Added E_Input and E_Field constructors to Simple AST

  Reorganize stuff to do with images, kernels, and fields into its own directory.

  Reorganizing source

  Working on translateion

  Added Var substructure to SSAFn

  Starting to add utility code for SSA representations

  Working on translation to HighIL

  Update

  Adding operations for fields

  Working on translation to IL

  Added Tbl structure

  Working on translation to IL

  Minor work on translation

  Working on translation to HighIL

  Working on translation to IL

  Working on IL representation

  Add generator for IL operator structures.

  Renamed internal variable input to optInput and added input variable.

  Working on translation

  Working on translation to HighIL

  Added toType, toDiff, toShape, and toDim functions

  Added file

  Working on translation to HighIL

  Simplified AST code now uses default input values when no input is given.

  Switch the translate code to take simple AST as its input type

  Added pretty printing for simplified AST

  Adding simplify pass to driver

  Cleanup and simplification of AST representation

  New file: working on pretty printing for Simple AST

  Adding simple-ast representation

  Restrict polymorphism to operators/functions.

  Split function and variable namespaces and add notion of restricted operations
  that cannot appear inside actor or initialization code.

  Working on translation to HighIL

  Added comment

  New file

  Adding equality tests and hashing support

  Added output state variables and stabilize methods

  Added kernel printing code

  Debugging kernel support using test driver

fixed bug that allowed named space to remain

  Added min and max on reals.

  Added RawTypes module

  Starting to write a test driver for the kernel code

  Made kernel type abstract and added derivative cache.

  Added toReal function

  Working on IR

  Added variable sets and maps

  Working on IL representation

  Merging image-info into IL directory

  merge image-info directory into the IL directory

  Added normalize function

  Working on IL

  Parameterize the SSA representation over the operators

  Fixed syntax error

added -h and now respects per-axis spacing

  New file

  Adding configuration support

  Fix syntax errors

  Adding makefile for dnorm program

  Added compare to Rational

  Switched kernels to use rational coefficients and added definitions of common
  kernels.

  Fix bugs

  Working on rational numbers for the kernels

  New directory to hold tool for getting NRRD-file summary info

  Moved to src/compiler

  Restore Gordon's edits

  Moving compiler sources into src/compiler

  Moving compiler sources into src/compiler

clarified restriction between dimension and space dimension

  Adding file

info about restricted NRRD format coming out of dnorm program

  Adding image-info directory

  Bug fixes

  Changed grammar to restrict the type of parameters to ValueType

  Better error messages

  Code reorg and added type arguments to variable printing in ASTPP.

  export more functions from TypeUtil

  Working on the pretty printer

  Added placeholder for pretty-printing AST after typechecking

  Fixed some bugs in the basis

  Working on typechecker

  Working on typechecker

  Added new syntax for tensor-value construction and more work on typechecker.

  Working on typechecker

  More work on the typechecker

  Working on typechecker

  Working on typechecker

  Working on typechecker

  Working on typechecker

  Rosking on type checker

  Move env.sml to env directory

  New directory

  Propoagating changes to meta variables

  Refined meta-variable representation

  Comment out raw types, which are not used yet.

  Working on typechecker

  Working on typechecker

  Working on typechecker

  Starting to write a typechecker

  Working on Basis

  Added TypeVar module

  Working on typechecking for Diderot

  edit comments

  Fix representation of types

  Some work on typing the basis

  Added names from tracto example

added tent kernel

  Fixed lexer bug

  Changed grammar to use different type syntax

  Starting to work on the basis environment

  Added norm syntax

  Added NaNs and infinities

  Added intialization syntax

  Parser hacking

  Added value constructor syntax

  Fixing parser/scanner bugs

  Remove CM files

  New directory

  New file

  Type-error fixes

  Working on Diderot parser

  Adding sources.cm and fixing some type errors

  More parser hacking

  Working on Diderot parser

  Working on Diderot parser

  Working on Diderot parser

  Working on grammar

  Working on Diderot grammar

  Working on Diderot grammar

  Starting to work on parser for Diderot

  comments and minor edits

  More work on type system

  More work on types; added well-formedness check

  Starting to work on internal-language representation of types.

  Initial commits