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cmd/compile/internal/gc: use slice instead of NodeList for Label.Use

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Change-Id: I021c95df24edbff24ff2922769ef2b2acd47016a
Reviewed-on: https://go-review.googlesource.com/14081
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
This commit is contained in:
Håvard Haugen 2015-08-30 22:24:53 +02:00 • committed by Brad Fitzpatrick
parent e8da46f6db
commit dd42eff8fe
2 changed files with 6 additions and 8 deletions
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12
src/cmd/compile/internal/gc/gen.go
View file

@ -135,7 +135,7 @@ func newlab(n *Node) *Label {
lab.Def = n lab.Def = n
} }
} else { } else {
lab.Use = list(lab.Use, n) lab.Use = append(lab.Use, n)
} }
return lab return lab
@ -986,12 +986,10 @@ func CgenTemp(n *Node) *Node {
} }
func checklabels() { func checklabels() {
var l *NodeList
for lab := labellist; lab != nil; lab = lab.Link { for lab := labellist; lab != nil; lab = lab.Link {
if lab.Def == nil { if lab.Def == nil {
for l = lab.Use; l != nil; l = l.Next { for _, n := range lab.Use {
yyerrorl(int(l.N.Lineno), "label %v not defined", lab.Sym) yyerrorl(int(n.Lineno), "label %v not defined", lab.Sym)
} }
continue continue
} }
@ -1004,8 +1002,8 @@ func checklabels() {
if lab.Gotopc != nil { if lab.Gotopc != nil {
Fatalf("label %v never resolved", lab.Sym) Fatalf("label %v never resolved", lab.Sym)
} }
for l = lab.Use; l != nil; l = l.Next { for _, n := range lab.Use {
checkgoto(l.N, lab.Def) checkgoto(n, lab.Def)
} }
} }
} }

2
src/cmd/compile/internal/gc/go.go
View file

@ -220,7 +220,7 @@ type Label struct {
Used uint8 Used uint8
Sym *Sym Sym *Sym
Def *Node Def *Node
Use *NodeList Use []*Node
Link *Label Link *Label
// for use during gen // for use during gen