#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
}
StringRef AsmPrinter::getTargetTriple() const {
- return TM.getTargetTriple();
+ return TM.getTargetTriple().str();
}
/// getCurrentSection() - Return the current section we are emitting to.
bool AsmPrinter::doInitialization(Module &M) {
MMI = getAnalysisIfAvailable<MachineModuleInfo>();
- MMI->AnalyzeModule(M);
// Initialize TargetLoweringObjectFile.
const_cast<TargetLoweringObjectFile&>(getObjFileLowering())
OutStreamer->InitSections(false);
- Mang = new Mangler(TM.getDataLayout());
+ Mang = new Mangler();
// Emit the version-min deplyment target directive if needed.
//
// We're at the module level. Construct MCSubtarget from the default CPU
// and target triple.
std::unique_ptr<MCSubtargetInfo> STI(TM.getTarget().createMCSubtargetInfo(
- TM.getTargetTriple(), TM.getTargetCPU(), TM.getTargetFeatureString()));
+ TM.getTargetTriple().str(), TM.getTargetCPU(),
+ TM.getTargetFeatureString()));
OutStreamer->AddComment("Start of file scope inline assembly");
OutStreamer->AddBlankLine();
EmitInlineAsm(M.getModuleInlineAsm()+"\n", *STI, TM.Options.MCOptions);
if (MAI->doesSupportDebugInformation()) {
bool skip_dwarf = false;
- if (Triple(TM.getTargetTriple()).isKnownWindowsMSVCEnvironment()) {
+ if (TM.getTargetTriple().isKnownWindowsMSVCEnvironment()) {
Handlers.push_back(HandlerInfo(new WinCodeViewLineTables(this),
DbgTimerName,
CodeViewLineTablesGroupName));
if (MAI->hasDotTypeDotSizeDirective())
// .size foo, 42
- OutStreamer->EmitELFSize(GVSym, MCConstantExpr::Create(Size, OutContext));
+ OutStreamer->emitELFSize(cast<MCSymbolELF>(GVSym),
+ MCConstantExpr::create(Size, OutContext));
OutStreamer->AddBlankLine();
}
MCSymbol *CurPos = OutContext.createTempSymbol();
OutStreamer->EmitLabel(CurPos);
OutStreamer->EmitAssignment(CurrentFnBegin,
- MCSymbolRefExpr::Create(CurPos, OutContext));
+ MCSymbolRefExpr::create(CurPos, OutContext));
} else {
OutStreamer->EmitLabel(CurrentFnBegin);
}
// Emit a symbol assignment.
OutStreamer->EmitAssignment(FrameAllocSym,
- MCConstantExpr::Create(FrameOffset, OutContext));
+ MCConstantExpr::create(FrameOffset, OutContext));
}
/// EmitFunctionBody - This method emits the body and trailer for a
if (MAI->hasDotTypeDotSizeDirective()) {
// We can get the size as difference between the function label and the
// temp label.
- const MCExpr *SizeExp =
- MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(CurrentFnEnd, OutContext),
- MCSymbolRefExpr::Create(CurrentFnSymForSize,
- OutContext),
- OutContext);
- OutStreamer->EmitELFSize(CurrentFnSym, SizeExp);
+ const MCExpr *SizeExp = MCBinaryExpr::createSub(
+ MCSymbolRefExpr::create(CurrentFnEnd, OutContext),
+ MCSymbolRefExpr::create(CurrentFnSymForSize, OutContext), OutContext);
+ if (auto Sym = dyn_cast<MCSymbolELF>(CurrentFnSym))
+ OutStreamer->emitELFSize(Sym, SizeExp);
}
for (const HandlerInfo &HI : Handlers) {
if (!ModuleFlags.empty())
TLOF.emitModuleFlags(*OutStreamer, ModuleFlags, *Mang, TM);
- Triple TT(TM.getTargetTriple());
- if (TT.isOSBinFormatELF()) {
+ if (TM.getTargetTriple().isOSBinFormatELF()) {
MachineModuleInfoELF &MMIELF = MMI->getObjFileInfo<MachineModuleInfoELF>();
// Output stubs for external and common global variables.
// .set LJTSet, LBB32-base
const MCExpr *LHS =
- MCSymbolRefExpr::Create(MBB->getSymbol(), OutContext);
+ MCSymbolRefExpr::create(MBB->getSymbol(), OutContext);
OutStreamer->EmitAssignment(GetJTSetSymbol(JTI, MBB->getNumber()),
- MCBinaryExpr::CreateSub(LHS, Base,
+ MCBinaryExpr::createSub(LHS, Base,
OutContext));
}
}
case MachineJumpTableInfo::EK_BlockAddress:
// EK_BlockAddress - Each entry is a plain address of block, e.g.:
// .word LBB123
- Value = MCSymbolRefExpr::Create(MBB->getSymbol(), OutContext);
+ Value = MCSymbolRefExpr::create(MBB->getSymbol(), OutContext);
break;
case MachineJumpTableInfo::EK_GPRel32BlockAddress: {
// EK_GPRel32BlockAddress - Each entry is an address of block, encoded
// with a relocation as gp-relative, e.g.:
// .gprel32 LBB123
MCSymbol *MBBSym = MBB->getSymbol();
- OutStreamer->EmitGPRel32Value(MCSymbolRefExpr::Create(MBBSym, OutContext));
+ OutStreamer->EmitGPRel32Value(MCSymbolRefExpr::create(MBBSym, OutContext));
return;
}
// with a relocation as gp-relative, e.g.:
// .gpdword LBB123
MCSymbol *MBBSym = MBB->getSymbol();
- OutStreamer->EmitGPRel64Value(MCSymbolRefExpr::Create(MBBSym, OutContext));
+ OutStreamer->EmitGPRel64Value(MCSymbolRefExpr::create(MBBSym, OutContext));
return;
}
// .set L4_5_set_123, LBB123 - LJTI1_2
// .word L4_5_set_123
if (MAI->doesSetDirectiveSuppressesReloc()) {
- Value = MCSymbolRefExpr::Create(GetJTSetSymbol(UID, MBB->getNumber()),
+ Value = MCSymbolRefExpr::create(GetJTSetSymbol(UID, MBB->getNumber()),
OutContext);
break;
}
- Value = MCSymbolRefExpr::Create(MBB->getSymbol(), OutContext);
+ Value = MCSymbolRefExpr::create(MBB->getSymbol(), OutContext);
const TargetLowering *TLI = MF->getSubtarget().getTargetLowering();
const MCExpr *Base = TLI->getPICJumpTableRelocBaseExpr(MF, UID, OutContext);
- Value = MCBinaryExpr::CreateSub(Value, Base, OutContext);
+ Value = MCBinaryExpr::createSub(Value, Base, OutContext);
break;
}
}
/// .set if it avoids relocations.
void AsmPrinter::EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
unsigned Size) const {
- if (!MAI->doesDwarfUseRelocationsAcrossSections())
- if (OutStreamer->emitAbsoluteSymbolDiff(Hi, Lo, Size))
- return;
-
- // Get the Hi-Lo expression.
- const MCExpr *Diff =
- MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(Hi, OutContext),
- MCSymbolRefExpr::Create(Lo, OutContext),
- OutContext);
-
- if (!MAI->doesSetDirectiveSuppressesReloc()) {
- OutStreamer->EmitValue(Diff, Size);
- return;
- }
-
- // Otherwise, emit with .set (aka assignment).
- MCSymbol *SetLabel = createTempSymbol("set");
- OutStreamer->EmitAssignment(SetLabel, Diff);
- OutStreamer->EmitSymbolValue(SetLabel, Size);
+ OutStreamer->emitAbsoluteSymbolDiff(Hi, Lo, Size);
}
/// EmitLabelPlusOffset - Emit something like ".long Label+Offset"
}
// Emit Label+Offset (or just Label if Offset is zero)
- const MCExpr *Expr = MCSymbolRefExpr::Create(Label, OutContext);
+ const MCExpr *Expr = MCSymbolRefExpr::create(Label, OutContext);
if (Offset)
- Expr = MCBinaryExpr::CreateAdd(
- Expr, MCConstantExpr::Create(Offset, OutContext), OutContext);
+ Expr = MCBinaryExpr::createAdd(
+ Expr, MCConstantExpr::create(Offset, OutContext), OutContext);
OutStreamer->EmitValue(Expr, Size);
}
MCContext &Ctx = OutContext;
if (CV->isNullValue() || isa<UndefValue>(CV))
- return MCConstantExpr::Create(0, Ctx);
+ return MCConstantExpr::create(0, Ctx);
if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV))
- return MCConstantExpr::Create(CI->getZExtValue(), Ctx);
+ return MCConstantExpr::create(CI->getZExtValue(), Ctx);
if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV))
- return MCSymbolRefExpr::Create(getSymbol(GV), Ctx);
+ return MCSymbolRefExpr::create(getSymbol(GV), Ctx);
if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV))
- return MCSymbolRefExpr::Create(GetBlockAddressSymbol(BA), Ctx);
+ return MCSymbolRefExpr::create(GetBlockAddressSymbol(BA), Ctx);
const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV);
if (!CE) {
return Base;
int64_t Offset = OffsetAI.getSExtValue();
- return MCBinaryExpr::CreateAdd(Base, MCConstantExpr::Create(Offset, Ctx),
+ return MCBinaryExpr::createAdd(Base, MCConstantExpr::create(Offset, Ctx),
Ctx);
}
// the high bits so we are sure to get a proper truncation if the input is
// a constant expr.
unsigned InBits = DL.getTypeAllocSizeInBits(Op->getType());
- const MCExpr *MaskExpr = MCConstantExpr::Create(~0ULL >> (64-InBits), Ctx);
- return MCBinaryExpr::CreateAnd(OpExpr, MaskExpr, Ctx);
+ const MCExpr *MaskExpr = MCConstantExpr::create(~0ULL >> (64-InBits), Ctx);
+ return MCBinaryExpr::createAnd(OpExpr, MaskExpr, Ctx);
}
// The MC library also has a right-shift operator, but it isn't consistently
const MCExpr *RHS = lowerConstant(CE->getOperand(1));
switch (CE->getOpcode()) {
default: llvm_unreachable("Unknown binary operator constant cast expr");
- case Instruction::Add: return MCBinaryExpr::CreateAdd(LHS, RHS, Ctx);
- case Instruction::Sub: return MCBinaryExpr::CreateSub(LHS, RHS, Ctx);
- case Instruction::Mul: return MCBinaryExpr::CreateMul(LHS, RHS, Ctx);
- case Instruction::SDiv: return MCBinaryExpr::CreateDiv(LHS, RHS, Ctx);
- case Instruction::SRem: return MCBinaryExpr::CreateMod(LHS, RHS, Ctx);
- case Instruction::Shl: return MCBinaryExpr::CreateShl(LHS, RHS, Ctx);
- case Instruction::And: return MCBinaryExpr::CreateAnd(LHS, RHS, Ctx);
- case Instruction::Or: return MCBinaryExpr::CreateOr (LHS, RHS, Ctx);
- case Instruction::Xor: return MCBinaryExpr::CreateXor(LHS, RHS, Ctx);
+ case Instruction::Add: return MCBinaryExpr::createAdd(LHS, RHS, Ctx);
+ case Instruction::Sub: return MCBinaryExpr::createSub(LHS, RHS, Ctx);
+ case Instruction::Mul: return MCBinaryExpr::createMul(LHS, RHS, Ctx);
+ case Instruction::SDiv: return MCBinaryExpr::createDiv(LHS, RHS, Ctx);
+ case Instruction::SRem: return MCBinaryExpr::createMod(LHS, RHS, Ctx);
+ case Instruction::Shl: return MCBinaryExpr::createShl(LHS, RHS, Ctx);
+ case Instruction::And: return MCBinaryExpr::createAnd(LHS, RHS, Ctx);
+ case Instruction::Or: return MCBinaryExpr::createOr (LHS, RHS, Ctx);
+ case Instruction::Xor: return MCBinaryExpr::createXor(LHS, RHS, Ctx);
}
}
}
/// composed of a repeated sequence of identical bytes and return the
/// byte value. If it is not a repeated sequence, return -1.
static int isRepeatedByteSequence(const Value *V, TargetMachine &TM) {
-
if (const ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
- if (CI->getBitWidth() > 64) return -1;
-
- uint64_t Size =
- TM.getDataLayout()->getTypeAllocSize(V->getType());
- uint64_t Value = CI->getZExtValue();
+ uint64_t Size = TM.getDataLayout()->getTypeAllocSizeInBits(V->getType());
+ assert(Size % 8 == 0);
- // Make sure the constant is at least 8 bits long and has a power
- // of 2 bit width. This guarantees the constant bit width is
- // always a multiple of 8 bits, avoiding issues with padding out
- // to Size and other such corner cases.
- if (CI->getBitWidth() < 8 || !isPowerOf2_64(CI->getBitWidth())) return -1;
+ // Extend the element to take zero padding into account.
+ APInt Value = CI->getValue().zextOrSelf(Size);
+ if (!Value.isSplat(8))
+ return -1;
- uint8_t Byte = static_cast<uint8_t>(Value);
-
- for (unsigned i = 1; i < Size; ++i) {
- Value >>= 8;
- if (static_cast<uint8_t>(Value) != Byte) return -1;
- }
- return Byte;
+ return Value.zextOrTrunc(8).getZExtValue();
}
if (const ConstantArray *CA = dyn_cast<ConstantArray>(V)) {
// Make sure all array elements are sequences of the same repeated
// byte.
assert(CA->getNumOperands() != 0 && "Should be a CAZ");
- int Byte = isRepeatedByteSequence(CA->getOperand(0), TM);
- if (Byte == -1) return -1;
-
- for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
- int ThisByte = isRepeatedByteSequence(CA->getOperand(i), TM);
- if (ThisByte == -1) return -1;
- if (Byte != ThisByte) return -1;
- }
+ Constant *Op0 = CA->getOperand(0);
+ int Byte = isRepeatedByteSequence(Op0, TM);
+ if (Byte == -1)
+ return -1;
+
+ // All array elements must be equal.
+ for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i)
+ if (CA->getOperand(i) != Op0)
+ return -1;
return Byte;
}
// cstexpr := <gotequiv> - "." + <cst>
// cstexpr := <gotequiv> - (<foo> - <offset from @foo base>) + <cst>
//
- // After canonicalization by EvaluateAsRelocatable `ME` turns into:
+ // After canonicalization by evaluateAsRelocatable `ME` turns into:
//
// cstexpr := <gotequiv> - <foo> + gotpcrelcst, where
// gotpcrelcst := <offset from @foo base> + <cst>
//
MCValue MV;
- if (!(*ME)->EvaluateAsRelocatable(MV, nullptr, nullptr) || MV.isAbsolute())
+ if (!(*ME)->evaluateAsRelocatable(MV, nullptr, nullptr) || MV.isAbsolute())
+ return;
+ const MCSymbolRefExpr *SymA = MV.getSymA();
+ if (!SymA)
return;
- const MCSymbol *GOTEquivSym = &MV.getSymA()->getSymbol();
+ // Check that GOT equivalent symbol is cached.
+ const MCSymbol *GOTEquivSym = &SymA->getSymbol();
if (!AP.GlobalGOTEquivs.count(GOTEquivSym))
return;
if (!BaseGV)
return;
+ // Check for a valid base symbol
const MCSymbol *BaseSym = AP.getSymbol(BaseGV);
- if (BaseSym != &MV.getSymB()->getSymbol())
+ const MCSymbolRefExpr *SymB = MV.getSymB();
+
+ if (!SymB || BaseSym != &SymB->getSymbol())
return;
// Make sure to match:
TM);
}
-/// GetExternalSymbolSymbol - Return the MCSymbol for the specified
-/// ExternalSymbol.
+/// Return the MCSymbol for the specified ExternalSymbol.
MCSymbol *AsmPrinter::GetExternalSymbolSymbol(StringRef Sym) const {
SmallString<60> NameStr;
- Mang->getNameWithPrefix(NameStr, Sym);
+ Mangler::getNameWithPrefix(NameStr, Sym, *TM.getDataLayout());
return OutContext.getOrCreateSymbol(NameStr);
}
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