-opt1=opt.$bc1
-opt2=opt.$bc2
-ll1=${bc1}.ll
-ll2=${bc2}.ll
-dir1="/proj/llvm/llvm-test-1/External/SPEC/CINT2000/300.twolf"
-opt1="/proj/llvm/llvm-1/Debug/bin/opt"
-dis1="/proj/llvm/llvm-1/Debug/bin/llvm-dis"
-dir2="/proj/llvm/llvm-test-2/External/SPEC/CINT2000/300.twolf"
-opt2="/proj/llvm/llvm-2/Debug/bin/opt"
-dis2="/proj/llvm/llvm-2/Debug/bin/llvm-dis"
-bcfile="Output/300.twolf.linked.rbc"
-optll="opt.ll"
+opt1="${bc1}.opt"
+opt2="${bc2}.opt"
+ll1="${bc1}.ll"
+ll2="${bc2}.ll"
+opt1ll="${bc1}.opt.ll"
+opt2ll="${bc2}.opt.ll"
+dis1="$llvm1/Debug/bin/llvm-dis"
+dis2="$llvm2/Debug/bin/llvm-dis"
+opt1="$llvm1/Debug/bin/opt"
+opt2="$llvm2/Debug/bin/opt"