diff --git a/pkg/vm/tool/dart_precompiled_runtime2 b/pkg/vm/tool/dart_precompiled_runtime2
index d8c490a23ef..eeb33e39f4d 100755
--- a/pkg/vm/tool/dart_precompiled_runtime2
+++ b/pkg/vm/tool/dart_precompiled_runtime2
@@ -36,4 +36,5 @@ BIN_DIR="$OUT_DIR$DART_CONFIGURATION"
 exec "$BIN_DIR"/dart_precompiled_runtime               \
      --strong                                          \
      --reify-generic-functions                         \
+     --limit-ints-to-64-bits                           \
      "$@"
diff --git a/pkg/vm/tool/gen_kernel b/pkg/vm/tool/gen_kernel
index 5b960477282..e5687b8efdc 100755
--- a/pkg/vm/tool/gen_kernel
+++ b/pkg/vm/tool/gen_kernel
@@ -8,6 +8,13 @@
 
 set -e
 
+# Enable Dart 2.0 fixed-size integers for gen_kernel if running in strong mode.
+for arg in "$@"; do
+  if [ "$arg" == "--strong-mode" ]; then
+    DART_VM_FLAGS="--limit-ints-to-64-bits $DART_VM_FLAGS"
+  fi
+done
+
 function follow_links() {
   file="$1"
   while [ -h "$file" ]; do
@@ -35,4 +42,4 @@ else
   OUT_DIR="$SDK_DIR/out"
 fi
 
-exec "$DART" "${SDK_DIR}/pkg/vm/bin/gen_kernel.dart" $@
+exec "$DART" $DART_VM_FLAGS "${SDK_DIR}/pkg/vm/bin/gen_kernel.dart" $@
diff --git a/pkg/vm/tool/precompiler2 b/pkg/vm/tool/precompiler2
index a3aee3af229..faf92c07fbb 100755
--- a/pkg/vm/tool/precompiler2
+++ b/pkg/vm/tool/precompiler2
@@ -67,7 +67,9 @@ export DART_CONFIGURATION=${DART_CONFIGURATION:-ReleaseX64}
 BIN_DIR="$OUT_DIR/$DART_CONFIGURATION"
 
 # Step 1: Generate Kernel binary from the input Dart source.
-"$BIN_DIR"/dart "${SDK_DIR}/pkg/vm/bin/gen_kernel.dart"                        \
+"$BIN_DIR"/dart                                                                \
+     --limit-ints-to-64-bits                                                   \
+     "${SDK_DIR}/pkg/vm/bin/gen_kernel.dart"                                   \
      --platform "${BIN_DIR}/vm_platform_strong.dill"                           \
      --aot                                                                     \
      $PACKAGES                                                                 \
@@ -78,6 +80,7 @@ BIN_DIR="$OUT_DIR/$DART_CONFIGURATION"
 exec "$BIN_DIR"/dart_bootstrap                                                 \
      --strong                                                                  \
      --reify-generic-functions                                                 \
+     --limit-ints-to-64-bits                                                   \
      --snapshot-kind=app-aot                                                   \
      --use-blobs                                                               \
      --snapshot="$SNAPSHOT_FILE"                                               \
diff --git a/runtime/tests/vm/vm.status b/runtime/tests/vm/vm.status
index 407b338d60a..63981da9489 100644
--- a/runtime/tests/vm/vm.status
+++ b/runtime/tests/vm/vm.status
@@ -67,9 +67,6 @@ cc/IsolateReload_KernelIncrementalCompileGenerics: Skip
 cc/Mixin_PrivateSuperResolution: Skip
 cc/Mixin_PrivateSuperResolutionCrossLibraryShouldFail: Skip
 
-[ $compiler == dartkp ]
-dart/truncating_ints_test: CompileTimeError # Issue 31339
-
 [ $compiler == precompiler ]
 dart/byte_array_test: Skip # Incompatible flag --disable_alloc_stubs_after_gc
 
@@ -353,6 +350,9 @@ dart/snapshot_version_test: RuntimeError # Please triage.
 dart/spawn_infinite_loop_test: Crash # Please triage.
 dart/truncating_ints_test: CompileTimeError # Please triage.
 
+[ $compiler == dartkp && !$strong ]
+dart/truncating_ints_test: Skip # This test cannot be run in dartkp/legacy mode (gen_kernel does not pass --limit-ints-to-64-bits in legacy mode).
+
 [ $compiler == dartkp && ($runtime == dart_precompiled || $runtime == vm) ]
 dart/data_uri_import_test/base64: CompileTimeError
 dart/data_uri_import_test/nocharset: CompileTimeError
diff --git a/tests/corelib_2/corelib_2.status b/tests/corelib_2/corelib_2.status
index 033f5d85da6..30ccbe777b4 100644
--- a/tests/corelib_2/corelib_2.status
+++ b/tests/corelib_2/corelib_2.status
@@ -63,13 +63,6 @@ symbol_test/01: MissingCompileTimeError
 symbol_test/02: MissingCompileTimeError
 symbol_test/03: MissingCompileTimeError
 
-[ $compiler == dartkp ]
-bit_twiddling_test/int64: CompileTimeError # Issue 31339
-integer_to_radix_string_test/01: CompileTimeError # Issue 31339
-integer_to_radix_string_test/02: CompileTimeError # Issue 31339
-integer_to_string_test/01: CompileTimeError # Issue 31339
-num_sign_test: CompileTimeError, Crash # Issue 31339
-
 [ $compiler == precompiler ]
 int_parse_radix_test: Pass, Timeout # --no_intrinsify
 integer_parsed_mul_div_vm_test: Pass, Timeout # --no_intrinsify
@@ -463,15 +456,6 @@ symbol_test/03: MissingCompileTimeError
 symbol_test/none: RuntimeError
 unicode_test: RuntimeError
 
-# Enabling of dartk for sim{arm,arm64,dbc64} revelaed these test failures, which
-# are to be triaged.  Isolate tests are skipped on purpose due to the usage of
-# batch mode.
-[ $compiler == dartk && $strong && ($arch == simarm || $arch == simarm64 || $arch == simdbc64) ]
-bit_twiddling_test/int64: CompileTimeError # Please triage.
-integer_to_radix_string_test/02: CompileTimeError # Please triage.
-integer_to_string_test/01: CompileTimeError # Please triage.
-num_sign_test: CompileTimeError # Please triage.
-
 # ===== dartkp + dart_precompiled status lines =====
 [ $compiler == dartkp && $runtime == dart_precompiled && $strong ]
 bool_from_environment2_test/03: MissingCompileTimeError
@@ -686,7 +670,7 @@ regexp/pcre_test: Pass, Slow, Timeout
 
 [ $runtime == dart_precompiled || $runtime == vm ]
 integer_parsed_arith_vm_test/01: RuntimeError # Issue 31346
-integer_parsed_arith_vm_test/02: RuntimeError # Issue 31369
+integer_parsed_arith_vm_test/02: RuntimeError # Issue 31346
 integer_parsed_div_rem_vm_test/01: RuntimeError # Issue 31346
 integer_to_radix_string_test/01: RuntimeError # Issue 31346
 string_split_test: RuntimeError # does not return List<String>
diff --git a/tests/corelib_2/integer_parsed_arith_vm_test.dart b/tests/corelib_2/integer_parsed_arith_vm_test.dart
index 7ce266cbec5..d3e273d0acc 100644
--- a/tests/corelib_2/integer_parsed_arith_vm_test.dart
+++ b/tests/corelib_2/integer_parsed_arith_vm_test.dart
@@ -65,9 +65,9 @@ testAddSub() {
       one, // 64 bit overflow.                      //# 01: continued
       "-0x8000000000000000"); //                    //# 01: continued
   addSubParsed( //                                  //# 02: ok
-      "0xFFFFFFFFFFFFFFFF", //                      //# 02: continued
+      minus_one, //                                 //# 02: continued
       one, // 64 bit overflow.                      //# 02: continued
-      "0"); //                                      //# 02: continued
+      zero); //                                     //# 02: continued
   addSubParsed(
       "0x8000000", // 28 bit overflow.
       "0x8000000",
@@ -81,9 +81,9 @@ testAddSub() {
       "0x80000000000000",
       "0x100000000000000");
   addSubParsed( //                                  //# 02: continued
-      "0x8000000000000000", // 64 bit overflow.     //# 02: continued
-      "0x8000000000000000", //                      //# 02: continued
-      "0"); //                                      //# 02: continued
+      "-0x8000000000000000", // 64 bit overflow.    //# 02: continued
+      "-0x8000000000000000", //                     //# 02: continued
+      zero); //                                     //# 02: continued
 
   addSubParsed("-0x123", minus_one, "-0x124");
   addSubParsed(minus_one, "-0x123", "-0x124");
diff --git a/tests/language_2/language_2_kernel.status b/tests/language_2/language_2_kernel.status
index fbe1059c7f7..88b177b6b81 100644
--- a/tests/language_2/language_2_kernel.status
+++ b/tests/language_2/language_2_kernel.status
@@ -12,14 +12,9 @@
 # ===== Skip dartk and darkp in !$strong mode ====
 
 [ $compiler == dartkp ]
-bit_operations_test: CompileTimeError # Issue 31339
 generic_no_such_method_dispatcher_test: RuntimeError # Issue 31424
-identical_closure2_test: CompileTimeError # Issue 31339
-mint_arithmetic_test: CompileTimeError # Issue 31339
 mock_writable_final_field_test: RuntimeError # Issue 31424
 no_such_method_subtype_test: RuntimeError # Issue 31424
-vm/unaligned_integer_access_literal_index_test: CompileTimeError # Issue 31339
-vm/unaligned_integer_access_register_index_test: CompileTimeError # Issue 31339
 
 [ $compiler == dartk && $mode == debug && $runtime == vm && $strong ]
 bad_named_parameters_test/01: Crash # Issue(http://dartbug.com/31630)
@@ -1197,9 +1192,6 @@ wrong_number_type_arguments_test/none: Pass
 # are to be triaged.  Isolate tests are skipped on purpose due to the usage of
 # batch mode.
 [ $compiler == dartk && $strong && ($arch == simarm || $arch == simarm64 || $arch == simdbc64) ]
-bit_operations_test/03: CompileTimeError # Please triage.
-bit_operations_test/04: CompileTimeError # Please triage.
-bit_operations_test/none: CompileTimeError # Please triage.
 class_cycle_test/02: MissingCompileTimeError # Please triage.
 class_cycle_test/03: MissingCompileTimeError # Please triage.
 duplicate_implements_test/01: MissingCompileTimeError # Please triage.
@@ -1207,15 +1199,11 @@ duplicate_implements_test/02: MissingCompileTimeError # Please triage.
 duplicate_implements_test/03: MissingCompileTimeError # Please triage.
 duplicate_implements_test/04: MissingCompileTimeError # Please triage.
 generic_methods_generic_function_result_test/01: MissingCompileTimeError # Please triage.
-identical_closure2_test: CompileTimeError # Please triage.
 issue23244_test: RuntimeError # Please triage.
 least_upper_bound_expansive_test/none: RuntimeError # Please triage.
-mint_arithmetic_test: CompileTimeError # Please triage.
 mixin_black_listed_test/02: MissingCompileTimeError # Please triage.
 null_test/02: MissingCompileTimeError # Please triage.
 null_test/03: MissingCompileTimeError # Please triage.
-vm/unaligned_integer_access_literal_index_test: CompileTimeError # Please triage.
-vm/unaligned_integer_access_register_index_test: CompileTimeError # Please triage.
 
 [ $compiler == dartk && !$strong ]
 *: SkipByDesign # language_2 is only supported in strong mode.
@@ -1969,8 +1957,6 @@ instanceof4_test/none: RuntimeError
 instantiate_tearoff_after_contravariance_check_test: CompileTimeError
 instantiate_tearoff_of_call_test: CompileTimeError
 instantiate_tearoff_test: CompileTimeError
-int64_literal_test/03: MissingCompileTimeError # http://dartbug.com/31479
-int64_literal_test/30: MissingCompileTimeError # http://dartbug.com/31479
 interface_test/00: MissingCompileTimeError
 invocation_mirror2_test: SkipByDesign
 invocation_mirror_invoke_on2_test: SkipByDesign
diff --git a/tests/lib_2/lib_2_kernel.status b/tests/lib_2/lib_2_kernel.status
index 1ca7690878e..315dbeb4cb2 100644
--- a/tests/lib_2/lib_2_kernel.status
+++ b/tests/lib_2/lib_2_kernel.status
@@ -10,9 +10,6 @@
 # missing a section you need, please reach out to sigmund@ to see the best way
 # to add them.
 
-[ $compiler == dartkp ]
-typed_data/int32x4_arithmetic_test/int64: CompileTimeError # Issue 31339
-
 [ $arch == x64 && $compiler == dartk && $mode == debug && $runtime == vm && $strong ]
 mirrors/invocation_fuzz_test: Skip # Because it times out, issue 29439.
 mirrors/variable_is_const_test/01: Crash
@@ -396,7 +393,6 @@ mirrors/invocation_fuzz_test/smi: CompileTimeError # Please triage.
 mirrors/invocation_fuzz_test/string: CompileTimeError # Please triage.
 mirrors/library_uri_io_test: CompileTimeError # Please triage.
 mirrors/spawn_function_root_library_test: Skip
-typed_data/int32x4_arithmetic_test/int64: CompileTimeError # Please triage.
 
 # ===== Skip dartk and darkp in !$strong mode ====
 [ $compiler == dartk && !$strong ]
diff --git a/tests/standalone_2/constant_left_shift_test.dart b/tests/standalone_2/constant_left_shift_test.dart
index c3072c1246d..5f87650577e 100644
--- a/tests/standalone_2/constant_left_shift_test.dart
+++ b/tests/standalone_2/constant_left_shift_test.dart
@@ -38,7 +38,7 @@ main() {
   Expect.equals(2305843009213693952, shiftLeft1(61));
   // Deoptimize on 64 bits.
   Expect.equals(4611686018427387904, shiftLeft1(62));
-  Expect.equals(9223372036854775808, shiftLeft1(63));
+  Expect.equals(-9223372036854775808, shiftLeft1(63));
 
   Expect.equals(8448, shiftLeft8448(0));
   Expect.equals(1081344, shiftLeft8448(7));
diff --git a/tests/standalone_2/int_array_test.dart b/tests/standalone_2/int_array_test.dart
index f4a3c626c1b..30d326ac9b5 100644
--- a/tests/standalone_2/int_array_test.dart
+++ b/tests/standalone_2/int_array_test.dart
@@ -115,7 +115,7 @@ void testUint64ToSmi() {
   intArray[0] = 4611686018427387903; // SmiMax
   intArray[1] = -1; // 0xFFFFFFFFFFFFFFFF : 18446744073709551615
   intArray[2] = 4611686018427387904; // SmiMax+1
-  intArray[3] = 9223372036854775808;
+  intArray[3] = -9223372036854775808;
   var x = intArray[0];
   var y = intArray[1];
   var z = intArray[2];
@@ -123,7 +123,7 @@ void testUint64ToSmi() {
   Expect.equals(4611686018427387903, x);
   Expect.equals(-1, y);
   Expect.equals(4611686018427387904, z);
-  Expect.equals(9223372036854775808, w);
+  Expect.equals(-9223372036854775808, w);
 }
 
 main() {
diff --git a/tests/standalone_2/medium_integer_test.dart b/tests/standalone_2/medium_integer_test.dart
index 26a62b030f8..28532f9b43e 100644
--- a/tests/standalone_2/medium_integer_test.dart
+++ b/tests/standalone_2/medium_integer_test.dart
@@ -28,7 +28,7 @@ class MediumIntegerTest {
     Expect.equals(1234567890123456791, a + b);
     Expect.equals(1234567890123456791, b + a);
     a = 9223372036854775807;
-    Expect.equals(9223372036854775808, a + 1);
+    Expect.equals(-9223372036854775808, a + 1);
 
     // Mint and Mint.
     a = 100000000000000001;
diff --git a/tests/standalone_2/standalone_2_kernel.status b/tests/standalone_2/standalone_2_kernel.status
index c3efe4bdc3b..c7e70619b70 100644
--- a/tests/standalone_2/standalone_2_kernel.status
+++ b/tests/standalone_2/standalone_2_kernel.status
@@ -10,11 +10,6 @@
 # missing a section you need, please reach out to sigmund@ to see the best way
 # to add them.
 
-[ $compiler == dartkp ]
-bytedata_test: CompileTimeError # Issue 31339
-typed_array_int64_uint64_test: CompileTimeError, Crash # Issue 31339
-typed_data_view_test: CompileTimeError # Issue 31339
-
 [ $compiler == dartk && $mode == debug && $runtime == vm && $strong ]
 io/file_lock_test: Slow, Pass
 io/raw_socket_test: Crash
@@ -47,7 +42,6 @@ regress_29350_test/none: Pass # Issue 31537
 # are to be triaged.  Isolate tests are skipped on purpose due to the usage of
 # batch mode.
 [ $compiler == dartk && $strong && ($arch == simarm || $arch == simarm64 || $arch == simdbc64) ]
-bytedata_test: CompileTimeError # Please triage.
 io/echo_server_stream_test: Skip # Uses isolates which don't work in batch mode.
 io/file_blocking_lock_test: Pass, Crash # Please triage.
 io/file_lock_test: RuntimeError # Please triage.
@@ -72,10 +66,8 @@ package/scenarios/packages_option_only/packages_option_only_test: CompileTimeErr
 regress_26031_test: RuntimeError # Please triage.
 regress_28854_1_test: RuntimeError # Please triage.
 regress_28854_2_test: RuntimeError # Please triage.
-typed_array_int64_uint64_test: CompileTimeError # Please triage.
 typed_array_test: RuntimeError # Please triage.
 typed_data_isolate_test: RuntimeError # Please triage.
-typed_data_view_test: CompileTimeError # Please triage.
 
 # ===== Skip dartk and darkp in !$strong mode ====
 [ $compiler == dartk && !$strong ]
diff --git a/tools/testing/dart/compiler_configuration.dart b/tools/testing/dart/compiler_configuration.dart
index be504f660ea..73470e54919 100644
--- a/tools/testing/dart/compiler_configuration.dart
+++ b/tools/testing/dart/compiler_configuration.dart
@@ -1044,6 +1044,13 @@ abstract class VMKernelCompilerMixin {
     ];
     args.add(arguments.where((name) => name.endsWith('.dart')).single);
 
+    if (_isStrong) {
+      // Pass environment variable to the gen_kernel script as
+      // arguments are not passed if gen_kernel runs in batch mode.
+      environmentOverrides = new Map.from(environmentOverrides);
+      environmentOverrides['DART_VM_FLAGS'] = '--limit-ints-to-64-bits';
+    }
+
     return Command.vmKernelCompilation(dillFile, true, bootstrapDependencies(),
         genKernel, args, environmentOverrides);
   }