ensureMaxAlignment(Fn->getFnStackAlignment());
- ConstantPool = new (Allocator) MachineConstantPool(TM);
+ ConstantPool = new (Allocator) MachineConstantPool(getDataLayout());
Alignment = STI->getTargetLowering()->getMinFunctionAlignment();
// FIXME: Shouldn't use pref alignment if explicit alignment is set on Fn.
+ // FIXME: Use Function::optForSize().
if (!Fn->hasFnAttribute(Attribute::OptimizeForSize))
Alignment = std::max(Alignment,
STI->getTargetLowering()->getPrefFunctionAlignment());
+ if (AlignAllFunctions)
+ Alignment = AlignAllFunctions;
+
FunctionNumber = FunctionNum;
JumpTableInfo = nullptr;
+
+ if (isFuncletEHPersonality(classifyEHPersonality(
+ F->hasPersonalityFn() ? F->getPersonalityFn() : nullptr))) {
+ WinEHInfo = new (Allocator) WinEHFuncInfo();
+ }
+
+ assert(TM.isCompatibleDataLayout(getDataLayout()) &&
+ "Can't create a MachineFunction using a Module with a "
+ "Target-incompatible DataLayout attached\n");
+
+ PSVManager = llvm::make_unique<PseudoSourceValueManager>();
}
MachineFunction::~MachineFunction() {
JumpTableInfo->~MachineJumpTableInfo();
Allocator.Deallocate(JumpTableInfo);
}
+
+ if (WinEHInfo) {
+ WinEHInfo->~WinEHFuncInfo();
+ Allocator.Deallocate(WinEHInfo);
+ }
+}
+
+const DataLayout &MachineFunction::getDataLayout() const {
+ return Fn->getParent()->getDataLayout();
}
/// Get the JumpTableInfo for this function.
}
/// Should we be emitting segmented stack stuff for the function
-bool MachineFunction::shouldSplitStack() {
+bool MachineFunction::shouldSplitStack() const {
return getFunction()->hasFnAttribute("split-stack");
}
if (MBB == nullptr)
MBBI = begin();
else
- MBBI = MBB;
+ MBBI = MBB->getIterator();
// Figure out the block number this should have.
unsigned BlockNo = 0;
if (MBBNumbering[BlockNo])
MBBNumbering[BlockNo]->setNumber(-1);
- MBBNumbering[BlockNo] = MBBI;
+ MBBNumbering[BlockNo] = &*MBBI;
MBBI->setNumber(BlockNo);
}
}
return std::make_pair(Result, Result + Num);
}
+const char *MachineFunction::createExternalSymbolName(StringRef Name) {
+ char *Dest = Allocator.Allocate<char>(Name.size() + 1);
+ std::copy(Name.begin(), Name.end(), Dest);
+ Dest[Name.size()] = 0;
+ return Dest;
+}
+
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
void MachineFunction::dump() const {
print(dbgs());
OS << '\n';
}
+ ModuleSlotTracker MST(getFunction()->getParent());
+ MST.incorporateFunction(*getFunction());
for (const auto &BB : *this) {
OS << '\n';
- BB.print(OS, Indexes);
+ BB.print(OS, MST, Indexes);
}
OS << "\n# End machine code for function " << getName() << ".\n\n";
/// normal 'L' label is returned.
MCSymbol *MachineFunction::getJTISymbol(unsigned JTI, MCContext &Ctx,
bool isLinkerPrivate) const {
- const DataLayout *DL = getTarget().getDataLayout();
+ const DataLayout &DL = getDataLayout();
assert(JumpTableInfo && "No jump tables");
assert(JTI < JumpTableInfo->getJumpTables().size() && "Invalid JTI!");
- const char *Prefix = isLinkerPrivate ? DL->getLinkerPrivateGlobalPrefix() :
- DL->getPrivateGlobalPrefix();
+ const char *Prefix = isLinkerPrivate ? DL.getLinkerPrivateGlobalPrefix()
+ : DL.getPrivateGlobalPrefix();
SmallString<60> Name;
raw_svector_ostream(Name)
<< Prefix << "JTI" << getFunctionNumber() << '_' << JTI;
/// Return a function-local symbol to represent the PIC base.
MCSymbol *MachineFunction::getPICBaseSymbol() const {
- const DataLayout *DL = getTarget().getDataLayout();
- return Ctx.getOrCreateSymbol(Twine(DL->getPrivateGlobalPrefix())+
- Twine(getFunctionNumber())+"$pb");
+ const DataLayout &DL = getDataLayout();
+ return Ctx.getOrCreateSymbol(Twine(DL.getPrivateGlobalPrefix()) +
+ Twine(getFunctionNumber()) + "$pb");
}
//===----------------------------------------------------------------------===//
BV.set(*CSR);
// Saved CSRs are not pristine.
- const std::vector<CalleeSavedInfo> &CSI = getCalleeSavedInfo();
- for (std::vector<CalleeSavedInfo>::const_iterator I = CSI.begin(),
- E = CSI.end(); I != E; ++I)
- BV.reset(I->getReg());
+ for (auto &I : getCalleeSavedInfo())
+ for (MCSubRegIterator S(I.getReg(), TRI, true); S.isValid(); ++S)
+ BV.reset(*S);
return BV;
}
void MachineConstantPoolValue::anchor() { }
-const DataLayout *MachineConstantPool::getDataLayout() const {
- return TM.getDataLayout();
-}
-
Type *MachineConstantPoolEntry::getType() const {
if (isMachineConstantPoolEntry())
return Val.MachineCPVal->getType();
return Val.ConstVal->getType();
}
-
-unsigned MachineConstantPoolEntry::getRelocationInfo() const {
+bool MachineConstantPoolEntry::needsRelocation() const {
if (isMachineConstantPoolEntry())
- return Val.MachineCPVal->getRelocationInfo();
- return Val.ConstVal->getRelocationInfo();
+ return true;
+ return Val.ConstVal->needsRelocation();
}
SectionKind
MachineConstantPoolEntry::getSectionKind(const DataLayout *DL) const {
- SectionKind Kind;
- switch (getRelocationInfo()) {
+ if (needsRelocation())
+ return SectionKind::getReadOnlyWithRel();
+ switch (DL->getTypeAllocSize(getType())) {
+ case 4:
+ return SectionKind::getMergeableConst4();
+ case 8:
+ return SectionKind::getMergeableConst8();
+ case 16:
+ return SectionKind::getMergeableConst16();
default:
- llvm_unreachable("Unknown section kind");
- case Constant::GlobalRelocations:
- Kind = SectionKind::getReadOnlyWithRel();
- break;
- case Constant::LocalRelocation:
- Kind = SectionKind::getReadOnlyWithRelLocal();
- break;
- case Constant::NoRelocation:
- switch (DL->getTypeAllocSize(getType())) {
- case 4:
- Kind = SectionKind::getMergeableConst4();
- break;
- case 8:
- Kind = SectionKind::getMergeableConst8();
- break;
- case 16:
- Kind = SectionKind::getMergeableConst16();
- break;
- default:
- Kind = SectionKind::getReadOnly();
- break;
- }
+ return SectionKind::getReadOnly();
}
- return Kind;
}
MachineConstantPool::~MachineConstantPool() {
/// Test whether the given two constants can be allocated the same constant pool
/// entry.
static bool CanShareConstantPoolEntry(const Constant *A, const Constant *B,
- const DataLayout *TD) {
+ const DataLayout &DL) {
// Handle the trivial case quickly.
if (A == B) return true;
return false;
// For now, only support constants with the same size.
- uint64_t StoreSize = TD->getTypeStoreSize(A->getType());
- if (StoreSize != TD->getTypeStoreSize(B->getType()) || StoreSize > 128)
+ uint64_t StoreSize = DL.getTypeStoreSize(A->getType());
+ if (StoreSize != DL.getTypeStoreSize(B->getType()) || StoreSize > 128)
return false;
Type *IntTy = IntegerType::get(A->getContext(), StoreSize*8);
// DataLayout.
if (isa<PointerType>(A->getType()))
A = ConstantFoldInstOperands(Instruction::PtrToInt, IntTy,
- const_cast<Constant *>(A), *TD);
+ const_cast<Constant *>(A), DL);
else if (A->getType() != IntTy)
A = ConstantFoldInstOperands(Instruction::BitCast, IntTy,
- const_cast<Constant *>(A), *TD);
+ const_cast<Constant *>(A), DL);
if (isa<PointerType>(B->getType()))
B = ConstantFoldInstOperands(Instruction::PtrToInt, IntTy,
- const_cast<Constant *>(B), *TD);
+ const_cast<Constant *>(B), DL);
else if (B->getType() != IntTy)
B = ConstantFoldInstOperands(Instruction::BitCast, IntTy,
- const_cast<Constant *>(B), *TD);
+ const_cast<Constant *>(B), DL);
return A == B;
}
// FIXME, this could be made much more efficient for large constant pools.
for (unsigned i = 0, e = Constants.size(); i != e; ++i)
if (!Constants[i].isMachineConstantPoolEntry() &&
- CanShareConstantPoolEntry(Constants[i].Val.ConstVal, C,
- getDataLayout())) {
+ CanShareConstantPoolEntry(Constants[i].Val.ConstVal, C, DL)) {
if ((unsigned)Constants[i].getAlignment() < Alignment)
Constants[i].Alignment = Alignment;
return i;
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