[llvm-commits] [llvm] r130985 - in /llvm/trunk: include/llvm/CodeGen/AsmPrinter.h lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
Rafael Espindola
rafael.espindola at gmail.com
Fri May 6 08:22:26 PDT 2011
Author: rafael
Date: Fri May 6 10:22:26 2011
New Revision: 130985
URL: http://llvm.org/viewvc/llvm-project?rev=130985&view=rev
Log:
More dead code elimination.
Modified:
llvm/trunk/include/llvm/CodeGen/AsmPrinter.h
llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
Modified: llvm/trunk/include/llvm/CodeGen/AsmPrinter.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/AsmPrinter.h?rev=130985&r1=130984&r2=130985&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/AsmPrinter.h (original)
+++ llvm/trunk/include/llvm/CodeGen/AsmPrinter.h Fri May 6 10:22:26 2011
@@ -398,8 +398,6 @@
/// EmitFrameMoves - Emit frame instructions to describe the layout of the
/// frame.
- void EmitFrameMoves(const std::vector<MachineMove> &Moves,
- MCSymbol *BaseLabel, bool isEH) const;
void EmitCFIFrameMove(const MachineMove &Move) const;
void EmitCFIFrameMoves(const std::vector<MachineMove> &Moves) const;
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp?rev=130985&r1=130984&r2=130985&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp Fri May 6 10:22:26 2011
@@ -206,77 +206,6 @@
// Dwarf Lowering Routines
//===----------------------------------------------------------------------===//
-
-/// EmitFrameMoves - Emit frame instructions to describe the layout of the
-/// frame.
-void AsmPrinter::EmitFrameMoves(const std::vector<MachineMove> &Moves,
- MCSymbol *BaseLabel, bool isEH) 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();
-
- // Advance row if new location.
- if (BaseLabel && Label) {
- MCSymbol *ThisSym = Label;
- if (ThisSym != BaseLabel) {
- EmitCFAByte(dwarf::DW_CFA_advance_loc4);
- EmitLabelDifference(ThisSym, BaseLabel, 4);
- BaseLabel = ThisSym;
- }
- }
-
- // If advancing cfa.
- if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
- assert(!Src.isReg() && "Machine move not supported yet.");
-
- if (Src.getReg() == MachineLocation::VirtualFP) {
- EmitCFAByte(dwarf::DW_CFA_def_cfa_offset);
- } else {
- EmitCFAByte(dwarf::DW_CFA_def_cfa);
- EmitULEB128(RI->getDwarfRegNum(Src.getReg(), isEH), "Register");
- }
-
- EmitULEB128(-Src.getOffset(), "Offset");
- continue;
- }
-
- if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
- assert(Dst.isReg() && "Machine move not supported yet.");
- EmitCFAByte(dwarf::DW_CFA_def_cfa_register);
- EmitULEB128(RI->getDwarfRegNum(Dst.getReg(), isEH), "Register");
- continue;
- }
-
- unsigned Reg = RI->getDwarfRegNum(Src.getReg(), isEH);
- int Offset = Dst.getOffset() / stackGrowth;
-
- if (Offset < 0) {
- EmitCFAByte(dwarf::DW_CFA_offset_extended_sf);
- EmitULEB128(Reg, "Reg");
- EmitSLEB128(Offset, "Offset");
- } else if (Reg < 64) {
- EmitCFAByte(dwarf::DW_CFA_offset + Reg);
- EmitULEB128(Offset, "Offset");
- } else {
- EmitCFAByte(dwarf::DW_CFA_offset_extended);
- EmitULEB128(Reg, "Reg");
- EmitULEB128(Offset, "Offset");
- }
- }
-}
-
/// EmitFrameMoves - Emit a frame instruction.
void AsmPrinter::EmitCFIFrameMove(const MachineMove &Move) const {
const TargetRegisterInfo *RI = TM.getRegisterInfo();
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