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X86/exp-asm-printer: Lower MachineOperand::MO_JumpTableIndex to MCOperand.
- Down to 7 failures on 403.gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80605 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -24,6 +24,7 @@
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#include "llvm/DerivedTypes.h"
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#include "llvm/Module.h"
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#include "llvm/Type.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/Statistic.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Assembly/Writer.h"
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@ -810,7 +811,7 @@ MCOperand X86ATTAsmPrinter::LowerGlobalAddressOperand(const MachineOperand &MO){
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}
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MCOperand X86ATTAsmPrinter::
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LowerExternalSymbolOperand(const MachineOperand &MO){
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LowerExternalSymbolOperand(const MachineOperand &MO) {
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std::string Name = Mang->makeNameProper(MO.getSymbolName());
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if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) {
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FnStubs[Name+"$stub"] = Name;
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@ -829,6 +830,35 @@ LowerExternalSymbolOperand(const MachineOperand &MO){
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return MCOperand::CreateExpr(Expr);
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}
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MCOperand X86ATTAsmPrinter::LowerJumpTableOperand(const MachineOperand &MO) {
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SmallString<256> Name;
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raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI"
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<< getFunctionNumber() << '_' << MO.getIndex();
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MCSymbol *NegatedSymbol = 0;
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switch (MO.getTargetFlags()) {
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default:
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llvm_unreachable("Unknown target flag on GV operand");
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case X86II::MO_PIC_BASE_OFFSET:
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case X86II::MO_DARWIN_NONLAZY_PIC_BASE:
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case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE:
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// Subtract the pic base.
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NegatedSymbol = GetPICBaseSymbol();
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break;
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}
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// Create a symbol for the name.
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MCSymbol *Sym = OutContext.GetOrCreateSymbol(Name.str());
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// FIXME: We would like an efficient form for this, so we don't have to do a
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// lot of extra uniquing.
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const MCExpr *Expr = MCSymbolRefExpr::Create(Sym, OutContext);
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if (NegatedSymbol)
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Expr = MCBinaryExpr::CreateSub(Expr, MCSymbolRefExpr::Create(NegatedSymbol,
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OutContext),
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OutContext);
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return MCOperand::CreateExpr(Expr);
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}
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/// printMachineInstruction -- Print out a single X86 LLVM instruction MI in
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/// AT&T syntax to the current output stream.
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@ -895,6 +925,9 @@ void X86ATTAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
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O.flush();
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errs() << "Cannot lower operand #" << i << " of :" << *MI;
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llvm_unreachable("Unimp");
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case MachineOperand::MO_JumpTableIndex:
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MCOp = LowerJumpTableOperand(MO);
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break;
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case MachineOperand::MO_Register:
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MCOp = MCOperand::CreateReg(MO.getReg());
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break;
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@ -69,6 +69,7 @@ class VISIBILITY_HIDDEN X86ATTAsmPrinter : public AsmPrinter {
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// New MCInst printing stuff.
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void printInstruction(const MCInst *MI);
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MCSymbol *GetPICBaseSymbol();
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MCOperand LowerJumpTableOperand(const MachineOperand &MO);
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MCOperand LowerGlobalAddressOperand(const MachineOperand &MO);
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MCOperand LowerExternalSymbolOperand(const MachineOperand &MO);
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