Index: src/cmd/dist/test.go
--- src/cmd/dist/test.go.orig
+++ src/cmd/dist/test.go
@@ -784,7 +784,7 @@ func (t *tester) registerTests() {
 			pkg:     "simd",
 		})
 		// simd/archsimd supports amd64, arm64, and wasm.
-		archsimdSupported := goarch == "amd64" || goarch == "arm64" || goarch == "wasm"
+		archsimdSupported := (goarch == "amd64" && goos != "openbsd") || goarch == "arm64" || goarch == "wasm"
 		if archsimdSupported {
 			t.registerTest("GOEXPERIMENT=simd go test simd/archsimd/...", &goTest{
 				variant: "simd",
