InliningBlockLE (Jikes RVM API)

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org.jikesrvm.compilers.opt.bc2ir
Class InliningBlockLE

java.lang.Object
  org.jikesrvm.compilers.opt.bc2ir.BasicBlockLE
      org.jikesrvm.compilers.opt.bc2ir.InliningBlockLE

final class InliningBlockLE
extends BasicBlockLE
extends BasicBlockLE

Extend BasicBlockLE to support inlining during IR generation.

Field Summary
`(package private) BasicBlockLE`	`epilogueBBLE`
`(package private) GenerationContext`	`gc`

Fields inherited from class org.jikesrvm.compilers.opt.bc2ir.BasicBlockLE
`block, fallThrough, handlers, high, left, localState, low, max, parent, right, stackState`

Constructor Summary
`InliningBlockLE(GenerationContext c, BasicBlockLE bble)`

Method Summary
`(package private) void`	`deleteAllOutEdges()` delete the outgoing CFG edges from all basic blocks in the callee (gc.cfg).
`String`	`toString()` Returns a string representation of this BBLE.

Methods inherited from class org.jikesrvm.compilers.opt.bc2ir.BasicBlockLE
`addHandler, clearGenerated, clearInCodeOrder, clearLocalKnown, clearSelfRegen, clearStackKnown, copyIntoLocalState, copyLocalState, genState, isBlack, isGenerated, isInCodeOrder, isLocalKnown, isReadyToGenerate, isRed, isSelfRegen, isStackKnown, setBlack, setGenerated, setInCodeOrder, setLocalKnown, setRed, setSelfRegen, setStackKnown`

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

Field Detail

gc

final GenerationContext gc

epilogueBBLE

final BasicBlockLE epilogueBBLE

Constructor Detail

InliningBlockLE

InliningBlockLE(GenerationContext c,
                BasicBlockLE bble)

Method Detail

toString

public String toString()

Description copied from class: BasicBlockLE

Returns a string representation of this BBLE.

Overrides:: toString in class BasicBlockLE

deleteAllOutEdges

void deleteAllOutEdges()

delete the outgoing CFG edges from all basic blocks in the callee (gc.cfg). This is used when the BBLE preceeding the inlined method block needs to be regenerated, thus forcing us to discard the callee IR (which may contains control flow links to the caller IR because of exception handlers).

TODO: One might be able to do this more efficiently by keeping track of the exposed edges in the generation context and commiting them once the top level generation completes. Probably not worth it, since we expect this method to be called very infrequently.