#include "X86ATTAsmPrinter.h"
#include "X86.h"
+#include "X86MachineFunctionInfo.h"
#include "X86TargetMachine.h"
+#include "X86TargetAsmInfo.h"
+#include "llvm/CallingConv.h"
#include "llvm/Module.h"
#include "llvm/Support/Mangler.h"
+#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetOptions.h"
#include <iostream>
using namespace llvm;
+/// getSectionForFunction - Return the section that we should emit the
+/// specified function body into.
+std::string X86ATTAsmPrinter::getSectionForFunction(const Function &F) const {
+ switch (F.getLinkage()) {
+ default: assert(0 && "Unknown linkage type!");
+ case Function::InternalLinkage:
+ case Function::DLLExportLinkage:
+ case Function::ExternalLinkage:
+ return TAI->getTextSection();
+ case Function::WeakLinkage:
+ case Function::LinkOnceLinkage:
+ if (Subtarget->isTargetDarwin()) {
+ return ".section __TEXT,__textcoal_nt,coalesced,pure_instructions";
+ } else if (Subtarget->isTargetCygwin()) {
+ return "\t.section\t.text$linkonce." + CurrentFnName + ",\"ax\"\n";
+ } else {
+ return "\t.section\t.llvm.linkonce.t." + CurrentFnName +
+ ",\"ax\",@progbits\n";
+ }
+ }
+}
+
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
///
bool X86ATTAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- // if (forDarwin) {
+ if (Subtarget->isTargetDarwin() ||
+ Subtarget->isTargetELF() ||
+ Subtarget->isTargetCygwin()) {
// Let PassManager know we need debug information and relay
// the MachineDebugInfo address on to DwarfWriter.
DW.SetDebugInfo(&getAnalysis<MachineDebugInfo>());
- // }
+ }
SetupMachineFunction(MF);
O << "\n\n";
// Print out constants referenced by the function
EmitConstantPool(MF.getConstantPool());
- // Print out jump tables referenced by the function
- EmitJumpTableInfo(MF.getJumpTableInfo());
-
// Print out labels for the function.
const Function *F = MF.getFunction();
+ unsigned CC = F->getCallingConv();
+
+ // Populate function information map. Actually, We don't want to populate
+ // non-stdcall or non-fastcall functions' information right now.
+ if (CC == CallingConv::X86_StdCall || CC == CallingConv::X86_FastCall)
+ FunctionInfoMap[F] = *MF.getInfo<X86FunctionInfo>();
+
+ X86SharedAsmPrinter::decorateName(CurrentFnName, F);
+
+ SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
+
switch (F->getLinkage()) {
default: assert(0 && "Unknown linkage type!");
case Function::InternalLinkage: // Symbols default to internal.
- SwitchSection(".text", F);
EmitAlignment(4, F); // FIXME: This should be parameterized somewhere.
break;
+ case Function::DLLExportLinkage:
+ DLLExportedFns.insert(Mang->makeNameProper(F->getName(), ""));
+ //FALLS THROUGH
case Function::ExternalLinkage:
- SwitchSection(".text", F);
EmitAlignment(4, F); // FIXME: This should be parameterized somewhere.
- O << "\t.globl\t" << CurrentFnName << "\n";
+ O << "\t.globl\t" << CurrentFnName << "\n";
break;
- case Function::WeakLinkage:
case Function::LinkOnceLinkage:
- if (forDarwin) {
- SwitchSection(".section __TEXT,__textcoal_nt,coalesced,pure_instructions",
- F);
+ case Function::WeakLinkage:
+ if (Subtarget->isTargetDarwin()) {
O << "\t.globl\t" << CurrentFnName << "\n";
O << "\t.weak_definition\t" << CurrentFnName << "\n";
+ } else if (Subtarget->isTargetCygwin()) {
+ EmitAlignment(4, F); // FIXME: This should be parameterized somewhere.
+ O << "\t.linkonce discard\n";
+ O << "\t.globl " << CurrentFnName << "\n";
} else {
EmitAlignment(4, F); // FIXME: This should be parameterized somewhere.
- O << "\t.section\t.llvm.linkonce.t." << CurrentFnName
- << ",\"ax\",@progbits\n";
O << "\t.weak " << CurrentFnName << "\n";
}
break;
}
O << CurrentFnName << ":\n";
+ // Add some workaround for linkonce linkage on Cygwin\MinGW
+ if (Subtarget->isTargetCygwin() &&
+ (F->getLinkage() == Function::LinkOnceLinkage ||
+ F->getLinkage() == Function::WeakLinkage))
+ O << "_llvm$workaround$fake$stub_" << CurrentFnName << ":\n";
- if (forDarwin) {
+ if (Subtarget->isTargetDarwin() ||
+ Subtarget->isTargetELF() ||
+ Subtarget->isTargetCygwin()) {
// Emit pre-function debug information.
DW.BeginFunction(&MF);
}
printMachineInstruction(II);
}
}
- if (HasDotTypeDotSizeDirective)
+
+ // Print out jump tables referenced by the function.
+
+ // Mac OS X requires that the jump table follow the function, so that the jump
+ // table is part of the same atom that the function is in.
+ EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
+
+ if (TAI->hasDotTypeDotSizeDirective())
O << "\t.size " << CurrentFnName << ", .-" << CurrentFnName << "\n";
- if (forDarwin) {
+ if (Subtarget->isTargetDarwin() ||
+ Subtarget->isTargetELF() ||
+ Subtarget->isTargetCygwin()) {
// Emit post-function debug information.
DW.EndFunction();
}
"Virtual registers should not make it this far!");
O << '%';
unsigned Reg = MO.getReg();
- if (Modifier && strncmp(Modifier, "trunc", strlen("trunc")) == 0) {
- MVT::ValueType VT = (strcmp(Modifier,"trunc16") == 0)
- ? MVT::i16 : MVT::i8;
+ if (Modifier && strncmp(Modifier, "subreg", strlen("subreg")) == 0) {
+ MVT::ValueType 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);
}
for (const char *Name = RI.get(Reg).Name; *Name; ++Name)
case MachineOperand::MO_Immediate:
if (!Modifier || strcmp(Modifier, "debug") != 0)
O << '$';
- O << (int)MO.getImmedValue();
+ O << MO.getImmedValue();
return;
case MachineOperand::MO_MachineBasicBlock:
printBasicBlockLabel(MO.getMachineBasicBlock());
case MachineOperand::MO_JumpTableIndex: {
bool isMemOp = Modifier && !strcmp(Modifier, "mem");
if (!isMemOp) O << '$';
- O << PrivateGlobalPrefix << "JTI" << getFunctionNumber() << "_"
+ O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << "_"
<< MO.getJumpTableIndex();
- // FIXME: PIC relocation model
+ if (X86PICStyle == PICStyle::Stub &&
+ TM.getRelocationModel() == Reloc::PIC_)
+ O << "-\"L" << getFunctionNumber() << "$pb\"";
+ if (Subtarget->is64Bit())
+ O << "(%rip)";
return;
}
case MachineOperand::MO_ConstantPoolIndex: {
bool isMemOp = Modifier && !strcmp(Modifier, "mem");
if (!isMemOp) O << '$';
- O << PrivateGlobalPrefix << "CPI" << getFunctionNumber() << "_"
+ O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << "_"
<< MO.getConstantPoolIndex();
- if (forDarwin && TM.getRelocationModel() == Reloc::PIC)
+ if (X86PICStyle == PICStyle::Stub &&
+ TM.getRelocationModel() == Reloc::PIC_)
O << "-\"L" << getFunctionNumber() << "$pb\"";
int Offset = MO.getOffset();
if (Offset > 0)
O << "+" << Offset;
else if (Offset < 0)
O << Offset;
+
+ if (Subtarget->is64Bit())
+ O << "(%rip)";
return;
}
case MachineOperand::MO_GlobalAddress: {
bool isCallOp = Modifier && !strcmp(Modifier, "call");
bool isMemOp = Modifier && !strcmp(Modifier, "mem");
if (!isMemOp && !isCallOp) O << '$';
- // Darwin block shameless ripped from PPCAsmPrinter.cpp
- if (forDarwin && TM.getRelocationModel() != Reloc::Static) {
- GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getValueName(GV);
+
+ GlobalValue *GV = MO.getGlobal();
+ std::string Name = Mang->getValueName(GV);
+
+ bool isExt = (GV->isExternal() || GV->hasWeakLinkage() ||
+ GV->hasLinkOnceLinkage());
+
+ X86SharedAsmPrinter::decorateName(Name, GV);
+
+ if (X86PICStyle == PICStyle::Stub &&
+ TM.getRelocationModel() != Reloc::Static) {
// Link-once, External, or Weakly-linked global variables need
// non-lazily-resolved stubs
- if (GV->isExternal() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage()) {
+ if (isExt) {
// Dynamically-resolved functions need a stub for the function.
- if (isCallOp && isa<Function>(GV) && cast<Function>(GV)->isExternal()) {
+ if (isCallOp && isa<Function>(GV)) {
FnStubs.insert(Name);
O << "L" << Name << "$stub";
} else {
O << "L" << Name << "$non_lazy_ptr";
}
} else {
- O << Mang->getValueName(GV);
- }
- if (!isCallOp && TM.getRelocationModel() == Reloc::PIC)
+ if (GV->hasDLLImportLinkage()) {
+ O << "__imp_";
+ }
+ O << Name;
+ }
+
+ if (!isCallOp && TM.getRelocationModel() == Reloc::PIC_)
O << "-\"L" << getFunctionNumber() << "$pb\"";
- } else
- O << Mang->getValueName(MO.getGlobal());
+ } else {
+ if (GV->hasDLLImportLinkage()) {
+ O << "__imp_";
+ }
+ O << Name;
+ }
+
int Offset = MO.getOffset();
if (Offset > 0)
O << "+" << Offset;
else if (Offset < 0)
O << Offset;
+
+ if (!isCallOp &&
+ Subtarget->is64Bit()) {
+ if (isExt && TM.getRelocationModel() != Reloc::Static)
+ O << "@GOTPCREL";
+ O << "(%rip)";
+ }
+
return;
}
case MachineOperand::MO_ExternalSymbol: {
bool isCallOp = Modifier && !strcmp(Modifier, "call");
- if (isCallOp && forDarwin && TM.getRelocationModel() != Reloc::Static) {
- std::string Name(GlobalPrefix);
+ if (isCallOp &&
+ X86PICStyle == PICStyle::Stub &&
+ TM.getRelocationModel() != Reloc::Static) {
+ std::string Name(TAI->getGlobalPrefix());
Name += MO.getSymbolName();
FnStubs.insert(Name);
O << "L" << Name << "$stub";
return;
}
if (!isCallOp) O << '$';
- O << GlobalPrefix << MO.getSymbolName();
+ O << TAI->getGlobalPrefix() << MO.getSymbolName();
+
+ if (!isCallOp &&
+ Subtarget->is64Bit())
+ O << "(%rip)";
+
return;
}
default:
}
}
-void X86ATTAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op){
+void X86ATTAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op,
+ const char *Modifier){
assert(isMem(MI, Op) && "Invalid memory reference!");
const MachineOperand &BaseReg = MI->getOperand(Op);
return;
}
- if (DispSpec.isGlobalAddress() || DispSpec.isConstantPoolIndex()) {
+ if (DispSpec.isGlobalAddress() ||
+ DispSpec.isConstantPoolIndex() ||
+ DispSpec.isJumpTableIndex()) {
printOperand(MI, Op+3, "mem");
} else {
int DispVal = DispSpec.getImmedValue();
if (IndexReg.getReg() || BaseReg.getReg()) {
O << "(";
- if (BaseReg.getReg())
- printOperand(MI, Op);
+ if (BaseReg.getReg()) {
+ printOperand(MI, Op, Modifier);
+ }
if (IndexReg.getReg()) {
O << ",";
- printOperand(MI, Op+2);
+ printOperand(MI, Op+2, Modifier);
if (ScaleVal != 1)
O << "," << ScaleVal;
}
///
void X86ATTAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
++EmittedInsts;
- // This works around some Darwin assembler bugs.
- if (forDarwin) {
- switch (MI->getOpcode()) {
- case X86::REP_MOVSB:
- O << "rep/movsb (%esi),(%edi)\n";
- return;
- case X86::REP_MOVSD:
- O << "rep/movsl (%esi),(%edi)\n";
- return;
- case X86::REP_MOVSW:
- O << "rep/movsw (%esi),(%edi)\n";
- return;
- case X86::REP_STOSB:
- O << "rep/stosb\n";
- return;
- case X86::REP_STOSD:
- O << "rep/stosl\n";
- return;
- case X86::REP_STOSW:
- O << "rep/stosw\n";
- return;
- default:
- break;
- }
- }
// See if a truncate instruction can be turned into a nop.
switch (MI->getOpcode()) {
default: break;
- case X86::TRUNC_R32_R16:
- case X86::TRUNC_R32_R8:
- case X86::TRUNC_R16_R8: {
+ case X86::TRUNC_64to32:
+ case X86::TRUNC_64to16:
+ case X86::TRUNC_32to16:
+ case X86::TRUNC_32to8:
+ case X86::TRUNC_16to8:
+ case X86::TRUNC_32_to8:
+ case X86::TRUNC_16_to8: {
const MachineOperand &MO0 = MI->getOperand(0);
const MachineOperand &MO1 = MI->getOperand(1);
unsigned Reg0 = MO0.getReg();
unsigned Reg1 = MO1.getReg();
- if (MI->getOpcode() == X86::TRUNC_R32_R16)
+ unsigned Opc = MI->getOpcode();
+ if (Opc == X86::TRUNC_64to32)
+ Reg1 = getX86SubSuperRegister(Reg1, MVT::i32);
+ else if (Opc == X86::TRUNC_32to16 || Opc == X86::TRUNC_64to16)
Reg1 = getX86SubSuperRegister(Reg1, MVT::i16);
else
Reg1 = getX86SubSuperRegister(Reg1, MVT::i8);
- O << CommentString << " TRUNCATE ";
+ O << TAI->getCommentString() << " TRUNCATE ";
if (Reg0 != Reg1)
O << "\n\t";
break;
}
+ case X86::PsMOVZX64rr32:
+ O << TAI->getCommentString() << " ZERO-EXTEND " << "\n\t";
+ break;
}
// Call the autogenerated instruction printer routines.
projects / oota-llvm.git / blobdiff