[llvm-commits] [llvm] r130985 - in /llvm/trunk: include/llvm/CodeGen/AsmPrinter.h lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp

[Rafael Espindola]

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();