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https://github.com/c64scene-ar/llvm-6502.git
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f47dfba023
a couple of outstanding issues with frame objects occuring as instruction operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140616 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
//===- PTXRegisterInfo.cpp - PTX Register Information ---------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the PTX implementation of the TargetRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#include "PTX.h"
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#include "PTXRegisterInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineInstrBuilder.h"
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#include "llvm/CodeGen/MachineRegisterInfo.h"
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#include "llvm/Target/TargetInstrInfo.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/raw_ostream.h"
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#define GET_REGINFO_TARGET_DESC
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#include "PTXGenRegisterInfo.inc"
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using namespace llvm;
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PTXRegisterInfo::PTXRegisterInfo(PTXTargetMachine &TM,
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const TargetInstrInfo &tii)
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// PTX does not have a return address register.
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: PTXGenRegisterInfo(0), TII(tii) {
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}
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void PTXRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
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int SPAdj,
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RegScavenger *RS) const {
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unsigned Index;
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MachineInstr &MI = *II;
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//MachineBasicBlock &MBB = *MI.getParent();
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DebugLoc dl = MI.getDebugLoc();
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//MachineRegisterInfo &MRI = MI.getParent()->getParent()->getRegInfo();
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//unsigned Reg = MRI.createVirtualRegister(PTX::RegF32RegisterClass);
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llvm_unreachable("FrameIndex should have been previously eliminated!");
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Index = 0;
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while (!MI.getOperand(Index).isFI()) {
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++Index;
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assert(Index < MI.getNumOperands() &&
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"Instr does not have a FrameIndex operand!");
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}
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int FrameIndex = MI.getOperand(Index).getIndex();
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DEBUG(dbgs() << "eliminateFrameIndex: " << MI);
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DEBUG(dbgs() << "- SPAdj: " << SPAdj << "\n");
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DEBUG(dbgs() << "- FrameIndex: " << FrameIndex << "\n");
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//MachineInstr* MI2 = BuildMI(MBB, II, dl, TII.get(PTX::LOAD_LOCAL_F32))
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//.addReg(Reg, RegState::Define).addImm(FrameIndex);
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//if (MI2->findFirstPredOperandIdx() == -1) {
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// MI2->addOperand(MachineOperand::CreateReg(PTX::NoRegister, /*IsDef=*/false));
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// MI2->addOperand(MachineOperand::CreateImm(PTX::PRED_NORMAL));
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//}
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//MI2->dump();
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//MachineOperand ESOp = MachineOperand::CreateES("__local__");
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// This frame index is post stack slot re-use assignments
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//MI.getOperand(Index).ChangeToRegister(Reg, false);
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MI.getOperand(Index).ChangeToImmediate(FrameIndex);
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//MI.getOperand(Index) = ESOp;
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}
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