//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "mips-asm-printer"
-#include "MipsAsmPrinter.h"
-#include "Mips.h"
-#include "MipsInstrInfo.h"
#include "InstPrinter/MipsInstPrinter.h"
#include "MCTargetDesc/MipsBaseInfo.h"
+#include "MCTargetDesc/MipsELFStreamer.h"
+#include "Mips.h"
+#include "MipsAsmPrinter.h"
+#include "MipsInstrInfo.h"
+#include "MipsMCInstLower.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
-#include "llvm/Analysis/DebugInfo.h"
-#include "llvm/BasicBlock.h"
-#include "llvm/Instructions.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineMemOperand.h"
-#include "llvm/Instructions.h"
-#include "llvm/MC/MCStreamer.h"
+#include "llvm/IR/BasicBlock.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/InlineAsm.h"
+#include "llvm/IR/Instructions.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/ELF.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/Mangler.h"
-#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetOptions.h"
using namespace llvm;
bool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
+ // Initialize TargetLoweringObjectFile.
+ if (Subtarget->allowMixed16_32())
+ const_cast<TargetLoweringObjectFile&>(getObjFileLowering())
+ .Initialize(OutContext, TM);
MipsFI = MF.getInfo<MipsFunctionInfo>();
AsmPrinter::runOnMachineFunction(MF);
return true;
}
+bool MipsAsmPrinter::lowerOperand(const MachineOperand &MO, MCOperand &MCOp) {
+ MCOp = MCInstLowering.LowerOperand(MO);
+ return MCOp.isValid();
+}
+
+#include "MipsGenMCPseudoLowering.inc"
+
void MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) {
if (MI->isDebugValue()) {
SmallString<128> Str;
MachineBasicBlock::const_instr_iterator E = MI->getParent()->instr_end();
do {
+ // Do any auto-generated pseudo lowerings.
+ if (emitPseudoExpansionLowering(OutStreamer, &*I))
+ continue;
+
+ // The inMips16Mode() test is not permanent.
+ // Some instructions are marked as pseudo right now which
+ // would make the test fail for the wrong reason but
+ // that will be fixed soon. We need this here because we are
+ // removing another test for this situation downstream in the
+ // callchain.
+ //
+ if (I->isPseudo() && !Subtarget->inMips16Mode())
+ llvm_unreachable("Pseudo opcode found in EmitInstruction()");
+
MCInst TmpInst0;
- MCInstLowering.Lower(I++, TmpInst0);
+ MCInstLowering.Lower(I, TmpInst0);
OutStreamer.EmitInstruction(TmpInst0);
- } while ((I != E) && I->isInsideBundle());
+ } while ((++I != E) && I->isInsideBundle()); // Delay slot check
}
//===----------------------------------------------------------------------===//
if (Mips::CPURegsRegClass.contains(Reg))
break;
- unsigned RegNum = getMipsRegisterNumbering(Reg);
+ unsigned RegNum = TM.getRegisterInfo()->getEncodingValue(Reg);
if (Mips::AFGR64RegClass.contains(Reg)) {
FPUBitmask |= (3 << RegNum);
CSFPRegsSize += AFGR64RegSize;
// Set CPU Bitmask.
for (; i != e; ++i) {
unsigned Reg = CSI[i].getReg();
- unsigned RegNum = getMipsRegisterNumbering(Reg);
+ unsigned RegNum = TM.getRegisterInfo()->getEncodingValue(Reg);
CPUBitmask |= (1 << RegNum);
}
case MipsSubtarget::N32: return "abiN32";
case MipsSubtarget::N64: return "abi64";
case MipsSubtarget::EABI: return "eabi32"; // TODO: handle eabi64
- default: llvm_unreachable("Unknown Mips ABI");;
+ default: llvm_unreachable("Unknown Mips ABI");
}
}
// OutStreamer.EmitRawText(StringRef("\t.set\tnomicromips"));
OutStreamer.EmitRawText("\t.ent\t" + Twine(CurrentFnSym->getName()));
}
+
+ if (Subtarget->inMicroMipsMode())
+ if (MipsELFStreamer *MES = dyn_cast<MipsELFStreamer>(&OutStreamer))
+ MES->emitMipsSTOCG(*Subtarget, CurrentFnSym,
+ (unsigned)ELF::STO_MIPS_MICROMIPS);
OutStreamer.EmitLabel(CurrentFnSym);
}
void MipsAsmPrinter::EmitFunctionBodyStart() {
MCInstLowering.Initialize(Mang, &MF->getContext());
- emitFrameDirective();
+ bool IsNakedFunction =
+ MF->getFunction()->
+ getAttributes().hasAttribute(AttributeSet::FunctionIndex,
+ Attribute::Naked);
+ if (!IsNakedFunction)
+ emitFrameDirective();
if (OutStreamer.hasRawTextSupport()) {
SmallString<128> Str;
raw_svector_ostream OS(Str);
- printSavedRegsBitmask(OS);
+ if (!IsNakedFunction)
+ printSavedRegsBitmask(OS);
OutStreamer.EmitRawText(OS.str());
-
- OutStreamer.EmitRawText(StringRef("\t.set\tnoreorder"));
- OutStreamer.EmitRawText(StringRef("\t.set\tnomacro"));
- if (MipsFI->getEmitNOAT())
+ if (!Subtarget->inMips16Mode()) {
+ OutStreamer.EmitRawText(StringRef("\t.set\tnoreorder"));
+ OutStreamer.EmitRawText(StringRef("\t.set\tnomacro"));
OutStreamer.EmitRawText(StringRef("\t.set\tnoat"));
+ }
}
}
// always be at the function end, and we can't emit and
// break with BB logic.
if (OutStreamer.hasRawTextSupport()) {
- if (MipsFI->getEmitNOAT())
+ if (!Subtarget->inMips16Mode()) {
OutStreamer.EmitRawText(StringRef("\t.set\tat"));
-
- OutStreamer.EmitRawText(StringRef("\t.set\tmacro"));
- OutStreamer.EmitRawText(StringRef("\t.set\treorder"));
+ OutStreamer.EmitRawText(StringRef("\t.set\tmacro"));
+ OutStreamer.EmitRawText(StringRef("\t.set\treorder"));
+ }
OutStreamer.EmitRawText("\t.end\t" + Twine(CurrentFnSym->getName()));
}
}
return true;
O << MO.getImm() - 1;
return false;
+ case 'z': {
+ // $0 if zero, regular printing otherwise
+ if (MO.getType() != MachineOperand::MO_Immediate)
+ return true;
+ int64_t Val = MO.getImm();
+ if (Val)
+ O << Val;
+ else
+ O << "$0";
+ return false;
+ }
+ case 'D': // Second part of a double word register operand
+ case 'L': // Low order register of a double word register operand
+ case 'M': // High order register of a double word register operand
+ {
+ if (OpNum == 0)
+ return true;
+ const MachineOperand &FlagsOP = MI->getOperand(OpNum - 1);
+ if (!FlagsOP.isImm())
+ return true;
+ unsigned Flags = FlagsOP.getImm();
+ unsigned NumVals = InlineAsm::getNumOperandRegisters(Flags);
+ // Number of registers represented by this operand. We are looking
+ // for 2 for 32 bit mode and 1 for 64 bit mode.
+ if (NumVals != 2) {
+ if (Subtarget->isGP64bit() && NumVals == 1 && MO.isReg()) {
+ unsigned Reg = MO.getReg();
+ O << '$' << MipsInstPrinter::getRegisterName(Reg);
+ return false;
+ }
+ return true;
+ }
+
+ unsigned RegOp = OpNum;
+ if (!Subtarget->isGP64bit()){
+ // Endianess reverses which register holds the high or low value
+ // between M and L.
+ switch(ExtraCode[0]) {
+ case 'M':
+ RegOp = (Subtarget->isLittle()) ? OpNum + 1 : OpNum;
+ break;
+ case 'L':
+ RegOp = (Subtarget->isLittle()) ? OpNum : OpNum + 1;
+ break;
+ case 'D': // Always the second part
+ RegOp = OpNum + 1;
+ }
+ if (RegOp >= MI->getNumOperands())
+ return true;
+ const MachineOperand &MO = MI->getOperand(RegOp);
+ if (!MO.isReg())
+ return true;
+ unsigned Reg = MO.getReg();
+ O << '$' << MipsInstPrinter::getRegisterName(Reg);
+ return false;
+ }
+ }
}
}
unsigned OpNum, unsigned AsmVariant,
const char *ExtraCode,
raw_ostream &O) {
- if (ExtraCode && ExtraCode[0])
- return true; // Unknown modifier.
+ int Offset = 0;
+ // Currently we are expecting either no ExtraCode or 'D'
+ if (ExtraCode) {
+ if (ExtraCode[0] == 'D')
+ Offset = 4;
+ else
+ return true; // Unknown modifier.
+ }
const MachineOperand &MO = MI->getOperand(OpNum);
assert(MO.isReg() && "unexpected inline asm memory operand");
- O << "0($" << MipsInstPrinter::getRegisterName(MO.getReg()) << ")";
+ O << Offset << "($" << MipsInstPrinter::getRegisterName(MO.getReg()) << ")";
+
return false;
}
// return to previous section
if (OutStreamer.hasRawTextSupport())
OutStreamer.EmitRawText(StringRef("\t.previous"));
+
+}
+
+void MipsAsmPrinter::EmitEndOfAsmFile(Module &M) {
+
+ if (OutStreamer.hasRawTextSupport()) return;
+
+ // Emit Mips ELF register info
+ Subtarget->getMReginfo().emitMipsReginfoSectionCG(
+ OutStreamer, getObjFileLowering(), *Subtarget);
+ if (MipsELFStreamer *MES = dyn_cast<MipsELFStreamer>(&OutStreamer))
+ MES->emitELFHeaderFlagsCG(*Subtarget);
}
MachineLocation
projects / oota-llvm.git / blobdiff