move llvm opt debug messages

emcc

@@ -1050,7 +1050,6 @@ try:
   if not LEAVE_INPUTS_RAW:
     link_opts = [] if keep_debug else ['-strip-debug']
     if llvm_opts > 0:
-      if DEBUG: print >> sys.stderr, 'emcc: LLVM -O%d' % llvm_opts
       shared.Building.llvm_opt(in_temp(target_basename + '.bc'), llvm_opts)
       if DEBUG: save_intermediate('opt', 'bc')
       # Do LTO in a separate pass to work around LLVM bug XXX (see failure e.g. in cubescript)
@@ -1063,7 +1062,6 @@ try:
       else:
         # At minimum remove dead functions etc., this potentially saves a lot in the size of the generated code (and the time to compile it)
         link_opts += shared.Building.get_safe_internalize() + ['-globaldce']
-      if DEBUG: print >> sys.stderr, 'emcc: LLVM linktime:', link_opts
       shared.Building.llvm_opt(in_temp(target_basename + '.bc'), link_opts)
       if DEBUG: save_intermediate('linktime', 'bc')
 

tools/shared.py

@@ -819,6 +819,7 @@ def ll_opts(filename):
   def llvm_opt(filename, opts):
     if type(opts) is int:
       opts = Building.pick_llvm_opts(opts)
+    if DEBUG: print >> sys.stderr, 'emcc: LLVM opts:', opts
     output = Popen([LLVM_OPT, filename] + opts + ['-o=' + filename + '.opt.bc'], stdout=PIPE).communicate()[0]
     assert os.path.exists(filename + '.opt.bc'), 'Failed to run llvm optimizations: ' + output
     shutil.move(filename + '.opt.bc', filename)