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cmd/compile: make sinit consts Go-ish

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Passes toolstash -cmp.

Change-Id: Ie11912a16d2cd54500e2f6e84316519b80e7c304
Reviewed-on: https://go-review.googlesource.com/20672
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2016-03-13 17:06:10 -07:00
parent e6ed3e8a46
commit 4e75932cf7
1 changed files with 13 additions and 12 deletions
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25
src/cmd/compile/internal/gc/sinit.go
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@ -525,37 +525,38 @@ func litas(l *Node, r *Node, init *Nodes) {
init.Append(a)
}
// initGenType is a bitmap indicating the types of generation that will occur for a static value.
type initGenType uint8
const (
MODEDYNAM = 1
MODECONST = 2
initDynamic initGenType = 1 << iota // contains some dynamic values, for which init code will be generated
initConst // contains some constant values, which may be written into data symbols
)
func getdyn(n *Node, top int) int {
mode := 0
func getdyn(n *Node, top int) initGenType {
switch n.Op {
default:
if isliteral(n) {
return MODECONST
return initConst
}
return MODEDYNAM
return initDynamic
case OARRAYLIT:
if top == 0 && n.Type.Bound < 0 {
return MODEDYNAM
return initDynamic
}
fallthrough
case OSTRUCTLIT:
break
}
var mode initGenType
for _, n1 := range n.List.Slice() {
value := n1.Right
mode |= getdyn(value, 0)
if mode == MODEDYNAM|MODECONST {
if mode == initDynamic|initConst {
break
}
}
return mode
}
@ -737,7 +738,7 @@ func slicelit(ctxt int, n *Node, var_ *Node, init *Nodes) {
var vstat *Node
mode := getdyn(n, 1)
if mode&MODECONST != 0 {
if mode&initConst != 0 {
vstat = staticname(t, ctxt)
arraylit(ctxt, 1, n, vstat, init)
}