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view graal/com.oracle.graal.compiler.sparc/src/com/oracle/graal/compiler/sparc/SPARCLIRGenerator.java @ 16520:9a07bf8467a6
[SPARC] Implement floatingpoint branch instructions, removing math substitutions for SPARC; fixing problems with constants in debug info (Big/Little Endian problems)
author | Stefan Anzinger <stefan.anzinger@gmail.com> |
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date | Sun, 13 Jul 2014 17:46:57 -0700 |
parents | 2b91702c4e69 |
children | a08a58d0736b |
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/* * Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.compiler.sparc; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.lir.sparc.SPARCArithmetic.*; import static com.oracle.graal.lir.sparc.SPARCBitManipulationOp.IntrinsicOpcode.*; import static com.oracle.graal.lir.sparc.SPARCCompare.*; import static com.oracle.graal.lir.sparc.SPARCControlFlow.*; import static com.oracle.graal.lir.sparc.SPARCMathIntrinsicOp.IntrinsicOpcode.*; import static com.oracle.graal.lir.sparc.SPARCMove.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.compiler.common.*; import com.oracle.graal.compiler.common.calc.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.StandardOp.JumpOp; import com.oracle.graal.lir.gen.*; import com.oracle.graal.lir.sparc.*; import com.oracle.graal.phases.util.*; /** * This class implements the SPARC specific portion of the LIR generator. */ public abstract class SPARCLIRGenerator extends LIRGenerator { private class SPARCSpillMoveFactory implements LIR.SpillMoveFactory { @Override public LIRInstruction createMove(AllocatableValue result, Value input) { return SPARCLIRGenerator.this.createMove(result, input); } } public SPARCLIRGenerator(Providers providers, CallingConvention cc, LIRGenerationResult lirGenRes) { super(providers, cc, lirGenRes); lirGenRes.getLIR().setSpillMoveFactory(new SPARCSpillMoveFactory()); } @Override public boolean canStoreConstant(Constant c) { // SPARC can only store integer null constants (via g0) switch (c.getKind()) { case Float: case Double: return false; default: return c.isDefaultForKind(); } } @Override public boolean canInlineConstant(Constant c) { switch (c.getKind()) { case Int: return SPARCAssembler.isSimm13(c.asInt()) && !getCodeCache().needsDataPatch(c); case Long: return SPARCAssembler.isSimm13(c.asLong()) && !getCodeCache().needsDataPatch(c); case Object: return c.isNull(); default: return false; } } @Override public Variable emitMove(Value input) { Variable result = newVariable(input.getLIRKind()); emitMove(result, input); return result; } protected SPARCLIRInstruction createMove(AllocatableValue dst, Value src) { if (src instanceof SPARCAddressValue) { return new LoadAddressOp(dst, (SPARCAddressValue) src); } else if (isRegister(src) || isStackSlot(dst)) { return new MoveFromRegOp(dst, src); } else { return new MoveToRegOp(dst, src); } } @Override public void emitMove(AllocatableValue dst, Value src) { append(createMove(dst, src)); } @Override public void emitData(AllocatableValue dst, byte[] data) { append(new LoadDataAddressOp(dst, data)); } @Override public SPARCAddressValue emitAddress(Value base, long displacement, Value index, int scale) { AllocatableValue baseRegister; long finalDisp = displacement; if (isConstant(base)) { if (asConstant(base).isNull()) { baseRegister = Value.ILLEGAL; } else if (asConstant(base).getKind() != Kind.Object) { finalDisp += asConstant(base).asLong(); baseRegister = Value.ILLEGAL; } else { baseRegister = load(base); } } else { baseRegister = asAllocatable(base); } AllocatableValue indexRegister; if (!index.equals(Value.ILLEGAL) && scale != 0) { if (isConstant(index)) { finalDisp += asConstant(index).asLong() * scale; indexRegister = Value.ILLEGAL; } else { if (scale != 1) { Value longIndex = index.getKind() == Kind.Long ? index : emitSignExtend(index, 32, 64); if (CodeUtil.isPowerOf2(scale)) { indexRegister = emitShl(longIndex, Constant.forLong(CodeUtil.log2(scale))); } else { indexRegister = emitMul(longIndex, Constant.forLong(scale)); } } else { indexRegister = asAllocatable(index); } // if (baseRegister.equals(Value.ILLEGAL)) { // baseRegister = asAllocatable(indexRegister); // } else { // Variable newBase = newVariable(Kind.Long); // emitMove(newBase, baseRegister); // baseRegister = newBase; // baseRegister = emitAdd(baseRegister, indexRegister); // } } } else { indexRegister = Value.ILLEGAL; } int displacementInt; // If we don't have an index register we can use a displacement, otherwise load the // displacement into a register and add it to the base. if (indexRegister.equals(Value.ILLEGAL)) { displacementInt = (int) finalDisp; assert SPARCAssembler.isSimm13(displacementInt) : displacementInt; } else { displacementInt = 0; if (baseRegister.equals(Value.ILLEGAL)) { baseRegister = load(Constant.forLong(finalDisp)); } else { if (finalDisp == 0) { // Nothing to do. Just use the base register. } else { Variable longBaseRegister = newVariable(LIRKind.derivedReference(Kind.Long)); emitMove(longBaseRegister, baseRegister); baseRegister = emitAdd(longBaseRegister, Constant.forLong(finalDisp)); } } } LIRKind resultKind = getAddressKind(base, displacement, index); return new SPARCAddressValue(resultKind, baseRegister, indexRegister, displacementInt); } protected SPARCAddressValue asAddressValue(Value address) { if (address instanceof SPARCAddressValue) { return (SPARCAddressValue) address; } else { return emitAddress(address, 0, Value.ILLEGAL, 0); } } @Override public Value emitAddress(StackSlot address) { Variable result = newVariable(LIRKind.value(target().wordKind)); append(new StackLoadAddressOp(result, address)); return result; } @Override public void emitReturn(Value input) { AllocatableValue operand = Value.ILLEGAL; if (input != null) { operand = resultOperandFor(input.getLIRKind()); emitMove(operand, input); } append(new ReturnOp(operand)); } @Override public void emitJump(LabelRef label) { append(new JumpOp(label)); } @Override public void emitCompareBranch(PlatformKind cmpKind, Value left, Value right, Condition cond, boolean unorderedIsTrue, LabelRef trueDestination, LabelRef falseDestination, double trueDestinationProbability) { boolean mirrored = emitCompare(left, right); Condition finalCondition = mirrored ? cond.mirror() : cond; Kind kind = left.getKind().getStackKind(); switch (kind) { case Int: case Long: case Object: append(new BranchOp(finalCondition, trueDestination, falseDestination, kind)); break; // case Float: // append(new CompareOp(FCMP, x, y)); // append(new BranchOp(condition, label)); // break; case Double: append(new BranchOp(cond, trueDestination, falseDestination, kind)); break; default: throw GraalInternalError.shouldNotReachHere("" + left.getKind()); } } @Override public void emitOverflowCheckBranch(LabelRef overflow, LabelRef noOverflow, double overflowProbability) { // append(new BranchOp(negated ? ConditionFlag.NoOverflow : ConditionFlag.Overflow, label)); throw GraalInternalError.unimplemented(); } @Override public void emitIntegerTestBranch(Value left, Value right, LabelRef trueDestination, LabelRef falseDestination, double trueDestinationProbability) { emitIntegerTest(left, right); append(new BranchOp(Condition.EQ, trueDestination, falseDestination, left.getKind().getStackKind())); } private void emitIntegerTest(Value a, Value b) { assert a.getKind().isNumericInteger(); if (LIRValueUtil.isVariable(b)) { append(new SPARCTestOp(load(b), loadNonConst(a))); } else { append(new SPARCTestOp(load(a), loadNonConst(b))); } } @Override public Variable emitConditionalMove(PlatformKind cmpKind, Value left, Value right, Condition cond, boolean unorderedIsTrue, Value trueValue, Value falseValue) { boolean mirrored = emitCompare(left, right); Condition finalCondition = mirrored ? cond.mirror() : cond; Variable result = newVariable(trueValue.getLIRKind()); Kind kind = left.getKind().getStackKind(); switch (kind) { case Int: case Long: case Object: append(new CondMoveOp(kind, result, finalCondition, load(trueValue), loadNonConst(falseValue))); break; case Float: case Double: append(new FloatCondMoveOp(kind, result, finalCondition, unorderedIsTrue, load(trueValue), load(falseValue))); break; default: throw GraalInternalError.shouldNotReachHere("" + left.getKind()); } return result; } /** * This method emits the compare instruction, and may reorder the operands. It returns true if * it did so. * * @param a the left operand of the comparison * @param b the right operand of the comparison * @return true if the left and right operands were switched, false otherwise */ private boolean emitCompare(Value a, Value b) { Variable left; Value right; boolean mirrored; if (LIRValueUtil.isVariable(b)) { left = load(b); right = loadNonConst(a); mirrored = true; } else { left = load(a); right = loadNonConst(b); mirrored = false; } switch (left.getKind().getStackKind()) { case Int: append(new CompareOp(ICMP, left, right)); break; case Long: append(new CompareOp(LCMP, left, right)); break; case Object: append(new CompareOp(ACMP, left, right)); break; case Float: append(new CompareOp(FCMP, left, right)); break; case Double: append(new CompareOp(DCMP, left, right)); break; default: throw GraalInternalError.shouldNotReachHere(); } return mirrored; } @Override public Variable emitIntegerTestMove(Value left, Value right, Value trueValue, Value falseValue) { emitIntegerTest(left, right); Variable result = newVariable(trueValue.getLIRKind()); Kind kind = left.getKind().getStackKind(); append(new CondMoveOp(kind, result, Condition.EQ, load(trueValue), loadNonConst(falseValue))); return result; } @Override protected void emitForeignCall(ForeignCallLinkage linkage, Value result, Value[] arguments, Value[] temps, LIRFrameState info) { long maxOffset = linkage.getMaxCallTargetOffset(); if (SPARCAssembler.isWordDisp30(maxOffset)) { append(new SPARCCall.DirectNearForeignCallOp(linkage, result, arguments, temps, info)); } else { append(new SPARCCall.DirectFarForeignCallOp(linkage, result, arguments, temps, info)); } } @Override public void emitStrategySwitch(SwitchStrategy strategy, Variable key, LabelRef[] keyTargets, LabelRef defaultTarget) { // a temp is needed for loading long and object constants boolean needsTemp = key.getKind() == Kind.Long || key.getKind() == Kind.Object; append(new StrategySwitchOp(strategy, keyTargets, defaultTarget, key, needsTemp ? newVariable(key.getLIRKind()) : Value.ILLEGAL)); } @Override protected void emitTableSwitch(int lowKey, LabelRef defaultTarget, LabelRef[] targets, Value key) { // Making a copy of the switch value is necessary because jump table destroys the input // value Variable tmp = emitMove(key); append(new TableSwitchOp(lowKey, defaultTarget, targets, tmp, newVariable(LIRKind.value(target().wordKind)))); } @Override public Value emitBitCount(Value operand) { Variable result = newVariable(LIRKind.derive(operand).changeType(Kind.Int)); if (operand.getKind().getStackKind() == Kind.Int) { append(new SPARCBitManipulationOp(IPOPCNT, result, asAllocatable(operand), this)); } else { append(new SPARCBitManipulationOp(LPOPCNT, result, asAllocatable(operand), this)); } return result; } @Override public Value emitBitScanForward(Value operand) { Variable result = newVariable(LIRKind.derive(operand).changeType(Kind.Int)); append(new SPARCBitManipulationOp(BSF, result, asAllocatable(operand), this)); return result; } @Override public Value emitBitScanReverse(Value operand) { Variable result = newVariable(LIRKind.derive(operand).changeType(Kind.Int)); if (operand.getKind().getStackKind() == Kind.Int) { append(new SPARCBitManipulationOp(IBSR, result, asAllocatable(operand), this)); } else { append(new SPARCBitManipulationOp(LBSR, result, asAllocatable(operand), this)); } return result; } @Override public Value emitMathAbs(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new BinaryRegConst(DAND, result, asAllocatable(input), Constant.forDouble(Double.longBitsToDouble(0x7FFFFFFFFFFFFFFFL)), null)); return result; } @Override public Value emitMathSqrt(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new SPARCMathIntrinsicOp(SQRT, result, asAllocatable(input))); return result; } @Override public Value emitMathLog(Value input, boolean base10) { Variable result = newVariable(LIRKind.derive(input)); append(new SPARCMathIntrinsicOp(LOG, result, asAllocatable(input))); return result; } @Override public Value emitMathCos(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new SPARCMathIntrinsicOp(COS, result, asAllocatable(input))); return result; } @Override public Value emitMathSin(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new SPARCMathIntrinsicOp(SIN, result, asAllocatable(input))); return result; } @Override public Value emitMathTan(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new SPARCMathIntrinsicOp(TAN, result, asAllocatable(input))); return result; } @Override public Value emitByteSwap(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new SPARCByteSwapOp(this, result, input)); return result; } @Override public Value emitArrayEquals(Kind kind, Value array1, Value array2, Value length) { // TODO Auto-generated method stub throw GraalInternalError.unimplemented(); } @Override public Value emitNegate(Value input) { Variable result = newVariable(LIRKind.derive(input)); switch (input.getKind().getStackKind()) { case Long: append(new Op1Stack(LNEG, result, input)); break; case Int: append(new Op1Stack(INEG, result, input)); break; case Float: append(new Op1Stack(FNEG, result, input)); break; case Double: append(new Op1Stack(DNEG, result, input)); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } @Override public Value emitNot(Value input) { Variable result = newVariable(LIRKind.derive(input)); switch (input.getKind().getStackKind()) { case Int: append(new Op1Stack(INOT, result, input)); break; case Long: append(new Op1Stack(LNOT, result, input)); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } private Variable emitBinary(SPARCArithmetic op, boolean commutative, Value a, Value b, LIRFrameState state) { if (isConstant(b)) { return emitBinaryConst(op, commutative, asAllocatable(a), asConstant(b), state); } else if (commutative && isConstant(a)) { return emitBinaryConst(op, commutative, asAllocatable(b), asConstant(a), state); } else { return emitBinaryVar(op, commutative, asAllocatable(a), asAllocatable(b), state); } } private Variable emitBinaryConst(SPARCArithmetic op, boolean commutative, AllocatableValue a, Constant b, LIRFrameState state) { switch (op) { case IADD: case LADD: case ISUB: case LSUB: case IAND: case LAND: case IOR: case LOR: case IXOR: case LXOR: case IMUL: case LMUL: if (NumUtil.isInt(b.asLong())) { Variable result = newVariable(LIRKind.derive(a, b)); append(new BinaryRegConst(op, result, a, b, state)); return result; } break; } return emitBinaryVar(op, commutative, a, asAllocatable(b), state); } private Variable emitBinaryVar(SPARCArithmetic op, boolean commutative, AllocatableValue a, AllocatableValue b, LIRFrameState state) { Variable result = newVariable(LIRKind.derive(a, b)); if (commutative) { append(new BinaryCommutative(op, result, a, b)); } else { append(new BinaryRegReg(op, result, a, b, state)); } return result; } @Override public Variable emitAdd(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitBinary(IADD, true, a, b, null); case Long: return emitBinary(LADD, true, a, b, null); case Float: return emitBinary(FADD, true, a, b, null); case Double: return emitBinary(DADD, true, a, b, null); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitSub(Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b)); switch (a.getKind().getStackKind()) { case Int: append(new Op2Stack(ISUB, result, a, loadNonConst(b))); break; case Long: append(new Op2Stack(LSUB, result, a, loadNonConst(b))); break; case Float: append(new Op2Stack(FSUB, result, a, loadNonConst(b))); break; case Double: append(new Op2Stack(DSUB, result, a, loadNonConst(b))); break; default: throw GraalInternalError.shouldNotReachHere("missing: " + a.getKind()); } return result; } @Override public Variable emitMul(Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b)); switch (a.getKind().getStackKind()) { case Int: append(new BinaryRegReg(IMUL, result, a, loadNonConst(b))); break; case Long: append(new BinaryRegReg(LMUL, result, a, loadNonConst(b))); break; case Float: append(new Op2Stack(FMUL, result, a, loadNonConst(b))); break; case Double: append(new Op2Stack(DMUL, result, a, loadNonConst(b))); break; default: throw GraalInternalError.shouldNotReachHere("missing: " + a.getKind()); } return result; } @Override public Value emitMulHigh(Value a, Value b) { throw GraalInternalError.unimplemented(); } @Override public Value emitUMulHigh(Value a, Value b) { throw GraalInternalError.unimplemented(); } @Override public Value emitDiv(Value a, Value b, LIRFrameState state) { SPARCArithmetic op = null; switch (a.getKind().getStackKind()) { case Int: op = IDIV; break; case Long: op = LDIV; break; case Float: op = FDIV; break; case Double: op = DDIV; break; default: throw GraalInternalError.shouldNotReachHere("missing: " + a.getKind()); } return emitBinary(op, false, a, b, state); } @Override public Value emitRem(Value a, Value b, LIRFrameState state) { Variable result = newVariable(LIRKind.derive(a, b)); Variable q = null; switch (a.getKind().getStackKind()) { case Int: append(new RemOp(IREM, result, a, loadNonConst(b), state, this)); break; case Long: append(new RemOp(LREM, result, a, loadNonConst(b), state, this)); break; case Float: q = newVariable(LIRKind.value(Kind.Float)); append(new Op2Stack(FDIV, q, a, b)); append(new Unary2Op(F2I, q, q)); append(new Unary2Op(I2F, q, q)); append(new Op2Stack(FMUL, q, q, b)); append(new Op2Stack(FSUB, result, a, q)); break; case Double: q = newVariable(LIRKind.value(Kind.Double)); append(new Op2Stack(DDIV, q, a, b)); append(new Unary2Op(D2L, q, q)); append(new Unary2Op(L2D, q, q)); append(new Op2Stack(DMUL, q, q, b)); append(new Op2Stack(DSUB, result, a, q)); break; default: throw GraalInternalError.shouldNotReachHere("missing: " + a.getKind()); } return result; } @Override public Value emitUDiv(Value a, Value b, LIRFrameState state) { // LIRFrameState state = state(deopting); switch (a.getKind().getStackKind()) { case Int: // emitDivRem(IUDIV, a, b, state); // return emitMove(RAX_I); case Long: // emitDivRem(LUDIV, a, b, state); // return emitMove(RAX_L); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Value emitURem(Value a, Value b, LIRFrameState state) { // LIRFrameState state = state(deopting); switch (a.getKind().getStackKind()) { case Int: // emitDivRem(IUREM, a, b, state); // return emitMove(RDX_I); case Long: // emitDivRem(LUREM, a, b, state); // return emitMove(RDX_L); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitAnd(Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b)); switch (a.getKind().getStackKind()) { case Int: append(new Op2Stack(IAND, result, a, loadNonConst(b))); break; case Long: append(new Op2Stack(LAND, result, a, loadNonConst(b))); break; default: throw GraalInternalError.shouldNotReachHere("missing: " + a.getKind()); } return result; } @Override public Variable emitOr(Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b)); switch (a.getKind().getStackKind()) { case Int: append(new Op2Stack(IOR, result, a, loadNonConst(b))); break; case Long: append(new Op2Stack(LOR, result, a, loadNonConst(b))); break; default: throw GraalInternalError.shouldNotReachHere("missing: " + a.getKind()); } return result; } @Override public Variable emitXor(Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b)); switch (a.getKind().getStackKind()) { case Int: append(new Op2Stack(IXOR, result, a, loadNonConst(b))); break; case Long: append(new Op2Stack(LXOR, result, a, loadNonConst(b))); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } private Variable emitShift(SPARCArithmetic op, Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b).changeType(a.getPlatformKind())); AllocatableValue input = asAllocatable(a); if (isConstant(b)) { append(new BinaryRegConst(op, result, input, asConstant(b), null)); } else { append(new BinaryRegReg(op, result, input, b)); } return result; } @Override public Variable emitShl(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(ISHL, a, b); case Long: return emitShift(LSHL, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitShr(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(ISHR, a, b); case Long: return emitShift(LSHR, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitUShr(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(IUSHR, a, b); case Long: return emitShift(LUSHR, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } private AllocatableValue emitConvertMove(LIRKind kind, AllocatableValue input) { Variable result = newVariable(kind); emitMove(result, input); return result; } private AllocatableValue emitConvert2Op(LIRKind kind, SPARCArithmetic op, AllocatableValue input) { Variable result = newVariable(kind); append(new Unary2Op(op, result, input)); return result; } @Override public Value emitFloatConvert(FloatConvert op, Value inputVal) { AllocatableValue input = asAllocatable(inputVal); Kind fromRegisterKind = null; Kind toRegisterKind = null; SPARCArithmetic conversionInstruction = null; switch (op) { case D2F: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Float), D2F, input); case D2I: fromRegisterKind = Kind.Double; toRegisterKind = Kind.Int; conversionInstruction = D2I; break; case F2L: Variable v = newVariable(LIRKind.derive(inputVal).changeType(Kind.Double)); emitMove(v, input); input = v; case D2L: fromRegisterKind = Kind.Double; toRegisterKind = Kind.Long; conversionInstruction = D2L; break; case F2D: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Double), F2D, input); case F2I: fromRegisterKind = Kind.Float; toRegisterKind = Kind.Int; conversionInstruction = F2I; break; case I2D: // Implemented in two steps, as this consists of sign extension and then move the // bits over to the double register and then convert to double, in fact this does // not generate any overhead in generated code { AllocatableValue tmp = emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Long), I2L, input); return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Double), L2D, tmp); } case I2F: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Float), I2F, input); case L2D: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Double), L2D, input); case L2F: { AllocatableValue tmp = emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Double), L2D, input); return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Float), D2F, tmp); } default: throw GraalInternalError.shouldNotReachHere(); } if (fromRegisterKind != null) { AllocatableValue var = newVariable(LIRKind.derive(inputVal).changeType(toRegisterKind)); emitMove(var, emitConvert2Op(LIRKind.derive(inputVal).changeType(fromRegisterKind), conversionInstruction, input)); return var; } else { throw GraalInternalError.shouldNotReachHere(); } } @Override public Value emitNarrow(Value inputVal, int bits) { if (inputVal.getKind() == Kind.Long && bits <= 32) { return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Int), L2I, asAllocatable(inputVal)); } else { return inputVal; } } @Override public Value emitSignExtend(Value inputVal, int fromBits, int toBits) { assert fromBits <= toBits && toBits <= 64; if (fromBits == toBits) { return inputVal; } else if (toBits > 32) { // sign extend to 64 bits switch (fromBits) { case 8: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Long), B2L, asAllocatable(inputVal)); case 16: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Long), S2L, asAllocatable(inputVal)); case 32: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Long), I2L, asAllocatable(inputVal)); default: throw GraalInternalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); } } else { // sign extend to 32 bits (smaller values are internally represented as 32 bit values) switch (fromBits) { case 8: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Int), B2I, asAllocatable(inputVal)); case 16: return emitConvert2Op(LIRKind.derive(inputVal).changeType(Kind.Int), S2I, asAllocatable(inputVal)); case 32: return inputVal; default: throw GraalInternalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); } } } @Override public Value emitZeroExtend(Value inputVal, int fromBits, int toBits) { assert fromBits <= toBits && toBits <= 64; if (fromBits == toBits) { return inputVal; } else if (fromBits > 32) { assert inputVal.getKind() == Kind.Long; Variable result = newVariable(LIRKind.derive(inputVal).changeType(Kind.Long)); long mask = IntegerStamp.defaultMask(fromBits); append(new BinaryRegConst(SPARCArithmetic.LAND, result, asAllocatable(inputVal), Constant.forLong(mask), null)); return result; } else { assert inputVal.getKind() == Kind.Int || inputVal.getKind() == Kind.Short || inputVal.getKind() == Kind.Byte : inputVal.getKind(); Variable result = newVariable(LIRKind.derive(inputVal).changeType(Kind.Int)); int mask = (int) IntegerStamp.defaultMask(fromBits); Constant constant = Constant.forInt(mask); if (canInlineConstant(constant)) { append(new BinaryRegConst(SPARCArithmetic.IAND, result, asAllocatable(inputVal), constant, null)); } else { Variable maskVar = newVariable(LIRKind.derive(inputVal).changeType(Kind.Int)); emitMove(maskVar, constant); append(new BinaryRegReg(IAND, result, maskVar, (inputVal))); } if (toBits > 32) { Variable longResult = newVariable(LIRKind.derive(inputVal).changeType(Kind.Long)); emitMove(longResult, result); return longResult; } else { return result; } } } @Override public AllocatableValue emitReinterpret(LIRKind to, Value inputVal) { Kind from = inputVal.getKind(); AllocatableValue input = asAllocatable(inputVal); // These cases require a move between CPU and FPU registers: switch ((Kind) to.getPlatformKind()) { case Int: switch (from) { case Float: case Double: return emitConvert2Op(to, MOV_F2I, input); } break; case Long: switch (from) { case Float: case Double: return emitConvert2Op(to, MOV_D2L, input); } break; case Float: switch (from) { case Int: case Long: return emitConvert2Op(to, MOV_I2F, input); } break; case Double: switch (from) { case Int: case Long: return emitConvert2Op(to, MOV_L2D, input); } break; } // Otherwise, just emit an ordinary move instruction. // Instructions that move or generate 32-bit register values also set the upper 32 // bits of the register to zero. // Consequently, there is no need for a special zero-extension move. return emitConvertMove(to, input); } @Override public void emitMembar(int barriers) { int necessaryBarriers = target().arch.requiredBarriers(barriers); if (target().isMP && necessaryBarriers != 0) { append(new MembarOp(necessaryBarriers)); } } @Override public void emitDeoptimize(Value actionAndReason, Value speculation, LIRFrameState state) { append(new ReturnOp(Value.ILLEGAL)); } }