Subzero: Change the name llvm2ice to the more appropriate pnacl-sz.

pydir/crosstest.py

 #!/usr/bin/env python2
 
 import argparse
 import os
 import re
 import subprocess
 import sys
 import tempfile
 
 from utils import shellcmd
@@ skipping 84 matching lines @@
             for line in ll_lines:
                 line = remove_internal.sub('define ', line)
                 line = fix_target.sub('i686-pc-linux-gnu', line)
                 f.write(line)
             f.close()
 
         base_sz = '%s.O%s.%s.%s' % (base, args.optlevel, args.attr, args.target)
         asm_sz = os.path.join(args.dir, base_sz + '.sz.s')
         obj_sz = os.path.join(args.dir, base_sz + '.sz.o')
         obj_llc = os.path.join(args.dir, base + '.llc.o')
-        shellcmd(['../llvm2ice',
+        shellcmd(['../pnacl-sz',
                   '-O' + args.optlevel,
                   '-mattr=' + args.attr,
                   '--target=' + args.target,
                   '--prefix=' + args.prefix,
                   '-allow-uninitialized-globals',
                   '-filetype=' + args.filetype,
                   '-o=' + (obj_sz if args.filetype == 'obj' else asm_sz),
                   bitcode])
         if args.filetype != 'obj':
             shellcmd(['llvm-mc',
@@ skipping 29 matching lines @@
             objs.append(bitcode)
 
     objs.append((
             '{root}/toolchain_build/src/subzero/build/runtime/' +
             'szrt_native_x8632.o'
             ).format(root=nacl_root))
     linker = 'clang' if pure_c else 'clang++'
     shellcmd([linker, '-g', '-m32', args.driver] +
              objs +
              ['-lm', '-lpthread', '-o', os.path.join(args.dir, args.output)])