DBC: Adds simdbc64 target, adds arm64 arithmetic overflow logic

tools/gyp/configurations.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'common_gcc_warning_flags': [
       '-Wall',
       '-Wextra', # Also known as -W.
       '-Wno-unused-parameter',
     ],
 
     # Default value.  This may be overridden in a containing project gyp.
     'target_arch%': 'ia32',
 
     'conditions': [
       ['"<(target_arch)"=="ia32"', { 'dart_target_arch': 'IA32', }],
       ['"<(target_arch)"=="x64"', { 'dart_target_arch': 'X64', }],
       ['"<(target_arch)"=="arm"', { 'dart_target_arch': 'ARM', }],
       ['"<(target_arch)"=="armv6"', { 'dart_target_arch': 'ARMV6', }],
       ['"<(target_arch)"=="armv5te"', { 'dart_target_arch': 'ARMV5TE', }],
       ['"<(target_arch)"=="arm64"', { 'dart_target_arch': 'ARM64', }],
       ['"<(target_arch)"=="simarm"', { 'dart_target_arch': 'SIMARM', }],
       ['"<(target_arch)"=="simarmv6"', { 'dart_target_arch': 'SIMARMV6', }],
       ['"<(target_arch)"=="simarmv5te"', { 'dart_target_arch': 'SIMARMV5TE', }],
       ['"<(target_arch)"=="simarm64"', { 'dart_target_arch': 'SIMARM64', }],
       ['"<(target_arch)"=="mips"', { 'dart_target_arch': 'MIPS', }],
       ['"<(target_arch)"=="simmips"', { 'dart_target_arch': 'SIMMIPS', }],
       ['"<(target_arch)"=="simdbc"', { 'dart_target_arch': 'SIMDBC', }],
+      ['"<(target_arch)"=="simdbc64"', { 'dart_target_arch': 'SIMDBC64', }],
       [ 'OS=="linux"', { 'dart_target_os': 'Linux', } ],
       [ 'OS=="mac"', { 'dart_target_os': 'Macos', } ],
       [ 'OS=="win"', { 'dart_target_os': 'Win', } ],
       # The OS is set to "android" only when we are building Dartium+Clank. We
       # use 'chrome_target_os' so that Release and Debug configurations inherit
       # from Android configurations when OS=="android". If OS is not set to
       # Android, then Release and Debug inherit from the usual configurations.
       [ 'OS=="android"', { 'chrome_target_os': 'Android',},
                          { 'chrome_target_os': '',}],
     ],
@@ skipping 339 matching lines @@
 
       'ReleaseSIMDBC': {
         'inherit_from': [
           'Dart_Base', 'Dart_simdbc_Base', 'Dart_Release',
           'Dart_<(dart_target_os)_Base',
           'Dart_<(dart_target_os)_simdbc_Base',
           'Dart_<(dart_target_os)_Release',
         ],
       },
 
+      'DebugSIMDBC64': {
+        'inherit_from': [
+          'Dart_Base', 'Dart_simdbc_Base', 'Dart_Debug',
+          'Dart_<(dart_target_os)_Base',
+          'Dart_<(dart_target_os)_simdbc64_Base',
+          'Dart_<(dart_target_os)_Debug',
+        ],
+        'defines': [
+          'DEBUG',
+        ],
+      },
+
+      'ReleaseSIMDBC64': {
+        'inherit_from': [
+          'Dart_Base', 'Dart_simdbc_Base', 'Dart_Release',
+          'Dart_<(dart_target_os)_Base',
+          'Dart_<(dart_target_os)_simdbc64_Base',
+          'Dart_<(dart_target_os)_Release',
+        ],
+      },
+
       # ARM and MIPS hardware configurations are only for Linux and Android.
       'DebugXARM': {
         'inherit_from': [
           'Dart_Base', 'Dart_arm_Base', 'Dart_Debug',
           'Dart_Linux_Base',
           'Dart_Linux_xarm_Base',
           'Dart_Linux_Debug',
         ],
       },
 
@@ skipping 364 matching lines @@
 
       'ProductAndroidARM64': {
         'inherit_from': [
           'Dart_Base', 'Dart_arm64_Base', 'Dart_Product',
           'Dart_Android_Base',
           'Dart_Android_arm64_Base',
           'Dart_Android_Product',
         ],
       },
 
+      'DebugAndroidSIMDBC': {
+        'inherit_from': [
+          'Dart_Base', 'Dart_simdbc_Base', 'Dart_Debug',
+          'Dart_Android_Base',
+          # Default SIMDBC on Android targets arm.
+          'Dart_Android_arm_Base',
+          'Dart_Android_Debug',
+        ],
+        'defines': [
+          'DEBUG',
+        ],
+      },
+
+      'ReleaseAndroidSIMDBC': {
+        'inherit_from': [
+          'Dart_Base', 'Dart_simdbc_Base', 'Dart_Release',
+          'Dart_Android_Base',
+          # Default SIMDBC on Android targets arm.
+          'Dart_Android_arm_Base',
+          'Dart_Android_Release',
+        ],
+      },
+
+      'DebugAndroidSIMDBC64': {
+        'inherit_from': [
+          'Dart_Base', 'Dart_simdbc_Base', 'Dart_Debug',
+          'Dart_Android_Base',
+          # Default SIMDBC on Android targets arm64.
+          'Dart_Android_arm64_Base',
+          'Dart_Android_Debug',
+        ],
+        'defines': [
+          'DEBUG',
+        ],
+      },
+
+      'ReleaseAndroidSIMDBC64': {
+        'inherit_from': [
+          'Dart_Base', 'Dart_simdbc_Base', 'Dart_Release',
+          'Dart_Android_Base',
+          # Default SIMDBC on Android targets arm64.
+          'Dart_Android_arm64_Base',
+          'Dart_Android_Release',
+        ],
+      },
+
       # These targets assume that target_arch is passed in explicitly
       # by the containing project (e.g., chromium).
       'Debug': {
         'inherit_from': ['Debug<(chrome_target_os)<(dart_target_arch)']
       },
 
       'Release': {
         'inherit_from': ['Release<(chrome_target_os)<(dart_target_arch)']
       },
 
       'conditions': [
         # On Windows ninja generator has hardcorded configuration naming
         # patterns and it expects that x64 configurations are named smth_x64.
         # This is a workaround for the crash that these expectations cause.
         [ 'OS=="win" and GENERATOR=="ninja"', {
           'DebugX64_x64': {
             'inherit_from': [ 'DebugX64' ]
           },
 
           'ReleaseX64_x64': {
             'inherit_from': [ 'ReleaseX64' ]
           },
         }],
       ],
     },
   },
 }