Update gc branch to bleeding_edge revision 8862.

SConstruct

 # Copyright 2011 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 418 matching lines @@
   'msvc': {
     'all': {
       'CPPDEFINES': ['_HAS_EXCEPTIONS=0'],
       'LIBS': ['winmm', 'ws2_32']
     },
     'arch:ia32': {
       'CPPDEFINES': ['V8_TARGET_ARCH_IA32']
     },
     'arch:x64': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_X64'],
-      'LINKFLAGS': ['/STACK:2091752']
+      'LINKFLAGS': ['/STACK:2097152']
     },
   }
 }
 
 
 SAMPLE_FLAGS = {
   'all': {
     'CPPPATH': [join(abspath('.'), 'include')],
     'library:shared': {
       'CPPDEFINES': ['USING_V8_SHARED']
@@ skipping 144 matching lines @@
       'pgo:optimize': {
         'LINKFLAGS':    ['/LTCG:PGO']
       }
     },
     'arch:ia32': {
       'CPPDEFINES': ['V8_TARGET_ARCH_IA32', 'WIN32'],
       'LINKFLAGS': ['/MACHINE:X86']
     },
     'arch:x64': {
       'CPPDEFINES': ['V8_TARGET_ARCH_X64', 'WIN32'],
-      'LINKFLAGS': ['/MACHINE:X64', '/STACK:2091752']
+      'LINKFLAGS': ['/MACHINE:X64', '/STACK:2097152']
     },
     'mode:debug': {
       'CCFLAGS':    ['/Od'],
       'LINKFLAGS':  ['/DEBUG'],
       'CPPDEFINES': ['DEBUG'],
       'msvcrt:static': {
         'CCFLAGS':  ['/MTd']
       },
       'msvcrt:shared': {
         'CCFLAGS':  ['/MDd']
@@ skipping 134 matching lines @@
       'pgo:optimize': {
         'LINKFLAGS':    ['/LTCG:PGO']
       }
     },
     'arch:ia32': {
       'CPPDEFINES': ['V8_TARGET_ARCH_IA32', 'WIN32'],
       'LINKFLAGS': ['/MACHINE:X86']
     },
     'arch:x64': {
       'CPPDEFINES': ['V8_TARGET_ARCH_X64', 'WIN32'],
-      'LINKFLAGS': ['/MACHINE:X64', '/STACK:2091752']
+      'LINKFLAGS': ['/MACHINE:X64', '/STACK:2097152']
     },
     'mode:debug': {
       'CCFLAGS':    ['/Od'],
       'LINKFLAGS':  ['/DEBUG'],
       'CPPDEFINES': ['DEBUG'],
       'msvcrt:static': {
         'CCFLAGS':  ['/MTd']
       },
       'msvcrt:shared': {
         'CCFLAGS':  ['/MDd']
@@ skipping 45 matching lines @@
     'compress_startup_data:bz2': {
       'CPPDEFINES':   ['COMPRESS_STARTUP_DATA_BZ2'],
       'os:linux': {
         'LIBS': ['bz2']
       }
     }
   },
   'msvc': {
     'all': {
       'LIBS': ['winmm', 'ws2_32']
+    },
+    'verbose:off': {
+      'CCFLAGS': ['/nologo'],
+      'LINKFLAGS': ['/NOLOGO']
+    },
+    'verbose:on': {
+      'LINKFLAGS': ['/VERBOSE']
+    },
+    'prof:on': {
+      'LINKFLAGS': ['/MAP']
+    },
+    'mode:release': {
+      'CCFLAGS':   ['/O2'],
+      'LINKFLAGS': ['/OPT:REF', '/OPT:ICF'],
+      'msvcrt:static': {
+        'CCFLAGS': ['/MT']
+      },
+      'msvcrt:shared': {
+        'CCFLAGS': ['/MD']
+      },
+      'msvcltcg:on': {
+        'CCFLAGS':      ['/GL'],
+        'pgo:off': {
+          'LINKFLAGS':    ['/LTCG'],
+        },
+      },
+      'pgo:instrument': {
+        'LINKFLAGS':    ['/LTCG:PGI']
+      },
+      'pgo:optimize': {
+        'LINKFLAGS':    ['/LTCG:PGO']
+      }
+    },
+    'arch:ia32': {
+      'CPPDEFINES': ['V8_TARGET_ARCH_IA32', 'WIN32'],
+      'LINKFLAGS': ['/MACHINE:X86']
+    },
+    'arch:x64': {
+      'CPPDEFINES': ['V8_TARGET_ARCH_X64', 'WIN32'],
+      'LINKFLAGS': ['/MACHINE:X64', '/STACK:2097152']
+    },
+    'mode:debug': {
+      'CCFLAGS':    ['/Od'],
+      'LINKFLAGS':  ['/DEBUG'],
+      'CPPDEFINES': ['DEBUG'],
+      'msvcrt:static': {
+        'CCFLAGS':  ['/MTd']
+      },
+      'msvcrt:shared': {
+        'CCFLAGS':  ['/MDd']
+      }
     }
   }
 }
 
 
 SUFFIXES = {
   'release': '',
   'debug': '_g'
 }
 
@@ skipping 501 matching lines @@
     library_name += '-' + version
 
   # Generate library SONAME if required by the build.
   if context.options['soname'] == 'on':
     soname = GetSpecificSONAME()
     if soname == '':
       soname = 'lib' + library_name + '.so'
     env['SONAME'] = soname
 
   # Build the object files by invoking SCons recursively.
+  d8_env = Environment(tools=tools)
+  d8_env.Replace(**context.flags['d8'])
   (object_files, shell_files, mksnapshot, preparser_files) = env.SConscript(
     join('src', 'SConscript'),
     build_dir=join('obj', target_id),
-    exports='context tools',
+    exports='context tools d8_env',
     duplicate=False
   )
 
   context.mksnapshot_targets.append(mksnapshot)
 
   # Link the object files into a library.
   env.Replace(**context.flags['v8'])
 
   context.ApplyEnvOverrides(env)
   if context.options['library'] == 'static':
     library = env.StaticLibrary(library_name, object_files)
     preparser_library = env.StaticLibrary(preparser_library_name,
                                           preparser_files)
   else:
     # There seems to be a glitch in the way scons decides where to put
     # PDB files when compiling using MSVC so we specify it manually.
     # This should not affect any other platforms.
     pdb_name = library_name + '.dll.pdb'
     library = env.SharedLibrary(library_name, object_files, PDB=pdb_name)
     preparser_pdb_name = preparser_library_name + '.dll.pdb';
     preparser_soname = 'lib' + preparser_library_name + '.so';
     preparser_library = env.SharedLibrary(preparser_library_name,
                                           preparser_files,
                                           PDB=preparser_pdb_name,
                                           SONAME=preparser_soname)
   context.library_targets.append(library)
   context.library_targets.append(preparser_library)
 
-  d8_env = Environment(tools=tools)
-  d8_env.Replace(**context.flags['d8'])
   context.ApplyEnvOverrides(d8_env)
   if context.options['library'] == 'static':
     shell = d8_env.Program('d8' + suffix, object_files + shell_files)
   else:
     shell = d8_env.Program('d8' + suffix, shell_files)
     d8_env.Depends(shell, library)
   context.d8_targets.append(shell)
 
   for sample in context.samples:
     sample_env = Environment(tools=tools)
@@ skipping 86 matching lines @@
 # version of scons.  Also, there's a bug in some revisions that
 # doesn't allow this flag to be set, so we swallow any exceptions.
 # Lovely.
 try:
   SetOption('warn', 'no-deprecated')
 except:
   pass
 
 
 Build()