Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/builtins/TestCases/Darwin/lit.local.cfg

@@ -0,0 +1,9 @@
+def getRoot(config):
+  if not config.parent:
+    return config
+  return getRoot(config.parent)
+
+root = getRoot(config)
+
+if root.host_os not in ['Darwin']:
+  config.unsupported = True

external/llvm-project/compiler-rt/test/builtins/TestCases/Darwin/os_version_check_test.c

@@ -0,0 +1,19 @@
+// RUN: %clang %s -o %t -mmacosx-version-min=10.5 -framework CoreFoundation -DMAJOR=%macos_version_major -DMINOR=%macos_version_minor -DSUBMINOR=%macos_version_subminor
+// RUN: %run %t
+
+int __isOSVersionAtLeast(int Major, int Minor, int Subminor);
+
+int main() {
+  if (!__isOSVersionAtLeast(MAJOR, MINOR, SUBMINOR))
+    return 1;
+  if (__isOSVersionAtLeast(MAJOR, MINOR, SUBMINOR + 1))
+    return 1;
+  if (SUBMINOR && __isOSVersionAtLeast(MAJOR + 1, MINOR, SUBMINOR - 1))
+    return 1;
+  if (SUBMINOR && !__isOSVersionAtLeast(MAJOR, MINOR, SUBMINOR - 1))
+    return 1;
+  if (MAJOR && !__isOSVersionAtLeast(MAJOR - 1, MINOR + 1, SUBMINOR))
+    return 1;
+
+  return 0;
+}

external/llvm-project/compiler-rt/test/builtins/TestCases/Darwin/os_version_check_test_no_core_foundation.c

@@ -0,0 +1,12 @@
+// RUN: %clang %s -o %t -mmacosx-version-min=10.5
+// RUN: %run %t
+
+int __isOSVersionAtLeast(int Major, int Minor, int Subminor);
+
+int main() {
+  // When CoreFoundation isn't linked, we expect the system version to be 0, 0,
+  // 0.
+  if (__isOSVersionAtLeast(1, 0, 0))
+    return 1;
+  return 0;
+}