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Diffstat (limited to 'src/cmd/compile/internal/gc/walk.go')
| -rw-r--r-- | src/cmd/compile/internal/gc/walk.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/gc/walk.go b/src/cmd/compile/internal/gc/walk.go index 8248d503b3..efe2016e46 100644 --- a/src/cmd/compile/internal/gc/walk.go +++ b/src/cmd/compile/internal/gc/walk.go @@ -694,6 +694,10 @@ opswitch: break } + if !instrumenting && iszero(n.Right) && !needwritebarrier(n.Left, n.Right) { + break + } + switch n.Right.Op { default: n.Right = walkexpr(n.Right, init) |