at.dms.kjc.rstream
Class Util

java.lang.Object
  at.dms.util.Utils
      at.dms.kjc.rstream.Util

All Implemented Interfaces:

DeepCloneable, Serializable

public class Util
extends Utils

This class contains various function used by multiple passes

See Also:

Serialized Form

Field Summary

static String	CSTIFPVAR
static String	CSTIINTVAR
static String	CSTOFPVAR
static String	CSTOINTVAR

Fields inherited from class at.dms.util.Utils

EMPTY_LIST, getForLoopCallers

Constructor Summary

Util()

Method Summary

static boolean	countMe(SIRFilter filter)
static CType	getBaseType(CType type) get the base type of a type, so for array's return the element type
static int	getItemsPushed(FlatNode from, FlatNode to) return the number of items pushed from *from* to *to* on each iteration of *from*.
static int	getTypeSize(CType type)
static JExpression	getVar(JArrayAccessExpression expr) get the variable access in an array access expression
static boolean	isIntOne(JExpression exp) return true if this exp is a JIntLiteral and the int value is 1
static boolean	isIntZero(JExpression exp) return true if this exp is a JIntLiteral and the int value is 0
static String	JPhylumToC(JPhylum top) convert an IR tree to a string of C code
static int[]	makeInt(JExpression[] dims) turn an array of JIntLiterals into an array of ints, fail if not JIntLiterals
static String[]	makeString(JExpression[] dims) turn an array of expressions to any array of strings using FlatIRToRS
static JExpression	newIntAddExpr(JExpression left, JExpression right) construct a new JAddExpression, *left* + *right* where both are of type int.
static JExpression	newIntMultExpr(JExpression left, JExpression right) construct a new JMultExpression, *left* * *right* where both are of type int.
static JExpression	newIntSubExpr(JExpression left, JExpression right) construct a new JMinusExpression, *left* - *right* where both are of type int.
static int	nextPow2(int i)

Methods inherited from class at.dms.util.Utils

asPercent, cellMathEquivalent, cMathEquivalent, cppMathEquivalent, deepClone, deepCloneInto, equalArrays, fail, getEnvironmentVariable, getExpression, hasPeeks, initArray, initArray, initLiteralArray, intArrayToList, isMathMethod, isUniform, kopi_assert, kopi_assert, makeCountdownForLoop, makeDotFileName, makeForLoop, makeForLoop, makeForLoop, makeForLoopFieldIndex, makeForLoopLocalIndex, passThruParens, peelMarkers, popBeforePeek, readFile, removeUnusedPops, replaceAll, setupDotFileName, simplifyMathMethod, splitQualifiedName, splitQualifiedName, toArray, toIntArray, toVector, voidToInt, writeFile

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CSTOINTVAR

public static String CSTOINTVAR

CSTOFPVAR

public static String CSTOFPVAR

CSTIFPVAR

public static String CSTIFPVAR

CSTIINTVAR

public static String CSTIINTVAR

Constructor Detail

Util

public Util()

Method Detail

countMe

public static boolean countMe(SIRFilter filter)

nextPow2

public static int nextPow2(int i)

getTypeSize

public static int getTypeSize(CType type)

getBaseType

public static CType getBaseType(CType type)

get the base type of a type, so for array's return the element type

getVar

public static JExpression getVar(JArrayAccessExpression expr)

get the variable access in an array access expression

makeString

public static String[] makeString(JExpression[] dims)

turn an array of expressions to any array of strings using FlatIRToRS

makeInt

public static int[] makeInt(JExpression[] dims)

turn an array of JIntLiterals into an array of ints, fail if not JIntLiterals

getItemsPushed

public static int getItemsPushed(FlatNode from,
                                 FlatNode to)

return the number of items pushed from *from* to *to* on each iteration of *from*. If from is a splitter take this into account

JPhylumToC

public static String JPhylumToC(JPhylum top)

convert an IR tree to a string of C code

newIntAddExpr

public static JExpression newIntAddExpr(JExpression left,
                                        JExpression right)

construct a new JAddExpression, *left* + *right* where both are of type int. Try to fold constants

newIntMultExpr

public static JExpression newIntMultExpr(JExpression left,
                                         JExpression right)

construct a new JMultExpression, *left* * *right* where both are of type int. Try to fold constants

newIntSubExpr

public static JExpression newIntSubExpr(JExpression left,
                                        JExpression right)

construct a new JMinusExpression, *left* - *right* where both are of type int. Try to fold constants

isIntZero

public static boolean isIntZero(JExpression exp)

return true if this exp is a JIntLiteral and the int value is 0

isIntOne

public static boolean isIntOne(JExpression exp)

return true if this exp is a JIntLiteral and the int value is 1