Andi Drebes bc75831c86 feat(compiler): Add passes for tiling of HLFHELinalg.matmul_eint_int ...

Add two passes related to the tiling of `HLFHELinalg.matmul_eint_int`
operations.

The `HLFHELinalgTilingMarker` pass takes a vector of tile sizes and
adds an integer array attribute "tile-sizes" to each instance of
`HLFHELinalg.matmul_eint_int`, e.g.,

  "HLFHELinalg.matmul_eint_int"(%arg0, %arg1) {"tile-sizes" = [2, 2, 2]} :
    (tensor<4x2x!HLFHE.eint<6>>, tensor<2x2xi7>) -> tensor<4x2x!HLFHE.eint<6>>

The `HLFHELinalgTiling` performs the actual tiling of each
`HLFHELinalg.matmul_eint_int` operation marked with a "tile-sizes"
attribute. The tiling preserves the level of abstraction of
HLFHELinalg and is implemented as a perfect loop nest of SCF for loops
with a `HLFHELinalg.matmul_eint_int` in the body.

For example,

  func @main(%arg0: tensor<4x2x!HLFHE.eint<6>>, %arg1: tensor<2x2xi7>)
    -> tensor<4x2x!HLFHE.eint<6>>
  {
    %0 = "HLFHELinalg.matmul_eint_int"(%arg0, %arg1) {"tile-sizes" = [2, 2, 2]} :
           (tensor<4x2x!HLFHE.eint<6>>, tensor<2x2xi7>) -> tensor<4x2x!HLFHE.eint<6>>
    return %0 : tensor<4x2x!HLFHE.eint<6>>
  }

becomes:

  func @main(%arg0: tensor<4x2x!HLFHE.eint<6>>, %arg1: tensor<2x2xi7>)
    -> tensor<4x2x!HLFHE.eint<6>>
  {
    %c2 = arith.constant 2 : index
    %c0 = arith.constant 0 : index
    %c4 = arith.constant 4 : index

    %0 = "HLFHELinalg.zero"() : () -> tensor<4x2x!HLFHE.eint<6>>
    %1 = scf.for %arg2 = %c0 to %c4 step %c2 iter_args(%arg3 = %0)
           -> (tensor<4x2x!HLFHE.eint<6>>) {
      %2 = scf.for %arg4 = %c0 to %c2 step %c2 iter_args(%arg5 = %arg3)
             -> (tensor<4x2x!HLFHE.eint<6>>) {
        %3 = scf.for %arg6 = %c0 to %c2 step %c2 iter_args(%arg7 = %arg5)
	       -> (tensor<4x2x!HLFHE.eint<6>>) {
          %4 = tensor.extract_slice %arg0[%arg2, %arg4] [2, 2] [1, 1] :
	         tensor<4x2x!HLFHE.eint<6>> to tensor<2x2x!HLFHE.eint<6>>
          %5 = tensor.extract_slice %arg1[%arg4, %arg6] [2, 2] [1, 1] :
	         tensor<2x2xi7> to tensor<2x2xi7>
          %6 = tensor.extract_slice %arg7[%arg2, %arg6] [2, 2] [1, 1] :
	         tensor<4x2x!HLFHE.eint<6>> to tensor<2x2x!HLFHE.eint<6>>

          %7 = "HLFHELinalg.matmul_eint_int"(%4, %5) :
	         (tensor<2x2x!HLFHE.eint<6>>, tensor<2x2xi7>)
		 -> tensor<2x2x!HLFHE.eint<6>>

          %8 = "HLFHELinalg.add_eint"(%6, %7) :
	         (tensor<2x2x!HLFHE.eint<6>>, tensor<2x2x!HLFHE.eint<6>>)
		 -> tensor<2x2x!HLFHE.eint<6>>

          %9 = tensor.insert_slice %8 into %arg7[%arg2, %arg6] [2, 2] [1, 1] :
	         tensor<2x2x!HLFHE.eint<6>> into tensor<4x2x!HLFHE.eint<6>>

          scf.yield %9 : tensor<4x2x!HLFHE.eint<6>>
        }
        scf.yield %3 : tensor<4x2x!HLFHE.eint<6>>
      }
      scf.yield %2 : tensor<4x2x!HLFHE.eint<6>>
    }
    return %1 : tensor<4x2x!HLFHE.eint<6>>
  }

Only full tiles are supported, i.e., the size of the dimensions of the
operands must be a multiple of the respective tile sizes.

2021-12-17 16:09:59 +01:00

..

HLFHE

enhance(compiler): Remove the restriction of analysis on the HLFHELinalg.dot

2021-12-07 11:17:33 +01:00

HLFHELinalg

feat(compiler): Add passes for tiling of HLFHELinalg.matmul_eint_int

2021-12-17 16:09:59 +01:00

LowLFHE

enhance(compiler/lowlfhe): Give the runtime context as function argument instead of a global variable (close #195)

2021-12-02 10:56:47 +01:00

MidLFHE

typo: bad function name

2021-11-10 15:24:31 +01:00

CMakeLists.txt

feat(compiler): Introduce the HLFHELinalg dialect and a first operator HLFHELinalg.add_eint_int

2021-10-29 12:16:41 +02:00