#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/DwarfWriter.h"
+#include "llvm/Analysis/DebugInfo.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Mangler.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLowering.h"
-#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/ADT/SmallPtrSet.h"
char AsmPrinter::ID = 0;
AsmPrinter::AsmPrinter(raw_ostream &o, TargetMachine &tm,
- const TargetAsmInfo *T, bool F, bool VDef)
- : MachineFunctionPass(&ID), FunctionNumber(0), Fast(F), O(o),
+ const TargetAsmInfo *T, bool VDef)
+ : MachineFunctionPass(&ID), FunctionNumber(0), O(o),
TM(tm), TAI(T), TRI(tm.getRegisterInfo()),
- IsInTextSection(false)
-{
+ IsInTextSection(false), LastMI(0), LastFn(0), Counter(~0U),
+ PrevDLT(0, ~0U, ~0U) {
+ DW = 0; MMI = 0;
switch (AsmVerbose) {
case cl::BOU_UNSET: VerboseAsm = VDef; break;
case cl::BOU_TRUE: VerboseAsm = true; break;
bool AsmPrinter::doInitialization(Module &M) {
Mang = new Mangler(M, TAI->getGlobalPrefix(), TAI->getPrivateGlobalPrefix());
+ if (TAI->doesAllowQuotesInName())
+ Mang->setUseQuotes(true);
+
GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>();
assert(MI && "AsmPrinter didn't require GCModuleInfo?");
SwitchToDataSection(""); // Reset back to no section.
- MachineModuleInfo *MMI = getAnalysisIfAvailable<MachineModuleInfo>();
- if (MMI) MMI->AnalyzeModule(M);
- DW = getAnalysisIfAvailable<DwarfWriter>();
+ if (TAI->doesSupportDebugInformation() ||
+ TAI->doesSupportExceptionHandling()) {
+ MMI = getAnalysisIfAvailable<MachineModuleInfo>();
+ if (MMI)
+ MMI->AnalyzeModule(M);
+ DW = getAnalysisIfAvailable<DwarfWriter>();
+ if (DW)
+ DW->BeginModule(&M, MMI, O, this, TAI);
+ }
+
return false;
}
bool AsmPrinter::doFinalization(Module &M) {
+ // Emit final debug information.
+ if (TAI->doesSupportDebugInformation() || TAI->doesSupportExceptionHandling())
+ DW->EndModule();
+
+ // If the target wants to know about weak references, print them all.
if (TAI->getWeakRefDirective()) {
- if (!ExtWeakSymbols.empty())
- SwitchToDataSection("");
-
- for (std::set<const GlobalValue*>::iterator i = ExtWeakSymbols.begin(),
- e = ExtWeakSymbols.end(); i != e; ++i)
- O << TAI->getWeakRefDirective() << Mang->getValueName(*i) << '\n';
+ // FIXME: This is not lazy, it would be nice to only print weak references
+ // to stuff that is actually used. Note that doing so would require targets
+ // to notice uses in operands (due to constant exprs etc). This should
+ // happen with the MC stuff eventually.
+ SwitchToDataSection("");
+
+ // Print out module-level global variables here.
+ for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; ++I) {
+ if (I->hasExternalWeakLinkage())
+ O << TAI->getWeakRefDirective() << Mang->getValueName(I) << '\n';
+ }
+
+ for (Module::const_iterator I = M.begin(), E = M.end();
+ I != E; ++I) {
+ if (I->hasExternalWeakLinkage())
+ O << TAI->getWeakRefDirective() << Mang->getValueName(I) << '\n';
+ }
}
if (TAI->getSetDirective()) {
O << '\n';
for (Module::const_alias_iterator I = M.alias_begin(), E = M.alias_end();
- I!=E; ++I) {
+ I != E; ++I) {
std::string Name = Mang->getValueName(I);
std::string Target;
else if (I->hasWeakLinkage())
O << TAI->getWeakRefDirective() << Name << '\n';
else if (!I->hasLocalLinkage())
- assert(0 && "Invalid alias linkage");
+ LLVM_UNREACHABLE("Invalid alias linkage");
printVisibility(Name, I->getVisibility());
// If we don't have any trampolines, then we don't require stack memory
// to be executable. Some targets have a directive to declare this.
- Function* InitTrampolineIntrinsic = M.getFunction("llvm.init.trampoline");
+ Function *InitTrampolineIntrinsic = M.getFunction("llvm.init.trampoline");
if (!InitTrampolineIntrinsic || InitTrampolineIntrinsic->use_empty())
if (TAI->getNonexecutableStackDirective())
O << TAI->getNonexecutableStackDirective() << '\n';
delete Mang; Mang = 0;
+ DW = 0; MMI = 0;
return false;
}
EmitZeros(NewOffset - Offset);
const Type *Ty = CPE.getType();
- Offset = NewOffset + TM.getTargetData()->getTypePaddedSize(Ty);
+ Offset = NewOffset + TM.getTargetData()->getTypeAllocSize(Ty);
O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_'
<< CPI << ":\t\t\t\t\t";
const char* JumpTableDataSection = TAI->getJumpTableDataSection();
const Function *F = MF.getFunction();
unsigned SectionFlags = TAI->SectionFlagsForGlobal(F);
+ bool JTInDiffSection = false;
if ((IsPic && !(LoweringInfo && LoweringInfo->usesGlobalOffsetTable())) ||
- !JumpTableDataSection ||
+ !JumpTableDataSection ||
SectionFlags & SectionFlags::Linkonce) {
// In PIC mode, we need to emit the jump table to the same section as the
// function body itself, otherwise the label differences won't make sense.
SwitchToSection(TAI->SectionForGlobal(F));
} else {
SwitchToDataSection(JumpTableDataSection);
+ JTInDiffSection = true;
}
EmitAlignment(Log2_32(MJTI->getAlignment()));
// before each jump table. The first label is never referenced, but tells
// the assembler and linker the extents of the jump table object. The
// second label is actually referenced by the code.
- if (const char *JTLabelPrefix = TAI->getJumpTableSpecialLabelPrefix())
- O << JTLabelPrefix << "JTI" << getFunctionNumber() << '_' << i << ":\n";
+ if (JTInDiffSection) {
+ if (const char *JTLabelPrefix = TAI->getJumpTableSpecialLabelPrefix())
+ O << JTLabelPrefix << "JTI" << getFunctionNumber() << '_' << i << ":\n";
+ }
O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << i << ":\n";
void AsmPrinter::EmitLLVMUsedList(Constant *List) {
const char *Directive = TAI->getUsedDirective();
- // Should be an array of 'sbyte*'.
+ // Should be an array of 'i8*'.
ConstantArray *InitList = dyn_cast<ConstantArray>(List);
if (InitList == 0) return;
case Instruction::SIToFP:
case Instruction::FPToUI:
case Instruction::FPToSI:
- assert(0 && "FIXME: Don't yet support this kind of constant cast expr");
+ LLVM_UNREACHABLE("FIXME: Don't yet support this kind of constant cast expr");
break;
case Instruction::BitCast:
return EmitConstantValueOnly(CE->getOperand(0));
// We can emit the pointer value into this slot if the slot is an
// integer slot greater or equal to the size of the pointer.
- if (TD->getTypePaddedSize(Ty) >= TD->getTypePaddedSize(Op->getType()))
+ if (TD->getTypeAllocSize(Ty) >= TD->getTypeAllocSize(Op->getType()))
return EmitConstantValueOnly(Op);
O << "((";
EmitConstantValueOnly(Op);
- APInt ptrMask = APInt::getAllOnesValue(TD->getTypePaddedSizeInBits(Ty));
+ APInt ptrMask = APInt::getAllOnesValue(TD->getTypeAllocSizeInBits(Ty));
SmallString<40> S;
ptrMask.toStringUnsigned(S);
O << ')';
break;
default:
- assert(0 && "Unsupported operator!");
+ LLVM_UNREACHABLE("Unsupported operator!");
}
} else {
- assert(0 && "Unknown constant value!");
+ LLVM_UNREACHABLE("Unknown constant value!");
}
}
unsigned AddrSpace) {
// Print the fields in successive locations. Pad to align if needed!
const TargetData *TD = TM.getTargetData();
- unsigned Size = TD->getTypePaddedSize(CVS->getType());
+ unsigned Size = TD->getTypeAllocSize(CVS->getType());
const StructLayout *cvsLayout = TD->getStructLayout(CVS->getType());
uint64_t sizeSoFar = 0;
for (unsigned i = 0, e = CVS->getNumOperands(); i != e; ++i) {
const Constant* field = CVS->getOperand(i);
// Check if padding is needed and insert one or more 0s.
- uint64_t fieldSize = TD->getTypePaddedSize(field->getType());
+ uint64_t fieldSize = TD->getTypeAllocSize(field->getType());
uint64_t padSize = ((i == e-1 ? Size : cvsLayout->getElementOffset(i+1))
- cvsLayout->getElementOffset(i)) - fieldSize;
sizeSoFar += fieldSize + padSize;
<< " long double most significant halfword";
O << '\n';
}
- EmitZeros(TD->getTypePaddedSize(Type::X86_FP80Ty) -
+ EmitZeros(TD->getTypeAllocSize(Type::X86_FP80Ty) -
TD->getTypeStoreSize(Type::X86_FP80Ty), AddrSpace);
return;
} else if (CFP->getType() == Type::PPC_FP128Ty) {
O << '\n';
}
return;
- } else assert(0 && "Floating point constant type not handled");
+ } else LLVM_UNREACHABLE("Floating point constant type not handled");
}
void AsmPrinter::EmitGlobalConstantLargeInt(const ConstantInt *CI,
void AsmPrinter::EmitGlobalConstant(const Constant *CV, unsigned AddrSpace) {
const TargetData *TD = TM.getTargetData();
const Type *type = CV->getType();
- unsigned Size = TD->getTypePaddedSize(type);
+ unsigned Size = TD->getTypeAllocSize(type);
if (CV->isNullValue() || isa<UndefValue>(CV)) {
EmitZeros(Size, AddrSpace);
void AsmPrinter::EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) {
// Target doesn't support this yet!
- abort();
+ LLVM_UNREACHABLE("Target does not support EmitMachineConstantPoolValue");
}
/// PrintSpecial - Print information related to the specified machine instr
if (VerboseAsm)
O << TAI->getCommentString();
} else if (!strcmp(Code, "uid")) {
- // Assign a unique ID to this machine instruction.
- static const MachineInstr *LastMI = 0;
- static const Function *F = 0;
- static unsigned Counter = 0U-1;
-
// Comparing the address of MI isn't sufficient, because machineinstrs may
// be allocated to the same address across functions.
const Function *ThisF = MI->getParent()->getParent()->getFunction();
- // If this is a new machine instruction, bump the counter.
- if (LastMI != MI || F != ThisF) {
+ // If this is a new LastFn instruction, bump the counter.
+ if (LastMI != MI || LastFn != ThisF) {
++Counter;
LastMI = MI;
- F = ThisF;
+ LastFn = ThisF;
}
O << Counter;
} else {
- cerr << "Unknown special formatter '" << Code
+ std::string msg;
+ raw_string_ostream Msg(msg);
+ Msg << "Unknown special formatter '" << Code
<< "' for machine instr: " << *MI;
- exit(1);
+ llvm_report_error(Msg.str());
}
}
+/// processDebugLoc - Processes the debug information of each machine
+/// instruction's DebugLoc.
+void AsmPrinter::processDebugLoc(DebugLoc DL) {
+ if (TAI->doesSupportDebugInformation() && DW->ShouldEmitDwarfDebug()) {
+ if (!DL.isUnknown()) {
+ DebugLocTuple CurDLT = MF->getDebugLocTuple(DL);
+
+ if (CurDLT.CompileUnit != 0 && PrevDLT != CurDLT)
+ printLabel(DW->RecordSourceLine(CurDLT.Line, CurDLT.Col,
+ DICompileUnit(CurDLT.CompileUnit)));
+
+ PrevDLT = CurDLT;
+ }
+ }
+}
/// printInlineAsm - This method formats and prints the specified machine
/// instruction that is an inline asm.
case '(': // $( -> same as GCC's { character.
++LastEmitted; // Consume '(' character.
if (CurVariant != -1) {
- cerr << "Nested variants found in inline asm string: '"
- << AsmStr << "'\n";
- exit(1);
+ llvm_report_error("Nested variants found in inline asm string: '"
+ + std::string(AsmStr) + "'");
}
CurVariant = 0; // We're in the first variant now.
break;
const char *StrStart = LastEmitted;
const char *StrEnd = strchr(StrStart, '}');
if (StrEnd == 0) {
- cerr << "Unterminated ${:foo} operand in inline asm string: '"
- << AsmStr << "'\n";
- exit(1);
+ llvm_report_error("Unterminated ${:foo} operand in inline asm string: '"
+ + std::string(AsmStr) + "'");
}
std::string Val(StrStart, StrEnd);
errno = 0;
long Val = strtol(IDStart, &IDEnd, 10); // We only accept numbers for IDs.
if (!isdigit(*IDStart) || (Val == 0 && errno == EINVAL)) {
- cerr << "Bad $ operand number in inline asm string: '"
- << AsmStr << "'\n";
- exit(1);
+ llvm_report_error("Bad $ operand number in inline asm string: '"
+ + std::string(AsmStr) + "'");
}
LastEmitted = IDEnd;
if (*LastEmitted == ':') {
++LastEmitted; // Consume ':' character.
if (*LastEmitted == 0) {
- cerr << "Bad ${:} expression in inline asm string: '"
- << AsmStr << "'\n";
- exit(1);
+ llvm_report_error("Bad ${:} expression in inline asm string: '"
+ + std::string(AsmStr) + "'");
}
Modifier[0] = *LastEmitted;
}
if (*LastEmitted != '}') {
- cerr << "Bad ${} expression in inline asm string: '"
- << AsmStr << "'\n";
- exit(1);
+ llvm_report_error("Bad ${} expression in inline asm string: '"
+ + std::string(AsmStr) + "'");
}
++LastEmitted; // Consume '}' character.
}
if ((unsigned)Val >= NumOperands-1) {
- cerr << "Invalid $ operand number in inline asm string: '"
- << AsmStr << "'\n";
- exit(1);
+ llvm_report_error("Invalid $ operand number in inline asm string: '"
+ + std::string(AsmStr) + "'");
}
// Okay, we finally have a value number. Ask the target to print this
}
}
if (Error) {
- cerr << "Invalid operand found in inline asm: '"
+ std::string msg;
+ raw_string_ostream Msg(msg);
+ Msg << "Invalid operand found in inline asm: '"
<< AsmStr << "'\n";
- MI->dump();
- exit(1);
+ MI->print(Msg);
+ llvm_report_error(Msg.str());
}
}
break;
"Target cannot handle 64-bit constant exprs!");
O << TAI->getData64bitsDirective(AddrSpace);
} else {
- assert(0 && "Target cannot handle given data directive width!");
+ LLVM_UNREACHABLE("Target cannot handle given data directive width!");
}
break;
}
}
cerr << "no GCMetadataPrinter registered for GC: " << Name << "\n";
- abort();
+ llvm_unreachable();
}
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