#include "llvm/Module.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/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/TargetData.h"
+#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetOptions.h"
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) {
+ PrevDLT(0, 0, ~0U, ~0U) {
DW = 0; MMI = 0;
switch (AsmVerbose) {
case cl::BOU_UNSET: VerboseAsm = VDef; break;
if (MAI->doesAllowQuotesInName())
Mang->setUseQuotes(true);
+
+ if (MAI->doesAllowNameToStartWithDigit())
+ Mang->setSymbolsCanStartWithDigit(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;
}
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());
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);
+ GetMBBSymbol(MBB->getNumber())->print(O, MAI);
} else if (MAI->getSetDirective()) {
O << MAI->getPrivateGlobalPrefix() << getFunctionNumber()
<< '_' << uid << "_set_" << MBB->getNumber();
} else {
- printBasicBlockLabel(MBB, false, false, false);
+ GetMBBSymbol(MBB->getNumber())->print(O, MAI);
// If the arch uses custom Jump Table directives, don't calc relative to
// JT
if (!HadJTEntryDirective)
}
}
-/// 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];
} 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);
// 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 << '\n';
}
+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 char *Comment, unsigned Encoding) const {
+ if (VerboseAsm && *Comment) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString()
+ << ' '
+ << Comment;
+
+ if (const char *EncStr = DecodeDWARFEncoding(Encoding))
+ O << " (" << EncStr << ')';
+ }
+ O << '\n';
+}
+
/// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
/// unsigned leb128 value.
void AsmPrinter::EmitULEB128Bytes(unsigned Value) const {
/// 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 {
O << CI->getZExtValue();
} else 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();
- }
+ // name of the variable or function as the address value.
+ O << Mang->getMangledName(GV);
} else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
const TargetData *TD = TM.getTargetData();
unsigned Opcode = CE->getOpcode();
default:
llvm_unreachable("Unsupported operator!");
}
+ } else if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV)) {
+ GetBlockAddressSymbol(BA)->print(O, MAI);
} else {
llvm_unreachable("Unknown constant value!");
}
// 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();
/// 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;
+ DebugLocTuple CurDLT = MF->getDebugLocTuple(DL);
+ if (CurDLT.Scope == 0)
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 != PrevDLT) {
+ unsigned L = DW->RecordSourceLine(CurDLT.Line, CurDLT.Col,
+ CurDLT.Scope);
+ 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) {
++OpNo; // Skip over the ID number.
if (Modifier[0]=='l') // labels are target independent
- printBasicBlockLabel(MI->getOperand(OpNo).getMBB(),
- false, false, false);
+ GetMBBSymbol(MI->getOperand(OpNo).getMBB()
+ ->getNumber())->print(O, MAI);
else {
AsmPrinter *AP = const_cast<AsmPrinter*>(this);
if ((OpFlags & 7) == 4) {
}
}
}
- 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
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.
+ std::string FuncName = Mang->getMangledName(F);
+
+ SmallString<60> Name;
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "BA"
+ << FuncName.size() << '_' << FuncName << '_'
+ << Mang->makeNameProper(BB->getName())
+ << Suffix;
+
+ return OutContext.GetOrCreateSymbol(Name.str());
+}
+
+MCSymbol *AsmPrinter::GetMBBSymbol(unsigned MBBID) const {
+ SmallString<60> Name;
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "BB"
+ << getFunctionNumber() << '_' << MBBID;
+
+ return OutContext.GetOrCreateSymbol(Name.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()) {
+ GetBlockAddressSymbol(MBB->getBasicBlock()->getParent(),
+ MBB->getBasicBlock())->print(O, MAI);
+ O << ':';
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << " Address Taken";
+ }
+ O << '\n';
}
- O << MAI->getPrivateGlobalPrefix() << "BB" << getFunctionNumber() << '_'
- << MBB->getNumber();
- if (printColon)
+ // Print the main label for the block.
+ if (MBB->pred_empty() || MBB->isOnlyReachableByFallthrough()) {
+ if (VerboseAsm)
+ O << MAI->getCommentString() << " BB#" << MBB->getNumber() << ':';
+ } else {
+ GetMBBSymbol(MBB->getNumber())->print(O, MAI);
O << ':';
- if (printComment) {
+ 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';
}
}
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
<< getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ',';
- printBasicBlockLabel(MBB, false, false, false);
+ GetMBBSymbol(MBB->getNumber())->print(O, MAI);
O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '\n';
}
O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
<< getFunctionNumber() << '_' << uid << '_' << uid2
<< "_set_" << MBB->getNumber() << ',';
- printBasicBlockLabel(MBB, false, false, false);
+ GetMBBSymbol(MBB->getNumber())->print(O, MAI);
O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '_' << uid2 << '\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()) {
+ DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
+
+ // Print source line info.
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ DIScope Scope(DLT.Scope);
+ // Omit the directory, because it's likely to be long and uninteresting.
+ if (!Scope.isNull())
+ O << Scope.getFilename();
+ else
+ O << "<unknown>";
+ O << ':' << DLT.Line;
+ if (DLT.Col != 0)
+ O << ':' << DLT.Col;
+ 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) {
- if (!MI.getDebugLoc().isUnknown()) {
- DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
+ // Check for spills and reloads
+ int FI;
+
+ const MachineFrameInfo *FrameInfo =
+ MI.getParent()->getParent()->getFrameInfo();
- // Print source line info
+ // 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() << " SrcLine ";
- if (DLT.CompileUnit->hasInitializer()) {
- Constant *Name = DLT.CompileUnit->getInitializer();
- if (ConstantArray *NameString = dyn_cast<ConstantArray>(Name))
- if (NameString->isString()) {
- O << NameString->getAsString() << " ";
- }
- }
- O << DLT.Line;
- if (DLT.Col != 0)
- O << ":" << DLT.Col;
+ 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";
}
}
}
}
/// 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);
projects / oota-llvm.git / blobdiff