diff options
author | Rafael Espindola <rafael.espindola@gmail.com> | 2013-05-13 01:16:13 +0000 |
---|---|---|
committer | Rafael Espindola <rafael.espindola@gmail.com> | 2013-05-13 01:16:13 +0000 |
commit | 4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b (patch) | |
tree | 7fc9f941c0c4980917c7889ceba9daae147594cf /lib/CodeGen/AsmPrinter | |
parent | aa4f36407f51d827af834d05821c7466db32f147 (diff) | |
download | llvm-4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b.tar.gz llvm-4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b.tar.bz2 llvm-4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b.tar.xz |
Remove the MachineMove class.
It was just a less powerful and more confusing version of
MCCFIInstruction. A side effect is that, since MCCFIInstruction uses
dwarf register numbers, calls to getDwarfRegNum are pushed out, which
should allow further simplifications.
I left the MachineModuleInfo::addFrameMove interface unchanged since
this patch was already fairly big.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter')
-rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 9 | ||||
-rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp | 39 | ||||
-rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfException.h | 1 |
3 files changed, 20 insertions, 29 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp index eb744d243b..7ad4f57f75 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp @@ -636,14 +636,13 @@ void AsmPrinter::emitPrologLabel(const MachineInstr &MI) { OutStreamer.EmitCompactUnwindEncoding(MMI->getCompactUnwindEncoding()); MachineModuleInfo &MMI = MF->getMMI(); - const std::vector<MachineMove> &Moves = MMI.getFrameMoves(); + std::vector<MCCFIInstruction> Instructions = MMI.getFrameInstructions(); bool FoundOne = false; (void)FoundOne; - for (std::vector<MachineMove>::const_iterator I = Moves.begin(), - E = Moves.end(); - I != E; ++I) { + for (std::vector<MCCFIInstruction>::iterator I = Instructions.begin(), + E = Instructions.end(); I != E; ++I) { if (I->getLabel() == Label) { - EmitCFIFrameMove(*I); + emitCFIInstruction(*I); FoundOne = true; } } diff --git a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp index 31e42d47cf..e6d67e8822 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp @@ -169,28 +169,21 @@ void AsmPrinter::EmitSectionOffset(const MCSymbol *Label, // 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; } } diff --git a/lib/CodeGen/AsmPrinter/DwarfException.h b/lib/CodeGen/AsmPrinter/DwarfException.h index 74b1b13367..49a85d81b4 100644 --- a/lib/CodeGen/AsmPrinter/DwarfException.h +++ b/lib/CodeGen/AsmPrinter/DwarfException.h @@ -23,7 +23,6 @@ namespace llvm { template <typename T> class SmallVectorImpl; struct LandingPadInfo; class MachineModuleInfo; -class MachineMove; class MachineInstr; class MachineFunction; class MCAsmInfo; |