diff options
| author | Keith Randall <khr@golang.org> | 2016-02-12 10:07:36 -0800 |
|---|---|---|
| committer | Keith Randall <khr@golang.org> | 2016-02-12 21:07:21 +0000 |
| commit | e3033fc535eb29ab7533ecc4a86c607c2046b9c7 (patch) | |
| tree | f71a28932e72cfadcbbb3886530240b98a65cfe2 /src/cmd | |
| parent | c93193aec0f33e901d6802e61c966286785f57ee (diff) | |
| download | go-git-e3033fc535eb29ab7533ecc4a86c607c2046b9c7.tar.gz | |
cmd/compile: add write barrier to type switch
Type switches need write barriers if the written-to
variable is heap allocated.
For the added needwritebarrier call, the right arg doesn't
really matter, I just pass something that will never disqualify
the write barrier. The left arg is the one that matters.
Fixes #14306
Change-Id: Ic2754167cce062064ea2eeac2944ea4f77cc9c3b
Reviewed-on: https://go-review.googlesource.com/19481
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/cmd')
| -rw-r--r-- | src/cmd/compile/internal/gc/gen.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/gc/gen.go b/src/cmd/compile/internal/gc/gen.go index 836834f8bd..b756055668 100644 --- a/src/cmd/compile/internal/gc/gen.go +++ b/src/cmd/compile/internal/gc/gen.go @@ -836,7 +836,7 @@ func gen(n *Node) { Cgen_as_wb(n.Left, n.Right, true) case OAS2DOTTYPE: - cgen_dottype(n.Rlist.N, n.List.N, n.List.Next.N, false) + cgen_dottype(n.Rlist.N, n.List.N, n.List.Next.N, needwritebarrier(n.List.N, n.Rlist.N)) case OCALLMETH: cgen_callmeth(n, 0) |