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Author SHA1 Message Date
asiva@google.com 4b2c10ae32 Added following dart API changes to enable more efficient access based 
on the dartium usage pattern:
- Dart_GetNativeStringArgument (gets a String object, peer etc. directly from
  the native arguments)
- Dart_SetWeakHandleReturnValue (allows a weak handle to be passed to the
  return value, this ensures a new local handle does not have to be created
  from a weak handle just to return a value)
- Dart_StringGetProperties (gets some common properties of a string, avoids
  multiple API calls to set up a native string)

R=srdjan@google.com, vsm@google.com

Review URL: https://codereview.chromium.org//22632010

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@26046 260f80e4-7a28-3924-810f-c04153c831b5
 2013-08-13 01:19:25 +00:00
iposva@google.com 54b3efeede - Remove unused run state from the isolate. 
Review URL: https://codereview.chromium.org//22477005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25909 260f80e4-7a28-3924-810f-c04153c831b5
 2013-08-08 01:02:13 +00:00
johnmccutchan@google.com 7f993f87ee Object ID Ring with tests 
R=iposva@google.com

Review URL: https://codereview.chromium.org//18259014

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25063 260f80e4-7a28-3924-810f-c04153c831b5
 2013-07-16 18:31:25 +00:00
hausner@google.com 1e955965df Better single stepping in VM debugger 
Single stepping now steps into the next dart code that the
user is interested in, including from one asynchronous task
to the next.

R=asiva@google.com

Review URL: https://codereview.chromium.org//17846009

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24632 260f80e4-7a28-3924-810f-c04153c831b5
 2013-07-01 17:29:18 +00:00
asiva@google.com 8e27430ddd - Create isolate specific resuable handles and use them in the hot lookup paths. 
- Create a ResuableHandleScope class which ensures that we do not end up
  recursively reusing handles leading to corruption.

This change shows Dart2JSCompileAll runtime change from 739931 to about
645035 on my local machine.

R=iposva@google.com

Review URL: https://codereview.chromium.org//16174008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24373 260f80e4-7a28-3924-810f-c04153c831b5
 2013-06-24 22:41:01 +00:00
johnmccutchan@google.com b7003f166b Stop unwanted class finalization when using dart:io HttpClient from builtin.dart 
BUG=11232
R=iposva@google.com

Review URL: https://codereview.chromium.org//17503002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24252 260f80e4-7a28-3924-810f-c04153c831b5
 2013-06-20 20:51:14 +00:00
bak@google.com 5cb3b20063 Object histogramin the vm (--print-object-histogram). 
Reviewed and LGTMed in:
https://codereview.chromium.org/16077018/

Review URL: https://codereview.chromium.org//16853006

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23954 260f80e4-7a28-3924-810f-c04153c831b5
 2013-06-13 09:06:43 +00:00
kmillikin@google.com 1248115680 Remove the IC data array from the isolate. 
Thread it as an argument rather than storing it in a global variable.  This
means the programmer does not have to implement a shadow stack to save and
restore the data array, and there is no special handling needed for GC.

R=fschneider@google.com
BUG=

Review URL: https://codereview.chromium.org//15470013

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22982 260f80e4-7a28-3924-810f-c04153c831b5
 2013-05-22 06:21:57 +00:00
vegorov@google.com 2565ca222f Implement a variation of scalar replacement for non-escaping allocations. 
AllocationSinking pass discovers non-escaping allocations that have no input uses other than uses in the stores into its own fields.

Every environment use of such allocation is replaced by a state snapshot (MaterializeObject instruction) that describes the state of each initialized field in the object. State snapshots are computed through an additional round of load-forwarding.

Once snapshots are computed allocations are removed from the graph.

MaterializeObject instructions are not compiled into native code but produce deoptimization instructions instead that describe how object should be materialized at deoptimization.

Deoptimization instructions now follow the following format:

[mat obj #1]...[mat obj #N][ret addr][... mat arguments ...][... real frames ...]

- the prefix describes each object to materialize on deopt via kMaterializeObject instruction;
- actual values that are needed for materialization are emited as a part of bottom-most stack frame. This is done to simplify implementation: they need to be discoverable by a GC during materialization phase. At the end of deoptimization they will be removed from the stack;
- normal stack slots can refer to materialized objects via kMaterializedObjectRef instruction.

Additionally this change contains fixes in load-forwarding that are needed to guarantee that all artificial LoadField instructions inserted during AllocationSinking are correctly replaced with actual values.

Limitations of the current implementation:

- can't eliminate allocations that flow into phis but otherwise don't actually escape;
- can't sink allocations out of loops;
- allocation with type arguments are not handled.

R=regis@google.com, srdjan@google.com, zra@google.com

Review URL: https://codereview.chromium.org//14935005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22485 260f80e4-7a28-3924-810f-c04153c831b5
 2013-05-07 23:40:42 +00:00
asiva@google.com ea5a3919c5 Resubmit 22380 after fixing the windows build. 
R=hausner@google.com

Review URL: https://codereview.chromium.org//14645025

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22396 260f80e4-7a28-3924-810f-c04153c831b5
 2013-05-03 22:50:26 +00:00
iposva@google.com 083c9e5e95 - Remember the fact that an object has been added to the 
store buffer by a bit in the header.
- This bit can be used to filter out redundant additions
  into the store buffer making the dedup sets not needed.
- Remove the need for a HashSet when remembering old to
  new references.

Review URL: https://codereview.chromium.org//14307013

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22393 260f80e4-7a28-3924-810f-c04153c831b5
 2013-05-03 20:59:42 +00:00
asiva@google.com dab8758e7a Revert 22380 to investigate windows build break. 
Review URL: https://codereview.chromium.org//14927003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22382 260f80e4-7a28-3924-810f-c04153c831b5
 2013-05-03 18:26:34 +00:00
asiva@google.com 27e78fb6f8 Second step towards loading core library scripts directly from the sources 
- Modify the library source generator to generate a source mapping array
  The generated array is of the following format:
  const char* dart::Bootstrap::corelib_source_paths_[] = {
    "dart:core", "/workspace1/dart-all/dart/sdk/lib/core/core.dart", 

    "bool.dart", "/workspace1/dart-all/dart/sdk/lib/core/bool.dart", 
    ...
    ...
  };

- Read the source file using the source mapping array instead of relying on
  a generated buffer containing the sources

- Modify the gyp files to ensure that all libraries are read directly
  from the sources. This CL does not change the patch part yet.
  Remove the source concatentation step in the gypi files for all the core
  libraries.

R=hausner@google.com, iposva@google.com

Review URL: https://codereview.chromium.org//14786012

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22380 260f80e4-7a28-3924-810f-c04153c831b5
 2013-05-03 18:12:24 +00:00
tball@google.com 6e3f3040a4 Added a run state field to Isolate, to show when it is executing code. 
Review URL: https://codereview.chromium.org//13932024

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21561 260f80e4-7a28-3924-810f-c04153c831b5
 2013-04-16 17:50:25 +00:00
vegorov@google.com 9f3783186f Ensure that all goto instructions have deoptimization target. 
R=kmillikin@google.com
BUG=

Review URL: https://codereview.chromium.org//12457034

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21351 260f80e4-7a28-3924-810f-c04153c831b5
 2013-04-12 11:19:34 +00:00
iposva@google.com 0d0fcbe7e1 Changelist to land https://codereview.chromium.org/13452007/ for Siva. 
Review URL: https://codereview.chromium.org//13813018

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21160 260f80e4-7a28-3924-810f-c04153c831b5
 2013-04-09 17:51:24 +00:00
tball@google.com 95dfaf1718 Updated VM stacktrace support (20898) with platform- 
independent version of strndup.
Review URL: https://codereview.chromium.org//13587008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20936 260f80e4-7a28-3924-810f-c04153c831b5
 2013-04-04 18:48:24 +00:00
tball@google.com 404dc8ca8b Rollback of 20898 (Windows doesn't support strndup) 
Review URL: https://codereview.chromium.org//13583008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20901 260f80e4-7a28-3924-810f-c04153c831b5
 2013-04-03 22:29:07 +00:00
tball@google.com 94c40f13f3 Added VM support for isolate stacktrace status. 
Review URL: https://codereview.chromium.org//12842015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20898 260f80e4-7a28-3924-810f-c04153c831b5
 2013-04-03 22:03:06 +00:00
tball@google.com 6044627aa6 Rollback stacktrace change. 
Review URL: https://codereview.chromium.org//12894005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20496 260f80e4-7a28-3924-810f-c04153c831b5
 2013-03-25 22:26:37 +00:00
tball@google.com 044a872ba5 Added VM support for isolate stacktrace status. 
Review URL: https://codereview.chromium.org//12578022

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20494 260f80e4-7a28-3924-810f-c04153c831b5
 2013-03-25 22:16:40 +00:00
johnmccutchan@google.com 3d4778e2c2 SIMD plumbing 
Review URL: https://codereview.chromium.org//12871015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20287 260f80e4-7a28-3924-810f-c04153c831b5
 2013-03-20 20:29:00 +00:00
tball@google.com 4c4482e4c7 Initial prototype of vmstats support, based on Dart VM Stats draft design doc. 
Review URL: https://codereview.chromium.org//12221022

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19091 260f80e4-7a28-3924-810f-c04153c831b5
 2013-02-26 22:34:08 +00:00
iposva@google.com c64bb206ec - Make size of the stack red zone depend on word size. 
Review URL: https://codereview.chromium.org//12207142

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18426 260f80e4-7a28-3924-810f-c04153c831b5
 2013-02-13 01:13:02 +00:00
regis@google.com cd746c8172 Initial revision of ARM simulator and (empty) MIPS simulator. 
Review URL: https://codereview.chromium.org//12041056

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17623 260f80e4-7a28-3924-810f-c04153c831b5
 2013-01-25 01:16:35 +00:00
regis@google.com 912194a756 Fix vm code base so that it can be built for --arch=simarm (no snapshot yet). 
Review URL: https://codereview.chromium.org//11956004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17246 260f80e4-7a28-3924-810f-c04153c831b5
 2013-01-18 00:34:20 +00:00
iposva@google.com 3e367a12d8 - Consolidate verbose-gc output to be a single line which can be imported easily into spreadsheets. 
Review URL: https://codereview.chromium.org//11734028

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16624 260f80e4-7a28-3924-810f-c04153c831b5
 2013-01-04 02:15:36 +00:00
kmillikin@google.com a119414b2f Cache lookups at megamorphic call sites in optimized code. 
The function name and argument descriptor are mapped to a lookup cache
at compile time.  The cache maps class id to target function.  It is
resizable.

Review URL: https://codereview.chromium.org//11299298

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15889 260f80e4-7a28-3924-810f-c04153c831b5
 2012-12-10 09:48:52 +00:00
cshapiro@google.com f5c4d7a381 Unify specification of file open, close, and write callbacks. 
Review URL: https://codereview.chromium.org//11442024

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15807 260f80e4-7a28-3924-810f-c04153c831b5
 2012-12-06 21:56:31 +00:00
tball@google.com bf5f0db5d0 Added support for isolate unhandled exceptions. 
BUG=

Review URL: https://codereview.chromium.org//11413101

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15352 260f80e4-7a28-3924-810f-c04153c831b5
 2012-11-26 23:31:47 +00:00
iposva@google.com 332bfdc7d6 - Remove obsolete random number generator from the VM code. 
Review URL: https://codereview.chromium.org//11417049

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15058 260f80e4-7a28-3924-810f-c04153c831b5
 2012-11-19 06:12:32 +00:00
tball@google.com 76d7c9b105 Renamed Zone->StackZone, BaseZone->Zone, in preparation for changing isolate->get_zone() to return what was called the BaseZone instead of its wrapper. The GetBaseZone() methods were not renamed, to help the next CL. 
BUG=

Review URL: https://codereview.chromium.org//11040062

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@13314 260f80e4-7a28-3924-810f-c04153c831b5
 2012-10-05 19:52:55 +00:00
fschneider@google.com 6632f191c4 Support for unboxed 64-bit integer bitwise operations and equality on ia32. 
This CL adds AND, OR, XOR and == operations on unboxed 64-bit integers
(aka. mints).

Unboxed mints are stored in xmm registers. Each xmm register location
has an additional bit to keep track of its value representation.

Unboxed mints are materialized on the heap on deoptmization in the same way as
unboxed doubles.

The SSE instructions used are available on all CPUs that support SSE 4.1.
Review URL: https://codereview.chromium.org//10968059

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@13112 260f80e4-7a28-3924-810f-c04153c831b5
 2012-10-02 11:25:53 +00:00
vegorov@google.com a573d2dec8 Unbox phis that were proven to be of type Double. 
Eliminate Boxing/Unboxing pairs.

Allow boxing, unboxing and double binary operations to participate in CSE.

Allow double comparisons to operate on unboxed inputs.

Support XMM registers and double spill slots in deoptimization.

Save XMM registers when calling to runtime from WriteBarrier stub.

R=srdjan@google.com
BUG=

Review URL: https://chromiumcodereview.appspot.com//10919008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11652 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-30 20:39:48 +00:00
srdjan@google.com b7f043bc6b Replace deopt stubs location/register shuffling with using deopt-info. Added deopt instruction commands. Also fixes a crash in IA32 with use_ssa where the stack is incorrect after deoptimization. Tested IA32 with and without use-ssa. 
Review URL: https://chromiumcodereview.appspot.com//10825236

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10469 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-09 23:46:38 +00:00
regis@google.com 6f5281c404 Get rid of ast node ids. 
Rename cid to deopt_id.
Review URL: https://chromiumcodereview.appspot.com//10832150

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10306 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-06 20:24:03 +00:00
regis@google.com ba83d02f9e Add type propagation phase in optimizing compiler (work in progress). 
Remove unused cid field from Instruction node and add it to nodes subclassing
Instruction that need it: BranchInstr, ReturnInstr, ThrowInstr, ReThrowInstr.
Remove unused icdata field from Instruction node and add it to BranchInstr.
Review URL: https://chromiumcodereview.appspot.com//10830109

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10125 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-01 17:15:55 +00:00
srdjan@google.com ac8041f15d First step toward deoptimization using deoptimization info: splits deoptimization into two steps: copy frame to buffer, fill unoptimized frame from buffer. The only changes in the frame are the return address and the PC marker. 
Second step will add deoptimization info 'instructions' that will fill the unoptimized frames using the saved registers and frame data.
Review URL: https://chromiumcodereview.appspot.com//10836020

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10071 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-31 17:27:15 +00:00
asiva@google.com ec7f44f025 Create frequently used symbols in the vm isolate 
- Avoids the need for doing a NewSymbol on these everytime
- saves space as they get shared by isolates
Review URL: https://chromiumcodereview.appspot.com//10783035

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9834 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-24 00:01:50 +00:00
iposva@google.com 7f843b0fc9 - Start using the collected store buffer entries to find 
old->new references during Scavenge.
Review URL: https://chromiumcodereview.appspot.com//10797021

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9791 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-20 21:41:55 +00:00
iposva@google.com 65d96de4e8 - Separate store buffer data in the isolate into the StoreBufferBlock and 
the actual StoreBuffer.
- Add a HashSet class to use for the StoreBuffer data.
- Fix allocation sites for definite old objects.
- Remove obsolete leaf runtime entry StoreBuffer.
Review URL: https://chromiumcodereview.appspot.com//10702067

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9323 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-03 00:10:23 +00:00
turnidge@google.com 3f940819a7 Add a callback to inform embedders when an isolate is being shut down. 
Review URL: https://chromiumcodereview.appspot.com//10450016

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9211 260f80e4-7a28-3924-810f-c04153c831b5
 2012-06-28 18:15:17 +00:00
iposva@google.com dbd08016de - Inline the store buffer update into a stub instead of 
calling out into the C++ runtime.
Review URL: https://chromiumcodereview.appspot.com//10578046

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8929 260f80e4-7a28-3924-810f-c04153c831b5
 2012-06-20 18:05:51 +00:00
asiva@google.com 4027727562 For now set the stack buffer size to 16k (we need to compute this during thread start and store it in the worker object instead of the current scheme of setting this up in HandleMessage). 
Adjust stack size to 512KB as all tests seem to run with that limit.
Review URL: https://chromiumcodereview.appspot.com//10558013

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8754 260f80e4-7a28-3924-810f-c04153c831b5
 2012-06-15 23:32:47 +00:00
asiva@google.com d7aafffcd8 Have the stack overflow code use the correct stack size set by the platform/thread.h 
Review URL: https://chromiumcodereview.appspot.com//10544170

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8703 260f80e4-7a28-3924-810f-c04153c831b5
 2012-06-15 01:28:53 +00:00
srdjan@google.com b11999d58c Fix stack sizes (kDefaultStackSize to 64kB, and kStackSizeBuffer to 4kb) to be able to catch stack overflows. 
Review URL: https://chromiumcodereview.appspot.com//10539174

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8701 260f80e4-7a28-3924-810f-c04153c831b5
 2012-06-15 00:56:25 +00:00
vegorov@google.com 858b6d53e1 In generated code for ia32 don't load object's class directly from class_ field. 
Instead look it up in class table by class index taken from object's tags.

Review URL: https://chromiumcodereview.appspot.com//10447064

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8101 260f80e4-7a28-3924-810f-c04153c831b5
 2012-05-30 12:25:49 +00:00
srdjan@google.com 92b9e64375 Adding collected type feedback to the IL nodes (only in optimized mode). 
Review URL: https://chromiumcodereview.appspot.com//10378093

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7509 260f80e4-7a28-3924-810f-c04153c831b5
 2012-05-10 19:04:09 +00:00
srdjan@google.com 137c0167e7 Switch from AST node ids to computation ids (cid). In addition to computations, some instructions need it as well (Return, Throw, ReThrow). Currently added to all Instructions and Computations. 
Review URL: https://chromiumcodereview.appspot.com//10264031

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7205 260f80e4-7a28-3924-810f-c04153c831b5
 2012-05-01 21:23:00 +00:00
iposva@google.com d8c7c1ada6 - Add a class index to the classes. 
- Add a class table which assigns individual ids to classes.
Review URL: https://chromiumcodereview.appspot.com//9965042

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7183 260f80e4-7a28-3924-810f-c04153c831b5
 2012-05-01 09:20:40 +00:00