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Split architecture-specific code into separate files
Those will be conditionally compiled by the Go compiler based on the target architecture due to their name suffix.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package gosaxml | ||
|
|
||
| import "github.com/klauspost/cpuid/v2" | ||
|
|
||
| var canUseSSE = cpuid.CPU.Has(cpuid.SSE2) && cpuid.CPU.Has(cpuid.BMI1) | ||
| var canUseAVX2 = canUseSSE && cpuid.CPU.Has(cpuid.AVX2) | ||
|
|
||
| func init() { | ||
| if canUseAVX2 { | ||
| simdWidth = 32 | ||
| } else if canUseSSE { | ||
| simdWidth = 16 | ||
| } | ||
| } | ||
|
|
||
| func (thiz *decoder) skipWhitespaces(b byte) (byte, error) { | ||
| if canUseAVX2 { | ||
| return thiz.skipWhitespacesAVX2(b) | ||
| } else if canUseSSE { | ||
| return thiz.skipWhitespacesSSE(b) | ||
| } | ||
| return thiz.skipWhitespacesGeneric(b) | ||
| } | ||
|
|
||
| func (thiz *decoder) skipWhitespacesAVX2(b byte) (byte, error) { | ||
| if !isWhitespace(b) { | ||
| return b, nil | ||
| } | ||
| for { | ||
| for thiz.w > thiz.r { | ||
| sidx := int(onlySpaces32(thiz.rb[thiz.r:thiz.w])) | ||
| _, err := thiz.discard(sidx) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| if sidx != 32 { | ||
| newB, err := thiz.readByte() | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| return newB, nil | ||
| } | ||
| } | ||
| thiz.discardBuffer() | ||
| err := thiz.read0() | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (thiz *decoder) skipWhitespacesSSE(b byte) (byte, error) { | ||
| if !isWhitespace(b) { | ||
| return b, nil | ||
| } | ||
| for { | ||
| j := thiz.r | ||
| c := 0 | ||
| for thiz.w > thiz.r+c { | ||
| sidx := onlySpaces32(thiz.rb[j+c : thiz.w]) | ||
| c += int(sidx) | ||
| if sidx != 16 { | ||
| _, err := thiz.discard(c) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| newB, err := thiz.readByte() | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| return newB, nil | ||
| } | ||
| } | ||
| thiz.discardBuffer() | ||
| err := thiz.read0() | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (thiz *decoder) decodeText(t *Token) (bool, error) { | ||
| if canUseAVX2 { | ||
| return thiz.decodeTextAVX2(t) | ||
| } else if canUseSSE { | ||
| return thiz.decodeTextSSE(t) | ||
| } | ||
| return thiz.decodeTextGeneric(t) | ||
| } | ||
|
|
||
| func (thiz *decoder) decodeTextSSE(t *Token) (bool, error) { | ||
| i := len(thiz.bb) | ||
| onlyWhitespaces := true | ||
| for { | ||
| j := thiz.r | ||
| c := 0 | ||
| for thiz.w > thiz.r+c { | ||
| sidx := openAngleBracket16(thiz.rb[j+c : thiz.w]) | ||
| onlyWhitespaces = onlyWhitespaces && onlySpaces16(thiz.rb[j+c:thiz.w]) >= sidx | ||
| c += int(sidx) | ||
| if sidx != 16 { | ||
| _, err := thiz.discard(c) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| if onlyWhitespaces && !thiz.preserveWhitespaces[thiz.top] { | ||
| return true, nil | ||
| } | ||
| thiz.bb = append(thiz.bb, thiz.rb[j:j+c]...) | ||
| t.Kind = TokenTypeTextElement | ||
| t.ByteData = thiz.bb[i:len(thiz.bb)] | ||
| return false, nil | ||
| } | ||
| } | ||
| thiz.bb = append(thiz.bb, thiz.rb[j:thiz.w]...) | ||
| thiz.discardBuffer() | ||
| err := thiz.read0() | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (thiz *decoder) decodeTextAVX2(t *Token) (bool, error) { | ||
| i := len(thiz.bb) | ||
| onlyWhitespaces := true | ||
| for { | ||
| j := thiz.r | ||
| c := 0 | ||
| for thiz.w > thiz.r+c { | ||
| sidx := openAngleBracket32(thiz.rb[j+c : thiz.w]) | ||
| onlyWhitespaces = onlyWhitespaces && onlySpaces32(thiz.rb[j+c:thiz.w]) >= sidx | ||
| c += int(sidx) | ||
| if sidx != 32 { | ||
| _, err := thiz.discard(c) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| if onlyWhitespaces && !thiz.preserveWhitespaces[thiz.top] { | ||
| return true, nil | ||
| } | ||
| thiz.bb = append(thiz.bb, thiz.rb[j:j+c]...) | ||
| t.Kind = TokenTypeTextElement | ||
| t.ByteData = thiz.bb[i:len(thiz.bb)] | ||
| return false, nil | ||
| } | ||
| } | ||
| thiz.bb = append(thiz.bb, thiz.rb[j:thiz.w]...) | ||
| thiz.discardBuffer() | ||
| err := thiz.read0() | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| package gosaxml | ||
|
|
||
| func (thiz *decoder) skipWhitespaces(b byte) (byte, error) { | ||
| return thiz.skipWhitespacesGeneric(b) | ||
| } | ||
|
|
||
| func (thiz *decoder) decodeText(t *Token) (bool, error) { | ||
| return thiz.decodeTextGeneric(t) | ||
| } |