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| author | Cherry Zhang <cherryyz@google.com> | 2016-08-11 09:54:04 -0400 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2016-08-16 14:32:13 +0000 |
| commit | 4c4ca8312064cc47bc3b3cd5efc43ff5b89f4dff (patch) | |
| tree | 31e396a45aa7166c900934bd2252aa329ea0de4a | |
| parent | 40cf4ad0ef2232d65a85d35897ea11aab95e9ef4 (diff) | |
| download | go-4c4ca8312064cc47bc3b3cd5efc43ff5b89f4dff.tar.gz go-4c4ca8312064cc47bc3b3cd5efc43ff5b89f4dff.zip | |
cmd/compile: remove nil check in accessing PAUTOHEAP variable
CL 23393 introduces PAUTOHEAP, and access of PAUTOHEAP variable is
rewritten to indirection of a PAUTO variable. Mark this variable
non-nil, so this indirection does not introduce extra nil checks.
Change-Id: I31853eed5e60238b6c5bc0546e2e9ab340dcddd9
Reviewed-on: https://go-review.googlesource.com/26831
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
| -rw-r--r-- | src/cmd/compile/internal/gc/walk.go | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/gc/walk.go b/src/cmd/compile/internal/gc/walk.go index 1e7d80d3e9..88ac347ad7 100644 --- a/src/cmd/compile/internal/gc/walk.go +++ b/src/cmd/compile/internal/gc/walk.go @@ -506,7 +506,9 @@ func walkexpr(n *Node, init *Nodes) *Node { if n.Op == ONAME && n.Class == PAUTOHEAP { nn := Nod(OIND, n.Name.Heapaddr, nil) nn = typecheck(nn, Erv) - return walkexpr(nn, init) + nn = walkexpr(nn, init) + nn.Left.NonNil = true + return nn } opswitch: |