far smaller assmbly

build.cm

@@ -489,6 +489,9 @@ function compile_native_batched(il_parts, cc, tmp_prefix) {
   var ai = 0
   var rc = null
   var parallel_cmd = null
+  var helpers_il = (il_parts.helpers && length(il_parts.helpers) > 0)
+    ? text(il_parts.helpers, "\n") : ""
+  var prefix = null
 
   if (nfuncs < nbatch) nbatch = nfuncs
   if (nbatch < 1) nbatch = 1
@@ -501,7 +504,9 @@ function compile_native_batched(il_parts, cc, tmp_prefix) {
       batch_fns[] = il_parts.functions[fi]
       fi = fi + 1
     }
-    batch_il = il_parts.data + "\n\n" + text(batch_fns, "\n")
+    // Batch 0 includes helper functions; others reference them as external symbols
+    prefix = (bi == 0 && helpers_il != "") ? helpers_il + "\n\n" : ""
+    batch_il = il_parts.data + "\n\n" + prefix + text(batch_fns, "\n")
     asm_text = os.qbe(batch_il)
     s_path = tmp_prefix + '_b' + text(bi) + '.s'
     o_path = tmp_prefix + '_b' + text(bi) + '.o'
@@ -595,7 +600,6 @@ Build.compile_native = function(src_path, target, buildtype, pkg) {
     sym_name = shop.c_symbol_for_file(pkg, fd.basename(src_path))
   }
   var il_parts = qbe_emit(optimized, qbe_macros, sym_name)
-  var il = il_parts.data + "\n\n" + text(il_parts.functions, "\n")
 
   // Content hash for cache key
   var hash = content_hash(src + '\n' + _target + '\nnative')