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cmd/compile: replace Ctype switches with type switches

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Instead of switching on Ctype (which internally uses a type switch)
and then scattering lots of type assertions throughout the CTFOO case
clauses, just use type switches directly on the underlying constant
value.

Passes toolstash/buildall.

Change-Id: I9bc172cc67e5f391cddc15539907883b4010689e
Reviewed-on: https://go-review.googlesource.com/22384
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Matthew Dempsky 2016-04-22 12:27:29 -07:00
parent 2d342fba78
commit 97360096e5
9 changed files with 146 additions and 168 deletions
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20
src/cmd/compile/internal/gc/gsubr.go
View file

@ -430,28 +430,28 @@ func Naddr(a *obj.Addr, n *Node) {
if Thearch.LinkArch.Family == sys.I386 {
a.Width = 0
}
switch n.Val().Ctype() {
switch u := n.Val().U.(type) {
default:
Fatalf("naddr: const %v", Tconv(n.Type, FmtLong))
case CTFLT:
case *Mpflt:
a.Type = obj.TYPE_FCONST
a.Val = n.Val().U.(*Mpflt).Float64()
a.Val = u.Float64()
case CTINT, CTRUNE:
case *Mpint:
a.Sym = nil
a.Type = obj.TYPE_CONST
a.Offset = n.Int64()
a.Offset = u.Int64()
case CTSTR:
datagostring(n.Val().U.(string), a)
case string:
datagostring(u, a)
case CTBOOL:
case bool:
a.Sym = nil
a.Type = obj.TYPE_CONST
a.Offset = int64(obj.Bool2int(n.Val().U.(bool)))
a.Offset = int64(obj.Bool2int(u))
case CTNIL:
case *NilVal:
a.Sym = nil
a.Type = obj.TYPE_CONST
a.Offset = 0