Lower stacksave and restore intrinsics.

crosstest/runtests.sh

Index: crosstest/runtests.sh
diff --git a/crosstest/runtests.sh b/crosstest/runtests.sh
index 913cc5b33f162dc0a608baa6e61754a6bf24ac1a..6104aa90768e368c609171884eaa360a81c259c1 100755
--- a/crosstest/runtests.sh
+++ b/crosstest/runtests.sh
@@ -71,6 +71,13 @@ for optlevel in ${OPTLEVELS} ; do
         --driver=test_icmp_main.cpp \
         --output=test_icmp_O${optlevel}
 
+    ./crosstest.py -O${optlevel} --prefix=Subzero_ --target=x8632 \
+        --dir="${OUTDIR}" \
+        --llvm-bin-path="${LLVM_BIN_PATH}" \
+        --test=test_stacksave.c \
+        --driver=test_stacksave_main.c \
+        --output=test_stacksave_O${optlevel}
+
     # Compile the non-subzero object files straight from source
     # since the native LLVM backend does not understand how to
     # lower NaCl-specific intrinsics.
@@ -93,5 +100,6 @@ for optlevel in ${OPTLEVELS} ; do
     "${OUTDIR}"/test_fcmp_O${optlevel}
     "${OUTDIR}"/test_global_O${optlevel}
     "${OUTDIR}"/test_icmp_O${optlevel}
+    "${OUTDIR}"/test_stacksave_O${optlevel}
     "${OUTDIR}"/test_sync_atomic_O${optlevel}
 done