From 942bcc2d4f4e66b617c225aed1ba4d4d42a08ed2 Mon Sep 17 00:00:00 2001
From: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Date: Sat, 26 Jun 2021 13:57:51 +0700
Subject: [PATCH] [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>
---
 src/cmd/compile/internal/devirtualize/devirtualize.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/cmd/compile/internal/devirtualize/devirtualize.go b/src/cmd/compile/internal/devirtualize/devirtualize.go
index f52499e07f6..60ba208d087 100644
--- 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).