From 201abb5cd1b400eeab6c3a98d350e45aa3e1abf2 Mon Sep 17 00:00:00 2001
From: Ryan Macnak <rmacnak@google.com>
Date: Mon, 1 Jun 2026 16:57:43 -0700
Subject: [PATCH] Reduce sanitizer build set.

Change-Id: Idd5df6ff7c5b4f6bc3ccb0a335df0d332556d6ba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/508420
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
---
 .../vm/dart/sanitizer_compatibility_test.dart | 112 ------------------
 tools/bots/test_matrix.json                   |   1 -
 2 files changed, 113 deletions(-)
 delete mode 100644 runtime/tests/vm/dart/sanitizer_compatibility_test.dart

diff --git a/runtime/tests/vm/dart/sanitizer_compatibility_test.dart b/runtime/tests/vm/dart/sanitizer_compatibility_test.dart
deleted file mode 100644
index 374a5454316..00000000000
--- a/runtime/tests/vm/dart/sanitizer_compatibility_test.dart
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Check for a proper error when a snapshot and a runtime don't agree on which
-// sanitizer they are using.
-
-import "dart:io";
-
-import "package:expect/expect.dart";
-
-import "use_flag_test_helper.dart";
-
-String find(String haystack, List<String> needles) {
-  for (String needle in needles) {
-    if (haystack.contains(needle)) {
-      return needle;
-    }
-  }
-  throw "None of ${needles.join(' ')}";
-}
-
-void checkExists(String path) {
-  if (!File(path).existsSync()) {
-    throw "$path does not exist";
-  }
-}
-
-main() async {
-  var sanitizer = find(Platform.executable, ["ASAN", "MSAN", "TSAN"]);
-  var mode = find(Platform.executable, ["Debug", "Release", "Product"]);
-  var arch = find(Platform.executable, ["X64", "ARM64", "RISCV64"]);
-  var out = find(Platform.executable, ["out", "xcodebuild"]);
-  var targetFlag = {
-    "ASAN": "--target_address_sanitizer",
-    "MSAN": "--target_memory_sanitizer",
-    "TSAN": "--target_thread_sanitizer",
-  }[sanitizer]!;
-
-  var nonePlatform = "$out/$mode$arch/vm_platform.dill";
-  var noneGenSnapshot = "$out/$mode$arch/gen_snapshot";
-  var noneJitRuntime = "$out/$mode$arch/dart";
-  var noneAotRuntime = "$out/$mode$arch/dartaotruntime";
-  var sanitizerGenSnapshot = "$out/$mode$sanitizer$arch/gen_snapshot";
-  var sanitizerAotRuntime = "$out/$mode$sanitizer$arch/dartaotruntime";
-
-  checkExists(noneGenSnapshot);
-  checkExists(noneJitRuntime);
-  checkExists(noneAotRuntime);
-  checkExists(sanitizerGenSnapshot);
-  checkExists(sanitizerAotRuntime);
-
-  await withTempDir('sanitizer-compatibility-test', (String tempDir) async {
-    var aotDill = "$tempDir/aot.dill";
-    var noneElf = "$tempDir/none.elf";
-    var sanitizerElf = "$tempDir/$sanitizer.elf";
-    var sanitizerElf2 = "$tempDir/${sanitizer}2.elf";
-
-    await run(noneJitRuntime, [
-      "pkg/vm/bin/gen_kernel.dart",
-      "--platform",
-      nonePlatform,
-      "--aot",
-      "-o",
-      aotDill,
-      "tests/language/unsorted/first_test.dart",
-    ]);
-
-    await run(noneGenSnapshot, [
-      if (Platform.isMacOS) ...[
-        "--snapshot-kind=app-aot-macho-dylib",
-        "--macho=$noneElf",
-      ] else ...[
-        "--snapshot-kind=app-aot-elf",
-        "--elf=$noneElf",
-      ],
-      aotDill,
-    ]);
-    await run(sanitizerGenSnapshot, [
-      if (Platform.isMacOS) ...[
-        "--snapshot-kind=app-aot-macho-dylib",
-        "--macho=$sanitizerElf",
-      ] else ...[
-        "--snapshot-kind=app-aot-elf",
-        "--elf=$sanitizerElf",
-      ],
-      aotDill,
-    ]);
-    await run(noneGenSnapshot, [
-      if (Platform.isMacOS) ...[
-        "--snapshot-kind=app-aot-macho-dylib",
-        "--macho=$sanitizerElf2",
-      ] else ...[
-        "--snapshot-kind=app-aot-elf",
-        "--elf=$sanitizerElf2",
-      ],
-      targetFlag,
-      aotDill,
-    ]);
-
-    await run(noneAotRuntime, [noneElf]);
-    await run(sanitizerAotRuntime, [sanitizerElf]);
-    await run(sanitizerAotRuntime, [sanitizerElf2]);
-
-    var errorLines = await runError(noneAotRuntime, [sanitizerElf]);
-    Expect.contains("Snapshot not compatible", errorLines[0]);
-    errorLines = await runError(noneAotRuntime, [sanitizerElf2]);
-    Expect.contains("Snapshot not compatible", errorLines[0]);
-    errorLines = await runError(sanitizerAotRuntime, [noneElf]);
-    Expect.contains("Snapshot not compatible", errorLines[0]);
-  });
-}
diff --git a/tools/bots/test_matrix.json b/tools/bots/test_matrix.json
index f758368deb3..61eed0b6336 100644
--- a/tools/bots/test_matrix.json
+++ b/tools/bots/test_matrix.json
@@ -1525,7 +1525,6 @@
           "name": "build dart",
           "script": "tools/build.py",
           "arguments": [
-            "--sanitizer=none,${sanitizer}",
             "runtime",
             "runtime_precompiled"
           ]