#!/bin/sh -f

# Apply lowering transformations to a SUIF intermediate file in preparation
# for back-end processing.
#
# do_lower INPUTFILE OUTPUTFILE
#

infile="$1"
outfile="$2"

usage() {
   echo "Usage: $0 INPUTFILE OUTPUTFILE"
   exit 1;
}

if [ -z "$infile" -o -z "$outfile" ]
then
    usage
fi

me=`basename $0`
tmpdir=`dirname $2`

tmp=$tmpdir/$me$$

status=1
trap "rm -f $tmp; exit \$status;" 0 1 2 3 15

cat <<EOF > $tmp
require basicnodes
require suifnodes
require cfenodes
load $infile
require transforms
dismantle_field_access_expressions
dismantle_structured_returns
compact_multi_way_branch_statements
dismantle_scope_statements
dismantle_ifs_and_loops
flatten_statement_lists
rename_colliding_symbols
insert_struct_padding
insert_struct_final_padding
save $outfile
EOF

suifdriver -f $tmp
status=$?
if [ $status != 0 ]
   then echo "$0 failed"
   exit						# trap handler cleans up
fi