1 files changed, 71 insertions, 0 deletions
diff --git a/third_party/highway/hwy/tests/list_targets.cc b/third_party/highway/hwy/tests/list_targets.cc
new file mode 100644
index 0000000000..d09ee4fe86
--- /dev/null
+++ b/third_party/highway/hwy/tests/list_targets.cc
@@ -0,0 +1,71 @@
+// Copyright 2020 Google LLC
+// SPDX-License-Identifier: Apache-2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Simple tool to print the list of targets that were compiled in when building
+// this tool.
+
+#include <stdio.h>
+
+#include "hwy/highway.h"
+
+void PrintTargets(const char* msg, int64_t targets) {
+  fprintf(stderr, "%s", msg);
+  // For each bit:
+  for (int64_t x = targets; x != 0; x = x & (x - 1)) {
+    // Extract value of least-significant bit.
+    fprintf(stderr, " %s", hwy::TargetName(x & (~x + 1)));
+  }
+  fprintf(stderr, "\n");
+}
+
+int main() {
+#ifdef HWY_COMPILE_ONLY_EMU128
+  const int only_emu128 = 1;
+#else
+  const int only_emu128 = 0;
+#endif
+#ifdef HWY_COMPILE_ONLY_SCALAR
+  const int only_scalar = 1;
+#else
+  const int only_scalar = 0;
+#endif
+#ifdef HWY_COMPILE_ONLY_STATIC
+  const int only_static = 1;
+#else
+  const int only_static = 0;
+#endif
+#ifdef HWY_COMPILE_ALL_ATTAINABLE
+  const int all_attain = 1;
+#else
+  const int all_attain = 0;
+#endif
+#ifdef HWY_IS_TEST
+  const int is_test = 1;
+#else
+  const int is_test = 0;
+#endif
+
+  fprintf(stderr,
+          "Config: emu128:%d scalar:%d static:%d all_attain:%d is_test:%d\n",
+          only_emu128, only_scalar, only_static, all_attain, is_test);
+  PrintTargets("Compiled HWY_TARGETS:  ", HWY_TARGETS);
+  PrintTargets("HWY_ATTAINABLE_TARGETS:", HWY_ATTAINABLE_TARGETS);
+  PrintTargets("HWY_BASELINE_TARGETS:  ", HWY_BASELINE_TARGETS);
+  PrintTargets("HWY_STATIC_TARGET:     ", HWY_STATIC_TARGET);
+  PrintTargets("HWY_BROKEN_TARGETS:    ", HWY_BROKEN_TARGETS);
+  PrintTargets("HWY_DISABLED_TARGETS:  ", HWY_DISABLED_TARGETS);
+  PrintTargets("Current CPU supports:  ", hwy::SupportedTargets());
+  return 0;
+}