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-rw-r--r--lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp236
1 files changed, 85 insertions, 151 deletions
diff --git a/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp b/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
index cb40479..ccf9ee5 100644
--- a/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
+++ b/lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
@@ -22,24 +22,28 @@
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
-#include "llvm/MDNode.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Mangler.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/raw_ostream.h"
#include <cctype>
using namespace llvm;
@@ -50,8 +54,8 @@ namespace {
class VISIBILITY_HIDDEN MipsAsmPrinter : public AsmPrinter {
const MipsSubtarget *Subtarget;
public:
- explicit MipsAsmPrinter(raw_ostream &O, MipsTargetMachine &TM,
- const TargetAsmInfo *T, bool V)
+ explicit MipsAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
+ const MCAsmInfo *T, bool V)
: AsmPrinter(O, TM, T, V) {
Subtarget = &TM.getSubtarget<MipsSubtarget>();
}
@@ -68,34 +72,25 @@ namespace {
const char *Modifier = 0);
void printFCCOperand(const MachineInstr *MI, int opNum,
const char *Modifier = 0);
- void printModuleLevelGV(const GlobalVariable* GVar);
+ void PrintGlobalVariable(const GlobalVariable *GVar);
void printSavedRegsBitmask(MachineFunction &MF);
void printHex32(unsigned int Value);
- const char *emitCurrentABIString(void);
+ const char *emitCurrentABIString();
void emitFunctionStart(MachineFunction &MF);
void emitFunctionEnd(MachineFunction &MF);
void emitFrameDirective(MachineFunction &MF);
- bool printInstruction(const MachineInstr *MI); // autogenerated.
+ void printInstruction(const MachineInstr *MI); // autogenerated.
+ static const char *getRegisterName(unsigned RegNo);
+
bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
+ void EmitStartOfAsmFile(Module &M);
};
} // end of anonymous namespace
#include "MipsGenAsmWriter.inc"
-/// createMipsCodePrinterPass - Returns a pass that prints the MIPS
-/// assembly code for a MachineFunction to the given output stream,
-/// using the given target machine description. This should work
-/// regardless of whether the function is in SSA form.
-FunctionPass *llvm::createMipsCodePrinterPass(raw_ostream &o,
- MipsTargetMachine &tm,
- bool verbose) {
- return new MipsAsmPrinter(o, tm, tm.getTargetAsmInfo(), verbose);
-}
-
//===----------------------------------------------------------------------===//
//
// Mips Asm Directives
@@ -186,9 +181,7 @@ printHex32(unsigned int Value)
//===----------------------------------------------------------------------===//
/// Frame Directive
-void MipsAsmPrinter::
-emitFrameDirective(MachineFunction &MF)
-{
+void MipsAsmPrinter::emitFrameDirective(MachineFunction &MF) {
const TargetRegisterInfo &RI = *TM.getRegisterInfo();
unsigned stackReg = RI.getFrameRegister(MF);
@@ -196,16 +189,14 @@ emitFrameDirective(MachineFunction &MF)
unsigned stackSize = MF.getFrameInfo()->getStackSize();
- O << "\t.frame\t" << '$' << LowercaseString(RI.get(stackReg).AsmName)
+ O << "\t.frame\t" << '$' << LowercaseString(getRegisterName(stackReg))
<< ',' << stackSize << ','
- << '$' << LowercaseString(RI.get(returnReg).AsmName)
+ << '$' << LowercaseString(getRegisterName(returnReg))
<< '\n';
}
/// Emit Set directives.
-const char * MipsAsmPrinter::
-emitCurrentABIString(void)
-{
+const char *MipsAsmPrinter::emitCurrentABIString() {
switch(Subtarget->getTargetABI()) {
case MipsSubtarget::O32: return "abi32";
case MipsSubtarget::O64: return "abiO64";
@@ -215,17 +206,15 @@ emitCurrentABIString(void)
default: break;
}
- assert(0 && "Unknown Mips ABI");
+ llvm_unreachable("Unknown Mips ABI");
return NULL;
}
/// Emit the directives used by GAS on the start of functions
-void MipsAsmPrinter::
-emitFunctionStart(MachineFunction &MF)
-{
+void MipsAsmPrinter::emitFunctionStart(MachineFunction &MF) {
// Print out the label for the function.
const Function *F = MF.getFunction();
- SwitchToSection(TAI->SectionForGlobal(F));
+ OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
// 2 bits aligned
EmitAlignment(MF.getAlignment(), F);
@@ -235,7 +224,7 @@ emitFunctionStart(MachineFunction &MF)
printVisibility(CurrentFnName, F->getVisibility());
- if ((TAI->hasDotTypeDotSizeDirective()) && Subtarget->isLinux())
+ if ((MAI->hasDotTypeDotSizeDirective()) && Subtarget->isLinux())
O << "\t.type\t" << CurrentFnName << ", @function\n";
O << CurrentFnName << ":\n";
@@ -247,9 +236,7 @@ emitFunctionStart(MachineFunction &MF)
}
/// Emit the directives used by GAS on the end of functions
-void MipsAsmPrinter::
-emitFunctionEnd(MachineFunction &MF)
-{
+void MipsAsmPrinter::emitFunctionEnd(MachineFunction &MF) {
// There are instruction for this macros, but they must
// always be at the function end, and we can't emit and
// break with BB logic.
@@ -257,15 +244,13 @@ emitFunctionEnd(MachineFunction &MF)
O << "\t.set\treorder\n";
O << "\t.end\t" << CurrentFnName << '\n';
- if (TAI->hasDotTypeDotSizeDirective() && !Subtarget->isLinux())
+ if (MAI->hasDotTypeDotSizeDirective() && !Subtarget->isLinux())
O << "\t.size\t" << CurrentFnName << ", .-" << CurrentFnName << '\n';
}
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
-bool MipsAsmPrinter::
-runOnMachineFunction(MachineFunction &MF)
-{
+bool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
this->MF = &MF;
SetupMachineFunction(MF);
@@ -287,14 +272,21 @@ runOnMachineFunction(MachineFunction &MF)
// Print a label for the basic block.
if (I != MF.begin()) {
- printBasicBlockLabel(I, true, true);
- O << '\n';
+ EmitBasicBlockStart(I);
}
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
+ processDebugLoc(II, true);
+
// Print the assembly for the instruction.
printInstruction(II);
+
+ if (VerboseAsm && !II->getDebugLoc().isUnknown())
+ EmitComments(*II);
+ O << '\n';
+
+ processDebugLoc(II, false);
++EmittedInsts;
}
@@ -310,10 +302,8 @@ runOnMachineFunction(MachineFunction &MF)
}
// Print out an operand for an inline asm expression.
-bool MipsAsmPrinter::
-PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant, const char *ExtraCode)
-{
+bool MipsAsmPrinter::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])
return true; // Unknown modifier.
@@ -322,57 +312,33 @@ PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
return false;
}
-void MipsAsmPrinter::
-printOperand(const MachineInstr *MI, int opNum)
-{
+void MipsAsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand(opNum);
- const TargetRegisterInfo &RI = *TM.getRegisterInfo();
bool closeP = false;
- bool isPIC = (TM.getRelocationModel() == Reloc::PIC_);
- bool isCodeLarge = (TM.getCodeModel() == CodeModel::Large);
-
- // %hi and %lo used on mips gas to load global addresses on
- // static code. %got is used to load global addresses when
- // using PIC_. %call16 is used to load direct call targets
- // on PIC_ and small code size. %call_lo and %call_hi load
- // direct call targets on PIC_ and large code size.
- if (MI->getOpcode() == Mips::LUi && !MO.isReg() && !MO.isImm()) {
- if ((isPIC) && (isCodeLarge))
- O << "%call_hi(";
- else
- O << "%hi(";
+
+ if (MO.getTargetFlags())
closeP = true;
- } else if ((MI->getOpcode() == Mips::ADDiu) && !MO.isReg() && !MO.isImm()) {
- const MachineOperand &firstMO = MI->getOperand(opNum-1);
- if (firstMO.getReg() == Mips::GP)
- O << "%gp_rel(";
+
+ switch(MO.getTargetFlags()) {
+ case MipsII::MO_GPREL: O << "%gp_rel("; break;
+ case MipsII::MO_GOT_CALL: O << "%call16("; break;
+ case MipsII::MO_GOT:
+ if (MI->getOpcode() == Mips::LW)
+ O << "%got(";
else
O << "%lo(";
- closeP = true;
- } else if ((isPIC) && (MI->getOpcode() == Mips::LW) &&
- (!MO.isReg()) && (!MO.isImm())) {
- const MachineOperand &firstMO = MI->getOperand(opNum-1);
- const MachineOperand &lastMO = MI->getOperand(opNum+1);
- if ((firstMO.isReg()) && (lastMO.isReg())) {
- if ((firstMO.getReg() == Mips::T9) && (lastMO.getReg() == Mips::GP)
- && (!isCodeLarge))
- O << "%call16(";
- else if ((firstMO.getReg() != Mips::T9) && (lastMO.getReg() == Mips::GP))
- O << "%got(";
- else if ((firstMO.getReg() == Mips::T9) && (lastMO.getReg() != Mips::GP)
- && (isCodeLarge))
- O << "%call_lo(";
- closeP = true;
- }
+ break;
+ case MipsII::MO_ABS_HILO:
+ if (MI->getOpcode() == Mips::LUi)
+ O << "%hi(";
+ else
+ O << "%lo(";
+ break;
}
-
- switch (MO.getType())
- {
+
+ switch (MO.getType()) {
case MachineOperand::MO_Register:
- if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
- O << '$' << LowercaseString (RI.get(MO.getReg()).AsmName);
- else
- O << '$' << MO.getReg();
+ O << '$' << LowercaseString(getRegisterName(MO.getReg()));
break;
case MachineOperand::MO_Immediate:
@@ -380,14 +346,11 @@ printOperand(const MachineInstr *MI, int opNum)
break;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
return;
case MachineOperand::MO_GlobalAddress:
- {
- const GlobalValue *GV = MO.getGlobal();
- O << Mang->getValueName(GV);
- }
+ O << Mang->getMangledName(MO.getGlobal());
break;
case MachineOperand::MO_ExternalSymbol:
@@ -395,25 +358,23 @@ printOperand(const MachineInstr *MI, int opNum)
break;
case MachineOperand::MO_JumpTableIndex:
- O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
+ O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << MO.getIndex();
break;
case MachineOperand::MO_ConstantPoolIndex:
- O << TAI->getPrivateGlobalPrefix() << "CPI"
+ O << MAI->getPrivateGlobalPrefix() << "CPI"
<< getFunctionNumber() << "_" << MO.getIndex();
break;
default:
- O << "<unknown operand type>"; abort (); break;
+ llvm_unreachable("<unknown operand type>");
}
if (closeP) O << ")";
}
-void MipsAsmPrinter::
-printUnsignedImm(const MachineInstr *MI, int opNum)
-{
+void MipsAsmPrinter::printUnsignedImm(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand(opNum);
if (MO.getType() == MachineOperand::MO_Immediate)
O << (unsigned short int)MO.getImm();
@@ -422,8 +383,7 @@ printUnsignedImm(const MachineInstr *MI, int opNum)
}
void MipsAsmPrinter::
-printMemOperand(const MachineInstr *MI, int opNum, const char *Modifier)
-{
+printMemOperand(const MachineInstr *MI, int opNum, const char *Modifier) {
// when using stack locations for not load/store instructions
// print the same way as all normal 3 operand instructions.
if (Modifier && !strcmp(Modifier, "stackloc")) {
@@ -443,17 +403,14 @@ printMemOperand(const MachineInstr *MI, int opNum, const char *Modifier)
}
void MipsAsmPrinter::
-printFCCOperand(const MachineInstr *MI, int opNum, const char *Modifier)
-{
+printFCCOperand(const MachineInstr *MI, int opNum, const char *Modifier) {
const MachineOperand& MO = MI->getOperand(opNum);
O << Mips::MipsFCCToString((Mips::CondCode)MO.getImm());
}
-bool MipsAsmPrinter::
-doInitialization(Module &M)
-{
- Mang = new Mangler(M, "", TAI->getPrivateGlobalPrefix());
-
+void MipsAsmPrinter::EmitStartOfAsmFile(Module &M) {
+ // FIXME: Use SwitchSection.
+
// Tell the assembler which ABI we are using
O << "\t.section .mdebug." << emitCurrentABIString() << '\n';
@@ -464,12 +421,9 @@ doInitialization(Module &M)
// return to previous section
O << "\t.previous" << '\n';
-
- return false; // success
}
-void MipsAsmPrinter::
-printModuleLevelGV(const GlobalVariable* GVar) {
+void MipsAsmPrinter::PrintGlobalVariable(const GlobalVariable *GVar) {
const TargetData *TD = TM.getTargetData();
if (!GVar->hasInitializer())
@@ -480,10 +434,8 @@ printModuleLevelGV(const GlobalVariable* GVar) {
return;
O << "\n\n";
- std::string name = Mang->getValueName(GVar);
+ std::string name = Mang->getMangledName(GVar);
Constant *C = GVar->getInitializer();
- if (isa<MDNode>(C) || isa<MDString>(C))
- return;
const Type *CTy = C->getType();
unsigned Size = TD->getTypeAllocSize(CTy);
const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
@@ -503,7 +455,8 @@ printModuleLevelGV(const GlobalVariable* GVar) {
printVisibility(name, GVar->getVisibility());
- SwitchToSection(TAI->SectionForGlobal(GVar));
+ OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(GVar, Mang,
+ TM));
if (C->isNullValue() && !GVar->hasSection()) {
if (!GVar->isThreadLocal() &&
@@ -513,8 +466,8 @@ printModuleLevelGV(const GlobalVariable* GVar) {
if (GVar->hasLocalLinkage())
O << "\t.local\t" << name << '\n';
- O << TAI->getCOMMDirective() << name << ',' << Size;
- if (TAI->getCOMMDirectiveTakesAlignment())
+ O << MAI->getCOMMDirective() << name << ',' << Size;
+ if (MAI->getCOMMDirectiveTakesAlignment())
O << ',' << (1 << Align);
O << '\n';
@@ -536,29 +489,27 @@ printModuleLevelGV(const GlobalVariable* GVar) {
// or something. For now, just emit them as external.
case GlobalValue::ExternalLinkage:
// If external or appending, declare as a global symbol
- O << TAI->getGlobalDirective() << name << '\n';
+ O << MAI->getGlobalDirective() << name << '\n';
// Fall Through
case GlobalValue::PrivateLinkage:
+ case GlobalValue::LinkerPrivateLinkage:
case GlobalValue::InternalLinkage:
if (CVA && CVA->isCString())
printSizeAndType = false;
break;
case GlobalValue::GhostLinkage:
- cerr << "Should not have any unmaterialized functions!\n";
- abort();
+ llvm_unreachable("Should not have any unmaterialized functions!");
case GlobalValue::DLLImportLinkage:
- cerr << "DLLImport linkage is not supported by this target!\n";
- abort();
+ llvm_unreachable("DLLImport linkage is not supported by this target!");
case GlobalValue::DLLExportLinkage:
- cerr << "DLLExport linkage is not supported by this target!\n";
- abort();
+ llvm_unreachable("DLLExport linkage is not supported by this target!");
default:
- assert(0 && "Unknown linkage type!");
+ llvm_unreachable("Unknown linkage type!");
}
EmitAlignment(Align, GVar);
- if (TAI->hasDotTypeDotSizeDirective() && printSizeAndType) {
+ if (MAI->hasDotTypeDotSizeDirective() && printSizeAndType) {
O << "\t.type " << name << ",@object\n";
O << "\t.size " << name << ',' << Size << '\n';
}
@@ -567,26 +518,9 @@ printModuleLevelGV(const GlobalVariable* GVar) {
EmitGlobalConstant(C);
}
-bool MipsAsmPrinter::
-doFinalization(Module &M)
-{
- // Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(),
- E = M.global_end(); I != E; ++I)
- printModuleLevelGV(I);
-
- O << '\n';
-
- return AsmPrinter::doFinalization(M);
-}
-
-namespace {
- static struct Register {
- Register() {
- MipsTargetMachine::registerAsmPrinter(createMipsCodePrinterPass);
- }
- } Registrator;
-}
// Force static initialization.
-extern "C" void LLVMInitializeMipsAsmPrinter() { }
+extern "C" void LLVMInitializeMipsAsmPrinter() {
+ RegisterAsmPrinter<MipsAsmPrinter> X(TheMipsTarget);
+ RegisterAsmPrinter<MipsAsmPrinter> Y(TheMipselTarget);
+}
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