1
0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-30 02:32:08 +00:00
llvm-6502/lib/Target/MSP430/MSP430MCInstLower.cpp
Chandler Carruth d04a8d4b33 Use the new script to sort the includes of every file under lib.
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
2012-12-03 16:50:05 +00:00

154 lines
4.8 KiB
C++

//===-- MSP430MCInstLower.cpp - Convert MSP430 MachineInstr to an MCInst --===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains code to lower MSP430 MachineInstrs to their corresponding
// MCInst records.
//
//===----------------------------------------------------------------------===//
#include "MSP430MCInstLower.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/Mangler.h"
using namespace llvm;
MCSymbol *MSP430MCInstLower::
GetGlobalAddressSymbol(const MachineOperand &MO) const {
switch (MO.getTargetFlags()) {
default: llvm_unreachable("Unknown target flag on GV operand");
case 0: break;
}
return Printer.Mang->getSymbol(MO.getGlobal());
}
MCSymbol *MSP430MCInstLower::
GetExternalSymbolSymbol(const MachineOperand &MO) const {
switch (MO.getTargetFlags()) {
default: llvm_unreachable("Unknown target flag on GV operand");
case 0: break;
}
return Printer.GetExternalSymbolSymbol(MO.getSymbolName());
}
MCSymbol *MSP430MCInstLower::
GetJumpTableSymbol(const MachineOperand &MO) const {
SmallString<256> Name;
raw_svector_ostream(Name) << Printer.MAI->getPrivateGlobalPrefix() << "JTI"
<< Printer.getFunctionNumber() << '_'
<< MO.getIndex();
switch (MO.getTargetFlags()) {
default: llvm_unreachable("Unknown target flag on GV operand");
case 0: break;
}
// Create a symbol for the name.
return Ctx.GetOrCreateSymbol(Name.str());
}
MCSymbol *MSP430MCInstLower::
GetConstantPoolIndexSymbol(const MachineOperand &MO) const {
SmallString<256> Name;
raw_svector_ostream(Name) << Printer.MAI->getPrivateGlobalPrefix() << "CPI"
<< Printer.getFunctionNumber() << '_'
<< MO.getIndex();
switch (MO.getTargetFlags()) {
default: llvm_unreachable("Unknown target flag on GV operand");
case 0: break;
}
// Create a symbol for the name.
return Ctx.GetOrCreateSymbol(Name.str());
}
MCSymbol *MSP430MCInstLower::
GetBlockAddressSymbol(const MachineOperand &MO) const {
switch (MO.getTargetFlags()) {
default: llvm_unreachable("Unknown target flag on GV operand");
case 0: break;
}
return Printer.GetBlockAddressSymbol(MO.getBlockAddress());
}
MCOperand MSP430MCInstLower::
LowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym) const {
// FIXME: We would like an efficient form for this, so we don't have to do a
// lot of extra uniquing.
const MCExpr *Expr = MCSymbolRefExpr::Create(Sym, Ctx);
switch (MO.getTargetFlags()) {
default: llvm_unreachable("Unknown target flag on GV operand");
case 0: break;
}
if (!MO.isJTI() && MO.getOffset())
Expr = MCBinaryExpr::CreateAdd(Expr,
MCConstantExpr::Create(MO.getOffset(), Ctx),
Ctx);
return MCOperand::CreateExpr(Expr);
}
void MSP430MCInstLower::Lower(const MachineInstr *MI, MCInst &OutMI) const {
OutMI.setOpcode(MI->getOpcode());
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
const MachineOperand &MO = MI->getOperand(i);
MCOperand MCOp;
switch (MO.getType()) {
default:
MI->dump();
llvm_unreachable("unknown operand type");
case MachineOperand::MO_Register:
// Ignore all implicit register operands.
if (MO.isImplicit()) continue;
MCOp = MCOperand::CreateReg(MO.getReg());
break;
case MachineOperand::MO_Immediate:
MCOp = MCOperand::CreateImm(MO.getImm());
break;
case MachineOperand::MO_MachineBasicBlock:
MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
MO.getMBB()->getSymbol(), Ctx));
break;
case MachineOperand::MO_GlobalAddress:
MCOp = LowerSymbolOperand(MO, GetGlobalAddressSymbol(MO));
break;
case MachineOperand::MO_ExternalSymbol:
MCOp = LowerSymbolOperand(MO, GetExternalSymbolSymbol(MO));
break;
case MachineOperand::MO_JumpTableIndex:
MCOp = LowerSymbolOperand(MO, GetJumpTableSymbol(MO));
break;
case MachineOperand::MO_ConstantPoolIndex:
MCOp = LowerSymbolOperand(MO, GetConstantPoolIndexSymbol(MO));
break;
case MachineOperand::MO_BlockAddress:
MCOp = LowerSymbolOperand(MO, GetBlockAddressSymbol(MO));
break;
case MachineOperand::MO_RegisterMask:
continue;
}
OutMI.addOperand(MCOp);
}
}