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cmd/compile: reduce garbage from autolabel

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Follow-up to CL 26661

Change-Id: I67c58d17313094675cf0f30ce50d486818ae0dcb
Reviewed-on: https://go-review.googlesource.com/27113
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2016-08-15 21:09:39 -07:00
parent 77e68ea78a
commit fe27291c00
3 changed files with 10 additions and 5 deletions
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4
src/cmd/compile/internal/gc/swt.go
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@ -358,7 +358,7 @@ func casebody(sw *Node, typeswvar *Node) {
n.Op = OCASE
needvar := n.List.Len() != 1 || n.List.First().Op == OLITERAL
jmp := Nod(OGOTO, autolabel("s"), nil)
jmp := Nod(OGOTO, autolabel(".s"), nil)
if n.List.Len() == 0 {
if def != nil {
Yyerror("more than one default case")
@ -577,7 +577,7 @@ func (s *typeSwitch) walk(sw *Node) {
i.Nbody.Set1(typenil)
} else {
// Jump to default case.
lbl := autolabel("s")
lbl := autolabel(".s")
i.Nbody.Set1(Nod(OGOTO, lbl, nil))
// Wrap default case with label.
blk := Nod(OBLOCK, nil, nil)