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Inline function calls in a tight loop

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Manually inline function calls in a tight loop as Go compiler does not
inline non-leaf functions. It is observed that this unpleasant code
change resulted up to 10% performance improvement.
This commit is contained in:
Junegunn Choi 2017-07-31 03:21:35 +09:00
parent 9d2c6a95f4
commit f4b46fad27
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GPG Key ID: 254BC280FEF9C627
1 changed files with 13 additions and 7 deletions
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20
src/pattern.go
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@ -301,7 +301,12 @@ func (p *Pattern) MatchItem(item *Item, withPos bool, slab *util.Slab) (*Result,
}
func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset, int, *[]int) {
input := p.prepareInput(item)
var input []Token
if len(p.nth) == 0 {
input = []Token{Token{text: &item.text, prefixLength: 0}}
} else {
input = p.transformInput(item)
}
if p.fuzzy {
return p.iter(p.fuzzyAlgo, input, p.caseSensitive, p.normalize, p.forward, p.text, withPos, slab)
}
@ -309,7 +314,12 @@ func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset,
}
func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Offset, int, *[]int) {
input := p.prepareInput(item)
var input []Token
if len(p.nth) == 0 {
input = []Token{Token{text: &item.text, prefixLength: 0}}
} else {
input = p.transformInput(item)
}
offsets := []Offset{}
var totalScore int
var allPos *[]int
@ -353,11 +363,7 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
return offsets, totalScore, allPos
}
func (p *Pattern) prepareInput(item *Item) []Token {
if len(p.nth) == 0 {
return []Token{Token{text: &item.text, prefixLength: 0}}
}
func (p *Pattern) transformInput(item *Item) []Token {
if item.transformed != nil {
return *item.transformed
}