diff --git a/compiler-rt/lib/sanitizer_common/tests/sanitizer_stacktrace_test.cpp b/compiler-rt/lib/sanitizer_common/tests/sanitizer_stacktrace_test.cpp
--- a/compiler-rt/lib/sanitizer_common/tests/sanitizer_stacktrace_test.cpp
+++ b/compiler-rt/lib/sanitizer_common/tests/sanitizer_stacktrace_test.cpp
@@ -68,7 +68,8 @@
   UnmapOrDie(mapping, 2 * ps);
 }
 
-#if SANITIZER_CAN_FAST_UNWIND
+#if SANITIZER_CAN_FAST_UNWIND && !defined(__sparc__)
+// Fake stacks don't meet SPARC UnwindFast requirements.
 
 void FastUnwindTest::UnwindFast() {
   trace.UnwindFast(start_pc, fake_bp, fake_top, fake_bottom, kStackTraceMax);
@@ -145,7 +146,7 @@
   }
 }
 
-#endif // SANITIZER_CAN_FAST_UNWIND
+#endif // SANITIZER_CAN_FAST_UNWIND && !__sparc__
 
 TEST(SlowUnwindTest, ShortStackTrace) {
   BufferedStackTrace stack;