#include "llvm/DerivedTypes.h"
#include "llvm/Constants.h"
#include "llvm/Module.h"
+#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/CodeGen/GCMetadataPrinter.h"
#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/Mangler.h"
#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/Target/Mangler.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
#include <cerrno>
using namespace llvm;
TM(tm), MAI(T), TRI(tm.getRegisterInfo()),
OutContext(*new MCContext()),
- OutStreamer(*createAsmStreamer(OutContext, O, *T, this)),
+ // FIXME: Pass instprinter to streamer.
+ OutStreamer(*createAsmStreamer(OutContext, O, *T, 0)),
- LastMI(0), LastFn(0), Counter(~0U),
- PrevDLT(0, ~0U, ~0U) {
+ LastMI(0), LastFn(0), Counter(~0U), PrevDLT(NULL) {
DW = 0; MMI = 0;
switch (AsmVerbose) {
case cl::BOU_UNSET: VerboseAsm = VDef; break;
const_cast<TargetLoweringObjectFile&>(getObjFileLowering())
.Initialize(OutContext, TM);
- Mang = new Mangler(M, MAI->getGlobalPrefix(), MAI->getPrivateGlobalPrefix(),
- MAI->getLinkerPrivateGlobalPrefix());
+ Mang = new Mangler(*MAI);
- if (MAI->doesAllowQuotesInName())
- Mang->setUseQuotes(true);
-
- GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>();
- assert(MI && "AsmPrinter didn't require GCModuleInfo?");
+ // Allow the target to emit any magic that it wants at the start of the file.
+ EmitStartOfAsmFile(M);
if (MAI->hasSingleParameterDotFile()) {
/* Very minimal debug info. It is ignored if we emit actual
- debug info. If we don't, this at helps the user find where
+ debug info. If we don't, this at least helps the user find where
a function came from. */
O << "\t.file\t\"" << M.getModuleIdentifier() << "\"\n";
}
+ GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>();
+ assert(MI && "AsmPrinter didn't require GCModuleInfo?");
for (GCModuleInfo::iterator I = MI->begin(), E = MI->end(); I != E; ++I)
if (GCMetadataPrinter *MP = GetOrCreateGCPrinter(*I))
MP->beginAssembly(O, *this, *MAI);
<< '\n' << MAI->getCommentString()
<< " End of file scope inline assembly\n";
- if (MAI->doesSupportDebugInformation() ||
- MAI->doesSupportExceptionHandling()) {
- MMI = getAnalysisIfAvailable<MachineModuleInfo>();
- if (MMI)
- MMI->AnalyzeModule(M);
- DW = getAnalysisIfAvailable<DwarfWriter>();
- if (DW)
- DW->BeginModule(&M, MMI, O, this, MAI);
- }
+ MMI = getAnalysisIfAvailable<MachineModuleInfo>();
+ if (MMI)
+ MMI->AnalyzeModule(M);
+ DW = getAnalysisIfAvailable<DwarfWriter>();
+ if (DW)
+ DW->BeginModule(&M, MMI, O, this, MAI);
return false;
}
+/// EmitGlobalVariable - Emit the specified global variable to the .s file.
+void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
+ if (!GV->hasInitializer()) // External globals require no code.
+ return;
+
+ // Check to see if this is a special global used by LLVM, if so, emit it.
+ if (EmitSpecialLLVMGlobal(GV))
+ return;
+
+ MCSymbol *GVSym = GetGlobalValueSymbol(GV);
+ printVisibility(GVSym, GV->getVisibility());
+
+ if (MAI->hasDotTypeDotSizeDirective()) {
+ O << "\t.type\t" << *GVSym;
+ if (MAI->getCommentString()[0] != '@')
+ O << ",@object\n";
+ else
+ O << ",%object\n";
+ }
+
+ SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
+
+ const TargetData *TD = TM.getTargetData();
+ unsigned Size = TD->getTypeAllocSize(GV->getType()->getElementType());
+ unsigned AlignLog = TD->getPreferredAlignmentLog(GV);
+
+ // Handle common and BSS local symbols (.lcomm).
+ if (GVKind.isCommon() || GVKind.isBSSLocal()) {
+ if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
+
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ WriteAsOperand(O, GV, /*PrintType=*/false, GV->getParent());
+ }
+ if (GVKind.isCommon()) {
+ // .comm _foo, 42, 4
+ O << MAI->getCOMMDirective() << *GVSym << ',' << Size;
+ if (MAI->getCOMMDirectiveTakesAlignment())
+ O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << AlignLog) : AlignLog);
+ } else if (const char *LComm = MAI->getLCOMMDirective()) {
+ // .lcomm _foo, 42, 4
+ O << LComm << *GVSym << ',' << Size;
+ if (MAI->getLCOMMDirectiveTakesAlignment())
+ O << ',' << AlignLog;
+ } else {
+ // .local _foo
+ O << "\t.local\t" << *GVSym << '\n';
+ // .comm _foo, 42, 4
+ O << MAI->getCOMMDirective() << *GVSym << ',' << Size;
+ if (MAI->getCOMMDirectiveTakesAlignment())
+ O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << AlignLog) : AlignLog);
+ }
+ O << '\n';
+ return;
+ }
+
+ const MCSection *TheSection =
+ getObjFileLowering().SectionForGlobal(GV, GVKind, Mang, TM);
+
+ // Handle the zerofill directive on darwin, which is a special form of BSS
+ // emission.
+ if (GVKind.isBSSExtern() && MAI->hasMachoZeroFillDirective()) {
+ // .globl _foo
+ OutStreamer.EmitSymbolAttribute(GVSym, MCStreamer::Global);
+ // .zerofill __DATA, __common, _foo, 400, 5
+ OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog);
+ return;
+ }
+
+ OutStreamer.SwitchSection(TheSection);
+
+ // TODO: Factor into an 'emit linkage' thing that is shared with function
+ // bodies.
+ switch (GV->getLinkage()) {
+ case GlobalValue::CommonLinkage:
+ case GlobalValue::LinkOnceAnyLinkage:
+ case GlobalValue::LinkOnceODRLinkage:
+ case GlobalValue::WeakAnyLinkage:
+ case GlobalValue::WeakODRLinkage:
+ case GlobalValue::LinkerPrivateLinkage:
+ if (const char *WeakDef = MAI->getWeakDefDirective()) {
+ // .globl _foo
+ OutStreamer.EmitSymbolAttribute(GVSym, MCStreamer::Global);
+ // .weak_definition _foo
+ O << WeakDef << *GVSym << '\n';
+ } else if (const char *LinkOnce = MAI->getLinkOnceDirective()) {
+ // .globl _foo
+ OutStreamer.EmitSymbolAttribute(GVSym, MCStreamer::Global);
+ // .linkonce same_size
+ O << LinkOnce;
+ } else
+ O << "\t.weak\t" << *GVSym << '\n';
+ break;
+ case GlobalValue::DLLExportLinkage:
+ case GlobalValue::AppendingLinkage:
+ // FIXME: appending linkage variables should go into a section of
+ // their name or something. For now, just emit them as external.
+ case GlobalValue::ExternalLinkage:
+ // If external or appending, declare as a global symbol.
+ // .globl _foo
+ OutStreamer.EmitSymbolAttribute(GVSym, MCStreamer::Global);
+ break;
+ case GlobalValue::PrivateLinkage:
+ case GlobalValue::InternalLinkage:
+ break;
+ default:
+ llvm_unreachable("Unknown linkage type!");
+ }
+
+ EmitAlignment(AlignLog, GV);
+ O << *GVSym << ":";
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ WriteAsOperand(O, GV, /*PrintType=*/false, GV->getParent());
+ }
+ O << '\n';
+
+ EmitGlobalConstant(GV->getInitializer());
+
+ if (MAI->hasDotTypeDotSizeDirective())
+ O << "\t.size\t" << *GVSym << ", " << Size << '\n';
+}
+
+
bool AsmPrinter::doFinalization(Module &M) {
// Emit global variables.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I)
- PrintGlobalVariable(I);
+ EmitGlobalVariable(I);
// Emit final debug information.
if (MAI->doesSupportDebugInformation() || MAI->doesSupportExceptionHandling())
// 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 << MAI->getWeakRefDirective() << Mang->getMangledName(I) << '\n';
+ if (!I->hasExternalWeakLinkage()) continue;
+ O << MAI->getWeakRefDirective() << *GetGlobalValueSymbol(I) << '\n';
}
for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I) {
- if (I->hasExternalWeakLinkage())
- O << MAI->getWeakRefDirective() << Mang->getMangledName(I) << '\n';
+ if (!I->hasExternalWeakLinkage()) continue;
+ O << MAI->getWeakRefDirective() << *GetGlobalValueSymbol(I) << '\n';
}
}
O << '\n';
for (Module::const_alias_iterator I = M.alias_begin(), E = M.alias_end();
I != E; ++I) {
- std::string Name = Mang->getMangledName(I);
+ MCSymbol *Name = GetGlobalValueSymbol(I);
const GlobalValue *GV = cast<GlobalValue>(I->getAliasedGlobal());
- std::string Target = Mang->getMangledName(GV);
+ MCSymbol *Target = GetGlobalValueSymbol(GV);
if (I->hasExternalLinkage() || !MAI->getWeakRefDirective())
- O << "\t.globl\t" << Name << '\n';
+ O << "\t.globl\t" << *Name << '\n';
else if (I->hasWeakLinkage())
- O << MAI->getWeakRefDirective() << Name << '\n';
- else if (!I->hasLocalLinkage())
- llvm_unreachable("Invalid alias linkage");
+ O << MAI->getWeakRefDirective() << *Name << '\n';
+ else
+ assert(I->hasLocalLinkage() && "Invalid alias linkage");
printVisibility(Name, I->getVisibility());
- O << MAI->getSetDirective() << ' ' << Name << ", " << Target << '\n';
+ O << MAI->getSetDirective() << ' ' << *Name << ", " << *Target << '\n';
}
}
if (MAI->getNonexecutableStackDirective())
O << MAI->getNonexecutableStackDirective() << '\n';
+
+ // Allow the target to emit any magic that it wants at the end of the file,
+ // after everything else has gone out.
+ EmitEndOfAsmFile(M);
+
delete Mang; Mang = 0;
DW = 0; MMI = 0;
return false;
}
-std::string
-AsmPrinter::getCurrentFunctionEHName(const MachineFunction *MF) const {
- assert(MF && "No machine function?");
- return Mang->getMangledName(MF->getFunction(), ".eh",
- MAI->is_EHSymbolPrivate());
-}
-
void AsmPrinter::SetupMachineFunction(MachineFunction &MF) {
- // What's my mangled name?
- CurrentFnName = Mang->getMangledName(MF.getFunction());
+ // Get the function symbol.
+ CurrentFnSym = GetGlobalValueSymbol(MF.getFunction());
IncrementFunctionNumber();
- if (VerboseAsm) {
+ if (VerboseAsm)
LI = &getAnalysis<MachineLoopInfo>();
- }
}
namespace {
const MCSection *S;
unsigned Alignment;
SmallVector<unsigned, 4> CPEs;
- SectionCPs(const MCSection *s, unsigned a) : S(s), Alignment(a) {};
+ SectionCPs(const MCSection *s, unsigned a) : S(s), Alignment(a) {}
};
}
if (EmittedSets.insert(JTBBs[ii]))
printPICJumpTableSetLabel(i, JTBBs[ii]);
- // On some targets (e.g. darwin) we want to emit two consequtive labels
+ // On some targets (e.g. Darwin) we want to emit two consequtive labels
// 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 (JTInDiffSection) {
- if (const char *JTLabelPrefix = MAI->getJumpTableSpecialLabelPrefix())
- O << JTLabelPrefix << "JTI" << getFunctionNumber() << '_' << i << ":\n";
+ if (JTInDiffSection && MAI->getLinkerPrivateGlobalPrefix()[0]) {
+ O << MAI->getLinkerPrivateGlobalPrefix()
+ << "JTI" << getFunctionNumber() << '_' << i << ":\n";
}
O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
// If we're emitting non-PIC code, then emit the entries as direct
// references to the target basic blocks.
if (!isPIC) {
- printBasicBlockLabel(MBB, false, false, false);
+ O << *GetMBBSymbol(MBB->getNumber());
} else if (MAI->getSetDirective()) {
O << MAI->getPrivateGlobalPrefix() << getFunctionNumber()
<< '_' << uid << "_set_" << MBB->getNumber();
} else {
- printBasicBlockLabel(MBB, false, false, false);
+ O << *GetMBBSymbol(MBB->getNumber());
// If the arch uses custom Jump Table directives, don't calc relative to
// JT
if (!HadJTEntryDirective)
OutStreamer.SwitchSection(getObjFileLowering().getStaticCtorSection());
EmitAlignment(Align, 0);
EmitXXStructorList(GV->getInitializer());
+
+ if (TM.getRelocationModel() == Reloc::Static &&
+ MAI->hasStaticCtorDtorReferenceInStaticMode())
+ O << ".reference .constructors_used\n";
return true;
}
OutStreamer.SwitchSection(getObjFileLowering().getStaticDtorSection());
EmitAlignment(Align, 0);
EmitXXStructorList(GV->getInitializer());
+
+ if (TM.getRelocationModel() == Reloc::Static &&
+ MAI->hasStaticCtorDtorReferenceInStaticMode())
+ O << ".reference .destructors_used\n";
return true;
}
}
}
-/// getGlobalLinkName - Returns the asm/link name of of the specified
-/// global variable. Should be overridden by each target asm printer to
-/// generate the appropriate value.
-const std::string &AsmPrinter::getGlobalLinkName(const GlobalVariable *GV,
- std::string &LinkName) const {
- if (isa<Function>(GV)) {
- LinkName += MAI->getFunctionAddrPrefix();
- LinkName += Mang->getMangledName(GV);
- LinkName += MAI->getFunctionAddrSuffix();
- } else {
- LinkName += MAI->getGlobalVarAddrPrefix();
- LinkName += Mang->getMangledName(GV);
- LinkName += MAI->getGlobalVarAddrSuffix();
- }
-
- return LinkName;
-}
-
-/// EmitExternalGlobal - Emit the external reference to a global variable.
-/// Should be overridden if an indirect reference should be used.
-void AsmPrinter::EmitExternalGlobal(const GlobalVariable *GV) {
- std::string GLN;
- O << getGlobalLinkName(GV, GLN);
-}
-
-
//===----------------------------------------------------------------------===//
/// LEB 128 number encoding.
-/// PrintULEB128 - Print a series of hexidecimal values (separated by commas)
+/// PrintULEB128 - Print a series of hexadecimal values (separated by commas)
/// representing an unsigned leb128 value.
void AsmPrinter::PrintULEB128(unsigned Value) const {
- char Buffer[20];
do {
unsigned char Byte = static_cast<unsigned char>(Value & 0x7f);
Value >>= 7;
if (Value) Byte |= 0x80;
- O << "0x" << utohex_buffer(Byte, Buffer+20);
+ PrintHex(Byte);
if (Value) O << ", ";
} while (Value);
}
-/// PrintSLEB128 - Print a series of hexidecimal values (separated by commas)
+/// PrintSLEB128 - Print a series of hexadecimal values (separated by commas)
/// representing a signed leb128 value.
void AsmPrinter::PrintSLEB128(int Value) const {
int Sign = Value >> (8 * sizeof(Value) - 1);
bool IsMore;
- char Buffer[20];
do {
unsigned char Byte = static_cast<unsigned char>(Value & 0x7f);
Value >>= 7;
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
if (IsMore) Byte |= 0x80;
- O << "0x" << utohex_buffer(Byte, Buffer+20);
+ PrintHex(Byte);
if (IsMore) O << ", ";
} while (IsMore);
}
// Emission and print routines
//
-/// PrintHex - Print a value as a hexidecimal value.
+/// PrintHex - Print a value as a hexadecimal value.
///
-void AsmPrinter::PrintHex(int Value) const {
- char Buffer[20];
- O << "0x" << utohex_buffer(static_cast<unsigned>(Value), Buffer+20);
+void AsmPrinter::PrintHex(uint64_t Value) const {
+ O << "0x";
+ O.write_hex(Value);
}
/// EOL - Print a newline character to asm stream. If a comment is present
O << '\n';
}
-void AsmPrinter::EOL(const std::string &Comment) const {
- if (VerboseAsm && !Comment.empty()) {
+void AsmPrinter::EOL(const Twine &Comment) const {
+ if (VerboseAsm && !Comment.isTriviallyEmpty()) {
O.PadToColumn(MAI->getCommentColumn());
O << MAI->getCommentString()
<< ' '
O << '\n';
}
-void AsmPrinter::EOL(const char* Comment) const {
- if (VerboseAsm && *Comment) {
+static const char *DecodeDWARFEncoding(unsigned Encoding) {
+ switch (Encoding) {
+ case dwarf::DW_EH_PE_absptr:
+ return "absptr";
+ case dwarf::DW_EH_PE_omit:
+ return "omit";
+ case dwarf::DW_EH_PE_pcrel:
+ return "pcrel";
+ case dwarf::DW_EH_PE_udata4:
+ return "udata4";
+ case dwarf::DW_EH_PE_udata8:
+ return "udata8";
+ case dwarf::DW_EH_PE_sdata4:
+ return "sdata4";
+ case dwarf::DW_EH_PE_sdata8:
+ return "sdata8";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata4:
+ return "pcrel udata4";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4:
+ return "pcrel sdata4";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8:
+ return "pcrel udata8";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8:
+ return "pcrel sdata8";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_udata4:
+ return "indirect pcrel udata4";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata4:
+ return "indirect pcrel sdata4";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_udata8:
+ return "indirect pcrel udata8";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata8:
+ return "indirect pcrel sdata8";
+ }
+
+ return 0;
+}
+
+void AsmPrinter::EOL(const Twine &Comment, unsigned Encoding) const {
+ if (VerboseAsm && !Comment.isTriviallyEmpty()) {
O.PadToColumn(MAI->getCommentColumn());
O << MAI->getCommentString()
<< ' '
<< Comment;
+
+ if (const char *EncStr = DecodeDWARFEncoding(Encoding))
+ O << " (" << EncStr << ')';
}
O << '\n';
}
/// EmitString - Emit a string with quotes and a null terminator.
/// Special characters are emitted properly.
/// \literal (Eg. '\t') \endliteral
-void AsmPrinter::EmitString(const std::string &String) const {
- EmitString(String.c_str(), String.size());
+void AsmPrinter::EmitString(const StringRef String) const {
+ EmitString(String.data(), String.size());
}
void AsmPrinter::EmitString(const char *String, unsigned Size) const {
/// EmitFile - Emit a .file directive.
-void AsmPrinter::EmitFile(unsigned Number, const std::string &Name) const {
+void AsmPrinter::EmitFile(unsigned Number, StringRef Name) const {
O << "\t.file\t" << Number << " \"";
for (unsigned i = 0, N = Name.size(); i < N; ++i)
printStringChar(O, Name[i]);
// Print out the specified constant, without a storage class. Only the
// constants valid in constant expressions can occur here.
void AsmPrinter::EmitConstantValueOnly(const Constant *CV) {
- if (CV->isNullValue() || isa<UndefValue>(CV))
+ if (CV->isNullValue() || isa<UndefValue>(CV)) {
O << '0';
- else if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
+ return;
+ }
+
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
O << CI->getZExtValue();
- } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV)) {
+ return;
+ }
+
+ if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV)) {
// This is a constant address for a global variable or function. Use the
- // name of the variable or function as the address value, possibly
- // decorating it with GlobalVarAddrPrefix/Suffix or
- // FunctionAddrPrefix/Suffix (these all default to "" )
- if (isa<Function>(GV)) {
- O << MAI->getFunctionAddrPrefix()
- << Mang->getMangledName(GV)
- << MAI->getFunctionAddrSuffix();
- } else {
- O << MAI->getGlobalVarAddrPrefix()
- << Mang->getMangledName(GV)
- << MAI->getGlobalVarAddrSuffix();
- }
- } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
+ // name of the variable or function as the address value.
+ O << *GetGlobalValueSymbol(GV);
+ return;
+ }
+
+ if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
+ O << *GetBlockAddressSymbol(BA);
+ return;
+ }
+
+ const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV);
+ if (CE == 0) {
+ llvm_unreachable("Unknown constant value!");
+ O << '0';
+ return;
+ }
+
+ switch (CE->getOpcode()) {
+ case Instruction::ZExt:
+ case Instruction::SExt:
+ case Instruction::FPTrunc:
+ case Instruction::FPExt:
+ case Instruction::UIToFP:
+ case Instruction::SIToFP:
+ case Instruction::FPToUI:
+ case Instruction::FPToSI:
+ default:
+ llvm_unreachable("FIXME: Don't support this constant cast expr");
+ case Instruction::GetElementPtr: {
+ // generate a symbolic expression for the byte address
const TargetData *TD = TM.getTargetData();
- unsigned Opcode = CE->getOpcode();
- switch (Opcode) {
- case Instruction::Trunc:
- case Instruction::ZExt:
- case Instruction::SExt:
- case Instruction::FPTrunc:
- case Instruction::FPExt:
- case Instruction::UIToFP:
- case Instruction::SIToFP:
- case Instruction::FPToUI:
- case Instruction::FPToSI:
- llvm_unreachable("FIXME: Don't support this constant cast expr");
- case Instruction::GetElementPtr: {
- // generate a symbolic expression for the byte address
- const Constant *ptrVal = CE->getOperand(0);
- SmallVector<Value*, 8> idxVec(CE->op_begin()+1, CE->op_end());
- if (int64_t Offset = TD->getIndexedOffset(ptrVal->getType(), &idxVec[0],
- idxVec.size())) {
- // Truncate/sext the offset to the pointer size.
- if (TD->getPointerSizeInBits() != 64) {
- int SExtAmount = 64-TD->getPointerSizeInBits();
- Offset = (Offset << SExtAmount) >> SExtAmount;
- }
-
- if (Offset)
- O << '(';
- EmitConstantValueOnly(ptrVal);
- if (Offset > 0)
- O << ") + " << Offset;
- else if (Offset < 0)
- O << ") - " << -Offset;
- } else {
- EmitConstantValueOnly(ptrVal);
- }
- break;
+ const Constant *ptrVal = CE->getOperand(0);
+ SmallVector<Value*, 8> idxVec(CE->op_begin()+1, CE->op_end());
+ int64_t Offset = TD->getIndexedOffset(ptrVal->getType(), &idxVec[0],
+ idxVec.size());
+ if (Offset == 0)
+ return EmitConstantValueOnly(ptrVal);
+
+ // Truncate/sext the offset to the pointer size.
+ if (TD->getPointerSizeInBits() != 64) {
+ int SExtAmount = 64-TD->getPointerSizeInBits();
+ Offset = (Offset << SExtAmount) >> SExtAmount;
}
- case Instruction::BitCast:
- return EmitConstantValueOnly(CE->getOperand(0));
-
- case Instruction::IntToPtr: {
- // 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);
- Op = ConstantExpr::getIntegerCast(Op, TD->getIntPtrType(CV->getContext()),
- false/*ZExt*/);
+
+ if (Offset)
+ O << '(';
+ EmitConstantValueOnly(ptrVal);
+ if (Offset > 0)
+ O << ") + " << Offset;
+ else
+ O << ") - " << -Offset;
+ return;
+ }
+ case Instruction::BitCast:
+ return EmitConstantValueOnly(CE->getOperand(0));
+
+ case Instruction::IntToPtr: {
+ // Handle casts to pointers by changing them into casts to the appropriate
+ // integer type. This promotes constant folding and simplifies this code.
+ const TargetData *TD = TM.getTargetData();
+ Constant *Op = CE->getOperand(0);
+ Op = ConstantExpr::getIntegerCast(Op, TD->getIntPtrType(CV->getContext()),
+ false/*ZExt*/);
+ return EmitConstantValueOnly(Op);
+ }
+
+ case Instruction::PtrToInt: {
+ // 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);
+ const Type *Ty = CE->getType();
+ const TargetData *TD = TM.getTargetData();
+
+ // 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->getTypeAllocSize(Ty) == TD->getTypeAllocSize(Op->getType()))
return EmitConstantValueOnly(Op);
- }
-
+
+ O << "((";
+ EmitConstantValueOnly(Op);
+ APInt ptrMask =
+ APInt::getAllOnesValue(TD->getTypeAllocSizeInBits(Op->getType()));
+
+ SmallString<40> S;
+ ptrMask.toStringUnsigned(S);
+ O << ") & " << S.str() << ')';
+ return;
+ }
- case Instruction::PtrToInt: {
- // 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);
- const Type *Ty = CE->getType();
-
- // 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->getTypeAllocSize(Ty) == TD->getTypeAllocSize(Op->getType()))
- return EmitConstantValueOnly(Op);
-
- O << "((";
- EmitConstantValueOnly(Op);
- APInt ptrMask =
- APInt::getAllOnesValue(TD->getTypeAllocSizeInBits(Op->getType()));
+ case Instruction::Trunc:
+ // We emit the value and depend on the assembler to truncate the generated
+ // expression properly. This is important for differences between
+ // blockaddress labels. Since the two labels are in the same function, it
+ // is reasonable to treat their delta as a 32-bit value.
+ return EmitConstantValueOnly(CE->getOperand(0));
- SmallString<40> S;
- ptrMask.toStringUnsigned(S);
- O << ") & " << S.str() << ')';
- break;
- }
+ case Instruction::Add:
+ case Instruction::Sub:
+ case Instruction::And:
+ case Instruction::Or:
+ case Instruction::Xor:
+ O << '(';
+ EmitConstantValueOnly(CE->getOperand(0));
+ O << ')';
+ switch (CE->getOpcode()) {
case Instruction::Add:
+ O << " + ";
+ break;
case Instruction::Sub:
+ O << " - ";
+ break;
case Instruction::And:
+ O << " & ";
+ break;
case Instruction::Or:
+ O << " | ";
+ break;
case Instruction::Xor:
- O << '(';
- EmitConstantValueOnly(CE->getOperand(0));
- O << ')';
- switch (Opcode) {
- case Instruction::Add:
- O << " + ";
- break;
- case Instruction::Sub:
- O << " - ";
- break;
- case Instruction::And:
- O << " & ";
- break;
- case Instruction::Or:
- O << " | ";
- break;
- case Instruction::Xor:
- O << " ^ ";
- break;
- default:
- break;
- }
- O << '(';
- EmitConstantValueOnly(CE->getOperand(1));
- O << ')';
- break;
+ O << " ^ ";
+ break;
default:
- llvm_unreachable("Unsupported operator!");
+ break;
}
- } else {
- llvm_unreachable("Unknown constant value!");
+ O << '(';
+ EmitConstantValueOnly(CE->getOperand(1));
+ O << ')';
+ break;
}
}
// precision...
LLVMContext &Context = CFP->getContext();
const TargetData *TD = TM.getTargetData();
- if (CFP->getType() == Type::getDoubleTy(Context)) {
+ if (CFP->getType()->isDoubleTy()) {
double Val = CFP->getValueAPF().convertToDouble(); // for comment only
uint64_t i = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
if (MAI->getData64bitsDirective(AddrSpace)) {
O << '\n';
}
return;
- } else if (CFP->getType() == Type::getFloatTy(Context)) {
+ }
+
+ if (CFP->getType()->isFloatTy()) {
float Val = CFP->getValueAPF().convertToFloat(); // for comment only
O << MAI->getData32bitsDirective(AddrSpace)
<< CFP->getValueAPF().bitcastToAPInt().getZExtValue();
}
O << '\n';
return;
- } else if (CFP->getType() == Type::getX86_FP80Ty(Context)) {
+ }
+
+ if (CFP->getType()->isX86_FP80Ty()) {
// all long double variants are printed as hex
// api needed to prevent premature destruction
APInt api = CFP->getValueAPF().bitcastToAPInt();
EmitZeros(TD->getTypeAllocSize(Type::getX86_FP80Ty(Context)) -
TD->getTypeStoreSize(Type::getX86_FP80Ty(Context)), AddrSpace);
return;
- } else if (CFP->getType() == Type::getPPC_FP128Ty(Context)) {
+ }
+
+ if (CFP->getType()->isPPC_FP128Ty()) {
// all long double variants are printed as hex
// api needed to prevent premature destruction
APInt api = CFP->getValueAPF().bitcastToAPInt();
unsigned AddrSpace) {
const TargetData *TD = TM.getTargetData();
unsigned BitWidth = CI->getBitWidth();
- assert(isPowerOf2_32(BitWidth) &&
- "Non-power-of-2-sized integers not handled!");
+ assert((BitWidth & 63) == 0 && "only support multiples of 64-bits");
// We don't expect assemblers to support integer data directives
// for more than 64 bits, so we emit the data in at most 64-bit
else
Val = RawData[i];
- if (MAI->getData64bitsDirective(AddrSpace))
+ if (MAI->getData64bitsDirective(AddrSpace)) {
O << MAI->getData64bitsDirective(AddrSpace) << Val << '\n';
- else if (TD->isBigEndian()) {
- O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val >> 32);
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString()
- << " most significant half of i64 " << Val;
- }
- O << '\n';
- O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val);
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString()
- << " least significant half of i64 " << Val;
- }
- O << '\n';
- } else {
- O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val);
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString()
- << " least significant half of i64 " << Val;
- }
- O << '\n';
- O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val >> 32);
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString()
- << " most significant half of i64 " << Val;
- }
- O << '\n';
+ continue;
}
+
+ // Emit two 32-bit chunks, order depends on endianness.
+ unsigned FirstChunk = unsigned(Val), SecondChunk = unsigned(Val >> 32);
+ const char *FirstName = " least", *SecondName = " most";
+ if (TD->isBigEndian()) {
+ std::swap(FirstChunk, SecondChunk);
+ std::swap(FirstName, SecondName);
+ }
+
+ O << MAI->getData32bitsDirective(AddrSpace) << FirstChunk;
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString()
+ << FirstName << " significant half of i64 " << Val;
+ }
+ O << '\n';
+
+ O << MAI->getData32bitsDirective(AddrSpace) << SecondChunk;
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString()
+ << SecondName << " significant half of i64 " << Val;
+ }
+ O << '\n';
}
}
if (CV->isNullValue() || isa<UndefValue>(CV)) {
EmitZeros(Size, AddrSpace);
return;
- } else if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV)) {
+ }
+
+ if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV)) {
EmitGlobalConstantArray(CVA , AddrSpace);
return;
- } else if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV)) {
+ }
+
+ if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV)) {
EmitGlobalConstantStruct(CVS, AddrSpace);
return;
- } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
+ }
+
+ if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
EmitGlobalConstantFP(CFP, AddrSpace);
return;
- } else if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
+ }
+
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
+ // If we can directly emit an 8-byte constant, do it.
+ if (Size == 8)
+ if (const char *Data64Dir = MAI->getData64bitsDirective(AddrSpace)) {
+ O << Data64Dir << CI->getZExtValue() << '\n';
+ return;
+ }
+
// Small integers are handled below; large integers are handled here.
if (Size > 4) {
EmitGlobalConstantLargeInt(CI, AddrSpace);
return;
}
- } else if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
+ }
+
+ if (const ConstantVector *CP = dyn_cast<ConstantVector>(CV)) {
EmitGlobalConstantVector(CP);
return;
}
/// processDebugLoc - Processes the debug information of each machine
/// instruction's DebugLoc.
-void AsmPrinter::processDebugLoc(DebugLoc DL) {
- if (!MAI || !DW)
+void AsmPrinter::processDebugLoc(const MachineInstr *MI,
+ bool BeforePrintingInsn) {
+ if (!MAI || !DW || !MAI->doesSupportDebugInformation()
+ || !DW->ShouldEmitDwarfDebug())
+ return;
+ DebugLoc DL = MI->getDebugLoc();
+ if (DL.isUnknown())
+ return;
+ DILocation CurDLT = MF->getDILocation(DL);
+ if (CurDLT.getScope().isNull())
return;
-
- if (MAI->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)));
+ if (BeforePrintingInsn) {
+ if (CurDLT.getNode() != PrevDLT.getNode()) {
+ unsigned L = DW->RecordSourceLine(CurDLT.getLineNumber(),
+ CurDLT.getColumnNumber(),
+ CurDLT.getScope().getNode());
+ printLabel(L);
+ O << '\n';
+ DW->BeginScope(MI, L);
PrevDLT = CurDLT;
}
+ } else {
+ // After printing instruction
+ DW->EndScope(MI);
}
}
+
/// printInlineAsm - This method formats and prints the specified machine
/// instruction that is an inline asm.
void AsmPrinter::printInlineAsm(const MachineInstr *MI) const {
// Disassemble the AsmStr, printing out the literal pieces, the operands, etc.
const char *AsmStr = MI->getOperand(NumDefs).getSymbolName();
+ O << '\t';
+
// If this asmstr is empty, just print the #APP/#NOAPP markers.
// These are useful to see where empty asm's wound up.
if (AsmStr[0] == 0) {
unsigned OpFlags = MI->getOperand(OpNo).getImm();
++OpNo; // Skip over the ID number.
- if (Modifier[0]=='l') // labels are target independent
- printBasicBlockLabel(MI->getOperand(OpNo).getMBB(),
- false, false, false);
+ if (Modifier[0] == 'l') // labels are target independent
+ O << *GetMBBSymbol(MI->getOperand(OpNo).getMBB()->getNumber());
else {
AsmPrinter *AP = const_cast<AsmPrinter*>(this);
if ((OpFlags & 7) == 4) {
if (Error) {
std::string msg;
raw_string_ostream Msg(msg);
- Msg << "Invalid operand found in inline asm: '"
- << AsmStr << "'\n";
+ Msg << "Invalid operand found in inline asm: '" << AsmStr << "'\n";
MI->print(Msg);
llvm_report_error(Msg.str());
}
}
}
}
- O << "\n\t" << MAI->getCommentString() << MAI->getInlineAsmEnd() << '\n';
+ O << "\n\t" << MAI->getCommentString() << MAI->getInlineAsmEnd();
}
/// printImplicitDef - This method prints the specified machine instruction
/// that is an implicit def.
void AsmPrinter::printImplicitDef(const MachineInstr *MI) const {
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << " implicit-def: "
- << TRI->getAsmName(MI->getOperand(0).getReg()) << '\n';
+ if (!VerboseAsm) return;
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << " implicit-def: "
+ << TRI->getName(MI->getOperand(0).getReg());
+}
+
+void AsmPrinter::printKill(const MachineInstr *MI) const {
+ if (!VerboseAsm) return;
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << " kill:";
+ for (unsigned n = 0, e = MI->getNumOperands(); n != e; ++n) {
+ const MachineOperand &op = MI->getOperand(n);
+ assert(op.isReg() && "KILL instruction must have only register operands");
+ O << ' ' << TRI->getName(op.getReg()) << (op.isDef() ? "<def>" : "<kill>");
}
}
}
void AsmPrinter::printLabel(unsigned Id) const {
- O << MAI->getPrivateGlobalPrefix() << "label" << Id << ":\n";
+ O << MAI->getPrivateGlobalPrefix() << "label" << Id << ':';
}
/// PrintAsmOperand - Print the specified operand of MI, an INLINEASM
/// instruction, using the specified assembler variant. Targets should
-/// overried this to format as appropriate.
+/// override this to format as appropriate.
bool AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode) {
// Target doesn't support this yet!
return true;
}
-/// printBasicBlockLabel - This method prints the label for the specified
-/// MachineBasicBlock
-void AsmPrinter::printBasicBlockLabel(const MachineBasicBlock *MBB,
- bool printAlign,
- bool printColon,
- bool printComment) const {
- if (printAlign) {
- unsigned Align = MBB->getAlignment();
- if (Align)
- EmitAlignment(Log2_32(Align));
- }
+MCSymbol *AsmPrinter::GetBlockAddressSymbol(const BlockAddress *BA,
+ const char *Suffix) const {
+ return GetBlockAddressSymbol(BA->getFunction(), BA->getBasicBlock(), Suffix);
+}
+
+MCSymbol *AsmPrinter::GetBlockAddressSymbol(const Function *F,
+ const BasicBlock *BB,
+ const char *Suffix) const {
+ assert(BB->hasName() &&
+ "Address of anonymous basic block not supported yet!");
+
+ // This code must use the function name itself, and not the function number,
+ // since it must be possible to generate the label name from within other
+ // functions.
+ SmallString<60> FnName;
+ Mang->getNameWithPrefix(FnName, F, false);
+
+ // FIXME: THIS IS BROKEN IF THE LLVM BASIC BLOCK DOESN'T HAVE A NAME!
+ SmallString<60> NameResult;
+ Mang->getNameWithPrefix(NameResult,
+ StringRef("BA") + Twine((unsigned)FnName.size()) +
+ "_" + FnName.str() + "_" + BB->getName() + Suffix,
+ Mangler::Private);
+
+ return OutContext.GetOrCreateSymbol(NameResult.str());
+}
- O << MAI->getPrivateGlobalPrefix() << "BB" << getFunctionNumber() << '_'
- << MBB->getNumber();
- if (printColon)
+MCSymbol *AsmPrinter::GetMBBSymbol(unsigned MBBID) const {
+ SmallString<60> Name;
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "BB"
+ << getFunctionNumber() << '_' << MBBID;
+
+ return OutContext.GetOrCreateSymbol(Name.str());
+}
+
+/// GetGlobalValueSymbol - Return the MCSymbol for the specified global
+/// value.
+MCSymbol *AsmPrinter::GetGlobalValueSymbol(const GlobalValue *GV) const {
+ SmallString<60> NameStr;
+ Mang->getNameWithPrefix(NameStr, GV, false);
+ return OutContext.GetOrCreateSymbol(NameStr.str());
+}
+
+/// GetSymbolWithGlobalValueBase - Return the MCSymbol for a symbol with
+/// global value name as its base, with the specified suffix, and where the
+/// symbol is forced to have private linkage if ForcePrivate is true.
+MCSymbol *AsmPrinter::GetSymbolWithGlobalValueBase(const GlobalValue *GV,
+ StringRef Suffix,
+ bool ForcePrivate) const {
+ SmallString<60> NameStr;
+ Mang->getNameWithPrefix(NameStr, GV, ForcePrivate);
+ NameStr.append(Suffix.begin(), Suffix.end());
+ return OutContext.GetOrCreateSymbol(NameStr.str());
+}
+
+/// GetExternalSymbolSymbol - Return the MCSymbol for the specified
+/// ExternalSymbol.
+MCSymbol *AsmPrinter::GetExternalSymbolSymbol(StringRef Sym) const {
+ SmallString<60> NameStr;
+ Mang->getNameWithPrefix(NameStr, Sym);
+ return OutContext.GetOrCreateSymbol(NameStr.str());
+}
+
+
+/// EmitBasicBlockStart - This method prints the label for the specified
+/// MachineBasicBlock, an alignment (if present) and a comment describing
+/// it if appropriate.
+void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
+ // Emit an alignment directive for this block, if needed.
+ if (unsigned Align = MBB->getAlignment())
+ EmitAlignment(Log2_32(Align));
+
+ // If the block has its address taken, emit a special label to satisfy
+ // references to the block. This is done so that we don't need to
+ // remember the number of this label, and so that we can make
+ // forward references to labels without knowing what their numbers
+ // will be.
+ if (MBB->hasAddressTaken()) {
+ O << *GetBlockAddressSymbol(MBB->getBasicBlock()->getParent(),
+ MBB->getBasicBlock());
O << ':';
- if (printComment) {
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << " Address Taken";
+ }
+ O << '\n';
+ }
+
+ // Print the main label for the block.
+ if (MBB->pred_empty() || MBB->isOnlyReachableByFallthrough()) {
+ if (VerboseAsm)
+ O << MAI->getCommentString() << " BB#" << MBB->getNumber() << ':';
+ } else {
+ O << *GetMBBSymbol(MBB->getNumber()) << ':';
+ if (!VerboseAsm)
+ O << '\n';
+ }
+
+ // Print some comments to accompany the label.
+ if (VerboseAsm) {
if (const BasicBlock *BB = MBB->getBasicBlock())
if (BB->hasName()) {
O.PadToColumn(MAI->getCommentColumn());
WriteAsOperand(O, BB, /*PrintType=*/false);
}
- if (printColon)
- EmitComments(*MBB);
+ EmitComments(*MBB);
+ O << '\n';
}
}
return;
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
- << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ',';
- printBasicBlockLabel(MBB, false, false, false);
- O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
+ << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ','
+ << *GetMBBSymbol(MBB->getNumber())
+ << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '\n';
}
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
<< getFunctionNumber() << '_' << uid << '_' << uid2
- << "_set_" << MBB->getNumber() << ',';
- printBasicBlockLabel(MBB, false, false, false);
- O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
+ << "_set_" << MBB->getNumber() << ','
+ << *GetMBBSymbol(MBB->getNumber())
+ << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '_' << uid2 << '\n';
}
}
}
-void AsmPrinter::printVisibility(const std::string& Name,
+void AsmPrinter::printVisibility(const MCSymbol *Sym,
unsigned Visibility) const {
if (Visibility == GlobalValue::HiddenVisibility) {
if (const char *Directive = MAI->getHiddenDirective())
- O << Directive << Name << '\n';
+ O << Directive << *Sym << '\n';
} else if (Visibility == GlobalValue::ProtectedVisibility) {
if (const char *Directive = MAI->getProtectedDirective())
- O << Directive << Name << '\n';
+ O << Directive << *Sym << '\n';
}
}
O << Offset;
}
-void AsmPrinter::printMCInst(const MCInst *MI) {
- llvm_unreachable("MCInst printing unavailable on this target!");
-}
-
GCMetadataPrinter *AsmPrinter::GetOrCreateGCPrinter(GCStrategy *S) {
if (!S->usesMetadata())
return 0;
return GMP;
}
- cerr << "no GCMetadataPrinter registered for GC: " << Name << "\n";
+ errs() << "no GCMetadataPrinter registered for GC: " << Name << "\n";
llvm_unreachable(0);
}
/// EmitComments - Pretty-print comments for instructions
void AsmPrinter::EmitComments(const MachineInstr &MI) const {
- if (!VerboseAsm ||
- MI.getDebugLoc().isUnknown())
+ if (!VerboseAsm)
return;
-
- DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
- // Print source line info.
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << " SrcLine ";
- if (DLT.CompileUnit->hasInitializer()) {
- Constant *Name = DLT.CompileUnit->getInitializer();
- if (ConstantArray *NameString = dyn_cast<ConstantArray>(Name))
- if (NameString->isString())
- O << NameString->getAsString() << " ";
+ bool Newline = false;
+
+ if (!MI.getDebugLoc().isUnknown()) {
+ DILocation DLT = MF->getDILocation(MI.getDebugLoc());
+
+ // Print source line info.
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ DIScope Scope = DLT.getScope();
+ // Omit the directory, because it's likely to be long and uninteresting.
+ if (!Scope.isNull())
+ O << Scope.getFilename();
+ else
+ O << "<unknown>";
+ O << ':' << DLT.getLineNumber();
+ if (DLT.getColumnNumber() != 0)
+ O << ':' << DLT.getColumnNumber();
+ Newline = true;
}
- O << DLT.Line;
- if (DLT.Col != 0)
- O << ":" << DLT.Col;
-}
-/// EmitComments - Pretty-print comments for instructions
-void AsmPrinter::EmitComments(const MCInst &MI) const {
- if (!VerboseAsm ||
- MI.getDebugLoc().isUnknown())
- return;
-
- DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
+ // Check for spills and reloads
+ int FI;
- // Print source line info
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << " SrcLine ";
- if (DLT.CompileUnit->hasInitializer()) {
- Constant *Name = DLT.CompileUnit->getInitializer();
- if (ConstantArray *NameString = dyn_cast<ConstantArray>(Name))
- if (NameString->isString())
- O << NameString->getAsString() << " ";
+ const MachineFrameInfo *FrameInfo =
+ MI.getParent()->getParent()->getFrameInfo();
+
+ // We assume a single instruction only has a spill or reload, not
+ // both.
+ const MachineMemOperand *MMO;
+ if (TM.getInstrInfo()->isLoadFromStackSlotPostFE(&MI, FI)) {
+ if (FrameInfo->isSpillSlotObjectIndex(FI)) {
+ MMO = *MI.memoperands_begin();
+ if (Newline) O << '\n';
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ' << MMO->getSize() << "-byte Reload";
+ Newline = true;
+ }
+ }
+ else if (TM.getInstrInfo()->hasLoadFromStackSlot(&MI, MMO, FI)) {
+ if (FrameInfo->isSpillSlotObjectIndex(FI)) {
+ if (Newline) O << '\n';
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' '
+ << MMO->getSize() << "-byte Folded Reload";
+ Newline = true;
+ }
+ }
+ else if (TM.getInstrInfo()->isStoreToStackSlotPostFE(&MI, FI)) {
+ if (FrameInfo->isSpillSlotObjectIndex(FI)) {
+ MMO = *MI.memoperands_begin();
+ if (Newline) O << '\n';
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ' << MMO->getSize() << "-byte Spill";
+ Newline = true;
+ }
+ }
+ else if (TM.getInstrInfo()->hasStoreToStackSlot(&MI, MMO, FI)) {
+ if (FrameInfo->isSpillSlotObjectIndex(FI)) {
+ if (Newline) O << '\n';
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' '
+ << MMO->getSize() << "-byte Folded Spill";
+ Newline = true;
+ }
+ }
+
+ // Check for spill-induced copies
+ unsigned SrcReg, DstReg, SrcSubIdx, DstSubIdx;
+ if (TM.getInstrInfo()->isMoveInstr(MI, SrcReg, DstReg,
+ SrcSubIdx, DstSubIdx)) {
+ if (MI.getAsmPrinterFlag(ReloadReuse)) {
+ if (Newline) O << '\n';
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << " Reload Reuse";
+ }
}
- O << DLT.Line;
- if (DLT.Col != 0)
- O << ":" << DLT.Col;
}
/// PrintChildLoopComment - Print comments about child loops within
}
/// EmitComments - Pretty-print comments for basic blocks
-void AsmPrinter::EmitComments(const MachineBasicBlock &MBB) const
-{
+void AsmPrinter::EmitComments(const MachineBasicBlock &MBB) const {
if (VerboseAsm) {
// Add loop depth information
const MachineLoop *loop = LI->getLoopFor(&MBB);