diff --git a/src/cmd/compile/internal/reflectdata/reflect.go b/src/cmd/compile/internal/reflectdata/reflect.go
index 5b44b7098d..d9f2708712 100644
--- a/src/cmd/compile/internal/reflectdata/reflect.go
+++ b/src/cmd/compile/internal/reflectdata/reflect.go
@@ -1726,6 +1726,9 @@ func CollectPTabs() {
 		if s.Pkg.Name != "main" {
 			continue
 		}
+		if n.Type().HasTParam() {
+			continue // skip generic functions (#52937)
+		}
 		ptabs = append(ptabs, n)
 	}
 }
diff --git a/test/run.go b/test/run.go
index 00f869bc2b..7553302a76 100644
--- a/test/run.go
+++ b/test/run.go
@@ -993,7 +993,10 @@ func (t *test) run() {
 
 	case "build":
 		// Build Go file.
-		_, err := runcmd(goTool(), "build", t.goGcflags(), "-o", "a.exe", long)
+		cmd := []string{goTool(), "build", t.goGcflags()}
+		cmd = append(cmd, flags...)
+		cmd = append(cmd, "-o", "a.exe", long)
+		_, err := runcmd(cmd...)
 		if err != nil {
 			t.err = err
 		}
diff --git a/test/typeparam/issue52937.go b/test/typeparam/issue52937.go
new file mode 100644
index 0000000000..efcb69a2c1
--- /dev/null
+++ b/test/typeparam/issue52937.go
@@ -0,0 +1,14 @@
+// build -buildmode=plugin
+
+//go:build !js
+// +build !js
+
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+func main()      {}
+func F[T any]()  {}
+func G[T any](T) {}