Subzero: Emit functions and global initializers in a separate thread.

pydir/run-llvm2ice.py

 #!/usr/bin/env python2
 
 import argparse
 import itertools
 import os
 import re
 import subprocess
 import sys
 
 from utils import shellcmd
@@ skipping 52 matching lines @@
 
     cmd = []
     if not args.llvm_source:
       cmd = [os.path.join(llvm_bin_path, 'llvm-as'), llfile, '-o', '-', '|',
              os.path.join(llvm_bin_path, 'pnacl-freeze')]
       if not args.no_local_syms:
         cmd += ['--allow-local-symbol-tables']
       cmd += ['|']
     cmd += [args.llvm2ice]
     if args.insts:
-      cmd += ['-verbose', 'inst', '-notranslate']
+      # If the tests are based on '-verbose inst' output, force
+      # single-threaded translation because dump output does not get
+      # reassembled into order.
+      cmd += ['-verbose', 'inst', '-notranslate', '-threads=0']
     if not args.llvm_source:
       cmd += ['--bitcode-format=pnacl']
       if not args.no_local_syms:
         cmd += ['--allow-local-symbol-tables']
     if args.llvm or args.llvm_source:
       cmd += ['--build-on-read=0']
     else:
       cmd += ['--build-on-read=1']
     cmd += args.args
     if args.llvm_source:
       cmd += [llfile]
 
     stdout_result = shellcmd(cmd, echo=args.echo_cmd)
     if not args.echo_cmd:
       sys.stdout.write(stdout_result)
 
 if __name__ == '__main__':
     main()