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authorChris Lattner <sabre@nondot.org>2009-09-20 07:41:30 +0000
committerChris Lattner <sabre@nondot.org>2009-09-20 07:41:30 +0000
commit0dc32ea0ef14c7e7f88edb12763a7828052a7fbd (patch)
tree4f210fef82bec4c5b9da11c02d6c77d6577f8baa
parentd4db0fc1548b8463b24bb1334e9f5a19deb1edb8 (diff)
rename X86ATTAsmPrinter.cpp -> X86AsmPrinter.cpp likewise the .h file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82394 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Target/X86/AsmPrinter/CMakeLists.txt3
-rw-r--r--lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp947
-rw-r--r--lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp941
-rw-r--r--lib/Target/X86/AsmPrinter/X86AsmPrinter.h (renamed from lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h)6
-rw-r--r--lib/Target/X86/AsmPrinter/X86MCInstLower.cpp2
5 files changed, 941 insertions, 958 deletions
diff --git a/lib/Target/X86/AsmPrinter/CMakeLists.txt b/lib/Target/X86/AsmPrinter/CMakeLists.txt
index e86530d621..8aec1e860a 100644
--- a/lib/Target/X86/AsmPrinter/CMakeLists.txt
+++ b/lib/Target/X86/AsmPrinter/CMakeLists.txt
@@ -1,9 +1,8 @@
include_directories( ${CMAKE_CURRENT_BINARY_DIR}/.. ${CMAKE_CURRENT_SOURCE_DIR}/.. )
add_llvm_library(LLVMX86AsmPrinter
- X86ATTAsmPrinter.cpp
- X86ATTInstPrinter.cpp
X86AsmPrinter.cpp
+ X86ATTInstPrinter.cpp
X86IntelInstPrinter.cpp
X86MCInstLower.cpp
)
diff --git a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp b/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
deleted file mode 100644
index 4963d43867..0000000000
--- a/lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
+++ /dev/null
@@ -1,947 +0,0 @@
-//===-- X86ATTAsmPrinter.cpp - Convert X86 LLVM code to AT&T assembly -----===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains a printer that converts from our internal representation
-// of machine-dependent LLVM code to AT&T format assembly
-// language. This printer is the output mechanism used by `llc'.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "asm-printer"
-#include "X86ATTAsmPrinter.h"
-#include "X86ATTInstPrinter.h"
-#include "X86IntelInstPrinter.h"
-#include "X86MCInstLower.h"
-#include "X86.h"
-#include "X86COFF.h"
-#include "X86COFFMachineModuleInfo.h"
-#include "X86MachineFunctionInfo.h"
-#include "X86TargetMachine.h"
-#include "llvm/CallingConv.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Module.h"
-#include "llvm/Type.h"
-#include "llvm/Assembly/Writer.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/CodeGen/MachineJumpTableInfo.h"
-#include "llvm/CodeGen/MachineModuleInfoImpls.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-#include "llvm/Target/TargetOptions.h"
-#include "llvm/Target/TargetRegistry.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Statistic.h"
-using namespace llvm;
-
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
-//===----------------------------------------------------------------------===//
-// Primitive Helper Functions.
-//===----------------------------------------------------------------------===//
-
-void X86AsmPrinter::printMCInst(const MCInst *MI) {
- if (MAI->getAssemblerDialect() == 0)
- X86ATTInstPrinter(O, *MAI).printInstruction(MI);
- else
- X86IntelInstPrinter(O, *MAI).printInstruction(MI);
-}
-
-void X86AsmPrinter::PrintPICBaseSymbol() const {
- // FIXME: Gross const cast hack.
- X86AsmPrinter *AP = const_cast<X86AsmPrinter*>(this);
- X86MCInstLower(OutContext, 0, *AP).GetPICBaseSymbol()->print(O, MAI);
-}
-
-void X86AsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
- unsigned FnAlign = MF.getAlignment();
- const Function *F = MF.getFunction();
-
- if (Subtarget->isTargetCygMing()) {
- X86COFFMachineModuleInfo &COFFMMI =
- MMI->getObjFileInfo<X86COFFMachineModuleInfo>();
- COFFMMI.DecorateCygMingName(CurrentFnName, F, *TM.getTargetData());
- }
-
- OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
- EmitAlignment(FnAlign, F);
-
- switch (F->getLinkage()) {
- default: llvm_unreachable("Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- case Function::PrivateLinkage:
- break;
- case Function::DLLExportLinkage:
- case Function::ExternalLinkage:
- O << "\t.globl\t" << CurrentFnName << '\n';
- break;
- case Function::LinkerPrivateLinkage:
- case Function::LinkOnceAnyLinkage:
- case Function::LinkOnceODRLinkage:
- case Function::WeakAnyLinkage:
- case Function::WeakODRLinkage:
- if (Subtarget->isTargetDarwin()) {
- O << "\t.globl\t" << CurrentFnName << '\n';
- O << MAI->getWeakDefDirective() << CurrentFnName << '\n';
- } else if (Subtarget->isTargetCygMing()) {
- O << "\t.globl\t" << CurrentFnName << "\n"
- "\t.linkonce discard\n";
- } else {
- O << "\t.weak\t" << CurrentFnName << '\n';
- }
- break;
- }
-
- printVisibility(CurrentFnName, F->getVisibility());
-
- if (Subtarget->isTargetELF())
- O << "\t.type\t" << CurrentFnName << ",@function\n";
- else if (Subtarget->isTargetCygMing()) {
- O << "\t.def\t " << CurrentFnName
- << ";\t.scl\t" <<
- (F->hasInternalLinkage() ? COFF::C_STAT : COFF::C_EXT)
- << ";\t.type\t" << (COFF::DT_FCN << COFF::N_BTSHFT)
- << ";\t.endef\n";
- }
-
- O << CurrentFnName << ':';
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << ' ';
- WriteAsOperand(O, F, /*PrintType=*/false, F->getParent());
- }
- O << '\n';
-
- // Add some workaround for linkonce linkage on Cygwin\MinGW
- if (Subtarget->isTargetCygMing() &&
- (F->hasLinkOnceLinkage() || F->hasWeakLinkage()))
- O << "Lllvm$workaround$fake$stub$" << CurrentFnName << ":\n";
-}
-
-/// runOnMachineFunction - This uses the printMachineInstruction()
-/// method to print assembly for each instruction.
-///
-bool X86AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- const Function *F = MF.getFunction();
- this->MF = &MF;
- CallingConv::ID CC = F->getCallingConv();
-
- SetupMachineFunction(MF);
- O << "\n\n";
-
- if (Subtarget->isTargetCOFF()) {
- X86COFFMachineModuleInfo &COFFMMI =
- MMI->getObjFileInfo<X86COFFMachineModuleInfo>();
-
- // Populate function information map. Don't want to populate
- // non-stdcall or non-fastcall functions' information right now.
- if (CC == CallingConv::X86_StdCall || CC == CallingConv::X86_FastCall)
- COFFMMI.AddFunctionInfo(F, *MF.getInfo<X86MachineFunctionInfo>());
- }
-
- // Print out constants referenced by the function
- EmitConstantPool(MF.getConstantPool());
-
- // Print the 'header' of function
- emitFunctionHeader(MF);
-
- // Emit pre-function debug and/or EH information.
- if (MAI->doesSupportDebugInformation() || MAI->doesSupportExceptionHandling())
- DW->BeginFunction(&MF);
-
- // Print out code for the function.
- bool hasAnyRealCode = false;
- for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
- I != E; ++I) {
- // Print a label for the basic block.
- if (!VerboseAsm && (I->pred_empty() || I->isOnlyReachableByFallthrough())) {
- // This is an entry block or a block that's only reachable via a
- // fallthrough edge. In non-VerboseAsm mode, don't print the label.
- } else {
- EmitBasicBlockStart(I);
- O << '\n';
- }
- for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
- II != IE; ++II) {
- // Print the assembly for the instruction.
- if (!II->isLabel())
- hasAnyRealCode = true;
- printMachineInstruction(II);
- }
- }
-
- if (Subtarget->isTargetDarwin() && !hasAnyRealCode) {
- // If the function is empty, then we need to emit *something*. Otherwise,
- // the function's label might be associated with something that it wasn't
- // meant to be associated with. We emit a noop in this situation.
- // We are assuming inline asms are code.
- O << "\tnop\n";
- }
-
- if (MAI->hasDotTypeDotSizeDirective())
- O << "\t.size\t" << CurrentFnName << ", .-" << CurrentFnName << '\n';
-
- // Emit post-function debug information.
- if (MAI->doesSupportDebugInformation() || MAI->doesSupportExceptionHandling())
- DW->EndFunction(&MF);
-
- // Print out jump tables referenced by the function.
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
-
- // We didn't modify anything.
- return false;
-}
-
-/// printSymbolOperand - Print a raw symbol reference operand. This handles
-/// jump tables, constant pools, global address and external symbols, all of
-/// which print to a label with various suffixes for relocation types etc.
-void X86AsmPrinter::printSymbolOperand(const MachineOperand &MO) {
- switch (MO.getType()) {
- default: llvm_unreachable("unknown symbol type!");
- case MachineOperand::MO_JumpTableIndex:
- O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_'
- << MO.getIndex();
- break;
- case MachineOperand::MO_ConstantPoolIndex:
- O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_'
- << MO.getIndex();
- printOffset(MO.getOffset());
- break;
- case MachineOperand::MO_GlobalAddress: {
- const GlobalValue *GV = MO.getGlobal();
-
- const char *Suffix = "";
- if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB)
- Suffix = "$stub";
- else if (MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY ||
- MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY_PIC_BASE ||
- MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE)
- Suffix = "$non_lazy_ptr";
-
- std::string Name = Mang->getMangledName(GV, Suffix, Suffix[0] != '\0');
- if (Subtarget->isTargetCygMing()) {
- X86COFFMachineModuleInfo &COFFMMI =
- MMI->getObjFileInfo<X86COFFMachineModuleInfo>();
- COFFMMI.DecorateCygMingName(Name, GV, *TM.getTargetData());
- }
-
- // Handle dllimport linkage.
- if (MO.getTargetFlags() == X86II::MO_DLLIMPORT)
- Name = "__imp_" + Name;
-
- if (MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY ||
- MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY_PIC_BASE) {
- SmallString<128> NameStr;
- Mang->getNameWithPrefix(NameStr, GV, true);
- NameStr += "$non_lazy_ptr";
- MCSymbol *Sym = OutContext.GetOrCreateSymbol(NameStr.str());
-
- const MCSymbol *&StubSym =
- MMI->getObjFileInfo<MachineModuleInfoMachO>().getGVStubEntry(Sym);
- if (StubSym == 0) {
- NameStr.clear();
- Mang->getNameWithPrefix(NameStr, GV, false);
- StubSym = OutContext.GetOrCreateSymbol(NameStr.str());
- }
- } else if (MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE){
- SmallString<128> NameStr;
- Mang->getNameWithPrefix(NameStr, GV, true);
- NameStr += "$non_lazy_ptr";
- MCSymbol *Sym = OutContext.GetOrCreateSymbol(NameStr.str());
- const MCSymbol *&StubSym =
- MMI->getObjFileInfo<MachineModuleInfoMachO>().getHiddenGVStubEntry(Sym);
- if (StubSym == 0) {
- NameStr.clear();
- Mang->getNameWithPrefix(NameStr, GV, false);
- StubSym = OutContext.GetOrCreateSymbol(NameStr.str());
- }
- } else if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) {
- SmallString<128> NameStr;
- Mang->getNameWithPrefix(NameStr, GV, true);
- NameStr += "$stub";
- MCSymbol *Sym = OutContext.GetOrCreateSymbol(NameStr.str());
- const MCSymbol *&StubSym =
- MMI->getObjFileInfo<MachineModuleInfoMachO>().getFnStubEntry(Sym);
- if (StubSym == 0) {
- NameStr.clear();
- Mang->getNameWithPrefix(NameStr, GV, false);
- StubSym = OutContext.GetOrCreateSymbol(NameStr.str());
- }
- }
-
- // If the name begins with a dollar-sign, enclose it in parens. We do this
- // to avoid having it look like an integer immediate to the assembler.
- if (Name[0] == '$')
- O << '(' << Name << ')';
- else
- O << Name;
-
- printOffset(MO.getOffset());
- break;
- }
- case MachineOperand::MO_ExternalSymbol: {
- std::string Name = Mang->makeNameProper(MO.getSymbolName());
- if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) {
- Name += "$stub";
- MCSymbol *Sym = OutContext.GetOrCreateSymbol(Name);
- const MCSymbol *&StubSym =
- MMI->getObjFileInfo<MachineModuleInfoMachO>().getFnStubEntry(Sym);
- if (StubSym == 0) {
- Name.erase(Name.end()-5, Name.end());
- StubSym = OutContext.GetOrCreateSymbol(Name);
- }
- }
-
- // If the name begins with a dollar-sign, enclose it in parens. We do this
- // to avoid having it look like an integer immediate to the assembler.
- if (Name[0] == '$')
- O << '(' << Name << ')';
- else
- O << Name;
- break;
- }
- }
-
- switch (MO.getTargetFlags()) {
- default:
- llvm_unreachable("Unknown target flag on GV operand");
- case X86II::MO_NO_FLAG: // No flag.
- break;
- case X86II::MO_DARWIN_NONLAZY:
- case X86II::MO_DLLIMPORT:
- case X86II::MO_DARWIN_STUB:
- // These affect the name of the symbol, not any suffix.
- break;
- case X86II::MO_GOT_ABSOLUTE_ADDRESS:
- O << " + [.-";
- PrintPICBaseSymbol();
- O << ']';
- break;
- case X86II::MO_PIC_BASE_OFFSET:
- case X86II::MO_DARWIN_NONLAZY_PIC_BASE:
- case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE:
- O << '-';
- PrintPICBaseSymbol();
- break;
- case X86II::MO_TLSGD: O << "@TLSGD"; break;
- case X86II::MO_GOTTPOFF: O << "@GOTTPOFF"; break;
- case X86II::MO_INDNTPOFF: O << "@INDNTPOFF"; break;
- case X86II::MO_TPOFF: O << "@TPOFF"; break;
- case X86II::MO_NTPOFF: O << "@NTPOFF"; break;
- case X86II::MO_GOTPCREL: O << "@GOTPCREL"; break;
- case X86II::MO_GOT: O << "@GOT"; break;
- case X86II::MO_GOTOFF: O << "@GOTOFF"; break;
- case X86II::MO_PLT: O << "@PLT"; break;
- }
-}
-
-/// print_pcrel_imm - This is used to print an immediate value that ends up
-/// being encoded as a pc-relative value. These print slightly differently, for
-/// example, a $ is not emitted.
-void X86AsmPrinter::print_pcrel_imm(const MachineInstr *MI, unsigned OpNo) {
- const MachineOperand &MO = MI->getOperand(OpNo);
- switch (MO.getType()) {
- default: llvm_unreachable("Unknown pcrel immediate operand");
- case MachineOperand::MO_Immediate:
- O << MO.getImm();
- return;
- case MachineOperand::MO_MachineBasicBlock:
- GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
- return;
- case MachineOperand::MO_GlobalAddress:
- case MachineOperand::MO_ExternalSymbol:
- printSymbolOperand(MO);
- return;
- }
-}
-
-
-void X86AsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
- const char *Modifier) {
- const MachineOperand &MO = MI->getOperand(OpNo);
- switch (MO.getType()) {
- default: llvm_unreachable("unknown operand type!");
- case MachineOperand::MO_Register: {
- O << '%';
- unsigned Reg = MO.getReg();
- if (Modifier && strncmp(Modifier, "subreg", strlen("subreg")) == 0) {
- EVT VT = (strcmp(Modifier+6,"64") == 0) ?
- MVT::i64 : ((strcmp(Modifier+6, "32") == 0) ? MVT::i32 :
- ((strcmp(Modifier+6,"16") == 0) ? MVT::i16 : MVT::i8));
- Reg = getX86SubSuperRegister(Reg, VT);
- }
- O << X86ATTInstPrinter::getRegisterName(Reg);
- return;
- }
-
- case MachineOperand::MO_Immediate:
- O << '$' << MO.getImm();
- return;
-
- case MachineOperand::MO_JumpTableIndex:
- case MachineOperand::MO_ConstantPoolIndex:
- case MachineOperand::MO_GlobalAddress:
- case MachineOperand::MO_ExternalSymbol: {
- O << '$';
- printSymbolOperand(MO);
- break;
- }
- }
-}
-
-void X86AsmPrinter::printSSECC(const MachineInstr *MI, unsigned Op) {
- unsigned char value = MI->getOperand(Op).getImm();
- assert(value <= 7 && "Invalid ssecc argument!");
- switch (value) {
- case 0: O << "eq"; break;
- case 1: O << "lt"; break;
- case 2: O << "le"; break;
- case 3: O << "unord"; break;
- case 4: O << "neq"; break;
- case 5: O << "nlt"; break;
- case 6: O << "nle"; break;
- case 7: O << "ord"; break;
- }
-}
-
-void X86AsmPrinter::printLeaMemReference(const MachineInstr *MI, unsigned Op,
- const char *Modifier) {
- const MachineOperand &BaseReg = MI->getOperand(Op);
- const MachineOperand &IndexReg = MI->getOperand(Op+2);
- const MachineOperand &DispSpec = MI->getOperand(Op+3);
-
- // If we really don't want to print out (rip), don't.
- bool HasBaseReg = BaseReg.getReg() != 0;
- if (HasBaseReg && Modifier && !strcmp(Modifier, "no-rip") &&
- BaseReg.getReg() == X86::RIP)
- HasBaseReg = false;
-
- // HasParenPart - True if we will print out the () part of the mem ref.
- bool HasParenPart = IndexReg.getReg() || HasBaseReg;
-
- if (DispSpec.isImm()) {
- int DispVal = DispSpec.getImm();
- if (DispVal || !HasParenPart)
- O << DispVal;
- } else {
- assert(DispSpec.isGlobal() || DispSpec.isCPI() ||
- DispSpec.isJTI() || DispSpec.isSymbol());
- printSymbolOperand(MI->getOperand(Op+3));
- }
-
- if (HasParenPart) {
- assert(IndexReg.getReg() != X86::ESP &&
- "X86 doesn't allow scaling by ESP");
-
- O << '(';
- if (HasBaseReg)
- printOperand(MI, Op, Modifier);
-
- if (IndexReg.getReg()) {
- O << ',';
- printOperand(MI, Op+2, Modifier);
- unsigned ScaleVal = MI->getOperand(Op+1).getImm();
- if (ScaleVal != 1)
- O << ',' << ScaleVal;
- }
- O << ')';
- }
-}
-
-void X86AsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op,
- const char *Modifier) {
- assert(isMem(MI, Op) && "Invalid memory reference!");
- const MachineOperand &Segment = MI->getOperand(Op+4);
- if (Segment.getReg()) {
- printOperand(MI, Op+4, Modifier);
- O << ':';
- }
- printLeaMemReference(MI, Op, Modifier);
-}
-
-void X86AsmPrinter::printPICJumpTableSetLabel(unsigned uid,
- const MachineBasicBlock *MBB) const {
- if (!MAI->getSetDirective())
- return;
-
- // We don't need .set machinery if we have GOT-style relocations
- if (Subtarget->isPICStyleGOT())
- return;
-
- O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
- << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ',';
-
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
-
- if (Subtarget->isPICStyleRIPRel())
- O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << uid << '\n';
- else {
- O << '-';
- PrintPICBaseSymbol();
- O << '\n';
- }
-}
-
-
-void X86AsmPrinter::printPICLabel(const MachineInstr *MI, unsigned Op) {
- PrintPICBaseSymbol();
- O << '\n';
- PrintPICBaseSymbol();
- O << ':';
-}
-
-void X86AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI,
- const MachineBasicBlock *MBB,
- unsigned uid) const {
- const char *JTEntryDirective = MJTI->getEntrySize() == 4 ?
- MAI->getData32bitsDirective() : MAI->getData64bitsDirective();
-
- O << JTEntryDirective << ' ';
-
- if (Subtarget->isPICStyleRIPRel() || Subtarget->isPICStyleStubPIC()) {
- O << MAI->getPrivateGlobalPrefix() << getFunctionNumber()
- << '_' << uid << "_set_" << MBB->getNumber();
- } else if (Subtarget->isPICStyleGOT()) {
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
- O << "@GOTOFF";
- } else
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
-}
-
-bool X86AsmPrinter::printAsmMRegister(const MachineOperand &MO, char Mode) {
- unsigned Reg = MO.getReg();
- switch (Mode) {
- default: return true; // Unknown mode.
- case 'b': // Print QImode register
- Reg = getX86SubSuperRegister(Reg, MVT::i8);
- break;
- case 'h': // Print QImode high register
- Reg = getX86SubSuperRegister(Reg, MVT::i8, true);
- break;
- case 'w': // Print HImode register
- Reg = getX86SubSuperRegister(Reg, MVT::i16);
- break;
- case 'k': // Print SImode register
- Reg = getX86SubSuperRegister(Reg, MVT::i32);
- break;
- case 'q': // Print DImode register
- Reg = getX86SubSuperRegister(Reg, MVT::i64);
- break;
- }
-
- O << '%' << X86ATTInstPrinter::getRegisterName(Reg);
- return false;
-}
-
-/// PrintAsmOperand - Print out an operand for an inline asm expression.
-///
-bool X86AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant,
- const char *ExtraCode) {
- // Does this asm operand have a single letter operand modifier?
- if (ExtraCode && ExtraCode[0]) {
- if (ExtraCode[1] != 0) return true; // Unknown modifier.
-
- const MachineOperand &MO = MI->getOperand(OpNo);
-
- switch (ExtraCode[0]) {
- default: return true; // Unknown modifier.
- case 'a': // This is an address. Currently only 'i' and 'r' are expected.
- if (MO.isImm()) {
- O << MO.getImm();
- return false;
- }
- if (MO.isGlobal() || MO.isCPI() || MO.isJTI() || MO.isSymbol()) {
- printSymbolOperand(MO);
- return false;
- }
- if (MO.isReg()) {
- O << '(';
- printOperand(MI, OpNo);
- O << ')';
- return false;
- }
- return true;
-
- case 'c': // Don't print "$" before a global var name or constant.
- if (MO.isImm())
- O << MO.getImm();
- else if (MO.isGlobal() || MO.isCPI() || MO.isJTI() || MO.isSymbol())
- printSymbolOperand(MO);
- else
- printOperand(MI, OpNo);
- return false;
-
- case 'A': // Print '*' before a register (it must be a register)
- if (MO.isReg()) {
- O << '*';
- printOperand(MI, OpNo);
- return false;
- }
- return true;
-
- case 'b': // Print QImode register
- case 'h': // Print QImode high register
- case 'w': // Print HImode register
- case 'k': // Print SImode register
- case 'q': // Print DImode register
- if (MO.isReg())
- return printAsmMRegister(MO, ExtraCode[0]);
- printOperand(MI, OpNo);
- return false;
-
- case 'P': // This is the operand of a call, treat specially.
- print_pcrel_imm(MI, OpNo);
- return false;
-
- case 'n': // Negate the immediate or print a '-' before the operand.
- // Note: this is a temporary solution. It should be handled target
- // independently as part of the 'MC' work.
- if (MO.isImm()) {
- O << -MO.getImm();
- return false;
- }
- O << '-';
- }
- }
-
- printOperand(MI, OpNo);
- return false;
-}
-
-bool X86AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
- unsigned OpNo, unsigned AsmVariant,
- const char *ExtraCode) {
- if (ExtraCode && ExtraCode[0]) {
- if (ExtraCode[1] != 0) return true; // Unknown modifier.
-
- switch (ExtraCode[0]) {
- default: return true; // Unknown modifier.
- case 'b': // Print QImode register
- case 'h': // Print QImode high register
- case 'w': // Print HImode register
- case 'k': // Print SImode register
- case 'q': // Print SImode register
- // These only apply to registers, ignore on mem.
- break;
- case 'P': // Don't print @PLT, but do print as memory.
- printMemReference(MI, OpNo, "no-rip");
- return false;
- }
- }
- printMemReference(MI, OpNo);
- return false;
-}
-
-
-
-/// printMachineInstruction -- Print out a single X86 LLVM instruction MI in
-/// AT&T syntax to the current output stream.
-///
-void X86AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
-
- processDebugLoc(MI->getDebugLoc());
-
- printInstructionThroughMCStreamer(MI);
-
- if (VerboseAsm && !MI->getDebugLoc().isUnknown())
- EmitComments(*MI);
- O << '\n';
-}
-
-void X86AsmPrinter::PrintGlobalVariable(const GlobalVariable* GVar) {
- if (!GVar->hasInitializer())
- return; // External global require no code
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(GVar)) {
- if (Subtarget->isTargetDarwin() &&
- TM.getRelocationModel() == Reloc::Static) {
- if (GVar->getName() == "llvm.global_ctors")
- O << ".reference .constructors_used\n";
- else if (GVar->getName() == "llvm.global_dtors")
- O << ".reference .destructors_used\n";
- }
- return;
- }
-
- const TargetData *TD = TM.getTargetData();
-
- std::string name = Mang->getMangledName(GVar);
- Constant *C = GVar->getInitializer();
- const Type *Type = C->getType();
- unsigned Size = TD->getTypeAllocSize(Type);
- unsigned Align = TD->getPreferredAlignmentLog(GVar);
-
- printVisibility(name, GVar->getVisibility());
-
- if (Subtarget->isTargetELF())
- O << "\t.type\t" << name << ",@object\n";
-
-
- SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GVar, TM);
- const MCSection *TheSection =
- getObjFileLowering().SectionForGlobal(GVar, GVKind, Mang, TM);
- OutStreamer.SwitchSection(TheSection);
-
- // FIXME: get this stuff from section kind flags.
- if (C->isNullValue() && !GVar->hasSection() &&
- // Don't put things that should go in the cstring section into "comm".
- !TheSection->getKind().isMergeableCString()) {
- if (GVar->hasExternalLinkage()) {
- if (const char *Directive = MAI->getZeroFillDirective()) {
- O << "\t.globl " << name << '\n';
- O << Directive << "__DATA, __common, " << name << ", "
- << Size << ", " << Align << '\n';
- return;
- }
- }
-
- if (!GVar->isThreadLocal() &&
- (GVar->hasLocalLinkage() || GVar->isWeakForLinker())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (MAI->getLCOMMDirective() != NULL) {
- if (GVar->hasLocalLinkage()) {
- O << MAI->getLCOMMDirective() << name << ',' << Size;
- if (Subtarget->isTargetDarwin())
- O << ',' << Align;
- } else if (Subtarget->isTargetDarwin() && !GVar->hasCommonLinkage()) {
- O << "\t.globl " << name << '\n'
- << MAI->getWeakDefDirective() << name << '\n';
- EmitAlignment(Align, GVar);
- O << name << ":";
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << ' ';
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << '\n';
- EmitGlobalConstant(C);
- return;
- } else {
- O << MAI->getCOMMDirective() << name << ',' << Size;
- if (MAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
- }
- } else {
- if (!Subtarget->isTargetCygMing()) {
- if (GVar->hasLocalLinkage())
- O << "\t.local\t" << name << '\n';
- }
- O << MAI->getCOMMDirective() << name << ',' << Size;
- if (MAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
- }
- if (VerboseAsm) {
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << ' ';
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << '\n';
- return;
- }
- }
-
- switch (GVar->getLinkage()) {
- case GlobalValue::CommonLinkage:
- case GlobalValue::LinkOnceAnyLinkage:
- case GlobalValue::LinkOnceODRLinkage:
- case GlobalValue::WeakAnyLinkage:
- case GlobalValue::WeakODRLinkage:
- case GlobalValue::LinkerPrivateLinkage:
- if (Subtarget->isTargetDarwin()) {
- O << "\t.globl " << name << '\n'
- << MAI->getWeakDefDirective() << name << '\n';
- } else if (Subtarget->isTargetCygMing()) {
- O << "\t.globl\t" << name << "\n"
- "\t.linkonce same_size\n";
- } else {
- O << "\t.weak\t" << name << '\n';
- }
- break;
- case GlobalValue::DLLExportLinkage:
- case GlobalValue::AppendingLinkage:
- // FIXME: appending linkage variables should go into a section of
- // their name or something. For now, just emit them as external.
- case GlobalValue::ExternalLinkage:
- // If external or appending, declare as a global symbol
- O << "\t.globl " << name << '\n';
- // FALL THROUGH
- case GlobalValue::PrivateLinkage:
- case GlobalValue::InternalLinkage:
- break;
- default:
- llvm_unreachable("Unknown linkage type!");
- }
-
- EmitAlignment(Align, GVar);
- O << name << ":";
- if (VerboseAsm){
- O.PadToColumn(MAI->getCommentColumn());
- O << MAI->getCommentString() << ' ';
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << '\n';
-
- EmitGlobalConstant(C);
-
- if (MAI->hasDotTypeDotSizeDirective())
- O << "\t.size\t" << name << ", " << Size << '\n';
-}
-
-void X86AsmPrinter::EmitEndOfAsmFile(Module &M) {
- if (Subtarget->isTargetDarwin()) {
- // All darwin targets use mach-o.
- TargetLoweringObjectFileMachO &TLOFMacho =
- static_cast<TargetLoweringObjectFileMachO &>(getObjFileLowering());
-
- MachineModuleInfoMachO &MMIMacho =
- MMI->getObjFileInfo<MachineModuleInfoMachO>();
-
- // Output stubs for dynamically-linked functions.
- MachineModuleInfoMachO::SymbolListTy Stubs;
-
- Stubs = MMIMacho.GetFnStubList();
- if (!Stubs.empty()) {
- const MCSection *TheSection =
- TLOFMacho.getMachOSection("__IMPORT", "__jump_table",
- MCSectionMachO::S_SYMBOL_STUBS |
- MCSectionMachO::S_ATTR_SELF_MODIFYING_CODE |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- 5, SectionKind::getMetadata());
- OutStreamer.SwitchSection(TheSection);
-
- for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- Stubs[i].first->print(O, MAI);
- O << ":\n" << "\t.indirect_symbol ";
- // Get the MCSymbol without the $stub suffix.
- Stubs[i].second->print(O, MAI);
- O << "\n\thlt ; hlt ; hlt ; hlt ; hlt\n";
- }
- O << '\n';
-
- Stubs.clear();
- }
-
- // Output stubs for external and common global variables.
- Stubs = MMIMacho.GetGVStubList();
- if (!Stubs.empty()) {
- const MCSection *TheSection =
- TLOFMacho.getMachOSection("__IMPORT", "__pointers",
- MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS,
- SectionKind::getMetadata());
- OutStreamer.SwitchSection(TheSection);
-
- for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- Stubs[i].first->print(O, MAI);
- O << ":\n\t.indirect_symbol ";
- Stubs[i].second->print(O, MAI);
- O << "\n\t.long\t0\n";
- }
- Stubs.clear();
- }
-
- Stubs = MMIMacho.GetHiddenGVStubList();
- if (!Stubs.empty()) {
- OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
- EmitAlignment(2);
-
- for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- Stubs[i].first->print(O, MAI);
- O << ":\n" << MAI->getData32bitsDirective();
- Stubs[i].second->print(O, MAI);
- O << '\n';
- }
- Stubs.clear();
- }
-
- // Funny Darwin hack: This flag tells the linker that no global symbols
- // contain code that falls through to other global symbols (e.g. the obvious
- // implementation of multiple entry points). If this doesn't occur, the
- // linker can safely perform dead code stripping. Since LLVM never
- // generates code that does this, it is always safe to set.
- O << "\t.subsections_via_symbols\n";
- }
-
- if (Subtarget->isTargetCOFF()) {
- // Necessary for dllexport support
- std::vector<std::string> DLLExportedFns, DLLExportedGlobals;
-
- X86COFFMachineModuleInfo &COFFMMI =
- MMI->getObjFileInfo<X86COFFMachineModuleInfo>();
- TargetLoweringObjectFileCOFF &TLOFCOFF =
- static_cast<TargetLoweringObjectFileCOFF&>(getObjFileLowering());
-
- for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I)
- if (I->hasDLLExportLinkage())
- DLLExportedFns.push_back(Mang->getMangledName(I));
-
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I)
- if (I->hasDLLExportLinkage())
- DLLExportedGlobals.push_back(Mang->getMangledName(I));
-
- if (Subtarget->isTargetCygMing()) {
- // Emit type information for external functions
- for (X86COFFMachineModuleInfo::stub_iterator I = COFFMMI.stub_begin(),
- E = COFFMMI.stub_end(); I != E; ++I) {
- O << "\t.def\t " << I->getKeyData()
- << ";\t.scl\t" << COFF::C_EXT
- << ";\t.type\t" << (COFF::DT_FCN << COFF::N_BTSHFT)
- << ";\t.endef\n";
- }
- }
-
- // Output linker support code for dllexported globals on windows.
- if (!DLLExportedGlobals.empty() || !DLLExportedFns.empty()) {
- OutStreamer.SwitchSection(TLOFCOFF.getCOFFSection(".section .drectve",
-