From a070533633bd709bc3598dbd7c28edca1d2ba6e2 Mon Sep 17 00:00:00 2001
From: "khr@golang.org" <khr@golang.org>
Date: Tue, 20 May 2025 15:59:02 -0700
Subject: [PATCH] reflect: turn off allocation test if instrumentation is on

Help fix the asan builders.

Change-Id: I980f5171519643c3543bdefc6ea46fd0fca17c28
Reviewed-on: https://go-review.googlesource.com/c/go/+/674616
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
---
 src/reflect/all_test.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/reflect/all_test.go b/src/reflect/all_test.go
index e86ee9d322..fb1a29d060 100644
--- a/src/reflect/all_test.go
+++ b/src/reflect/all_test.go
@@ -13,6 +13,8 @@ import (
 	"internal/asan"
 	"internal/goarch"
 	"internal/goexperiment"
+	"internal/msan"
+	"internal/race"
 	"internal/testenv"
 	"io"
 	"math"
@@ -8766,6 +8768,9 @@ func TestTypeAssertPanic(t *testing.T) {
 }
 
 func TestTypeAssertAllocs(t *testing.T) {
+	if race.Enabled || asan.Enabled || msan.Enabled {
+		t.Skip("instrumentation breaks this optimization")
+	}
 	typeAssertAllocs[[128]int](t, ValueOf([128]int{}), 0)
 	typeAssertAllocs[any](t, ValueOf([128]int{}), 0)
 
-- 
2.51.0