X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=lib%2FTarget%2FPowerPC%2FPPCCodeEmitter.cpp;h=df9ab52389ba85f2af71a0a43f5a0bfd792c86bf;hp=8f5e6fcbf0aa48fe64bcf50731c67db533516b44;hb=9ccaf53ada99c63737547c0235baeb8454b04e80;hpb=165b60de0b4a17e7d270e63fd4223b6c1c318fdd diff --git a/lib/Target/PowerPC/PPCCodeEmitter.cpp b/lib/Target/PowerPC/PPCCodeEmitter.cpp index 8f5e6fcbf0a..df9ab52389b 100644 --- a/lib/Target/PowerPC/PPCCodeEmitter.cpp +++ b/lib/Target/PowerPC/PPCCodeEmitter.cpp @@ -17,32 +17,46 @@ #include "PPC.h" #include "llvm/Module.h" #include "llvm/PassManager.h" -#include "llvm/CodeGen/MachineCodeEmitter.h" +#include "llvm/CodeGen/JITCodeEmitter.h" #include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineInstrBuilder.h" -#include "llvm/CodeGen/Passes.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/Compiler.h" +#include "llvm/CodeGen/MachineModuleInfo.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/raw_ostream.h" #include "llvm/Target/TargetOptions.h" using namespace llvm; namespace { - class VISIBILITY_HIDDEN PPCCodeEmitter : public MachineFunctionPass { + class PPCCodeEmitter : public MachineFunctionPass { TargetMachine &TM; - MachineCodeEmitter &MCE; - + JITCodeEmitter &MCE; + MachineModuleInfo *MMI; + + void getAnalysisUsage(AnalysisUsage &AU) const { + AU.addRequired(); + MachineFunctionPass::getAnalysisUsage(AU); + } + + static char ID; + /// MovePCtoLROffset - When/if we see a MovePCtoLR instruction, we record /// its address in the function into this pointer. void *MovePCtoLROffset; + public: + PPCCodeEmitter(TargetMachine &tm, JITCodeEmitter &mce) + : MachineFunctionPass(ID), TM(tm), MCE(mce) {} + + /// getBinaryCodeForInstr - This function, generated by the + /// CodeEmitterGenerator using TableGen, produces the binary encoding for + /// machine instructions. + + unsigned getBinaryCodeForInstr(const MachineInstr &MI); + /// getMachineOpValue - evaluates the MachineOperand of a given MachineInstr - /// - int getMachineOpValue(MachineInstr &MI, MachineOperand &MO); - public: - static char ID; - PPCCodeEmitter(TargetMachine &T, MachineCodeEmitter &M) - : MachineFunctionPass((intptr_t)&ID), TM(T), MCE(M) {} + unsigned getMachineOpValue(const MachineInstr &MI, + const MachineOperand &MO); const char *getPassName() const { return "PowerPC Machine Code Emitter"; } @@ -57,31 +71,25 @@ namespace { /// getValueBit - return the particular bit of Val /// unsigned getValueBit(int64_t Val, unsigned bit) { return (Val >> bit) & 1; } - - /// getBinaryCodeForInstr - This function, generated by the - /// CodeEmitterGenerator using TableGen, produces the binary encoding for - /// machine instructions. - /// - unsigned getBinaryCodeForInstr(MachineInstr &MI); }; - char PPCCodeEmitter::ID = 0; } +char PPCCodeEmitter::ID = 0; + /// createPPCCodeEmitterPass - Return a pass that emits the collected PPC code /// to the specified MCE object. -FunctionPass *llvm::createPPCCodeEmitterPass(PPCTargetMachine &TM, - MachineCodeEmitter &MCE) { - return new PPCCodeEmitter(TM, MCE); +FunctionPass *llvm::createPPCJITCodeEmitterPass(PPCTargetMachine &TM, + JITCodeEmitter &JCE) { + return new PPCCodeEmitter(TM, JCE); } -#ifdef __APPLE__ -extern "C" void sys_icache_invalidate(const void *Addr, size_t len); -#endif - bool PPCCodeEmitter::runOnMachineFunction(MachineFunction &MF) { assert((MF.getTarget().getRelocationModel() != Reloc::Default || MF.getTarget().getRelocationModel() != Reloc::Static) && "JIT relocation model must be set to static or default!"); + + MMI = &getAnalysis(); + MCE.setModuleInfo(MMI); do { MovePCtoLROffset = 0; MCE.startFunction(MF); @@ -94,18 +102,20 @@ bool PPCCodeEmitter::runOnMachineFunction(MachineFunction &MF) { void PPCCodeEmitter::emitBasicBlock(MachineBasicBlock &MBB) { MCE.StartMachineBasicBlock(&MBB); - + for (MachineBasicBlock::iterator I = MBB.begin(), E = MBB.end(); I != E; ++I){ - MachineInstr &MI = *I; + const MachineInstr &MI = *I; + MCE.processDebugLoc(MI.getDebugLoc(), true); switch (MI.getOpcode()) { default: - MCE.emitWordBE(getBinaryCodeForInstr(*I)); + MCE.emitWordBE(getBinaryCodeForInstr(MI)); break; - case PPC::IMPLICIT_DEF_GPRC: - case PPC::IMPLICIT_DEF_G8RC: - case PPC::IMPLICIT_DEF_F8: - case PPC::IMPLICIT_DEF_F4: - case PPC::IMPLICIT_DEF_VRRC: + case TargetOpcode::PROLOG_LABEL: + case TargetOpcode::EH_LABEL: + MCE.emitLabel(MI.getOperand(0).getMCSymbol()); + break; + case TargetOpcode::IMPLICIT_DEF: + case TargetOpcode::KILL: break; // pseudo opcode, no side effects case PPC::MovePCtoLR: case PPC::MovePCtoLR8: @@ -114,14 +124,16 @@ void PPCCodeEmitter::emitBasicBlock(MachineBasicBlock &MBB) { MCE.emitWordBE(0x48000005); // bl 1 break; } + MCE.processDebugLoc(MI.getDebugLoc(), false); } } -int PPCCodeEmitter::getMachineOpValue(MachineInstr &MI, MachineOperand &MO) { +unsigned PPCCodeEmitter::getMachineOpValue(const MachineInstr &MI, + const MachineOperand &MO) { - intptr_t rv = 0; // Return value; defaults to 0 for unhandled cases + unsigned rv = 0; // Return value; defaults to 0 for unhandled cases // or things that get fixed up later by the JIT. - if (MO.isRegister()) { + if (MO.isReg()) { rv = PPCRegisterInfo::getRegisterNumbering(MO.getReg()); // Special encoding for MTCRF and MFOCRF, which uses a bit mask for the @@ -130,20 +142,21 @@ int PPCCodeEmitter::getMachineOpValue(MachineInstr &MI, MachineOperand &MO) { (MO.getReg() >= PPC::CR0 && MO.getReg() <= PPC::CR7)) { rv = 0x80 >> rv; } - } else if (MO.isImmediate()) { + } else if (MO.isImm()) { rv = MO.getImm(); - } else if (MO.isGlobalAddress() || MO.isExternalSymbol() || - MO.isConstantPoolIndex() || MO.isJumpTableIndex()) { + } else if (MO.isGlobal() || MO.isSymbol() || + MO.isCPI() || MO.isJTI()) { unsigned Reloc = 0; - if (MI.getOpcode() == PPC::BL_Macho || MI.getOpcode() == PPC::BL8_Macho || - MI.getOpcode() == PPC::BL_ELF || MI.getOpcode() == PPC::BL8_ELF) + if (MI.getOpcode() == PPC::BL_Darwin || MI.getOpcode() == PPC::BL8_Darwin || + MI.getOpcode() == PPC::BL_SVR4 || MI.getOpcode() == PPC::BL8_ELF || + MI.getOpcode() == PPC::TAILB || MI.getOpcode() == PPC::TAILB8) Reloc = PPC::reloc_pcrel_bx; else { if (TM.getRelocationModel() == Reloc::PIC_) { assert(MovePCtoLROffset && "MovePCtoLR not seen yet?"); } switch (MI.getOpcode()) { - default: MI.dump(); assert(0 && "Unknown instruction for relocation!"); + default: MI.dump(); llvm_unreachable("Unknown instruction for relocation!"); case PPC::LIS: case PPC::LIS8: case PPC::ADDIS: @@ -164,7 +177,7 @@ int PPCCodeEmitter::getMachineOpValue(MachineInstr &MI, MachineOperand &MO) { case PPC::LWZ8: case PPC::LFS: case PPC::LFD: - + // Stores. case PPC::STB: case PPC::STB8: @@ -185,24 +198,24 @@ int PPCCodeEmitter::getMachineOpValue(MachineInstr &MI, MachineOperand &MO) { break; } } - + MachineRelocation R; - if (MO.isGlobalAddress()) { + if (MO.isGlobal()) { R = MachineRelocation::getGV(MCE.getCurrentPCOffset(), Reloc, - MO.getGlobal(), 0, + const_cast(MO.getGlobal()), 0, isa(MO.getGlobal())); - } else if (MO.isExternalSymbol()) { + } else if (MO.isSymbol()) { R = MachineRelocation::getExtSym(MCE.getCurrentPCOffset(), Reloc, MO.getSymbolName(), 0); - } else if (MO.isConstantPoolIndex()) { + } else if (MO.isCPI()) { R = MachineRelocation::getConstPool(MCE.getCurrentPCOffset(), Reloc, MO.getIndex(), 0); } else { - assert(MO.isJumpTableIndex()); + assert(MO.isJTI()); R = MachineRelocation::getJumpTable(MCE.getCurrentPCOffset(), Reloc, MO.getIndex(), 0); } - + // If in PIC mode, we need to encode the negated address of the // 'movepctolr' into the unrelocated field. After relocation, we'll have // &gv-&movepctolr-4 in the imm field. Once &movepctolr is added to the imm @@ -213,25 +226,27 @@ int PPCCodeEmitter::getMachineOpValue(MachineInstr &MI, MachineOperand &MO) { R.setConstantVal(-(intptr_t)MovePCtoLROffset - 4); } MCE.addRelocation(R); - - } else if (MO.isMachineBasicBlock()) { + + } else if (MO.isMBB()) { unsigned Reloc = 0; unsigned Opcode = MI.getOpcode(); - if (Opcode == PPC::B || Opcode == PPC::BL_Macho || - Opcode == PPC::BLA_Macho || Opcode == PPC::BL_ELF || - Opcode == PPC::BLA_ELF) + if (Opcode == PPC::B || Opcode == PPC::BL_Darwin || + Opcode == PPC::BLA_Darwin|| Opcode == PPC::BL_SVR4 || + Opcode == PPC::BLA_SVR4) Reloc = PPC::reloc_pcrel_bx; else // BCC instruction Reloc = PPC::reloc_pcrel_bcx; + MCE.addRelocation(MachineRelocation::getBB(MCE.getCurrentPCOffset(), Reloc, MO.getMBB())); } else { - cerr << "ERROR: Unknown type of MachineOperand: " << MO << "\n"; - abort(); +#ifndef NDEBUG + errs() << "ERROR: Unknown type of MachineOperand: " << MO << "\n"; +#endif + llvm_unreachable(0); } return rv; } #include "PPCGenCodeEmitter.inc" -