Stowage/go
2
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-12-08 06:10:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

cmd/compile: fix invalid switch case value panic

Browse source 
This is a regression introduced by myself in golang.org/cl/41852,
confirmed by the program that reproduces the crash that can be seen in
the added test.

Fixes #21988.

Change-Id: I18d5b2b3de63ced84db705b18490b00b16b59e02
Reviewed-on: https://go-review.googlesource.com/65655
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Daniel Martí 2017-09-23 23:04:31 +01:00
parent 7739b8a97f
commit 24ca86f308
2 changed files with 22 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
src/cmd/compile/internal/gc/swt.go
View file

@ -610,6 +610,11 @@ func checkDupExprCases(exprname *Node, clauses []*Node) {
if ct := consttype(n); ct < 0 || ct == CTBOOL {
continue
}
// If the value has no type, we have
// already printed an error about it.
if n.Type == nil {
continue
}
val := n.Val().Interface()
prev, dup := seen[val]