cmd/compile/internal/gc: remove unused state.placeholder field

gc.state.placeholder was added in 5a6e511c61 but never used.

Change-Id: I5a621507279d5bb1f3991b7a412d9a63039c464e
Reviewed-on: https://go-review.googlesource.com/38755
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 608f6cce8d89abc8b3710559832fbec48b4feb2e..fc08596dbe891a99282eed4f4260b097286a8e92 100644 (file)
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -256,9 +256,6 @@ type state struct {
        // list of PPARAMOUT (return) variables.
        returns []*Node
 
-       // A dummy value used during phi construction.
-       placeholder *ssa.Value
-
        cgoUnsafeArgs bool
        hasdefer      bool // whether the function contains a defer statement
 }