UniformlyGeneratedGVN (Jikes RVM API)

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org.jikesrvm.compilers.opt.ssa
Class UniformlyGeneratedGVN

java.lang.Object
  org.jikesrvm.compilers.opt.ssa.UniformlyGeneratedGVN

class UniformlyGeneratedGVN
extends Object
extends Object

This class implements index equivalence via global value numbering and 'uniformly generated expressions'. See EURO-PAR 01 paper for more details.

Field Summary
`(package private) static boolean`	`DEBUG`

Constructor Summary
`UniformlyGeneratedGVN()`

Method Summary
`static void`	`perform(IR ir)` Compute Index Equivalence with uniformly generated global value numbers.

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

Field Detail

DEBUG

static final boolean DEBUG

See Also:: Constant Field Values

Constructor Detail

UniformlyGeneratedGVN

UniformlyGeneratedGVN()

Method Detail

perform

public static void perform(IR ir)

Compute Index Equivalence with uniformly generated global value numbers.

PRECONDITIONS: SSA form, register lists computed, SSA bit computed.

POSTCONDITION: ir.HIRInfo.uniformlyGeneratedValueNumbers holds results of the analysis. Does not modify the IR in any other way.

Parameters:: ir - the governing IR