diff --git a/lib/CodeGen/TargetMachine/Sparc/Sparc.cpp b/lib/CodeGen/TargetMachine/Sparc/Sparc.cpp index 372b7e0dca9..017749f1107 100644 --- a/lib/CodeGen/TargetMachine/Sparc/Sparc.cpp +++ b/lib/CodeGen/TargetMachine/Sparc/Sparc.cpp @@ -1,4 +1,3 @@ -// $Id$ //*************************************************************************** // File: // Sparc.cpp @@ -9,305 +8,11 @@ // 7/15/01 - Vikram Adve - Created //**************************************************************************/ +#include "SparcInternals.h" #include "llvm/Method.h" -#include "llvm/Instruction.h" +#include "llvm/CodeGen/InstrScheduling.h" +#include "llvm/CodeGen/InstrSelection.h" -#include "llvm/CodeGen/LiveRange.h" -#include "llvm/CodeGen/LiveRangeInfo.h" -#include "llvm/CodeGen/Sparc.h" -#include "llvm/CodeGen/SparcRegInfo.h" - -//************************ Class Implementations **************************/ - - - - - -//--------------------------------------------------------------------------- -// UltraSparcRegInfo -// Purpose: -// This method will color incoming args to a method. If there are more -// args than that can fit in regs, code will be inserted to pop them from -// stack -//--------------------------------------------------------------------------- - - -void UltraSparcRegInfo::colorArgs(const Method *const Meth, - LiveRangeInfo& LRI) const -{ - - // get the argument list - const Method::ArgumentListType& ArgList = Meth->getArgumentList(); - // get an iterator to arg list - Method::ArgumentListType::const_iterator ArgIt = ArgList.begin(); - unsigned intArgNo=0; - - // to keep track of which float regs are allocated for argument passing - bool FloatArgUsedArr[NumOfFloatArgRegs]; - - // init float arg used array - for(unsigned i=0; i < NumOfFloatArgRegs; ++i) - FloatArgUsedArr[i] = false; - - // for each argument - for( ; ArgIt != ArgList.end() ; ++ArgIt) { - - // get the LR of arg - LiveRange *const LR = LRI.getLiveRangeForValue((const Value *) *ArgIt); - unsigned RegClassID = (LR->getRegClass())->getID(); - - // if the arg is in int class - allocate a reg for an int arg - if( RegClassID == IntRegClassID ) { - - if( intArgNo < NumOfIntArgRegs) { - LR->setColor( SparcIntRegOrder::i0 + intArgNo ); - - if( DEBUG_RA) printReg( LR ); - } - - else { - // TODO: Insert push code here - assert( 0 && "Insert push code here!"); - } - ++intArgNo; - } - - // if the arg is float/double - else if ( RegClassID == FloatRegClassID) { - - if( LR->getTypeID() == Type::DoubleTyID ) { - - // find the first reg # we can pass a double arg - for(unsigned i=0; i < NumOfFloatArgRegs; i+= 2) { - if ( !FloatArgUsedArr[i] && !FloatArgUsedArr[i+1] ) { - LR->setColor( SparcFloatRegOrder::f0 + i ); - FloatArgUsedArr[i] = true; - FloatArgUsedArr[i+1] = true; - if( DEBUG_RA) printReg( LR ); - break; - } - } - if( ! LR->hasColor() ) { // if LR was not colored above - - assert(0 && "insert push code here for a double"); - - } - - } - else if( LR->getTypeID() == Type::FloatTyID ) { - - // find the first reg # we can pass a float arg - for(unsigned i=0; i < NumOfFloatArgRegs; ++i) { - if ( !FloatArgUsedArr[i] ) { - LR->setColor( SparcFloatRegOrder::f0 + i ); - FloatArgUsedArr[i] = true; - if( DEBUG_RA) printReg( LR ); - break; - } - } - if( ! LR->hasColor() ) { // if LR was not colored above - assert(0 && "insert push code here for a float"); - } - - } - else - assert(0 && "unknown float type in method arg"); - - } // float register class - - else - assert(0 && "Unknown RegClassID"); - } - -} - - - - - - -void UltraSparcRegInfo::printReg(const LiveRange *const LR) { - - unsigned RegClassID = (LR->getRegClass())->getID(); - - cout << " *Node " << (LR->getUserIGNode())->getIndex(); - - if( ! LR->hasColor() ) { - cout << " - could not find a color" << endl; - return; - } - - // if a color is found - - cout << " colored with color "<< LR->getColor(); - - if( RegClassID == IntRegClassID ) { - - cout<< " [" << SparcIntRegOrder::getRegName(LR->getColor()) ; - cout << "]" << endl; - } - else if ( RegClassID == FloatRegClassID) { - cout << "[" << SparcFloatRegOrder::getRegName(LR->getColor()); - if( LR->getTypeID() == Type::DoubleTyID ) - cout << "+" << SparcFloatRegOrder::getRegName(LR->getColor()+1); - cout << "]" << endl; - } - - -} - - - - - -void UltraSparcRegInfo::colorCallArgs(vector & - CallInstrList, LiveRangeInfo& LRI ) const -{ - - vector::const_iterator InstIt = CallInstrList.begin(); - - for( ; InstIt != CallInstrList.end(); ++InstIt) { - - // Inst = LLVM call instruction - const Instruction *const CallI = *InstIt; - - MachineCodeForVMInstr & MInstVec = CallI->getMachineInstrVec(); - MachineCodeForVMInstr::const_iterator MIIt = MInstVec.begin(); - - // find the CALL/JMMPL machine instruction - for( ; MIIt != MInstVec.end() && - ! getUltraSparcInfo().getInstrInfo().isCall((*MIIt)->getOpCode()); - ++MIIt ); - - assert( (MIIt != MInstVec.end()) && "CALL/JMPL not found"); - - // CallMI = CALL/JMPL machine isntruction - const MachineInstr *const CallMI = *MIIt; - - Instruction::op_const_iterator OpIt = CallI->op_begin(); - - unsigned intArgNo=0; - //unsigned NumOfCallInterfs = LR->getNumOfCallInterferences(); - - // to keep track of which float regs are allocated for argument passing - bool FloatArgUsedArr[NumOfFloatArgRegs]; - - // init float arg used array - for(unsigned i=0; i < NumOfFloatArgRegs; ++i) - FloatArgUsedArr[i] = false; - - // go thru all the operands of LLVM instruction - for( ; OpIt != CallI->op_end(); ++OpIt ) { - - // get the LR of call operand (parameter) - LiveRange *const LR = LRI.getLiveRangeForValue((const Value *) *OpIt); - - if ( !LR ) { - cout << " Warning: In call instr, no LR for arg: " ; - printValue(*OpIt); - cout << endl; - continue; - } - - unsigned RegClassID = (LR->getRegClass())->getID(); - - // if the arg is in int class - allocate a reg for an int arg - if( RegClassID == IntRegClassID ) { - - if( intArgNo < NumOfIntArgRegs) { - setCallArgColor( LR, SparcIntRegOrder::o0 + intArgNo ); - } - - else { - // TODO: Insert push code here - assert( 0 && "Insert push code here!"); - } - ++intArgNo; - } - - // if the arg is float/double - else if ( RegClassID == FloatRegClassID) { - - if( LR->getTypeID() == Type::DoubleTyID ) { - - // find the first reg # we can pass a double arg - for(unsigned i=0; i < NumOfFloatArgRegs; i+= 2) { - if ( !FloatArgUsedArr[i] && !FloatArgUsedArr[i+1] ) { - setCallArgColor(LR, SparcFloatRegOrder::f0 + i ); - FloatArgUsedArr[i] = true; - FloatArgUsedArr[i+1] = true; - //if( DEBUG_RA) printReg( LR ); - break; - } - } - if( ! LR->hasColor() ) { // if LR was not colored above - - assert(0 && "insert push code here for a double"); - - } - - } - else if( LR->getTypeID() == Type::FloatTyID ) { - - // find the first reg # we can pass a float arg - for(unsigned i=0; i < NumOfFloatArgRegs; ++i) { - if ( !FloatArgUsedArr[i] ) { - setCallArgColor(LR, SparcFloatRegOrder::f0 + i ); - FloatArgUsedArr[i] = true; - // LR->setColor( SparcFloatRegOrder::f0 + i ); - // if( DEBUG_RA) printReg( LR ); - break; - } - } - if( ! LR->hasColor() ) { // if LR was not colored above - assert(0 && "insert push code here for a float"); - } - - } - else - assert(0 && "unknown float type in method arg"); - - } // float register class - - else - assert(0 && "Unknown RegClassID"); - - - } // for each operand in a call instruction - - - - - } // for all call instrctions in CallInstrList - -} - - -void UltraSparcRegInfo::setCallArgColor(LiveRange *const LR, - const unsigned RegNo) const { - - // if no call interference and LR is NOT previously colored (e.g., as an - // incoming arg) - if( ! LR->getNumOfCallInterferences() && ! LR->hasColor() ) { - // we can directly allocate a %o register - LR->setColor( RegNo); - if( DEBUG_RA) printReg( LR ); - } - else { // there are call interferences - - /* - // insert a copy machine instr to copy from LR to %o(reg) - PreMInstrMap[ CallMI ] = - getNewCopyMInstr( LR->, SparcIntRegOrder::o0 + intArgNo ); - */ - cout << " $$$ TODO: Insert a copy for call argument!: " << endl; - - // We don't color LR here. It's colored as any other normal LR - } - -} - - //--------------------------------------------------------------------------- @@ -375,11 +80,6 @@ UltraSparcSchedInfo::initializeResources() } - - - - - //--------------------------------------------------------------------------- // class UltraSparcMachine // @@ -392,12 +92,10 @@ UltraSparcSchedInfo::initializeResources() //--------------------------------------------------------------------------- UltraSparc::UltraSparc() - : TargetMachine("UltraSparc-Native") { machineInstrInfo = new UltraSparcInstrInfo; machineSchedInfo = new UltraSparcSchedInfo(machineInstrInfo); - machineRegInfo = new UltraSparcRegInfo(this); optSizeForSubWordData = 4; minMemOpWordSize = 8; @@ -408,8 +106,21 @@ UltraSparc::UltraSparc() UltraSparc::~UltraSparc() { delete (UltraSparcInstrInfo*) machineInstrInfo; - delete (UltraSparcRegInfo*) machineRegInfo; delete (UltraSparcSchedInfo*) machineSchedInfo; } -//**************************************************************************/ + +bool UltraSparc::compileMethod(Method *M) { + if (SelectInstructionsForMethod(M, *this)) { + cerr << "Instruction selection failed for method " << M->getName() + << "\n\n"; + return true; + } + + if (ScheduleInstructionsWithSSA(M, *this)) { + cerr << "Instruction scheduling before allocation failed for method " + << M->getName() << "\n\n"; + return true; + } + return false; +}