diff --git a/crosstest/crosstest.cfg b/crosstest/crosstest.cfg
index 2222b90..620edb6 100644
--- a/crosstest/crosstest.cfg
+++ b/crosstest/crosstest.cfg
@@ -42,6 +42,13 @@
 driver: test_stacksave_main.c
 test: test_stacksave.c
 
+[test_strengthreduce]
+driver: test_strengthreduce_main.cpp
+test: test_strengthreduce.cpp
+# Disable clang-side optimizations so that pnacl-sz sees suitable
+# bitcode patterns.
+flags: --clang-opt=0
+
 [test_sync_atomic]
 driver: test_sync_atomic_main.cpp
 # Compile the non-Subzero object files straight from source since the native