aam

import 'dart:math';
import 'dart:io';
import 'dart:isolate';


CountHits(List args) {
  print('${Isolate.current.debugName} $args');
  final from = args[0] as int;
  final to = args[1] as int;
  final sendPort = args[2] as SendPort;

aam

Before OSR:

==== tryosr.dart_::_main (RegularFunction)
B0[graph]:0 <-1:-1>
B1[function entry]:2 <-1:-1>
    CheckStackOverflow:8(stack=0, loop=0)
    DebugStepCheck:10()
    DebugStepCheck:12()
    StoreLocal(x @-8, t0)
    t0 <- LoadLocal(:current_context_var @0)

aam

```
main() {
  var x = 123;
  try {
    try {
      if (x < -1) {
        print('x is negative? impossible');
      }
      while(true) {
        x += 1;

aam

diff --git a/packages/flutter_tools/lib/src/compile.dart b/packages/flutter_tools/lib/src/compile.dart
index 49e224c802..ff79346b68 100644
--- a/packages/flutter_tools/lib/src/compile.dart
+++ b/packages/flutter_tools/lib/src/compile.dart
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'dart:async';
+import 'dart:typed_data';
 

aam

diff --git a/bin/internal/update_dart_sdk.ps1 b/bin/internal/update_dart_sdk.ps1
index 0166dc8e83..f38bec2d95 100644
--- a/bin/internal/update_dart_sdk.ps1
+++ b/bin/internal/update_dart_sdk.ps1
@@ -56,6 +56,7 @@ $dartSdkZip = "$cachePath\$dartZipName"

 Try {
     Import-Module BitsTransfer
+    $ProgressPreference = 'SilentlyContinue'
     Start-BitsTransfer -Source $dartSdkUrl -Destination $dartSdkZip -ErrorAction Stop

aam

// @dart = 2.9

import 'dart:io';
import 'dart:isolate';
import 'dart:async';
import 'package:path/path.dart' as p;


void main(List<String> arguments) async {
  // var a = <int?>[];

aam

reaching type to v5 <- StaticCall:12( _lastNonWhitespace@0150898<0> v2, using unchecked entrypoint, result_type = T{int}) T{int} for v2 is T{_StringBase}
reaching type to v8 <- BinaryInt64Op(+ [tr], v5, v7) T{int} for v5 is T{int}
reaching type to v8 <- BinaryInt64Op(+ [tr], v5, v7) T{int} for v7 is T{_Smi}
reaching type to v11 <- EqualityCompare(v8 == v10) T{bool} for v8 is T{int}
reaching type to v11 <- EqualityCompare(v8 == v10) T{bool} for v10 is T{_Smi}
reaching type to AssertBoolean:18(v11) for v11 is T{bool}
reaching type to Branch if StrictCompare:20(===, v11, v13) goto (3, 4) for v11 is T{bool}
reaching type to Branch if StrictCompare:20(===, v11, v13) goto (3, 4) for v13 is T{bool}
reaching type to v14 <- StaticCall:36( _firstNonWhitespace@0150898<0> v2, using unchecked entrypoint, result_type = T{int}) T{int} for v2 is T{_StringBase}
reaching type to v16 <- InstanceCall:38( codeUnitAt<0>, v2, v14 IC[0: ], result_type = T{_Smi}) T{_Smi} for v2 is T{_StringBase}

aam

*** BEGIN CFG
After AllocateRegisters
==== dart:core_int__parse@0150898
  0: B0[graph]:0 {
      v0 <- Constant(#null) T{Null?}
      v1 <- Constant(#<optimized out>) T{_OneByteString}
      v7 <- Constant(#1) [1, 1] T{_Smi}
      v10 <- Constant(#0) [0, 0] T{_Smi}
      v13 <- Constant(#true) T{bool}
      v18 <- Constant(#43) [43, 43] T{_Smi}

aam

diff --git a/clang-format-diff.py b/clang-format-diff.py
index ffa30e7..9c5bcc5 100755
--- a/clang-format-diff.py
+++ b/clang-format-diff.py
@@ -27,7 +27,7 @@ import difflib
 import re
 import string
 import subprocess
-import StringIO
+import io

aam

FUCHSIA_ROOT=~/p/fuchsia

cd $FH/engine/src

cd flutter
ENGINE_REV=`git log -1 | head -1 | awk '{print $2}'`
cd -

echo at $ENGINE_REV