//
//===----------------------------------------------------------------------===//
+#include "InstPrinter/X86ATTInstPrinter.h"
#include "X86MCInstLower.h"
#include "X86AsmPrinter.h"
#include "X86COFFMachineModuleInfo.h"
}
-MCSymbol *X86MCInstLower::GetPICBaseSymbol() const {
- return static_cast<const X86TargetLowering*>(TM.getTargetLowering())->
- getPICBaseSymbol(&MF, Ctx);
-}
-
/// GetSymbolFromOperand - Lower an MO_GlobalAddress or MO_ExternalSymbol
/// operand to an MCSymbol.
MCSymbol *X86MCInstLower::
Expr = MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_TLVP, Ctx);
// Subtract the pic base.
Expr = MCBinaryExpr::CreateSub(Expr,
- MCSymbolRefExpr::Create(GetPICBaseSymbol(),
+ MCSymbolRefExpr::Create(MF.getPICBaseSymbol(),
Ctx),
Ctx);
break;
Expr = MCSymbolRefExpr::Create(Sym, Ctx);
// Subtract the pic base.
Expr = MCBinaryExpr::CreateSub(Expr,
- MCSymbolRefExpr::Create(GetPICBaseSymbol(), Ctx),
+ MCSymbolRefExpr::Create(MF.getPICBaseSymbol(), Ctx),
Ctx);
if (MO.isJTI() && MAI.hasSetDirective()) {
// If .set directive is supported, use it to reduce the number of
MO.getMBB()->getSymbol(), Ctx));
break;
case MachineOperand::MO_GlobalAddress:
- MCOp = LowerSymbolOperand(MO, GetSymbolFromOperand(MO));
- break;
case MachineOperand::MO_ExternalSymbol:
MCOp = LowerSymbolOperand(MO, GetSymbolFromOperand(MO));
break;
}
// Handle a few special cases to eliminate operand modifiers.
+ReSimplify:
switch (OutMI.getOpcode()) {
case X86::LEA64_32r: // Handle 'subreg rewriting' for the lea64_32mem operand.
lower_lea64_32mem(&OutMI, 1);
case X86::SETB_C64r: LowerUnaryToTwoAddr(OutMI, X86::SBB64rr); break;
case X86::MOV8r0: LowerUnaryToTwoAddr(OutMI, X86::XOR8rr); break;
case X86::MOV32r0: LowerUnaryToTwoAddr(OutMI, X86::XOR32rr); break;
- case X86::MMX_V_SET0: LowerUnaryToTwoAddr(OutMI, X86::MMX_PXORrr); break;
- case X86::MMX_V_SETALLONES:
- LowerUnaryToTwoAddr(OutMI, X86::MMX_PCMPEQDirr); break;
case X86::FsFLD0SS: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
case X86::FsFLD0SD: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
+ case X86::VFsFLD0SS: LowerUnaryToTwoAddr(OutMI, X86::VPXORrr); break;
+ case X86::VFsFLD0SD: LowerUnaryToTwoAddr(OutMI, X86::VPXORrr); break;
case X86::V_SET0PS: LowerUnaryToTwoAddr(OutMI, X86::XORPSrr); break;
case X86::V_SET0PD: LowerUnaryToTwoAddr(OutMI, X86::XORPDrr); break;
case X86::V_SET0PI: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
break;
}
+ case X86::EH_RETURN:
+ case X86::EH_RETURN64: {
+ OutMI = MCInst();
+ OutMI.setOpcode(X86::RET);
+ break;
+ }
+
// TAILJMPd, TAILJMPd64 - Lower to the correct jump instructions.
case X86::TAILJMPr:
case X86::TAILJMPd:
break;
}
+ // These are pseudo-ops for OR to help with the OR->ADD transformation. We do
+ // this with an ugly goto in case the resultant OR uses EAX and needs the
+ // short form.
+ case X86::ADD16rr_DB: OutMI.setOpcode(X86::OR16rr); goto ReSimplify;
+ case X86::ADD32rr_DB: OutMI.setOpcode(X86::OR32rr); goto ReSimplify;
+ case X86::ADD64rr_DB: OutMI.setOpcode(X86::OR64rr); goto ReSimplify;
+ case X86::ADD16ri_DB: OutMI.setOpcode(X86::OR16ri); goto ReSimplify;
+ case X86::ADD32ri_DB: OutMI.setOpcode(X86::OR32ri); goto ReSimplify;
+ case X86::ADD64ri32_DB: OutMI.setOpcode(X86::OR64ri32); goto ReSimplify;
+ case X86::ADD16ri8_DB: OutMI.setOpcode(X86::OR16ri8); goto ReSimplify;
+ case X86::ADD32ri8_DB: OutMI.setOpcode(X86::OR32ri8); goto ReSimplify;
+ case X86::ADD64ri8_DB: OutMI.setOpcode(X86::OR64ri8); goto ReSimplify;
+
// The assembler backend wants to see branches in their small form and relax
// them to their large form. The JIT can only handle the large form because
// it does not do relaxation. For now, translate the large form to the
}
}
+static void LowerTlsAddr(MCStreamer &OutStreamer,
+ X86MCInstLower &MCInstLowering,
+ const MachineInstr &MI) {
+ bool is64Bits = MI.getOpcode() == X86::TLS_addr64;
+ MCContext &context = OutStreamer.getContext();
+
+ if (is64Bits) {
+ MCInst prefix;
+ prefix.setOpcode(X86::DATA16_PREFIX);
+ OutStreamer.EmitInstruction(prefix);
+ }
+ MCSymbol *sym = MCInstLowering.GetSymbolFromOperand(MI.getOperand(3));
+ const MCSymbolRefExpr *symRef =
+ MCSymbolRefExpr::Create(sym, MCSymbolRefExpr::VK_TLSGD, context);
+
+ MCInst LEA;
+ if (is64Bits) {
+ LEA.setOpcode(X86::LEA64r);
+ LEA.addOperand(MCOperand::CreateReg(X86::RDI)); // dest
+ LEA.addOperand(MCOperand::CreateReg(X86::RIP)); // base
+ LEA.addOperand(MCOperand::CreateImm(1)); // scale
+ LEA.addOperand(MCOperand::CreateReg(0)); // index
+ LEA.addOperand(MCOperand::CreateExpr(symRef)); // disp
+ LEA.addOperand(MCOperand::CreateReg(0)); // seg
+ } else {
+ LEA.setOpcode(X86::LEA32r);
+ LEA.addOperand(MCOperand::CreateReg(X86::EAX)); // dest
+ LEA.addOperand(MCOperand::CreateReg(0)); // base
+ LEA.addOperand(MCOperand::CreateImm(1)); // scale
+ LEA.addOperand(MCOperand::CreateReg(X86::EBX)); // index
+ LEA.addOperand(MCOperand::CreateExpr(symRef)); // disp
+ LEA.addOperand(MCOperand::CreateReg(0)); // seg
+ }
+ OutStreamer.EmitInstruction(LEA);
+
+ if (is64Bits) {
+ MCInst prefix;
+ prefix.setOpcode(X86::DATA16_PREFIX);
+ OutStreamer.EmitInstruction(prefix);
+ prefix.setOpcode(X86::DATA16_PREFIX);
+ OutStreamer.EmitInstruction(prefix);
+ prefix.setOpcode(X86::REX64_PREFIX);
+ OutStreamer.EmitInstruction(prefix);
+ }
+
+ MCInst call;
+ if (is64Bits)
+ call.setOpcode(X86::CALL64pcrel32);
+ else
+ call.setOpcode(X86::CALLpcrel32);
+ StringRef name = is64Bits ? "__tls_get_addr" : "___tls_get_addr";
+ MCSymbol *tlsGetAddr = context.GetOrCreateSymbol(name);
+ const MCSymbolRefExpr *tlsRef =
+ MCSymbolRefExpr::Create(tlsGetAddr,
+ MCSymbolRefExpr::VK_PLT,
+ context);
+
+ call.addOperand(MCOperand::CreateExpr(tlsRef));
+ OutStreamer.EmitInstruction(call);
+}
void X86AsmPrinter::EmitInstruction(const MachineInstr *MI) {
X86MCInstLower MCInstLowering(Mang, *MF, *this);
OutStreamer.EmitRawText(StringRef("\t#MEMBARRIER"));
return;
+
+ case X86::EH_RETURN:
+ case X86::EH_RETURN64: {
+ // Lower these as normal, but add some comments.
+ unsigned Reg = MI->getOperand(0).getReg();
+ OutStreamer.AddComment(StringRef("eh_return, addr: %") +
+ X86ATTInstPrinter::getRegisterName(Reg));
+ break;
+ }
case X86::TAILJMPr:
case X86::TAILJMPd:
case X86::TAILJMPd64:
// Lower these as normal, but add some comments.
OutStreamer.AddComment("TAILCALL");
break;
-
+
+ case X86::TLS_addr32:
+ case X86::TLS_addr64:
+ return LowerTlsAddr(OutStreamer, MCInstLowering, *MI);
+
case X86::MOVPC32r: {
MCInst TmpInst;
// This is a pseudo op for a two instruction sequence with a label, which
// popl %esi
// Emit the call.
- MCSymbol *PICBase = MCInstLowering.GetPICBaseSymbol();
+ MCSymbol *PICBase = MF->getPICBaseSymbol();
TmpInst.setOpcode(X86::CALLpcrel32);
// FIXME: We would like an efficient form for this, so we don't have to do a
// lot of extra uniquing.
const MCExpr *DotExpr = MCSymbolRefExpr::Create(DotSym, OutContext);
const MCExpr *PICBase =
- MCSymbolRefExpr::Create(MCInstLowering.GetPICBaseSymbol(), OutContext);
+ MCSymbolRefExpr::Create(MF->getPICBaseSymbol(), OutContext);
DotExpr = MCBinaryExpr::CreateSub(DotExpr, PICBase, OutContext);
DotExpr = MCBinaryExpr::CreateAdd(MCSymbolRefExpr::Create(OpSym,OutContext),