#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/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"
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) {}
};
}
//===----------------------------------------------------------------------===//
/// 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];
/// 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 {
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!");
}
/// instruction's DebugLoc.
void AsmPrinter::processDebugLoc(const MachineInstr *MI,
bool BeforePrintingInsn) {
- if (!MAI || !DW)
+ if (!MAI || !DW || !MAI->doesSupportDebugInformation()
+ || !DW->ShouldEmitDwarfDebug())
return;
DebugLoc DL = MI->getDebugLoc();
- if (MAI->doesSupportDebugInformation() && DW->ShouldEmitDwarfDebug()) {
- if (!DL.isUnknown()) {
- DebugLocTuple CurDLT = MF->getDebugLocTuple(DL);
- if (BeforePrintingInsn) {
- if (CurDLT.Scope != 0 && PrevDLT != CurDLT) {
- unsigned L = DW->RecordSourceLine(CurDLT.Line, CurDLT.Col,
- CurDLT.Scope);
- printLabel(L);
-#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
- DW->SetDbgScopeBeginLabels(MI, L);
-#endif
- } else {
-#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN
- DW->SetDbgScopeEndLabels(MI, 0);
-#endif
- }
- }
+ if (DL.isUnknown())
+ return;
+ DebugLocTuple CurDLT = MF->getDebugLocTuple(DL);
+ if (CurDLT.Scope == 0)
+ return;
+
+ 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) {
<< 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>");
+ }
+}
+
/// printLabel - This method prints a local label used by debug and
/// exception handling tables.
void AsmPrinter::printLabel(const MachineInstr *MI) const {
return true;
}
-MCSymbol *AsmPrinter::GetBlockAddressSymbol(const BlockAddress *BA) const {
- return GetBlockAddressSymbol(BA->getFunction(), BA->getBasicBlock());
+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 {
+ const BasicBlock *BB,
+ const char *Suffix) const {
assert(BB->hasName() &&
"Address of anonymous basic block not supported yet!");
- std::string Mangled =
- Mang->getMangledName(F, Mang->makeNameProper(BB->getName()).c_str(),
- /*ForcePrivate=*/true);
+ // 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);
- return OutContext.GetOrCreateSymbol(StringRef(Mangled));
+ 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 {
/// EmitComments - Pretty-print comments for instructions
void AsmPrinter::EmitComments(const MachineInstr &MI) const {
- assert(VerboseAsm && !MI.getDebugLoc().isUnknown());
-
- DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc());
+ if (!VerboseAsm)
+ return;
- // Print source line info.
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << " SrcLine ";
- if (DLT.Scope) {
- DICompileUnit CU(DLT.Scope);
- if (!CU.isNull())
- O << CU.getFilename() << " ";
+ 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;
+ }
+
+ // Check for spills and reloads
+ int FI;
+
+ 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);
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