X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FCellSPU%2FAsmPrinter%2FSPUAsmPrinter.cpp;h=af28f89f83f35619e3b7aa86e03aaed7cc4e058d;hb=f71cb015c1386ff8adc9ef0aa03fc0f0fc4a6e3e;hp=6e77c87e6ff3b5b8a95a5c75e597400e75023d02;hpb=be8cc2a3dedeb7685f07e68cdc4b9502eb97eb2b;p=oota-llvm.git diff --git a/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp b/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp index 6e77c87e6ff..af28f89f83f 100644 --- a/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp +++ b/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp @@ -25,19 +25,21 @@ #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineInstr.h" -#include "llvm/Support/Mangler.h" -#include "llvm/Support/MathExtras.h" -#include "llvm/Support/CommandLine.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/Compiler.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Target/TargetAsmInfo.h" -#include "llvm/Target/TargetRegisterInfo.h" +#include "llvm/MC/MCStreamer.h" +#include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCSymbol.h" +#include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetInstrInfo.h" #include "llvm/Target/TargetOptions.h" +#include "llvm/Target/TargetRegisterInfo.h" +#include "llvm/Target/TargetRegistry.h" #include "llvm/ADT/Statistic.h" #include "llvm/ADT/StringExtras.h" -#include +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FormattedStream.h" +#include "llvm/Support/MathExtras.h" using namespace llvm; namespace { @@ -45,12 +47,11 @@ namespace { const std::string bss_section(".bss"); - class VISIBILITY_HIDDEN SPUAsmPrinter : public AsmPrinter { - std::set FnStubs, GVStubs; + class SPUAsmPrinter : public AsmPrinter { public: - explicit SPUAsmPrinter(raw_ostream &O, TargetMachine &TM, - const TargetAsmInfo *T, unsigned OL, bool V) : - AsmPrinter(O, TM, T, OL, V) {} + explicit SPUAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM, + const MCAsmInfo *T, bool V) : + AsmPrinter(O, TM, T, V) {} virtual const char *getPassName() const { return "STI CBEA SPU Assembly Printer"; @@ -61,10 +62,10 @@ namespace { } /// printInstruction - This method is automatically generated by tablegen - /// from the instruction set description. This method returns true if the - /// machine instruction was sufficiently described to print it, otherwise it - /// returns false. - bool printInstruction(const MachineInstr *MI); + /// from the instruction set description. + void printInstruction(const MachineInstr *MI); + static const char *getRegisterName(unsigned RegNo); + void printMachineInstruction(const MachineInstr *MI); void printOp(const MachineOperand &MO); @@ -75,14 +76,13 @@ namespace { unsigned RegNo = MO.getReg(); assert(TargetRegisterInfo::isPhysicalRegister(RegNo) && "Not physreg??"); - O << TM.getRegisterInfo()->get(RegNo).AsmName; + O << getRegisterName(RegNo); } void printOperand(const MachineInstr *MI, unsigned OpNo) { const MachineOperand &MO = MI->getOperand(OpNo); if (MO.isReg()) { - assert(TargetRegisterInfo::isPhysicalRegister(MO.getReg())&&"Not physreg??"); - O << TM.getRegisterInfo()->get(MO.getReg()).AsmName; + O << getRegisterName(MO.getReg()); } else if (MO.isImm()) { O << MO.getImm(); } else { @@ -149,8 +149,7 @@ namespace { // the value contained in the register. For this reason, the darwin // assembler requires that we print r0 as 0 (no r) when used as the base. const MachineOperand &MO = MI->getOperand(OpNo); - O << TM.getRegisterInfo()->get(MO.getReg()).AsmName; - O << ", "; + O << getRegisterName(MO.getReg()) << ", "; printOperand(MI, OpNo+1); } @@ -263,7 +262,7 @@ namespace { && "Invalid negated immediate rotate 7-bit argument"); O << -value; } else { - assert(0 &&"Invalid/non-immediate rotate amount in printRotateNeg7Imm"); + llvm_unreachable("Invalid/non-immediate rotate amount in printRotateNeg7Imm"); } } @@ -274,32 +273,25 @@ namespace { && "Invalid negated immediate rotate 7-bit argument"); O << -value; } else { - assert(0 &&"Invalid/non-immediate rotate amount in printRotateNeg7Imm"); + llvm_unreachable("Invalid/non-immediate rotate amount in printRotateNeg7Imm"); } } virtual bool runOnMachineFunction(MachineFunction &F) = 0; - //! Assembly printer cleanup after function has been emitted - virtual bool doFinalization(Module &M) = 0; }; /// LinuxAsmPrinter - SPU assembly printer, customized for Linux - class VISIBILITY_HIDDEN LinuxAsmPrinter : public SPUAsmPrinter { - DwarfWriter *DW; - MachineModuleInfo *MMI; + class LinuxAsmPrinter : public SPUAsmPrinter { public: - LinuxAsmPrinter(raw_ostream &O, SPUTargetMachine &TM, - const TargetAsmInfo *T, bool F, bool V) - : SPUAsmPrinter(O, TM, T, F, V), DW(0), MMI(0) {} + explicit LinuxAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM, + const MCAsmInfo *T, bool V) + : SPUAsmPrinter(O, TM, T, V) {} virtual const char *getPassName() const { return "STI CBEA SPU Assembly Printer"; } bool runOnMachineFunction(MachineFunction &F); - bool doInitialization(Module &M); - //! Dump globals, perform cleanup after function emission - bool doFinalization(Module &M); void getAnalysisUsage(AnalysisUsage &AU) const { AU.setPreservesAll(); @@ -307,9 +299,6 @@ namespace { AU.addRequired(); SPUAsmPrinter::getAnalysisUsage(AU); } - - //! Emit a global variable according to its section and type - void printModuleLevelGV(const GlobalVariable* GVar); }; } // end of anonymous namespace @@ -319,53 +308,42 @@ namespace { void SPUAsmPrinter::printOp(const MachineOperand &MO) { switch (MO.getType()) { case MachineOperand::MO_Immediate: - cerr << "printOp() does not handle immediate values\n"; - abort(); + llvm_report_error("printOp() does not handle immediate values"); return; case MachineOperand::MO_MachineBasicBlock: - printBasicBlockLabel(MO.getMBB()); + O << *MO.getMBB()->getSymbol(OutContext); return; case MachineOperand::MO_JumpTableIndex: - O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() + O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_' << MO.getIndex(); return; case MachineOperand::MO_ConstantPoolIndex: - O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() + O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_' << MO.getIndex(); return; case MachineOperand::MO_ExternalSymbol: // Computing the address of an external symbol, not calling it. if (TM.getRelocationModel() != Reloc::Static) { - std::string Name(TAI->getGlobalPrefix()); Name += MO.getSymbolName(); - GVStubs.insert(Name); - O << "L" << Name << "$non_lazy_ptr"; + O << "L" << MAI->getGlobalPrefix() << MO.getSymbolName() + << "$non_lazy_ptr"; return; } - O << TAI->getGlobalPrefix() << MO.getSymbolName(); + O << *GetExternalSymbolSymbol(MO.getSymbolName()); return; - case MachineOperand::MO_GlobalAddress: { - // Computing the address of a global symbol, not calling it. - GlobalValue *GV = MO.getGlobal(); - std::string Name = Mang->getValueName(GV); - + case MachineOperand::MO_GlobalAddress: // External or weakly linked global variables need non-lazily-resolved // stubs if (TM.getRelocationModel() != Reloc::Static) { + GlobalValue *GV = MO.getGlobal(); if (((GV->isDeclaration() || GV->hasWeakLinkage() || GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) { - GVStubs.insert(Name); - O << "L" << Name << "$non_lazy_ptr"; + O << *GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr"); return; } } - O << Name; - - if (GV->hasExternalWeakLinkage()) - ExtWeakSymbols.insert(GV); + O << *GetGlobalValueSymbol(MO.getGlobal()); return; - } - default: O << ""; return; @@ -413,17 +391,18 @@ bool SPUAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, /// void SPUAsmPrinter::printMachineInstruction(const MachineInstr *MI) { ++EmittedInsts; + processDebugLoc(MI, true); printInstruction(MI); + if (VerboseAsm) + EmitComments(*MI); + processDebugLoc(MI, false); + O << '\n'; } /// runOnMachineFunction - This uses the printMachineInstruction() /// method to print assembly for each instruction. /// -bool -LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) -{ - this->MF = &MF; - +bool LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) { SetupMachineFunction(MF); O << "\n\n"; @@ -433,27 +412,29 @@ LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) // Print out labels for the function. const Function *F = MF.getFunction(); - SwitchToSection(TAI->SectionForGlobal(F)); - EmitAlignment(3, F); + OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM)); + EmitAlignment(MF.getAlignment(), F); switch (F->getLinkage()) { - default: assert(0 && "Unknown linkage type!"); + default: llvm_unreachable("Unknown linkage type!"); case Function::PrivateLinkage: + case Function::LinkerPrivateLinkage: case Function::InternalLinkage: // Symbols default to internal. break; case Function::ExternalLinkage: - O << "\t.global\t" << CurrentFnName << "\n" - << "\t.type\t" << CurrentFnName << ", @function\n"; + O << "\t.global\t" << *CurrentFnSym << "\n" << "\t.type\t"; + O << *CurrentFnSym << ", @function\n"; break; case Function::WeakAnyLinkage: case Function::WeakODRLinkage: case Function::LinkOnceAnyLinkage: case Function::LinkOnceODRLinkage: - O << "\t.global\t" << CurrentFnName << "\n"; - O << "\t.weak_definition\t" << CurrentFnName << "\n"; + O << "\t.global\t" << *CurrentFnSym << "\n"; + O << "\t.weak_definition\t" << *CurrentFnSym << "\n"; break; } - O << CurrentFnName << ":\n"; + + O << *CurrentFnSym << ":\n"; // Emit pre-function debug information. DW->BeginFunction(&MF); @@ -463,8 +444,7 @@ LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) I != E; ++I) { // 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) { @@ -473,10 +453,10 @@ LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) } } - O << "\t.size\t" << CurrentFnName << ",.-" << CurrentFnName << "\n"; + O << "\t.size\t" << *CurrentFnSym << ",.-" << *CurrentFnSym << "\n"; // Print out jump tables referenced by the function. - EmitJumpTableInfo(MF.getJumpTableInfo(), MF); + EmitJumpTableInfo(MF); // Emit post-function debug information. DW->EndFunction(&MF); @@ -485,136 +465,7 @@ LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF) return false; } - -bool LinuxAsmPrinter::doInitialization(Module &M) { - bool Result = AsmPrinter::doInitialization(M); - SwitchToTextSection("\t.text"); - // Emit initial debug information. - DW = getAnalysisIfAvailable(); - assert(DW && "Dwarf Writer is not available"); - MMI = getAnalysisIfAvailable(); - DW->BeginModule(&M, MMI, O, this, TAI); - return Result; -} - -/// PrintUnmangledNameSafely - Print out the printable characters in the name. -/// Don't print things like \\n or \\0. -static void PrintUnmangledNameSafely(const Value *V, raw_ostream &OS) { - for (const char *Name = V->getNameStart(), *E = Name+V->getNameLen(); - Name != E; ++Name) - if (isprint(*Name)) - OS << *Name; -} - -/*! - Emit a global variable according to its section, alignment, etc. - - \note This code was shamelessly copied from the PowerPC's assembly printer, - which sort of screams for some kind of refactorization of common code. - */ -void LinuxAsmPrinter::printModuleLevelGV(const GlobalVariable* GVar) { - const TargetData *TD = TM.getTargetData(); - - if (!GVar->hasInitializer()) - return; - - // Check to see if this is a special global used by LLVM, if so, emit it. - if (EmitSpecialLLVMGlobal(GVar)) - return; - - std::string name = Mang->getValueName(GVar); - - printVisibility(name, GVar->getVisibility()); - - Constant *C = GVar->getInitializer(); - const Type *Type = C->getType(); - unsigned Size = TD->getTypePaddedSize(Type); - unsigned Align = TD->getPreferredAlignmentLog(GVar); - - SwitchToSection(TAI->SectionForGlobal(GVar)); - - if (C->isNullValue() && /* FIXME: Verify correct */ - !GVar->hasSection() && - (GVar->hasLocalLinkage() || GVar->hasExternalLinkage() || - GVar->isWeakForLinker())) { - if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it. - - if (GVar->hasExternalLinkage()) { - O << "\t.global " << name << '\n'; - O << "\t.type " << name << ", @object\n"; - O << name << ":\n"; - O << "\t.zero " << Size << '\n'; - } else if (GVar->hasLocalLinkage()) { - O << TAI->getLCOMMDirective() << name << ',' << Size; - } else { - O << ".comm " << name << ',' << Size; - } - O << "\t\t" << TAI->getCommentString() << " '"; - PrintUnmangledNameSafely(GVar, O); - O << "'\n"; - return; - } - - switch (GVar->getLinkage()) { - // Should never be seen for the CellSPU platform... - case GlobalValue::LinkOnceAnyLinkage: - case GlobalValue::LinkOnceODRLinkage: - case GlobalValue::WeakAnyLinkage: - case GlobalValue::WeakODRLinkage: - case GlobalValue::CommonLinkage: - O << "\t.global " << name << '\n' - << "\t.type " << name << ", @object\n" - << "\t.weak " << name << '\n'; - break; - 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.global " << name << '\n' - << "\t.type " << name << ", @object\n"; - // FALL THROUGH - case GlobalValue::PrivateLinkage: - case GlobalValue::InternalLinkage: - break; - default: - cerr << "Unknown linkage type!"; - abort(); - } - - EmitAlignment(Align, GVar); - O << name << ":\t\t\t\t" << TAI->getCommentString() << " '"; - PrintUnmangledNameSafely(GVar, O); - O << "'\n"; - - // If the initializer is a extern weak symbol, remember to emit the weak - // reference! - if (const GlobalValue *GV = dyn_cast(C)) - if (GV->hasExternalWeakLinkage()) - ExtWeakSymbols.insert(GV); - - EmitGlobalConstant(C); - O << '\n'; -} - -bool LinuxAsmPrinter::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); - - // Emit initial debug information. - DW->EndModule(); - - return AsmPrinter::doFinalization(M); -} - -/// createSPUCodePrinterPass - Returns a pass that prints the Cell SPU -/// assembly code for a MachineFunction to the given output stream, in a format -/// that the Linux SPU assembler can deal with. -/// -FunctionPass *llvm::createSPUAsmPrinterPass(raw_ostream &o, - SPUTargetMachine &tm, - unsigned OptLevel, bool verbose) { - return new LinuxAsmPrinter(o, tm, tm.getTargetAsmInfo(), OptLevel, verbose); +// Force static initialization. +extern "C" void LLVMInitializeCellSPUAsmPrinter() { + RegisterAsmPrinter X(TheCellSPUTarget); }