[dev.typeparams] cmd/compile: fix wrong AST generation in devirtualization

CL 330671 moved rewrite method calls to escape analysis. It accidently
made the AST invalid, by removing the OCALLMETH set operation during
devirtualization pass.

Change-Id: I862ffd7f880de55969d7784d9e7b3c38894f6b68
Reviewed-on: https://go-review.googlesource.com/c/go/+/330832
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>

diff --git a/src/cmd/compile/internal/devirtualize/devirtualize.go b/src/cmd/compile/internal/devirtualize/devirtualize.go
index f52499e07f660a0ff0182edcad756d52cb7487d7..60ba208d0876b119d74e10e33d0103c97fee5c8c 100644 (file)
--- a/src/cmd/compile/internal/devirtualize/devirtualize.go
+++ b/src/cmd/compile/internal/devirtualize/devirtualize.go
@@ -50,6 +50,7 @@ func Call(call *ir.CallExpr) {
                if base.Flag.LowerM != 0 {
                        base.WarnfAt(call.Pos(), "devirtualizing %v to %v", sel, typ)
                }
+               call.SetOp(ir.OCALLMETH)
                call.X = x
        case ir.ODOTINTER:
                // Promoted method from embedded interface-typed field (#42279).