#include "llvm/iOther.h"
#include "llvm/Function.h"
#include "llvm/Constants.h"
+#include "llvm/ConstantHandling.h"
#include "Support/MathExtras.h"
#include <math.h>
using std::vector;
{
Value* constOp;
if (isa<Constant>(lval) && isa<Constant>(rval))
- { // both operands are constant: try both orders!
- vector<MachineInstr*> mvec1, mvec2;
- unsigned int lcost = CreateMulConstInstruction(target, F, lval, rval,
- destVal, mvec1, mcfi);
- unsigned int rcost = CreateMulConstInstruction(target, F, rval, lval,
- destVal, mvec2, mcfi);
- vector<MachineInstr*>& mincostMvec = (lcost <= rcost)? mvec1 : mvec2;
- vector<MachineInstr*>& maxcostMvec = (lcost <= rcost)? mvec2 : mvec1;
- mvec.insert(mvec.end(), mincostMvec.begin(), mincostMvec.end());
-
- for (unsigned int i=0; i < maxcostMvec.size(); ++i)
- delete maxcostMvec[i];
+ { // both operands are constant: evaluate and "set" in dest
+ Constant* P = ConstantFoldBinaryInstruction(Instruction::Mul,
+ cast<Constant>(lval), cast<Constant>(rval));
+ target.getInstrInfo().CreateCodeToLoadConst(target,F,P,destVal,mvec,mcfi);
}
else if (isa<Constant>(rval)) // rval is constant, but not lval
CreateMulConstInstruction(target, F, lval, rval, destVal, mvec, mcfi);
vector<MachineInstr*>& getMvec)
{
MachineInstr* M;
-
+ MachineCodeForInstruction& mcfi = MachineCodeForInstruction::get(result);
+
// Create a Value to hold the (constant) element size
Value* tsizeVal = ConstantSInt::get(Type::IntTy, tsize);
// Create a temporary value to hold the result of MUL
TmpInstruction* tmpProd = new TmpInstruction(numElementsVal, tsizeVal);
- MachineCodeForInstruction::get(result).addTemp(tmpProd);
+ mcfi.addTemp(tmpProd);
// Instruction 1: mul numElements, typeSize -> tmpProd
- M = new MachineInstr(MULX);
- M->SetMachineOperandVal(0, MachineOperand::MO_VirtualRegister, numElementsVal);
- M->SetMachineOperandVal(1, MachineOperand::MO_VirtualRegister, tsizeVal);
- M->SetMachineOperandVal(2, MachineOperand::MO_VirtualRegister, tmpProd);
- getMvec.push_back(M);
+ CreateMulInstruction(target, F, numElementsVal, tsizeVal, tmpProd, getMvec,
+ mcfi, INVALID_MACHINE_OPCODE);
// Instruction 2: sub %sp, tmpProd -> %sp
M = new MachineInstr(SUB);
unsigned int numElements,
vector<MachineInstr*>& getMvec)
{
+ assert(tsize > 0 && "Illegal (zero) type size for alloca");
assert(result && result->getParent() &&
"Result value is not part of a function?");
Function *F = result->getParent()->getParent();
static void
SetOperandsForMemInstr(vector<MachineInstr*>& mvec,
- const InstructionNode* vmInstrNode,
+ InstructionNode* vmInstrNode,
const TargetMachine& target)
{
Instruction* memInst = vmInstrNode->getInstruction();
target.DataLayout.getTypeSize(eltType));
// CreateMulInstruction() folds constants intelligently enough.
- CreateMulInstruction(target,
- memInst->getParent()->getParent(),
+ CreateMulInstruction(target, memInst->getParent()->getParent(),
idxVal, /* lval, not likely to be const*/
eltSizeVal, /* rval, likely to be constant */
addr, /* result */
- mulVec,
- MachineCodeForInstruction::get(memInst),
+ mulVec, MachineCodeForInstruction::get(memInst),
INVALID_MACHINE_OPCODE);
// Insert mulVec[] before *mvecI in mvec[] and update mvecI
mvec.push_back(new MachineInstr(ADD));
SetOperandsForMemInstr(mvec, subtreeRoot, target);
break;
-
+
case 57: // reg: Alloca: Implement as 1 instruction:
{ // add %fp, offsetFromFP -> result
AllocationInst* instr =
cast<AllocationInst>(subtreeRoot->getInstruction());
unsigned int tsize =
- target.findOptimalStorageSize(instr->getAllocatedType());
+ target.DataLayout.getTypeSize(instr->getAllocatedType());
assert(tsize != 0);
CreateCodeForFixedSizeAlloca(target, instr, tsize, 1, mvec);
break;
}
-
+
case 58: // reg: Alloca(reg): Implement as 3 instructions:
// mul num, typeSz -> tmp
// sub %sp, tmp -> %sp
const Type* eltType = instr->getAllocatedType();
// If #elements is constant, use simpler code for fixed-size allocas
- int tsize = (int) target.findOptimalStorageSize(eltType);
+ int tsize = (int) target.DataLayout.getTypeSize(eltType);
Value* numElementsVal = NULL;
bool isArray = instr->isArrayAllocation();
numElementsVal, mvec);
break;
}
-
+
case 61: // reg: Call
- { // Generate a direct (CALL) or indirect (JMPL). depending
- // Mark the return-address register and the indirection
- // register (if any) as hidden virtual registers.
- // Also, mark the operands of the Call and return value (if
- // any) as implicit operands of the CALL machine instruction.
+ { // Generate a direct (CALL) or indirect (JMPL) call.
+ // Mark the return-address register, the indirection
+ // register (for indirect calls), the operands of the Call,
+ // and the return value (if any) as implicit operands
+ // of the machine instruction.
//
// If this is a varargs function, floating point arguments
// have to passed in integer registers so insert
//
CallInst *callInstr = cast<CallInst>(subtreeRoot->getInstruction());
Value *callee = callInstr->getCalledValue();
-
- // Create hidden virtual register for return address, with type void*.
+
+ // Create hidden virtual register for return address with type void*
TmpInstruction* retAddrReg =
new TmpInstruction(PointerType::get(Type::VoidTy), callInstr);
MachineCodeForInstruction::get(callInstr).addTemp(retAddrReg);
-
+
// Generate the machine instruction and its operands.
// Use CALL for direct function calls; this optimistically assumes
// the PC-relative address fits in the CALL address field (22 bits).
// Use JMPL for indirect calls.
//
- if (isa<Function>(callee))
- { // direct function call
- M = new MachineInstr(CALL);
- M->SetMachineOperandVal(0, MachineOperand::MO_PCRelativeDisp,
- callee);
- }
- else
- { // indirect function call
- M = new MachineInstr(JMPLCALL);
- M->SetMachineOperandVal(0, MachineOperand::MO_VirtualRegister,
- callee);
- M->SetMachineOperandConst(1, MachineOperand::MO_SignExtendedImmed,
- (int64_t) 0);
- M->SetMachineOperandVal(2, MachineOperand::MO_VirtualRegister,
- retAddrReg);
- }
-
+ if (isa<Function>(callee)) // direct function call
+ M = Create1OperandInstr_Addr(CALL, callee);
+ else // indirect function call
+ M = Create3OperandInstr_SImmed(JMPLCALL, callee,
+ (int64_t) 0, retAddrReg);
mvec.push_back(M);
const FunctionType* funcType =
// If this arg. is in the first $K$ regs, add a copy
// float-to-int instruction to pass the value as an integer.
- if (i < target.getRegInfo().GetNumOfIntArgRegs())
+ if (i <= target.getRegInfo().GetNumOfIntArgRegs())
{
MachineCodeForInstruction &destMCFI =
MachineCodeForInstruction::get(callInstr);
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