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4 Commits

Author SHA1 Message Date
asiva@google.com 80e281a078 Fix for issues 6080 - 
- Read the saved context from the entry frame when straddling across C++ frames while iterating over a stack trace in the debugger. This ensures that the correct context is setup in the ActivationFrame structure in these scenarios (instead of the empty context).

- Read the saved context from the caller's frame when iterating over a stack trace in the debugger. The compiler saves the context in the caller frame before invoking closures, we read this saved context when iterating the stack trace.
Review URL: https://codereview.chromium.org//12179020

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18235 260f80e4-7a28-3924-810f-c04153c831b5
 2013-02-07 22:43:16 +00:00
asiva@google.com 3107319e40 Simplify representation of stack frames. Remove the special types DartFrame/StubFrame and instead use StackFrame with methods IsDartFrame and IsStubFrame for frames representing Dart or Stub Code. This eliminates all the complexity that was added to ensure that we always see only one stub frame before hitting a dart frame during iteration. 
Fixes bug 6380625 which was another case when we had two stub frames before hitting the dart frame.
Review URL: https://chromiumcodereview.appspot.com//10173008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6920 260f80e4-7a28-3924-810f-c04153c831b5
 2012-04-25 01:15:28 +00:00
kmillikin@google.com 41e77a0a9e Initial implementation of a flow-graph builder for Dart's AST. 
Visit the AST and generate an instruction (ie, not basic-block) flow
graph.

The flow graph for the simple function:

main() {
  var f = 1;
  var n = 5;
  while (n > 0) {
    f = f * n;
    n = n - 1;
  }
  print(f);
}

is:

       1: StoreLocal(f, #1)
       2: StoreLocal(n, #5)
       3: [join]
       4: t0 <-LoadLocal(n)
       5: t0 <-InstanceCall(>, t0, #0)
       6: if t0 goto(7, 15)
       7: [target]
       8: t0 <-LoadLocal(f)
       9: t1 <-LoadLocal(n)
      10: t0 <-InstanceCall(*, t0, t1)
      11: StoreLocal(f, t0)
      12: t0 <-LoadLocal(n)
      13: t0 <-InstanceCall(-, t0, #1)
      14: StoreLocal(n, t0) goto 3
      15: [target]
      16: t0 <-LoadLocal(f)
      17: StaticCall(print, t0)
      18: return #null

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com//9414003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4460 260f80e4-7a28-3924-810f-c04153c831b5
 2012-02-22 15:20:13 +00:00
dgrove@google.com 4c0f559d23 Initial checkin. 
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15 260f80e4-7a28-3924-810f-c04153c831b5
 2011-10-05 05:20:07 +00:00