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23 Commits

Author SHA1 Message Date
fschneider@google.com 352cb5bd78 Use writable register policy to avoid explicit restoring input register after untagging. 
This CL produces more compact code if the writable input
register is the last use by avoiding unnecessary re-tagging.
In that case no extra temp generated by the register allocator.
Review URL: https://codereview.chromium.org//12114008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18515 260f80e4-7a28-3924-810f-c04153c831b5
 2013-02-14 11:41:08 +00:00
fschneider@google.com 7fc8f72c25 Inline getters of byte array view in the optimized flow graph. 
This CL provides inline IL code for the getters _getInt8, _getInt16, etc.
to speed up [] and byte array views.

The code uses the existing LoadIndexed instructions by passing a index
scale factor explicitly: For normal arrays loads, the scale factor is equal
to the element size. For byte array access, the scale factor is always 1.

I'm adding inlined setters in a separate CL.
Review URL: https://codereview.chromium.org//12218008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@18173 260f80e4-7a28-3924-810f-c04153c831b5
 2013-02-06 15:18:57 +00:00
fschneider@google.com dfda7854a8 Fix source position for stack traces with optimized top function. 
Fix decoding of the deoptimization info when constructing a stack trace.

Fix stack trace for checked mode exceptions from optimized code.

BUG=dart:8058
TEST=runtime/tests/vm/dart/optimized_stacktrace_test.dart,
     tests/language/stack_overflow_stacktrace_test.dart
Review URL: https://codereview.chromium.org//12049039

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17755 260f80e4-7a28-3924-810f-c04153c831b5
 2013-01-29 12:38:27 +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
kmillikin@google.com 3d684dcc70 Compress deoptimization information by sharing common suffixes. 
For all the deoptimization entries in a function, build a suffix trie.  Add
a new deoptimization instruction that indicates the rest of the translation
is a fixed-length suffix of another entry.

BUG=

Review URL: https://codereview.chromium.org//11040058

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@14252 260f80e4-7a28-3924-810f-c04153c831b5
 2012-10-30 09:50:35 +00:00
kmillikin@google.com d7115e5eda Remove deoptimization index PC descriptors. 
Put the PC (offset) of the deoptimization point and the deoptimization
reason in the DeoptInfo table.  The table entries are now triples of
(PC offset, info, reason).

R=srdjan@google.com
BUG=

Review URL: https://codereview.chromium.org//10982088

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@13056 260f80e4-7a28-3924-810f-c04153c831b5
 2012-10-01 10:16:22 +00:00
zerny@google.com aa5281c88a Reapply "Deoptimization support in inlined code." 
This reapplies r12488 with a fix.

R=kmillikin@google.com,fschneider@google.com

Review URL: https://codereview.chromium.org//10952002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@12499 260f80e4-7a28-3924-810f-c04153c831b5
 2012-09-18 13:41:20 +00:00
zerny@google.com e174be3f27 Revert "Deoptimization support in inlined code." 
This reverts commit a78e33f178aae74a97f4231ca98183adf97fda71.

TBR=fschneider@google.com

Review URL: https://codereview.chromium.org//10948007

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@12492 260f80e4-7a28-3924-810f-c04153c831b5
 2012-09-18 12:18:04 +00:00
zerny@google.com 64a9ca2b81 Deoptimization support in inlined code. 
Review URL: https://codereview.chromium.org//10928232

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@12488 260f80e4-7a28-3924-810f-c04153c831b5
 2012-09-18 11:53:59 +00:00
srdjan@google.com a1cab6c167 Split deopt-after and deopt-before handling: 
- deopt-before describes a deoptimization that occurs before the instructionhas completed and requires a stub
- deopt-after describes deoptimziation after the instruction, used by lazy deooptimization, requires no stub.
Review URL: https://chromiumcodereview.appspot.com//10913031

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11720 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-31 20:18:40 +00:00
srdjan@google.com 727f1bf9e7 Eliminate try-index for deopt stubs. 
Review URL: https://chromiumcodereview.appspot.com//10886015

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11469 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-28 18:02:19 +00:00
vegorov@google.com 7a6cdd92c7 Remove support for non-ssa optimizing code generation. 
This kills FrameRegisterAllocator and related code.

BUG=

Review URL: https://chromiumcodereview.appspot.com//10832411

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@11045 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-21 13:58:57 +00:00
vegorov@google.com fe291bf0fa Implement basic support for deferred slow path code with calls that save and restore live registers. 
Use it to avoid spilling over stack-checks.

R=kmillikin@google.com
BUG=

Review URL: https://chromiumcodereview.appspot.com//10823308

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10639 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-14 12:47:42 +00:00
srdjan@google.com 32d5673c05 Move deopt reason into PcDescriptor so the EAX/RAX register is not destroyed. Some cleanups in PC descriptor. 
Review URL: https://chromiumcodereview.appspot.com//10832214

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10424 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-08 22:15:38 +00:00
srdjan@google.com 10b1928a3d Add deopt info to code object and print it. Still missing is the code to 'execute' the deopt instructions and thus deoptimize. 
Review URL: https://chromiumcodereview.appspot.com//10823131

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@10308 260f80e4-7a28-3924-810f-c04153c831b5
 2012-08-06 21:15:26 +00:00
vegorov@google.com aecd5caab9 Rename MoveMemory to MoveMemoryToMemory to fix compilation on Win32 
R=kmillikin@google.com
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com//10809052

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9811 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-23 14:21:51 +00:00
vegorov@google.com d83a634324 Add spill slot locations. 
Review URL: https://chromiumcodereview.appspot.com//10805053

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9810 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-23 14:05:48 +00:00
srdjan@google.com 66d31c8b23 Fix crash during parallel moves. Made MoveOperands ZoneAlloacted. Non-const ValueObjects a fragile, since it is easy to modify a copy instead of the original. It is also dangereous to use pointers to ValueObjects that contain copy constructors. 
Review URL: https://chromiumcodereview.appspot.com//10806047

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9790 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-20 21:16:06 +00:00
srdjan@google.com d173b31373 Minor cleanups: use GrowableArray::is_empty instead of ::length() == 0 
Review URL: https://chromiumcodereview.appspot.com//10790086

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9780 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-20 16:06:40 +00:00
vegorov@google.com 1bd5a9b414 Skeleton of a linear scan register allocator. 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com//10696151

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@9563 260f80e4-7a28-3924-810f-c04153c831b5
 2012-07-11 18:52:17 +00:00
vegorov@google.com 959cf98b00 Implement a simple register allocator that tries to keep instruction results in registers. 
Add --optimization-filter flag that allows to disbable optimizations for all function which do not match prefix. This allows to quickly localize problems with code generation.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com//10559035

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8811 260f80e4-7a28-3924-810f-c04153c831b5
 2012-06-18 18:04:22 +00:00
kmillikin@google.com 888a35df7f Add a stubbed-out implementation of FlowGraphCompiler for ia32 and arm. 
It bails out if FlowGraphCompiler::CompileGraph is called, all other public
API functions are UNIMPLEMENTED.

R=srdjan@google.com
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com//9479004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4685 260f80e4-7a28-3924-810f-c04153c831b5
 2012-02-28 14:17:17 +00:00
kmillikin@google.com 862dc2f03c Add enough compiler support to compile empty functions on x64. 
Implement a simple compilation visitor for the intermediate language.  Copy
code from the x64 code generator to support compilation of functions with no
arguments, no locals, and that return a literal.

Compiled code is not used, but it can be disassembled and visually checked
against the code from the old code generator.

R=srdjan@google.com
BUG=
TEST=expected to pass all tests on x64

Review URL: https://chromiumcodereview.appspot.com//9464009

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@4601 260f80e4-7a28-3924-810f-c04153c831b5
 2012-02-27 08:28:51 +00:00