#define DEBUG_TYPE "asm-printer"
#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/MC/MachineLocation.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/IR/DataLayout.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/DataLayout.h"
+#include "llvm/MC/MachineLocation.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
/// EmitSLEB128 - emit the specified signed leb128 value.
-void AsmPrinter::EmitSLEB128(int Value, const char *Desc) const {
+void AsmPrinter::EmitSLEB128(int64_t Value, const char *Desc) const {
if (isVerbose() && Desc)
OutStreamer.AddComment(Desc);
}
/// EmitULEB128 - emit the specified signed leb128 value.
-void AsmPrinter::EmitULEB128(unsigned Value, const char *Desc,
+void AsmPrinter::EmitULEB128(uint64_t Value, const char *Desc,
unsigned PadTo) const {
if (isVerbose() && Desc)
OutStreamer.AddComment(Desc);
- OutStreamer.EmitULEB128IntValue(Value, 0/*addrspace*/, PadTo);
+ OutStreamer.EmitULEB128IntValue(Value, PadTo);
}
/// EmitCFAByte - Emit a .byte 42 directive for a DW_CFA_xxx value.
void AsmPrinter::EmitCFAByte(unsigned Val) const {
if (isVerbose()) {
if (Val >= dwarf::DW_CFA_offset && Val < dwarf::DW_CFA_offset+64)
- OutStreamer.AddComment("DW_CFA_offset + Reg (" +
+ OutStreamer.AddComment("DW_CFA_offset + Reg (" +
Twine(Val-dwarf::DW_CFA_offset) + ")");
else
OutStreamer.AddComment(dwarf::CallFrameString(Val));
}
- OutStreamer.EmitIntValue(Val, 1, 0/*addrspace*/);
+ OutStreamer.EmitIntValue(Val, 1);
}
static const char *DecodeDWARFEncoding(unsigned Encoding) {
case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata8:
return "indirect pcrel sdata8";
}
-
+
return "<unknown encoding>";
}
OutStreamer.AddComment(Twine("Encoding = ") +
DecodeDWARFEncoding(Val));
}
-
- OutStreamer.EmitIntValue(Val, 1, 0/*addrspace*/);
+
+ OutStreamer.EmitIntValue(Val, 1);
}
/// GetSizeOfEncodedValue - Return the size of the encoding in bytes.
unsigned AsmPrinter::GetSizeOfEncodedValue(unsigned Encoding) const {
if (Encoding == dwarf::DW_EH_PE_omit)
return 0;
-
+
switch (Encoding & 0x07) {
default: llvm_unreachable("Invalid encoded value.");
case dwarf::DW_EH_PE_absptr: return TM.getDataLayout()->getPointerSize();
}
}
-void AsmPrinter::EmitTTypeReference(const GlobalValue *GV, unsigned Encoding)const{
- const TargetLoweringObjectFile &TLOF = getObjFileLowering();
-
- const MCExpr *Exp =
- TLOF.getTTypeGlobalReference(GV, Mang, MMI, Encoding, OutStreamer);
- OutStreamer.EmitValue(Exp, GetSizeOfEncodedValue(Encoding), /*addrspace*/0);
+void AsmPrinter::EmitTTypeReference(const GlobalValue *GV,
+ unsigned Encoding) const {
+ if (GV) {
+ const TargetLoweringObjectFile &TLOF = getObjFileLowering();
+
+ const MCExpr *Exp =
+ TLOF.getTTypeGlobalReference(GV, Mang, MMI, Encoding, OutStreamer);
+ OutStreamer.EmitValue(Exp, GetSizeOfEncodedValue(Encoding));
+ } else
+ OutStreamer.EmitIntValue(0, GetSizeOfEncodedValue(Encoding));
}
/// EmitSectionOffset - Emit the 4-byte offset of Label from the start of its
void AsmPrinter::EmitSectionOffset(const MCSymbol *Label,
const MCSymbol *SectionLabel) const {
// On COFF targets, we have to emit the special .secrel32 directive.
- if (MAI->getDwarfSectionOffsetDirective()) {
+ if (MAI->needsDwarfSectionOffsetDirective()) {
OutStreamer.EmitCOFFSecRel32(Label);
return;
}
-
+
// Get the section that we're referring to, based on SectionLabel.
const MCSection &Section = SectionLabel->getSection();
-
+
// If Label has already been emitted, verify that it is in the same section as
// section label for sanity.
assert((!Label->isInSection() || &Label->getSection() == &Section) &&
"Section offset using wrong section base for label");
-
+
// If the section in question will end up with an address of 0 anyway, we can
// just emit an absolute reference to save a relocation.
if (Section.isBaseAddressKnownZero()) {
- OutStreamer.EmitSymbolValue(Label, 4, 0/*AddrSpace*/);
+ OutStreamer.EmitSymbolValue(Label, 4);
return;
}
-
+
// Otherwise, emit it as a label difference from the start of the section.
EmitLabelDifference(Label, SectionLabel, 4);
}
// Dwarf Lowering Routines
//===----------------------------------------------------------------------===//
-/// EmitCFIFrameMove - Emit a frame instruction.
-void AsmPrinter::EmitCFIFrameMove(const MachineMove &Move) const {
- const TargetRegisterInfo *RI = TM.getRegisterInfo();
-
- const MachineLocation &Dst = Move.getDestination();
- const MachineLocation &Src = Move.getSource();
-
- // If advancing cfa.
- if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
- if (Src.getReg() == MachineLocation::VirtualFP) {
- OutStreamer.EmitCFIDefCfaOffset(-Src.getOffset());
- } else {
- // Reg + Offset
- OutStreamer.EmitCFIDefCfa(RI->getDwarfRegNum(Src.getReg(), true),
- Src.getOffset());
- }
- } else if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
- assert(Dst.isReg() && "Machine move not supported yet.");
- OutStreamer.EmitCFIDefCfaRegister(RI->getDwarfRegNum(Dst.getReg(), true));
- } else {
- assert(!Dst.isReg() && "Machine move not supported yet.");
- OutStreamer.EmitCFIOffset(RI->getDwarfRegNum(Src.getReg(), true),
- Dst.getOffset());
+void AsmPrinter::emitCFIInstruction(const MCCFIInstruction &Inst) const {
+ switch (Inst.getOperation()) {
+ default:
+ llvm_unreachable("Unexpected instruction");
+ case MCCFIInstruction::OpDefCfaOffset:
+ OutStreamer.EmitCFIDefCfaOffset(Inst.getOffset());
+ break;
+ case MCCFIInstruction::OpDefCfa:
+ OutStreamer.EmitCFIDefCfa(Inst.getRegister(), Inst.getOffset());
+ break;
+ case MCCFIInstruction::OpDefCfaRegister:
+ OutStreamer.EmitCFIDefCfaRegister(Inst.getRegister());
+ break;
+ case MCCFIInstruction::OpOffset:
+ OutStreamer.EmitCFIOffset(Inst.getRegister(), Inst.getOffset());
+ break;
}
}
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