diff --git a/llvm/unittests/Support/Path.cpp b/llvm/unittests/Support/Path.cpp
--- a/llvm/unittests/Support/Path.cpp
+++ b/llvm/unittests/Support/Path.cpp
@@ -1751,9 +1751,10 @@
   EXPECT_TRUE(CheckPermissions(fs::set_gid_on_exe));
 
   // Modern BSDs require root to set the sticky bit on files.
-  // AIX without root will mask off (i.e., lose) the sticky bit on files.
+  // AIX and Solaris without root will mask off (i.e., lose) the sticky bit
+  // on files.
 #if !defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__OpenBSD__) &&  \
-    !defined(_AIX)
+    !defined(_AIX) && !(defined(__sun__) && defined(__svr4__))
   EXPECT_EQ(fs::setPermissions(TempPath, fs::sticky_bit), NoError);
   EXPECT_TRUE(CheckPermissions(fs::sticky_bit));