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Refactor a bit for legibility.

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llvm-svn: 121790
This commit is contained in:
Jim Grosbach 2010-12-14 21:10:47 +00:00
parent ef58d5968e
commit e84e95e6d2
1 changed files with 27 additions and 28 deletions
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55
lib/Target/ARM/ARMAsmPrinter.cpp
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@ -713,6 +713,18 @@ void ARMAsmPrinter::PrintDebugValueComment(const MachineInstr *MI,
printOperand(MI, NOps-2, OS);
}
static void populateADROperands(MCInst &Inst, unsigned Dest,
const MCSymbol *Label,
unsigned pred, unsigned ccreg,
MCContext &Ctx) {
const MCExpr *SymbolExpr = MCSymbolRefExpr::Create(Label, Ctx);
Inst.addOperand(MCOperand::CreateReg(Dest));
Inst.addOperand(MCOperand::CreateExpr(SymbolExpr));
// Add predicate operands.
Inst.addOperand(MCOperand::CreateImm(pred));
Inst.addOperand(MCOperand::CreateReg(ccreg));
}
void ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) {
switch (MI->getOpcode()) {
default: break;
@ -734,42 +746,29 @@ void ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) {
}
return;
}
case ARM::t2LEApcrel:
case ARM::LEApcrel: {
case ARM::LEApcrel:
case ARM::t2LEApcrel: {
// FIXME: Need to also handle globals and externals
assert (MI->getOperand(1).isCPI());
unsigned LabelId = MI->getOperand(1).getIndex();
MCSymbol *Sym = GetCPISymbol(LabelId);
const MCExpr *SymbolExpr = MCSymbolRefExpr::Create(Sym, OutContext);
MCInst TmpInst;
if (MI->getOpcode() == ARM::LEApcrel)
TmpInst.setOpcode(ARM::ADR);
else
TmpInst.setOpcode(ARM::t2ADR);
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
TmpInst.addOperand(MCOperand::CreateExpr(SymbolExpr));
// Add predicate operands.
TmpInst.addOperand(MCOperand::CreateImm(MI->getOperand(2).getImm()));
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(3).getReg()));
TmpInst.setOpcode(MI->getOpcode() == ARM::t2LEApcrel
? ARM::t2ADR : ARM::ADR);
populateADROperands(TmpInst, MI->getOperand(0).getReg(),
GetCPISymbol(MI->getOperand(1).getIndex()),
MI->getOperand(2).getImm(), MI->getOperand(3).getReg(),
OutContext);
OutStreamer.EmitInstruction(TmpInst);
return;
}
case ARM::t2LEApcrelJT:
case ARM::LEApcrelJT: {
unsigned JTI = MI->getOperand(1).getIndex();
unsigned Id = MI->getOperand(2).getImm();
MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, Id);
const MCExpr *SymbolExpr = MCSymbolRefExpr::Create(JTISymbol, OutContext);
MCInst TmpInst;
if (MI->getOpcode() == ARM::LEApcrelJT)
TmpInst.setOpcode(ARM::ADR);
else
TmpInst.setOpcode(ARM::t2ADR);
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
TmpInst.addOperand(MCOperand::CreateExpr(SymbolExpr));
// Add predicate operands.
TmpInst.addOperand(MCOperand::CreateImm(MI->getOperand(3).getImm()));
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(4).getReg()));
TmpInst.setOpcode(MI->getOpcode() == ARM::t2LEApcrelJT
? ARM::t2ADR : ARM::ADR);
populateADROperands(TmpInst, MI->getOperand(0).getReg(),
GetARMJTIPICJumpTableLabel2(MI->getOperand(1).getIndex(),
MI->getOperand(2).getImm()),
MI->getOperand(3).getImm(), MI->getOperand(4).getReg(),
OutContext);
OutStreamer.EmitInstruction(TmpInst);
return;
}