Add cross test for vector itofp and fptoi casts.

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
 
 # TODO(stichnot): Use FindBaseNaCl so that the script can be run from
 # anywhere within the native_client directory.
 PATH="../pydir:${PATH}"
@@ skipping 46 matching lines @@
             --dir="${OUTDIR}" \
             --test=test_calling_conv.cpp \
             --driver=test_calling_conv_main.cpp \
             --output=test_calling_conv_O${optlevel}_${attribute}
 
         crosstest.py -O${optlevel} --mattr ${attribute} \
             --prefix=Subzero_ \
             --target=x8632 \
             --dir="${OUTDIR}" \
             --test=test_cast.cpp --test=test_cast_to_u1.ll \
+            --test=test_cast_vectors.ll \
             --driver=test_cast_main.cpp \
             --output=test_cast_O${optlevel}_${attribute}
 
         crosstest.py -O${optlevel} --mattr ${attribute} \
             --prefix=Subzero_ \
             --target=x8632 \
             --dir="${OUTDIR}" \
             --test=test_fcmp.pnacl.ll \
             --driver=test_fcmp_main.cpp \
             --output=test_fcmp_O${optlevel}_${attribute}
@@ skipping 62 matching lines @@
         "${OUTDIR}"/test_cast_O${optlevel}_${attribute}
         "${OUTDIR}"/test_fcmp_O${optlevel}_${attribute}
         "${OUTDIR}"/test_global_O${optlevel}_${attribute}
         "${OUTDIR}"/test_icmp_O${optlevel}_${attribute}
         "${OUTDIR}"/test_select_O${optlevel}_${attribute}
         "${OUTDIR}"/test_stacksave_O${optlevel}_${attribute}
         "${OUTDIR}"/test_sync_atomic_O${optlevel}_${attribute}
         "${OUTDIR}"/test_vector_ops_O${optlevel}_${attribute}
     done
 done