Subzero: lower the rest of the atomic operations.

crosstest/runtests.sh

 #!/bin/sh
 
 # TODO: Retire this script and move the individual tests into the lit
 # framework, to leverage parallel testing and other lit goodness.
 
 set -eux
 
 OPTLEVELS="m1 2"
 OUTDIR=Output
 # Clean the output directory to avoid reusing stale results.
@@ skipping 46 matching lines @@
         --driver=test_global_main.cpp \
         --output=test_global_O${optlevel}
 
     ./crosstest.py -O${optlevel} --prefix=Subzero_ --target=x8632 \
         --dir="${OUTDIR}" \
         --llvm-bin-path="${LLVM_BIN_PATH}" \
         --test=test_icmp.cpp \
         --driver=test_icmp_main.cpp \
         --output=test_icmp_O${optlevel}
 
+    # Compile the non-subzero object files straight from source
+    # since the native LLVM backend does not understand how to
+    # lower NaCl-specific intrinsics.
+    ./crosstest.py -O${optlevel} --prefix=Subzero_ --target=x8632 \
+       --dir="${OUTDIR}" \
+       --llvm-bin-path="${LLVM_BIN_PATH}" \
+       --test=test_sync_atomic.cpp \
+       --crosstest-bitcode=0 \
+       --driver=test_sync_atomic_main.cpp \
+       --output=test_sync_atomic_O${optlevel}
+
 done
 
 for optlevel in ${OPTLEVELS} ; do
     "${OUTDIR}"/simple_loop_O${optlevel}
     "${OUTDIR}"/mem_intrin_O${optlevel}
     "${OUTDIR}"/test_arith_O${optlevel}
     "${OUTDIR}"/test_cast_O${optlevel}
     "${OUTDIR}"/test_fcmp_O${optlevel}
     "${OUTDIR}"/test_global_O${optlevel}
     "${OUTDIR}"/test_icmp_O${optlevel}
+    "${OUTDIR}"/test_sync_atomic_O${optlevel}
 done