From 8da87163ca5af01e922f867187d9d6ef9011cd1b Mon Sep 17 00:00:00 2001 From: Eli Bendersky Date: Thu, 21 Feb 2013 20:05:00 +0000 Subject: Move the eliminateCallFramePseudoInstr method from TargetRegisterInfo to TargetFrameLowering, where it belongs. Incidentally, this allows us to delete some duplicated (and slightly different!) code in TRI. There are potentially other layering problems that can be cleaned up as a result, or in a similar manner. The refactoring was OK'd by Anton Korobeynikov on llvmdev. Note: this touches the target interfaces, so out-of-tree targets may be affected. llvm-svn: 175788 --- llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp | 39 ----------------------------- 1 file changed, 39 deletions(-) (limited to 'llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp') diff --git a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp index eca7f129953..9745235525e 100644 --- a/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/llvm/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -222,45 +222,6 @@ PPCRegisterInfo::avoidWriteAfterWrite(const TargetRegisterClass *RC) const { // Stack Frame Processing methods //===----------------------------------------------------------------------===// -void PPCRegisterInfo:: -eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, - MachineBasicBlock::iterator I) const { - if (MF.getTarget().Options.GuaranteedTailCallOpt && - I->getOpcode() == PPC::ADJCALLSTACKUP) { - // Add (actually subtract) back the amount the callee popped on return. - if (int CalleeAmt = I->getOperand(1).getImm()) { - bool is64Bit = Subtarget.isPPC64(); - CalleeAmt *= -1; - unsigned StackReg = is64Bit ? PPC::X1 : PPC::R1; - unsigned TmpReg = is64Bit ? PPC::X0 : PPC::R0; - unsigned ADDIInstr = is64Bit ? PPC::ADDI8 : PPC::ADDI; - unsigned ADDInstr = is64Bit ? PPC::ADD8 : PPC::ADD4; - unsigned LISInstr = is64Bit ? PPC::LIS8 : PPC::LIS; - unsigned ORIInstr = is64Bit ? PPC::ORI8 : PPC::ORI; - MachineInstr *MI = I; - DebugLoc dl = MI->getDebugLoc(); - - if (isInt<16>(CalleeAmt)) { - BuildMI(MBB, I, dl, TII.get(ADDIInstr), StackReg) - .addReg(StackReg, RegState::Kill) - .addImm(CalleeAmt); - } else { - MachineBasicBlock::iterator MBBI = I; - BuildMI(MBB, MBBI, dl, TII.get(LISInstr), TmpReg) - .addImm(CalleeAmt >> 16); - BuildMI(MBB, MBBI, dl, TII.get(ORIInstr), TmpReg) - .addReg(TmpReg, RegState::Kill) - .addImm(CalleeAmt & 0xFFFF); - BuildMI(MBB, MBBI, dl, TII.get(ADDInstr), StackReg) - .addReg(StackReg, RegState::Kill) - .addReg(TmpReg); - } - } - } - // Simply discard ADJCALLSTACKDOWN, ADJCALLSTACKUP instructions. - MBB.erase(I); -} - /// findScratchRegister - Find a 'free' PPC register. Try for a call-clobbered /// register first and then a spilled callee-saved register if that fails. static -- cgit v1.2.3