//
//===----------------------------------------------------------------------===//
+#include "InstPrinter/X86ATTInstPrinter.h"
#include "X86MCInstLower.h"
#include "X86AsmPrinter.h"
#include "X86COFFMachineModuleInfo.h"
-#include "X86MCAsmInfo.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
+#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.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;
+ case X86II::MO_SECREL: RefKind = MCSymbolRefExpr::VK_SECREL; break;
case X86II::MO_TLSGD: RefKind = MCSymbolRefExpr::VK_TLSGD; break;
case X86II::MO_GOTTPOFF: RefKind = MCSymbolRefExpr::VK_GOTTPOFF; break;
case X86II::MO_INDNTPOFF: RefKind = MCSymbolRefExpr::VK_INDNTPOFF; 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
/// a short fixed-register form.
static void SimplifyShortImmForm(MCInst &Inst, unsigned Opcode) {
unsigned ImmOp = Inst.getNumOperands() - 1;
- assert(Inst.getOperand(0).isReg() && Inst.getOperand(ImmOp).isImm() &&
+ assert(Inst.getOperand(0).isReg() &&
+ (Inst.getOperand(ImmOp).isImm() || Inst.getOperand(ImmOp).isExpr()) &&
((Inst.getNumOperands() == 3 && Inst.getOperand(1).isReg() &&
Inst.getOperand(0).getReg() == Inst.getOperand(1).getReg()) ||
Inst.getNumOperands() == 2) && "Unexpected instruction!");
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;
MCOp = LowerSymbolOperand(MO,
AsmPrinter.GetBlockAddressSymbol(MO.getBlockAddress()));
break;
+ case MachineOperand::MO_RegisterMask:
+ // Ignore call clobbers.
+ continue;
}
OutMI.addOperand(MCOp);
}
// 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);
assert(OutMI.getOperand(1+X86::AddrSegmentReg).getReg() == 0 &&
"LEA has segment specified!");
break;
- case X86::MOVZX16rr8: LowerSubReg32_Op0(OutMI, X86::MOVZX32rr8); break;
- case X86::MOVZX16rm8: LowerSubReg32_Op0(OutMI, X86::MOVZX32rm8); break;
- case X86::MOVSX16rr8: LowerSubReg32_Op0(OutMI, X86::MOVSX32rr8); break;
- case X86::MOVSX16rm8: LowerSubReg32_Op0(OutMI, X86::MOVSX32rm8); break;
case X86::MOVZX64rr32: LowerSubReg32_Op0(OutMI, X86::MOV32rr); break;
case X86::MOVZX64rm32: LowerSubReg32_Op0(OutMI, X86::MOV32rm); break;
case X86::MOV64ri64i32: LowerSubReg32_Op0(OutMI, X86::MOV32ri); break;
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_PCMPEQDrr); break;
- case X86::FsFLD0SS: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); break;
- case X86::FsFLD0SD: LowerUnaryToTwoAddr(OutMI, X86::PXORrr); 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;
case X86::V_SETALLONES: LowerUnaryToTwoAddr(OutMI, X86::PCMPEQDrr); break;
- case X86::AVX_SET0PS: LowerUnaryToTwoAddr(OutMI, X86::VXORPSrr); break;
case X86::AVX_SET0PSY: LowerUnaryToTwoAddr(OutMI, X86::VXORPSYrr); break;
- case X86::AVX_SET0PD: LowerUnaryToTwoAddr(OutMI, X86::VXORPDrr); break;
case X86::AVX_SET0PDY: LowerUnaryToTwoAddr(OutMI, X86::VXORPDYrr); break;
- case X86::AVX_SET0PI: LowerUnaryToTwoAddr(OutMI, X86::VPXORrr); break;
+ case X86::AVX_SETALLONES: LowerUnaryToTwoAddr(OutMI, X86::VPCMPEQDrr); break;
+ case X86::AVX2_SETALLONES: LowerUnaryToTwoAddr(OutMI, X86::VPCMPEQDYrr);break;
+ case X86::AVX2_SET0: LowerUnaryToTwoAddr(OutMI, X86::VPXORYrr); break;
case X86::MOV16r0:
LowerSubReg32_Op0(OutMI, X86::MOV32r0); // MOV16r0 -> MOV32r0
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:
case X86::TAILJMPd64: {
unsigned Opcode;
switch (OutMI.getOpcode()) {
- default: assert(0 && "Invalid opcode");
+ default: llvm_unreachable("Invalid opcode");
case X86::TAILJMPr: Opcode = X86::JMP32r; break;
case X86::TAILJMPd:
case X86::TAILJMPd64: Opcode = X86::JMP_1; break;
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
case X86::JLE_4: OutMI.setOpcode(X86::JLE_1); break;
case X86::JG_4: OutMI.setOpcode(X86::JG_1); break;
+ // Atomic load and store require a separate pseudo-inst because Acquire
+ // implies mayStore and Release implies mayLoad; fix these to regular MOV
+ // instructions here
+ case X86::ACQUIRE_MOV8rm: OutMI.setOpcode(X86::MOV8rm); goto ReSimplify;
+ case X86::ACQUIRE_MOV16rm: OutMI.setOpcode(X86::MOV16rm); goto ReSimplify;
+ case X86::ACQUIRE_MOV32rm: OutMI.setOpcode(X86::MOV32rm); goto ReSimplify;
+ case X86::ACQUIRE_MOV64rm: OutMI.setOpcode(X86::MOV64rm); goto ReSimplify;
+ case X86::RELEASE_MOV8mr: OutMI.setOpcode(X86::MOV8mr); goto ReSimplify;
+ case X86::RELEASE_MOV16mr: OutMI.setOpcode(X86::MOV16mr); goto ReSimplify;
+ case X86::RELEASE_MOV32mr: OutMI.setOpcode(X86::MOV32mr); goto ReSimplify;
+ case X86::RELEASE_MOV64mr: OutMI.setOpcode(X86::MOV64mr); goto ReSimplify;
+
// We don't currently select the correct instruction form for instructions
// which have a short %eax, etc. form. Handle this by custom lowering, for
// now.
case X86::XOR16ri: SimplifyShortImmForm(OutMI, X86::XOR16i16); break;
case X86::XOR32ri: SimplifyShortImmForm(OutMI, X86::XOR32i32); break;
case X86::XOR64ri32: SimplifyShortImmForm(OutMI, X86::XOR64i32); break;
+
+ case X86::MORESTACK_RET:
+ OutMI.setOpcode(X86::RET);
+ break;
+
+ case X86::MORESTACK_RET_RESTORE_R10: {
+ MCInst retInst;
+
+ OutMI.setOpcode(X86::MOV64rr);
+ OutMI.addOperand(MCOperand::CreateReg(X86::R10));
+ OutMI.addOperand(MCOperand::CreateReg(X86::RAX));
+
+ retInst.setOpcode(X86::RET);
+ AsmPrinter.OutStreamer.EmitInstruction(retInst);
+ break;
+ }
}
}
+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) {
+ OutStreamer.EmitCodeRegion();
+
X86MCInstLower MCInstLowering(Mang, *MF, *this);
switch (MI->getOpcode()) {
case TargetOpcode::DBG_VALUE:
if (OutStreamer.hasRawTextSupport())
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),
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