df2054dae7
Sets a register aside on x64 for use as a pool-pointer. It is loaded and restored from the code object on Frame entry and exit. All LoadObject calls that can, and many calls and jumps through ExternalLabels now use the pool-pointer. The --compiler-stats flag when running dart2js indicates that code size is reduced ~13%, and more is probably possible.
...
R=fschneider@google.com , srdjan@google.com
Review URL: https://codereview.chromium.org//22825023
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@27295 260f80e4-7a28-3924-810f-c04153c831b5
2013-09-09 15:39:26 +00:00
cfab482b84
Follow-up fix to my change to IsPowerOfTwo: Alignment of one means no alignment, not zero.
...
We assert that the alignment is a power of two. Therefore, platforms that do not need
alignment should return alignment of one instead of zero.
R=kmillikin@google.com
Review URL: https://codereview.chromium.org//23745008
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@27037 260f80e4-7a28-3924-810f-c04153c831b5
2013-09-03 10:56:43 +00:00
8171570100
Fix the previously ineffective assert checking the number of arguments passed to
...
a runtime entry in the VM.
R=asiva@google.com
Review URL: https://codereview.chromium.org//23672011
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@26826 260f80e4-7a28-3924-810f-c04153c831b5
2013-08-28 23:07:14 +00:00
b4d9e0d620
Auto create ApiLocalScope before calling native functions, this ensures that
...
native functions do not have to call Dart_EnterScope/Dart_ExitScope
when they callback into the VM.
Remove Dart_EnterScope/Dart_ExitScope calls around native functions in 'bin'
directory.
R=regis@google.com , srdjan@google.com
Review URL: https://codereview.chromium.org//22303002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25827 260f80e4-7a28-3924-810f-c04153c831b5
2013-08-06 19:27:48 +00:00
3933db4a7b
Simplify allocation stub for closures.
...
The compiler never generates code for allocating implicit static closures
using the allocation stub.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//21067002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25573 260f80e4-7a28-3924-810f-c04153c831b5
2013-07-29 16:56:39 +00:00
5781d7cc84
Collect both arguments for math's min/max static functions. Later that information will be used to inline the operation if possible.
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R=regis@google.com
Review URL: https://codereview.chromium.org//19774007
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25225 260f80e4-7a28-3924-810f-c04153c831b5
2013-07-19 16:49:29 +00:00
624fb4cf59
Cleanup: remove argument descriptor parameter when calling inline cache miss handler.
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R=zra@google.com
Review URL: https://codereview.chromium.org//19547003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@25162 260f80e4-7a28-3924-810f-c04153c831b5
2013-07-18 18:15:29 +00:00
1e955965df
Better single stepping in VM debugger
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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
0656d300ef
Split IdenticalWithNumberCheck in two versions: once called from unoptimized code the other called from optimzied code. Only the one for unoptimized code will be able to stop for single stepping. The optimized version is a leaf stub and cannot cause GC.
...
R=hausner@google.com
Review URL: https://codereview.chromium.org//18130004
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24557 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-27 21:52:49 +00:00
5ffa56b798
Fix and simplify invocation of noSuchMethod on all platforms after the wrong
...
number (or bad name) of arguments is passed.
The frame of the wrong method (the one invoked with the wrong number or name of
arguments) is not left on the stack and therefore not visible in the stack trace
anymore, which is much cleaner, especially since the leftover frame was not
fully initialized.
This change was already done on ARM.
R=zra@google.com
Review URL: https://codereview.chromium.org//17857008
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24485 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-26 19:58:49 +00:00
fa7817bf79
Change static calls in unoptimized code to always call via a stub. Using ICData, the call count of static calls is collected as well.
...
TODO: Use call frequency to guide inlining.
R=asiva@google.com , hausner@google.com , zra@google.com
Review URL: https://codereview.chromium.org//17554003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24307 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-21 23:35:10 +00:00
47de186e76
Store arguments descriptor in ICData. Remove loading of arguments descriptor at unoptimized call site (the ones using ICData).
...
R=asiva@google.com , zra@google.com
Review URL: https://codereview.chromium.org//17421003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24239 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-20 16:29:39 +00:00
3e78b2ad4a
Reapply "Initial implementation of on-stack replacement (OSR)."
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This reapplies SVN r24024 with a bugfix.
After OSR compilation, restore the pre-OSR code (which might be already
optimized) rather than the unoptimized code (which might have its entry
patched). When the optimized code entry is patched it is only safe to call
it as a static call, not as an instance call.
R=fschneider@google.com
Review URL: https://codereview.chromium.org//17233003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24088 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-17 11:05:15 +00:00
d6f3eccdf2
Revert "Initial implementation of on-stack replacement (OSR)."
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This reverts commit 24024.
TBR=fschneider@google.com
Review URL: https://codereview.chromium.org//16888013
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24025 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-14 10:30:53 +00:00
0b39927d30
Initial implementation of on-stack replacement (OSR).
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Add profiling support to select OSR candidates and launch the compiler
for OSR, followed by entry to the function at the OSR entry point.
Implemented only on IA32 and X64. The initial implementation can be
improved in various ways --- specifically: tuning of profiling
parameters and incorporation of feedback about the actual values seen
at OSR entry.
R=fschneider@google.com
Review URL: https://codereview.chromium.org//16693006
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@24024 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-14 10:10:55 +00:00
8f62a87598
Switch code generation on ARM from softfp ABI to hardfp ABI.
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Support leaf float runtime calls in ARM simulator.
Enable previously failing tests.
R=zra@google.com
Review URL: https://codereview.chromium.org//16638012
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23868 260f80e4-7a28-3924-810f-c04153c831b5
2013-06-11 16:47:01 +00:00
4b497b0c17
Consolidate debug stubs
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The new debug stub BreakpointRuntime gets the original stub address
from the debugger. With this scheme, we don't need a new debug stub
for every runtime stub that the debugger patches.
R=asiva@google.com
Review URL: https://codereview.chromium.org//15743019
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23094 260f80e4-7a28-3924-810f-c04153c831b5
2013-05-23 18:42:03 +00:00
7349a6d611
Make breakpoints on == fire reliably
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Add breakpoints in the path taken if one of the operands
in a == b is null.
R=asiva@google.com
Review URL: https://codereview.chromium.org//14991010
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22857 260f80e4-7a28-3924-810f-c04153c831b5
2013-05-17 17:08:09 +00:00
9e867eb4a1
Make deoptimization architecture dependent (it depends on the frame layout).
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R=srdjan@google.com , zra@google.com
Review URL: https://codereview.chromium.org//15110003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22719 260f80e4-7a28-3924-810f-c04153c831b5
2013-05-14 23:23:54 +00:00
80c7ad1070
Implement breakpoint for closure calls
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Introduce a new PcDescriptor kind to distinguish closure calls from other runtime calls. The debugger can patch these calls to set a breakpoint. When stepping into a closure call, the debugger must fish out the closure object from the stack, find the function and set breakpoints in it.
Arm and Mips breakpoint stubs are not implemented yet. ia32 and x64 stubs tested by hand. Automated test to follow.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//14858033
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22596 260f80e4-7a28-3924-810f-c04153c831b5
2013-05-10 21:06:04 +00:00
2565ca222f
Implement a variation of scalar replacement for non-escaping allocations.
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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
53347a3337
Remove stack_frame_<arch>.cc files.
...
The architecture specific information is in stack_frame_<arch>.h files.
R=srdjan@google.com
Review URL: https://codereview.chromium.org//14925005
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22470 260f80e4-7a28-3924-810f-c04153c831b5
2013-05-07 18:06:21 +00:00
083c9e5e95
- Remember the fact that an object has been added to the
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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
f2cfdc25d0
- Disassociate old page size from new allocatable size.
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- Have a different cutoff for large page allocations
and default old page size.
- Do not align old pages to old page size.
- Do not track used space during marking.
Review URL: https://codereview.chromium.org//14190014
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@22064 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-26 06:57:29 +00:00
52a0f3c983
Enable api tests on ARM.
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Disable generation of optimized code on ARM and MIPS.
Review URL: https://codereview.chromium.org//14476009
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21972 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-24 18:55:52 +00:00
b59deaa17a
Merge JumpToErrorHandler and JumpToExceptionHandler stubs on all architectures.
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Review URL: https://codereview.chromium.org//13874010
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21689 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-18 18:32:06 +00:00
d79c7c1969
Implement long jump in ARM and MIPS simulators.
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Implement error and exception handler stubs on ARM.
Hook up simulator for object tests.
Enable codegen and object tests on ARM.
Review URL: https://codereview.chromium.org//14309004
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21680 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-18 16:23:25 +00:00
ea04c34362
Uncomment more vm tests on ARM (and some on MIPS too).
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Implement context allocation stub.
Some cleanup.
Review URL: https://codereview.chromium.org//14323003
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21626 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-17 16:02:02 +00:00
5b6c0ba820
Rename InvocationMirror to Invocation.
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Review URL: https://codereview.chromium.org//14049009
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@21465 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-15 15:42:44 +00:00
05e2ba9540
Support FrameLookup vm test on ARM, requiring among other things:
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Maintain a separate top_exit_frame_info for simulated frames and use it to
verify that longjumps are safe.
Make sure unwinding of scopes works in the presence of a simulator.
Support inline allocation of objects.
Support checking of inline cache and instance calls.
Support subtype test cache.
Support (some) equality checks.
Support for (some) conditional branches.
Support for pool pointer setup in stubs.
Review URL: https://codereview.chromium.org//13502002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20890 260f80e4-7a28-3924-810f-c04153c831b5
2013-04-03 20:17:14 +00:00
3d4778e2c2
SIMD plumbing
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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
1b274ff2cf
Remove the barely used macro assemblers after merging their contents to the base
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assemblers.
Review URL: https://codereview.chromium.org//12398029
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19434 260f80e4-7a28-3924-810f-c04153c831b5
2013-03-05 00:04:32 +00:00
163db76189
Hook up simulator (if needed) when calling Dart code.
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Merge identical InvokeDynamic and InvokeStatic to InvokeFunction.
Remove redundant argument from InvokeClosure.
Review URL: https://codereview.chromium.org//12315087
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18994 260f80e4-7a28-3924-810f-c04153c831b5
2013-02-25 19:30:29 +00:00
80e281a078
Fix for issues 6080 -
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- 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
912194a756
Fix vm code base so that it can be built for --arch=simarm (no snapshot yet).
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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
04fc29c7e1
Optimize function at its entry instead of at exit.
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The code can be patched if it should not be executed any longer.
The code can be now patched at other location than at entry, the requirement is still that patching code does not overwrite an inlined object.
Intrinsic methods that do not have a fall through cannot be patched.
Review URL: https://codereview.chromium.org//11783066
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16897 260f80e4-7a28-3924-810f-c04153c831b5
2013-01-10 00:28:57 +00:00
4c069867e4
- Make Boolean 'true' and 'false' singleton VM isolate objects.
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- Change all uses of it
Review URL: https://codereview.chromium.org//11745022
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16623 260f80e4-7a28-3924-810f-c04153c831b5
2013-01-04 01:52:05 +00:00
7022b39e35
Convert all symbol accessors to return read only handles so that it is not necessary to create a new handle in the code that uses it.
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Added a few more strings to the symbols list.
Review URL: https://codereview.chromium.org//11667012
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16584 260f80e4-7a28-3924-810f-c04153c831b5
2013-01-02 19:31:59 +00:00
2c6de68680
Changed the API in DartEntry for invoking dart code from C++ to make it more compatible with the requirements of the runtime.
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Deleted all the code duplication that was added to circumvent the old DartEntry API requirements.
Review URL: https://codereview.chromium.org//11613009
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16288 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-18 21:36:01 +00:00
1610d7d2ac
Refactor the InstanceFunctionLookupStub.
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The stub is used in the case that an IC miss handler cannot find a
cacheable target. It handles implicit closures, calls to instance
fields, and no such method.
Refactor the stub to make a single call into the runtime.
BUG=
Review URL: https://codereview.chromium.org//11316353
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16057 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-12 19:52:47 +00:00
697550b2a2
Support call operator in the vm.
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Review URL: https://codereview.chromium.org//11316343
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16009 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-12 00:48:58 +00:00
6749a3be79
Add read only handles for the following predefined symbols
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"=="
"[]"
"[]="
"this"
and use them in the code.
Review URL: https://codereview.chromium.org//11519006
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15942 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-11 01:20:02 +00:00
3b1dfe51d1
Pass the proper invocation mirror argument to noSuchMethod.
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Review URL: https://codereview.chromium.org//11523002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15939 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-11 00:31:53 +00:00
a119414b2f
Cache lookups at megamorphic call sites in optimized code.
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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
3dabe31e91
Reapply "Do not call ResolveCompileInstanceFunction from the lookup stub."
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With a fix for a crash bug on x64. The near jump encoding could fail on
some platforms due to platform-specific code.
BUG=
Review URL: https://codereview.chromium.org//11476021
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15845 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-07 13:00:38 +00:00
1ddeb10349
Revert "Do not call ResolveCompileInstanceFunction from the lookup stub."
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This reverts svn revision 15842 due to a snapshot build failure on Mac.
TBR=fschneider@google.com
Review URL: https://codereview.chromium.org//11467015
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15843 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-07 11:21:13 +00:00
c9bab9efaa
Do not call ResolveCompileInstanceFunction from the lookup stub.
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The InstanceFunctionLookup stub is only called after the inline cache miss
handler. The miss handler ensures that ResolveCompileInstanceCallTarget is
called.
BUG=
Review URL: https://codereview.chromium.org//11451036
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15842 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-07 11:13:51 +00:00
8c4e214722
Pass IC data and arguments descriptor to IC miss runtime functions.
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Before, we obtained them by pattern matching backwards on the machine
instructions at the call site. This previous approach becomes unwieldy when
we need to use to use multiple instance call patterns.
R=vegorov@google.com
BUG=
Review URL: https://codereview.chromium.org//11438017
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15737 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-05 15:35:18 +00:00
275c8d928f
Introduce a class encapsulating arguments descriptor arrays.
...
BUG=
Review URL: https://codereview.chromium.org//11442010
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15727 260f80e4-7a28-3924-810f-c04153c831b5
2012-12-05 12:05:57 +00:00
b7673910ab
Fix for issue 6359 - Make snapshots platform independent.
...
The issue previously was that an instance size was stored a
size in bytes, similarly field offsets were stored as an offset
in bytes. This caused issues when generating the snapshot on
one platform and reading it on another platform.
The VM has been changed to store the instance size as a size in
words and the field offset as an offset in words.
Review URL: https://codereview.chromium.org//11421117
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15538 260f80e4-7a28-3924-810f-c04153c831b5
2012-11-29 19:28:22 +00:00
zra@google.com