diff options
Diffstat (limited to 'lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp')
-rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp | 61 |
1 files changed, 50 insertions, 11 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp index ce4519c..98a1bf2 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp @@ -19,7 +19,7 @@ #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSymbol.h" #include "llvm/Target/TargetData.h" -#include "llvm/Target/TargetFrameInfo.h" +#include "llvm/Target/TargetFrameLowering.h" #include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetRegisterInfo.h" @@ -36,9 +36,8 @@ void AsmPrinter::EmitSLEB128(int Value, const char *Desc) const { if (isVerbose() && Desc) OutStreamer.AddComment(Desc); - if (MAI->hasLEB128() && OutStreamer.hasRawTextSupport()) { - // FIXME: MCize. - OutStreamer.EmitRawText("\t.sleb128\t" + Twine(Value)); + if (MAI->hasLEB128()) { + OutStreamer.EmitSLEB128IntValue(Value); return; } @@ -60,10 +59,10 @@ void AsmPrinter::EmitULEB128(unsigned Value, const char *Desc, unsigned PadTo) const { if (isVerbose() && Desc) OutStreamer.AddComment(Desc); - - if (MAI->hasLEB128() && PadTo == 0 && OutStreamer.hasRawTextSupport()) { - // FIXME: MCize. - OutStreamer.EmitRawText("\t.uleb128\t" + Twine(Value)); + + // FIXME: Should we add a PadTo option to the streamer? + if (MAI->hasLEB128() && PadTo == 0) { + OutStreamer.EmitULEB128IntValue(Value); return; } @@ -157,7 +156,7 @@ void AsmPrinter::EmitReference(const MCSymbol *Sym, unsigned Encoding) const { const MCExpr *Exp = TLOF.getExprForDwarfReference(Sym, Mang, MMI, Encoding, OutStreamer); - OutStreamer.EmitValue(Exp, GetSizeOfEncodedValue(Encoding), /*addrspace*/0); + OutStreamer.EmitAbsValue(Exp, GetSizeOfEncodedValue(Encoding)); } void AsmPrinter::EmitReference(const GlobalValue *GV, unsigned Encoding)const{ @@ -215,8 +214,8 @@ void AsmPrinter::EmitFrameMoves(const std::vector<MachineMove> &Moves, const TargetRegisterInfo *RI = TM.getRegisterInfo(); int stackGrowth = TM.getTargetData()->getPointerSize(); - if (TM.getFrameInfo()->getStackGrowthDirection() != - TargetFrameInfo::StackGrowsUp) + if (TM.getFrameLowering()->getStackGrowthDirection() != + TargetFrameLowering::StackGrowsUp) stackGrowth *= -1; for (unsigned i = 0, N = Moves.size(); i < N; ++i) { @@ -277,3 +276,43 @@ void AsmPrinter::EmitFrameMoves(const std::vector<MachineMove> &Moves, } } } + +/// EmitFrameMoves - Emit frame instructions to describe the layout of the +/// frame. +void AsmPrinter::EmitCFIFrameMoves(const std::vector<MachineMove> &Moves) const { + const TargetRegisterInfo *RI = TM.getRegisterInfo(); + + int stackGrowth = TM.getTargetData()->getPointerSize(); + if (TM.getFrameLowering()->getStackGrowthDirection() != + TargetFrameLowering::StackGrowsUp) + stackGrowth *= -1; + + for (unsigned i = 0, N = Moves.size(); i < N; ++i) { + const MachineMove &Move = Moves[i]; + MCSymbol *Label = Move.getLabel(); + // Throw out move if the label is invalid. + if (Label && !Label->isDefined()) continue; // Not emitted, in dead code. + + const MachineLocation &Dst = Move.getDestination(); + const MachineLocation &Src = Move.getSource(); + + // If advancing cfa. + if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) { + assert(!Src.isReg() && "Machine move not supported yet."); + + if (Src.getReg() == MachineLocation::VirtualFP) { + OutStreamer.EmitCFIDefCfaOffset(-Src.getOffset()); + } else { + assert("Machine move not supported yet"); + // Reg + Offset + } + } 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()); + } + } +} |