MachineSpecificIRIA (Jikes RVM API)

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org.jikesrvm.compilers.opt.ir.ia32
Class MachineSpecificIRIA

java.lang.Object
  org.jikesrvm.compilers.opt.ir.MachineSpecificIR
      org.jikesrvm.compilers.opt.ir.ia32.MachineSpecificIRIA

Direct Known Subclasses:: MachineSpecificIRIA.EM64T, MachineSpecificIRIA.IA32

public abstract class MachineSpecificIRIA
extends MachineSpecificIR
extends MachineSpecificIR

Wrappers around IA32-specific IR common to both 32 & 64 bit

Nested Class Summary
`static class`	`MachineSpecificIRIA.EM64T` Wrappers around EMT64-specific IR (64-bit specific)
`static class`	`MachineSpecificIRIA.IA32` Wrappers around IA32-specific IR (32-bit specific)

Constructor Summary
`MachineSpecificIRIA()`

Method Summary
`int`	`getBURSManagedFPRValue(Operand operand)`
`boolean`	`isAdviseESP(Operator operator)`
`boolean`	`isBURSManagedFPROperand(Operand operand)`
`boolean`	`isConditionOperand(Operand operand)`
`boolean`	`isFClear(Operator operator)`
`boolean`	`isFNInit(Operator operator)`
`boolean`	`isHandledByRegisterUnknown(char opcode)`
`boolean`	`mutateFMOVs(LiveIntervalElement live, Register register, int dfnbegin, int dfnend)` Mutate FMOVs that end live ranges
`void`	`mutateMIRCondBranch(Instruction cb)`
`void`	`rewriteFPStack(IR ir)` Rewrite floating point registers to reflect changes in stack height induced by BURS.

Methods inherited from class org.jikesrvm.compilers.opt.ir.MachineSpecificIR
`canFoldNullCheckAndLoad, isPowerPCTrapOperand, mayEscapeMethod, mayEscapeThread`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

MachineSpecificIRIA

public MachineSpecificIRIA()

Method Detail

isConditionOperand

public boolean isConditionOperand(Operand operand)

Specified by:: isConditionOperand in class MachineSpecificIR

mutateMIRCondBranch

public void mutateMIRCondBranch(Instruction cb)

Specified by:: mutateMIRCondBranch in class MachineSpecificIR

isHandledByRegisterUnknown

public boolean isHandledByRegisterUnknown(char opcode)

Specified by:: isHandledByRegisterUnknown in class MachineSpecificIR

isAdviseESP

public boolean isAdviseESP(Operator operator)

Overrides:: isAdviseESP in class MachineSpecificIR

isFClear

public boolean isFClear(Operator operator)

Overrides:: isFClear in class MachineSpecificIR

isFNInit

public boolean isFNInit(Operator operator)

Overrides:: isFNInit in class MachineSpecificIR

isBURSManagedFPROperand

public boolean isBURSManagedFPROperand(Operand operand)

Overrides:: isBURSManagedFPROperand in class MachineSpecificIR

getBURSManagedFPRValue

public int getBURSManagedFPRValue(Operand operand)

Overrides:: getBURSManagedFPRValue in class MachineSpecificIR

mutateFMOVs

public boolean mutateFMOVs(LiveIntervalElement live,
                           Register register,
                           int dfnbegin,
                           int dfnend)

Mutate FMOVs that end live ranges

Overrides:: mutateFMOVs in class MachineSpecificIR

Parameters:: live - The live interval for a basic block/reg pair; register - The register for this live interval; dfnbegin - The (adjusted) begin for this interval; dfnend - The (adjusted) end for this interval

rewriteFPStack

public void rewriteFPStack(IR ir)

Rewrite floating point registers to reflect changes in stack height induced by BURS. Side effect: update the fpStackHeight in MIRInfo

Overrides:: rewriteFPStack in class MachineSpecificIR