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[diderot] Diff of /branches/charisee/src/compiler/gen/il/low-il.spec
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Diff of /branches/charisee/src/compiler/gen/il/low-il.spec

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revision 1484, Sun Sep 4 14:35:20 2011 UTC revision 1640, Wed Nov 16 02:19:51 2011 UTC
# Line 1  Line 1 
1  # specification of operators for LowIL version of the IR.  Each line (other than comments)  # specification of operators for LowIL version of the IR.  Each line (other than comments)
2  # specifies an operator using four fields, which are separated by ":".  The fields are  # specifies an operator using five fields, which are separated by ":".  The fields are
3  #       name  #       name
4  #       argument type           (optional)  #       argument type           (optional)
5    #       result arity
6  #       arity  #       arity
7  #       comment                 (optional)  #       comment                 (optional)
8  #  #
9  # type-indexed arithmetic operations  # type-indexed arithmetic operations
10  Add : ty : 2 :  Add : ty : 1 : 2 :
11  Sub : ty : 2 :  Sub : ty : 1 : 2 :
12  Mul : ty : 2 :  Mul : ty : 1 : 2 :
13  Div : ty : 2 :  Div : ty : 1 : 2 :
14  Neg : ty : 1 :  Neg : ty : 1 : 1 :
15  Abs : ty : 1 :  Abs : ty : 1 : 1 :
16  LT : ty : 2 :  LT : ty : 1 : 2 :
17  LTE : ty : 2 :  LTE : ty : 1 : 2 :
18  EQ : ty : 2 :  EQ : ty : 1 : 2 :
19  NEQ : ty : 2 :  NEQ : ty : 1 : 2 :
20  GT : ty : 2 :  GT : ty : 1 : 2 :
21  GTE : ty : 2 :  GTE : ty : 1 : 2 :
22  Not : : 1 : boolean negation  Not : : 1 : 1 : boolean negation
23  Max : : 2 :  Max : : 1 : 2 :
24  Min : : 2 :  Min : : 1 : 2 :
25  # Clamp<ty>(lo, hi, x) -- clamps x to the range lo..hi  # Clamp<ty>(lo, hi, x) -- clamps x to the range lo..hi
26  Clamp : ty : 3 : clamp argument to range  Clamp : ty : 1 : 3 : clamp argument to range
27  # Lerp<ty>(a, b, t) -- computes a + t*(b-a)  # Lerp<ty>(a, b, t) -- computes a + t*(b-a)
28  Lerp : ty : 3 : linear interpolation between 0 and 1  Lerp : ty : 1 : 3 : linear interpolation between 0 and 1
29  #  #
30  ### vector operations  ### vector operations
31  # Dot<n>(u, v)  -- computes dot product of u and v; n specifies u and v's arity  # Dot<n>(u, v)  -- computes dot product of u and v; n specifies u and v's arity
32  Dot : int : 2 :  Dot : int : 1 : 2 :
33  # MulVecMat<m,n>(v, M) -- computes v*M, where M is an mxn-matrix and v is an m-vector  # MulVecMat<m,n>(v, M) -- computes v*M, where M is an mxn-matrix and v is an m-vector
34  MulVecMat : int * int : 2 : vector times matrix multiplication  MulVecMat : int * int : 1 : 2 : vector times matrix multiplication
35  # MulMatVec<m,n>(M, v) -- computes M*v, where M is an mxn-matrix and v is a n-vector  # MulMatVec<m,n>(M, v) -- computes M*v, where M is an mxn-matrix and v is a n-vector
36  MulMatVec : int * int : 2 : matrix times vector multiplication (type is matrix type)  MulMatVec : int * int : 1 : 2 : matrix times vector multiplication (type is matrix type)
37  # MulMatMat<m,n,p>(M, N) -- computes M*N, where M is an mxn-matrix and N is an nxp-matrix  # MulMatMat<m,n,p>(M, N) -- computes M*N, where M is an mxn-matrix and N is an nxp-matrix
38  MulMatMat : int * int * int : 2 : matrix times matrix multiplication  MulMatMat : int * int * int : 1 : 2 : matrix times matrix multiplication
39  # Cross(u, v)   -- computes cross product of u and v  # Cross(u, v)   -- computes cross product of u and v
40  Cross : : 2 :  Cross : : 1 : 2 :
 # Select<ty,i>(u)  -- select ith element of vector u; ty specifies u's type (IVec or Vec)  
 Select : ty * int : 1 :  
41  # Norm<ty>(x) -- returns the norm of the tensor x, which has type ty  # Norm<ty>(x) -- returns the norm of the tensor x, which has type ty
42  Norm : ty : 1 :  Norm : ty : 1 : 1 :
43  # Normalize<n>(v)   -- returns the unit vector in direction u; n is the length ov u  # Normalize<n>(v)   -- returns the unit vector in direction u; n is the length ov u
44  Normalize : int : 1 :  Normalize : int : 1 : 1 :
45  # Scale<ty>(s,u) -- multiply scalar s time tensor u; ty specifies u's type  # Scale<ty>(s,u) -- multiply scalar s time tensor u; ty specifies u's type
46  Scale : ty : 2 : scalar*tensor multiplication  Scale : ty : 1 : 2 : scalar*tensor multiplication
47  PrincipleEvec : ty : 2 : principle eigenvector; ty is result vector type  PrincipleEvec : ty : 1 : 2 : principle eigenvector; ty is result vector type
48    EigenVecs2x2 : : 1 : 1 : Eigen vectors and values for 2x2 matrix
49    EigenVecs3x3 : : 1 : 1 : Eigen vectors and values for 3x3 matrix
50    EigenVals2x2 : : 1 : 1 : Eigen values for 2x2 matrix
51    EigenVals3x3 : : 1 : 1 : Eigen values for 3x3 matrix
52  # Identity<n>() -- nxn identity matrix  # Identity<n>() -- nxn identity matrix
53  Identity : int : 0 : identity matrix  Identity : int : 1 : 0 : identity matrix
54  # Zero<ty>() -- zero tensor  # Zero<ty>() -- zero tensor
55  Zero : ty : 0 : identity matrix  Zero : ty : 1 : 0 : identity matrix
56  Subscript : ty : 2 :  #
57    # operations on sequences
58    # Select<ty,i>(u)  -- select ith element of tuple; ty is tuple type
59    Select : ty * int : 1 : 1 :
60    # Index<ty,i>(u)  -- select ith element of sequence; ty is sequence type
61    Index : ty * int : 1 : 1 :
62    # Subscript<ty>(u,i) -- select ith element of sequence; ty is type of sequence
63    Subscript : ty : 1 : 2 :
64  #  #
65  # compute integral parts of reals  # compute integral parts of reals
66  Ceiling : int : 1 : compute real ceiling of a vector  Ceiling : int : 1 : 1 : compute real ceiling of a vector
67  Floor : int : 1 : compute real floor of a vector  Floor : int : 1 : 1 : compute real floor of a vector
68  Round : int : 1 : compute real rounding to nearest integral real of a vector  Round : int : 1 : 1 : compute real rounding to nearest integral real of a vector
69  Trunc : int : 1 : compute real truncation to integral real of a vector  Trunc : int : 1 : 1 : compute real truncation to integral real of a vector
70  #  #
71  ### conversions; the real to int forms are vector ops  ### conversions; the real to int forms are vector ops
72  IntToReal : : 1 :  IntToReal : : 1 : 1 :
73  RealToInt : int : 1 : cast real vector to int vector  RealToInt : int : 1 : 1 : cast real vector to int vector
74  #  #
75  ### image/kernel operations  ### image/kernel operations
76  # ImageAddress<I>(V) -- the base address of an image with info I  # ImageAddress<I>(V) -- the base address of an image with info I
77  ImageAddress : ImageInfo.info : 1 : image base address  ImageAddress : ImageInfo.info : 1 : 1 : image base address
78  # LoadVoxels<I,n>(a) -- load a vector of n voxels from the address a  # LoadVoxels<I,n>(a) -- load a vector of n voxels from the address a
79  LoadVoxels : ImageInfo.info * int : 1 : load a vector of voxel values from an address  LoadVoxels : ImageInfo.info * int : 1 : 1 : load a vector of voxel values from an address
80  # PosToImgSpace<I>(V,u) -- transforms the world-space position u into the image-space specified by V.  # PosToImgSpace<I>(V,u) -- transforms the world-space position u into the image-space specified by V.
81  PosToImgSpace : ImageInfo.info : 2 : transform a world-space position to image-space  PosToImgSpace : ImageInfo.info : 1 : 2 : transform a world-space position to image-space
82  # TensorToWorldSpace<I,ty>(V,u) -- transforms the image-space tensor u to from V's image space to world space  # TensorToWorldSpace<I,ty>(V,u) -- transforms the image-space tensor u to from V's image space to world space
83  TensorToWorldSpace : ImageInfo.info * ty : 2 : transform an image-space gradient to world-space  TensorToWorldSpace : ImageInfo.info * ty : 1 : 2 : transform an image-space gradient to world-space
84  LoadImage : ImageInfo.info : 1 : image-file loading  LoadImage : ImageInfo.info : 1 : 1 : image-file loading
85  # Inside<I,s>(u,V) -- tests to see if image-space position u is inside the volume  # Inside<I,s>(u,V) -- tests to see if image-space position u is inside the volume
86  # occupied by the image V.  I is the image info and s is the border width  # occupied by the image V.  I is the image info and s is the border width
87  Inside : ImageInfo.info * int : 2 :  Inside : ImageInfo.info * int : 1 : 2 :
88  #  #
89  # inputs  # inputs
90  Input            : ty * string * string  : 0 :  Input            : ty * string * string  : 1 : 0 :
91  InputWithDefault : ty * string * string  : 1 :  InputWithDefault : ty * string * string  : 1 : 1 :
92    #
93    # printing support for debugging
94    Print : tys : 0 : * : print strings

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