com.oracle.graal.lir.sparc

Interface SPARCTailDelayedLIRInstruction

All Known Implementing Classes:

SPARCArithmetic.BinaryRegConst, SPARCArithmetic.BinaryRegReg, SPARCArithmetic.RemOp, SPARCArithmetic.Unary2Op, SPARCByteSwapOp, SPARCHotSpotCRuntimeCallPrologueOp, SPARCMathIntrinsicOp, SPARCMove.LoadAddressOp, SPARCMove.LoadConstantFromTable, SPARCMove.LoadInlineConstant, SPARCMove.LoadOp, SPARCMove.MembarOp, SPARCMove.Move, SPARCMove.MoveFpGp, SPARCMove.NullCheckOp, SPARCMove.StackLoadAddressOp, SPARCMove.StoreConstantOp, SPARCMove.StoreOp

public interface SPARCTailDelayedLIRInstruction

Implementors of this interface are able to place its last instruction into the delay slot of a SPARCDelayedControlTransfer instruction. The implementor has to do following steps to emit code into the delay slot for the DelayedControlTransfer instruction:

1. Emit everything up to the second last instruction.
2. Call SPARCDelayedControlTransfer.emitControlTransfer(com.oracle.graal.lir.asm.CompilationResultBuilder, SPARCMacroAssembler) to let the DelayedControlTransfer instruction emit its own code (But must not stuff the delay slot with Nop)
3. emit the last instruction for this LIRInstruction

Note: If this instruction decides not to use the delay slot, it can skip the call of SPARCDelayedControlTransfer.emitControlTransfer(com.oracle.graal.lir.asm.CompilationResultBuilder, SPARCMacroAssembler) . The DelayedControlTransfer instruction will emit the code just with Nop in the delay slot.

Method Summary

Modifier and Type	Method and Description
void	setDelayedControlTransfer(SPARCDelayedControlTransfer holder)

Method Detail

setDelayedControlTransfer

void setDelayedControlTransfer(SPARCDelayedControlTransfer holder)