8806311bb7
This patch adds the erfc op to the math dialect. It also does lowering of the math.erfc op to libm calls. There is also a f32 polynomial approximation for the function based on https://stackoverflow.com/questions/35966695/vectorizable-implementation-of-complementary-error-function-erfcf This is in turn based on M. M. Shepherd and J. G. Laframboise, "Chebyshev Approximation of (1+2x)exp(x^2)erfc x in 0 <= x < INF", Mathematics of Computation, Vol. 36, No. 153, January 1981, pp. 249-253. The code has a ULP error less than 3, which was tested, and MLIR test values were verified against the C implementation.
143 lines
4.4 KiB
VimL
143 lines
4.4 KiB
VimL
" Vim syntax file
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" Language: mlir
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" Maintainer: The MLIR team, http://github.com/tensorflow/mlir/
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" Version: $Revision$
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" Some parts adapted from the LLVM vim syntax file.
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if version < 600
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syntax clear
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elseif exists("b:current_syntax")
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finish
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endif
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syn case match
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" Types.
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"
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syn keyword mlirType index f16 f32 f64 bf16
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" Signless integer types.
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syn match mlirType /\<i\d\+\>/
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" Unsigned integer types.
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syn match mlirType /\<ui\d\+\>/
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" Signed integer types.
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syn match mlirType /\<si\d\+\>/
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" Elemental types inside memref, tensor, or vector types.
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syn match mlirType /x\s*\zs\(bf16|f16\|f32\|f64\|i\d\+\|ui\d\+\|si\d\+\)/
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" Shaped types.
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syn match mlirType /\<memref\ze\s*<.*>/
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syn match mlirType /\<tensor\ze\s*<.*>/
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syn match mlirType /\<vector\ze\s*<.*>/
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" vector types inside memref or tensor.
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syn match mlirType /x\s*\zsvector/
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" Operations.
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" TODO: this list is not exhaustive.
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syn keyword mlirOps alloc alloca addf addi and call call_indirect cmpf cmpi
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syn keyword mlirOps constant dealloc divf dma_start dma_wait dim exp
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syn keyword mlirOps getTensor index_cast load log memref_cast
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syn keyword mlirOps memref_shape_cast mulf muli negf powf prefetch rsqrt sitofp
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syn keyword mlirOps splat store select sqrt subf subi subview tanh
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syn keyword mlirOps view
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" Math ops.
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syn match mlirOps /\<math\.erf\>/
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syn match mlirOps /\<math\.erfc\>/
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" Affine ops.
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syn match mlirOps /\<affine\.apply\>/
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syn match mlirOps /\<affine\.dma_start\>/
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syn match mlirOps /\<affine\.dma_wait\>/
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syn match mlirOps /\<affine\.for\>/
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syn match mlirOps /\<affine\.if\>/
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syn match mlirOps /\<affine\.load\>/
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syn match mlirOps /\<affine\.parallel\>/
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syn match mlirOps /\<affine\.prefetch\>/
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syn match mlirOps /\<affine\.store\>/
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syn match mlirOps /\<scf\.execute_region\>/
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syn match mlirOps /\<scf\.for\>/
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syn match mlirOps /\<scf\.if\>/
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syn match mlirOps /\<scf\.yield\>/
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" TODO: dialect name prefixed ops (llvm or std).
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" Keywords.
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syn keyword mlirKeyword
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\ affine_map
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\ affine_set
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\ dense
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\ else
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\ func
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\ module
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\ return
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\ step
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\ to
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" Misc syntax.
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syn match mlirNumber /-\?\<\d\+\>/
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" Match numbers even in shaped types.
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syn match mlirNumber /-\?\<\d\+\ze\s*x/
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syn match mlirNumber /x\s*\zs-\?\d\+\ze\s*x/
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syn match mlirFloat /-\?\<\d\+\.\d*\(e[+-]\d\+\)\?\>/
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syn match mlirFloat /\<0x\x\+\>/
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syn keyword mlirBoolean true false
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" Spell checking is enabled only in comments by default.
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syn match mlirComment /\/\/.*$/ contains=@Spell
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syn region mlirString start=/"/ skip=/\\"/ end=/"/
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syn match mlirLabel /[-a-zA-Z$._][-a-zA-Z$._0-9]*:/
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" Prefixed identifiers usually used for ssa values and symbols.
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syn match mlirIdentifier /[%@][a-zA-Z$._-][a-zA-Z0-9$._-]*/
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syn match mlirIdentifier /[%@]\d\+\>/
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" Prefixed identifiers usually used for blocks.
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syn match mlirBlockIdentifier /\^[a-zA-Z$._-][a-zA-Z0-9$._-]*/
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syn match mlirBlockIdentifier /\^\d\+\>/
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" Prefixed identifiers usually used for types.
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syn match mlirTypeIdentifier /![a-zA-Z$._-][a-zA-Z0-9$._-]*/
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syn match mlirTypeIdentifier /!\d\+\>/
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" Prefixed identifiers usually used for attribute aliases and result numbers.
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syn match mlirAttrIdentifier /#[a-zA-Z$._-][a-zA-Z0-9$._-]*/
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syn match mlirAttrIdentifier /#\d\+\>/
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" Syntax-highlight lit test commands and bug numbers.
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syn match mlirSpecialComment /\/\/\s*RUN:.*$/
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syn match mlirSpecialComment /\/\/\s*CHECK:.*$/
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syn match mlirSpecialComment "\v\/\/\s*CHECK-(NEXT|NOT|DAG|SAME|LABEL):.*$"
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syn match mlirSpecialComment /\/\/\s*expected-error.*$/
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syn match mlirSpecialComment /\/\/\s*expected-remark.*$/
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syn match mlirSpecialComment /;\s*XFAIL:.*$/
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syn match mlirSpecialComment /\/\/\s*PR\d*\s*$/
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syn match mlirSpecialComment /\/\/\s*REQUIRES:.*$/
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if version >= 508 || !exists("did_c_syn_inits")
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if version < 508
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let did_c_syn_inits = 1
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command -nargs=+ HiLink hi link <args>
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else
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command -nargs=+ HiLink hi def link <args>
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endif
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HiLink mlirType Type
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HiLink mlirOps Statement
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HiLink mlirNumber Number
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HiLink mlirComment Comment
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HiLink mlirString String
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HiLink mlirLabel Label
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HiLink mlirKeyword Keyword
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HiLink mlirBoolean Boolean
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HiLink mlirFloat Float
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HiLink mlirConstant Constant
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HiLink mlirSpecialComment SpecialComment
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HiLink mlirIdentifier Identifier
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HiLink mlirBlockIdentifier Label
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HiLink mlirTypeIdentifier Type
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HiLink mlirAttrIdentifier PreProc
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delcommand HiLink
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endif
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let b:current_syntax = "mlir"
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