diff --git a/wasm/test/bench.sh b/wasm/test/bench.sh
index 4a1e3b065..ed15666ba 100755
--- a/wasm/test/bench.sh
+++ b/wasm/test/bench.sh
@@ -20,7 +20,7 @@ bench() {
   ../../ocamlopt $UNSAFE -O3 ./${2}.ml > /dev/null
   # optimize wasocaml code
   cat a.out.wat | grep -v "^ (export" > a.out.noexport.wat
-  WASMOPT="wasm-opt --enable-gc --enable-reference-types --enable-multivalue --enable-tail-call --enable-nontrapping-float-to-int --traps-never-happen -O3 --abstract-type-refining --cfp --coalesce-locals --closed-world --type-ssa --gufa-optimizing --type-merging --strip-debug --strip-dwarf --strip-producers --strip-target-features --type-refining --unsubtyping --vacuum --tuple-optimization --ssa --simplify-locals --simplify-globals-optimizing --signature-refining --signature-pruning --roundtrip --reorder-locals --reorder-globals --reorder-functions --remove-unused-types --remove-unused-names --remove-unused-module-elements --remove-unused-brs --remove-memory --precompute --optimize-instructions --optimize-casts --once-reduction --monomorphize --minimize-rec-groups --merge-similar-functions --merge-locals --merge-blocks --local-subtyping --local-cse --licm --intrinsic-lowering --inlining-optimizing --heap-store-optimization --gto --gsi --global-refining --duplicate-import-elimination --duplicate-function-elimination --directize --dce --dae-optimizing"
+  WASMOPT="wasm-opt --enable-gc --enable-reference-types --enable-multivalue --enable-tail-call --enable-nontrapping-float-to-int --traps-never-happen -O3 --abstract-type-refining --cfp --coalesce-locals --closed-world --type-ssa --gufa-optimizing --type-merging --strip-debug --strip-dwarf --strip-producers --strip-target-features --type-refining --unsubtyping --vacuum --tuple-optimization --ssa --simplify-locals --simplify-globals-optimizing --signature-refining --signature-pruning --roundtrip --reorder-locals --reorder-globals --reorder-functions --remove-unused-types --remove-unused-names --remove-unused-module-elements --remove-unused-brs --remove-memory --precompute --optimize-instructions --optimize-casts --once-reduction --monomorphize --minimize-rec-groups --merge-similar-functions --merge-locals --merge-blocks --local-subtyping --local-cse --licm --intrinsic-lowering --inlining-optimizing --heap-store-optimization --gto --gsi --global-refining --duplicate-import-elimination --duplicate-function-elimination --directize --dce --dae-optimizing -O3 -O3 --gufa -O3 -O3 --gufa -O3 -O3 --converge --abstract-type-refining --cfp --coalesce-locals --closed-world --type-ssa --gufa-optimizing --type-merging --strip-debug --strip-dwarf --strip-producers --strip-target-features --type-refining --unsubtyping --vacuum --tuple-optimization --ssa --simplify-locals --simplify-globals-optimizing --signature-refining --signature-pruning --roundtrip --reorder-locals --reorder-globals --reorder-functions --remove-unused-types --remove-unused-names --remove-unused-module-elements --remove-unused-brs --remove-memory --precompute --optimize-instructions --optimize-casts --once-reduction --monomorphize --minimize-rec-groups --merge-similar-functions --merge-locals --merge-blocks --local-subtyping --local-cse --licm --intrinsic-lowering --inlining-optimizing --heap-store-optimization --gto --gsi --global-refining --duplicate-import-elimination --duplicate-function-elimination --directize --dce --dae-optimizing -O3 -O3 --gufa -O3 -O3 -O3 -O3 -O3 -O3 -O3"
   # TODO: try --flatten ; --rereloop ; --precompute-propagate ; --dfo
   $WASMOPT -o a.out.wasm a.out.noexport.wat
   # compile bytecode
@@ -42,14 +42,11 @@ bench() {
 }
 
 
-#bench "Almabench" "almabench" # global init must have correct type
-#bench "Boyer" "boyer" # unreachable
-#bench "Boyer no exceptions" "boyer_no_exc" # unreachable
-#bench "Fast Fourier Transform" "fft" # unreachable
+#bench "Boyer" "boyer" # unreachable: caml_compare_blocks
+#bench "Boyer no exceptions" "boyer_no_exc" # unreachable: caml_compare_blocks
 #bench "Hamming" "hamming" # missing value let-rec
 #bench "Ray-Trace" "raytrace" # global init must have correct type
-#bench "Splay Tree" "splay" # wrong result
-
+#bench "Splay Tree" "splay" # string_of_float is not supported
 
 bench "Binary Decision Diagram" "bdd"
 bench "Binary Trees" "binary_trees" # seems wrong if we uncomment the check print in loop_depths ?
@@ -64,3 +61,8 @@ bench "Quicksort" "quicksort"
 bench "Soli" "soli"
 bench "Takc" "takc"
 bench "Taku" "taku"
+
+# bench "Almabench" "almabench" # requires --disable-flat-float-array, otherwise: global init must have correct type
+# bench "Fast Fourier Transform" "fft" # requires --disable-flat-float-array illegal cast on float array, see comment in file
+
+# bench "Pascal" "pascal" # not part of the wsoo bench suite
diff --git a/wasm/test/test.sh b/wasm/test/test.sh
index c5267d9f9..8577b8dac 100755
--- a/wasm/test/test.sh
+++ b/wasm/test/test.sh
@@ -22,10 +22,10 @@ bench_wasocaml_opt() {
   echo -n "    Wasocaml + wasm-opt (node): "
   ../../ocamlopt $UNSAFE -O3 ./${2}.ml > /dev/null
   cat a.out.wat | grep -v "^ (export" > a.out.noexport.wat
-  WASMOPT="wasm-opt --enable-gc --enable-reference-types --enable-multivalue --enable-tail-call --enable-nontrapping-float-to-int --traps-never-happen -O3 --abstract-type-refining --cfp --coalesce-locals --closed-world --type-ssa --gufa-optimizing --type-merging --strip-debug --strip-dwarf --strip-producers --strip-target-features --type-refining --unsubtyping --vacuum --tuple-optimization --ssa --simplify-locals --simplify-globals-optimizing --signature-refining --signature-pruning --roundtrip --reorder-locals --reorder-globals --reorder-functions --remove-unused-types --remove-unused-names --remove-unused-module-elements --remove-unused-brs --remove-memory --precompute --optimize-instructions --optimize-casts --once-reduction --monomorphize --minimize-rec-groups --merge-similar-functions --merge-locals --merge-blocks --local-subtyping --local-cse --licm --intrinsic-lowering --inlining-optimizing --heap-store-optimization --gto --gsi --global-refining --duplicate-import-elimination --duplicate-function-elimination --directize --dce --dae-optimizing"
+  WASMOPT="wasm-opt --enable-gc --enable-reference-types --enable-multivalue --enable-tail-call --enable-nontrapping-float-to-int --traps-never-happen -O3 --abstract-type-refining --cfp --coalesce-locals --closed-world --type-ssa --gufa-optimizing --type-merging --strip-debug --strip-dwarf --strip-producers --strip-target-features --type-refining --unsubtyping --vacuum --tuple-optimization --ssa --simplify-locals --simplify-globals-optimizing --signature-refining --signature-pruning --roundtrip --reorder-locals --reorder-globals --reorder-functions --remove-unused-types --remove-unused-names --remove-unused-module-elements --remove-unused-brs --remove-memory --precompute --optimize-instructions --optimize-casts --once-reduction --monomorphize --minimize-rec-groups --merge-similar-functions --merge-locals --merge-blocks --local-subtyping --local-cse --licm --intrinsic-lowering --inlining-optimizing --heap-store-optimization --gto --gsi --global-refining --duplicate-import-elimination --duplicate-function-elimination --directize --dce --dae-optimizing -O3 -O3 --gufa -O3 -O3 --gufa -O3 -O3 --converge --abstract-type-refining --cfp --coalesce-locals --closed-world --type-ssa --gufa-optimizing --type-merging --strip-debug --strip-dwarf --strip-producers --strip-target-features --type-refining --unsubtyping --vacuum --tuple-optimization --ssa --simplify-locals --simplify-globals-optimizing --signature-refining --signature-pruning --roundtrip --reorder-locals --reorder-globals --reorder-functions --remove-unused-types --remove-unused-names --remove-unused-module-elements --remove-unused-brs --remove-memory --precompute --optimize-instructions --optimize-casts --once-reduction --monomorphize --minimize-rec-groups --merge-similar-functions --merge-locals --merge-blocks --local-subtyping --local-cse --licm --intrinsic-lowering --inlining-optimizing --heap-store-optimization --gto --gsi --global-refining --duplicate-import-elimination --duplicate-function-elimination --directize --dce --dae-optimizing -O3 -O3 --gufa -O3 -O3 -O3 -O3 -O3 -O3 -O3"
   # TODO: try --flatten ; --rereloop ; --precompute-propagate ; --dfo
   $WASMOPT -o a.out.wasm a.out.noexport.wat
-  $WASMOPT -S -o a.out.wat a.out.wasm
+  $WASMOPT --print-stack-ir -o a.out.bis.wat a.out.wasm > a.out.wat
   time $NODE ./main_node.mjs > output_${2}_wasocaml_opt.txt
   diff output_${2}_ocaml_native.txt output_${2}_wasocaml_opt.txt
 }
@@ -71,17 +71,14 @@ bench() {
   bench_wasocaml_opt "${1}" "${2}"
   #bench_wasocaml "${1}" "${2}"
   bench_wsoo "${1}" "${2}"
-  bench_jsoo "${1}" "${2}"
-  bench_bytecode "${1}" "${2}"
+  #bench_jsoo "${1}" "${2}"
+  #bench_bytecode "${1}" "${2}"
 
   echo ""
 }
 
-#bench "Pascal" "pascal"
-#bench "Almabench" "almabench" # global init must have correct type
 #bench "Boyer" "boyer" # unreachable: caml_compare_blocks
 #bench "Boyer no exceptions" "boyer_no_exc" # unreachable: caml_compare_blocks
-#bench "Fast Fourier Transform" "fft" # illegal cast on float array, see comment in file
 #bench "Hamming" "hamming" # missing value let-rec
 #bench "Ray-Trace" "raytrace" # global init must have correct type
 #bench "Splay Tree" "splay" # string_of_float is not supported
@@ -92,10 +89,15 @@ bench "Fibonacci" "fib"
 bench "Knuth-Bendix" "kb"
 bench "Knuth-Bendix (no exception)" "kb_no_exc"
 bench "Loop" "loop"
-#bench "Nucleic" "nucleic" # wsoo crash on this one..
+bench "Nucleic" "nucleic" # wsoo crash on this one..
 bench "Pfannkuchen" "fannkuch"
 bench "Pfannkuchen 2" "fannkuch2"
 bench "Quicksort" "quicksort"
 bench "Soli" "soli"
 bench "Takc" "takc"
 bench "Taku" "taku"
+
+# bench "Almabench" "almabench" # requires --disable-flat-float-array, otherwise: global init must have correct type
+# bench "Fast Fourier Transform" "fft" # requires --disable-flat-float-array illegal cast on float array, see comment in file
+
+# bench "Pascal" "pascal" # not part of the wsoo bench suite