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Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
144 lines
4.8 KiB
C++
144 lines
4.8 KiB
C++
//===-- MipsSERegisterInfo.cpp - MIPS32/64 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 MIPS32/64 implementation of the TargetRegisterInfo
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// class.
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//
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//===----------------------------------------------------------------------===//
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#include "MipsSERegisterInfo.h"
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#include "Mips.h"
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#include "MipsAnalyzeImmediate.h"
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#include "MipsMachineFunction.h"
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#include "MipsSEInstrInfo.h"
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#include "MipsSubtarget.h"
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#include "llvm/ADT/BitVector.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/CodeGen/MachineFrameInfo.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/CodeGen/ValueTypes.h"
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#include "llvm/Constants.h"
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#include "llvm/DebugInfo.h"
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#include "llvm/Function.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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#include "llvm/Target/TargetFrameLowering.h"
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#include "llvm/Target/TargetInstrInfo.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Target/TargetOptions.h"
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#include "llvm/Type.h"
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using namespace llvm;
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MipsSERegisterInfo::MipsSERegisterInfo(const MipsSubtarget &ST,
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const MipsSEInstrInfo &I)
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: MipsRegisterInfo(ST), TII(I) {}
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bool MipsSERegisterInfo::
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requiresRegisterScavenging(const MachineFunction &MF) const {
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return true;
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}
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bool MipsSERegisterInfo::
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requiresFrameIndexScavenging(const MachineFunction &MF) const {
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return true;
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}
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// This function eliminate ADJCALLSTACKDOWN,
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// ADJCALLSTACKUP pseudo instructions
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void MipsSERegisterInfo::
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eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
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MachineBasicBlock::iterator I) const {
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const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
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if (!TFI->hasReservedCallFrame(MF)) {
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int64_t Amount = I->getOperand(0).getImm();
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if (I->getOpcode() == Mips::ADJCALLSTACKDOWN)
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Amount = -Amount;
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const MipsSEInstrInfo *II = static_cast<const MipsSEInstrInfo*>(&TII);
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unsigned SP = Subtarget.isABI_N64() ? Mips::SP_64 : Mips::SP;
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II->adjustStackPtr(SP, Amount, MBB, I);
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}
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MBB.erase(I);
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}
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void MipsSERegisterInfo::eliminateFI(MachineBasicBlock::iterator II,
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unsigned OpNo, int FrameIndex,
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uint64_t StackSize,
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int64_t SPOffset) const {
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MachineInstr &MI = *II;
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MachineFunction &MF = *MI.getParent()->getParent();
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MachineFrameInfo *MFI = MF.getFrameInfo();
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const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
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int MinCSFI = 0;
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int MaxCSFI = -1;
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if (CSI.size()) {
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MinCSFI = CSI[0].getFrameIdx();
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MaxCSFI = CSI[CSI.size() - 1].getFrameIdx();
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}
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// The following stack frame objects are always referenced relative to $sp:
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// 1. Outgoing arguments.
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// 2. Pointer to dynamically allocated stack space.
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// 3. Locations for callee-saved registers.
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// Everything else is referenced relative to whatever register
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// getFrameRegister() returns.
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unsigned FrameReg;
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if (FrameIndex >= MinCSFI && FrameIndex <= MaxCSFI)
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FrameReg = Subtarget.isABI_N64() ? Mips::SP_64 : Mips::SP;
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else
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FrameReg = getFrameRegister(MF);
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// Calculate final offset.
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// - There is no need to change the offset if the frame object is one of the
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// following: an outgoing argument, pointer to a dynamically allocated
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// stack space or a $gp restore location,
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// - If the frame object is any of the following, its offset must be adjusted
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// by adding the size of the stack:
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// incoming argument, callee-saved register location or local variable.
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bool IsKill = false;
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int64_t Offset;
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Offset = SPOffset + (int64_t)StackSize;
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Offset += MI.getOperand(OpNo + 1).getImm();
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DEBUG(errs() << "Offset : " << Offset << "\n" << "<--------->\n");
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// If MI is not a debug value, make sure Offset fits in the 16-bit immediate
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// field.
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if (!MI.isDebugValue() && !isInt<16>(Offset)) {
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MachineBasicBlock &MBB = *MI.getParent();
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DebugLoc DL = II->getDebugLoc();
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unsigned ADDu = Subtarget.isABI_N64() ? Mips::DADDu : Mips::ADDu;
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unsigned NewImm;
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unsigned Reg = TII.loadImmediate(Offset, MBB, II, DL, &NewImm);
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BuildMI(MBB, II, DL, TII.get(ADDu), Reg).addReg(FrameReg)
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.addReg(Reg, RegState::Kill);
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FrameReg = Reg;
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Offset = SignExtend64<16>(NewImm);
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IsKill = true;
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}
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MI.getOperand(OpNo).ChangeToRegister(FrameReg, false, false, IsKill);
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MI.getOperand(OpNo + 1).ChangeToImmediate(Offset);
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}
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