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16 Commits

Author SHA1 Message Date
Zachary Anderson a1bcf051d8 clang-format runtime/vm 
R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org/2481873005 .
 2016-11-08 13:54:47 -08:00
Srdjan Mitrovic edccf3af0a Cleanup: we are not patching entries any longer 
BUG=
R=rmacnak@google.com

Review URL: https://codereview.chromium.org//1376963002 .
 2015-09-30 10:22:59 -07:00
Florian Schneider bac82e2592 VM: New calling convention for generated code. 
Instead of calling code object directly, call indirectly and
pass the code object in a register. The object pool is then loaded from
the code object. This is another preparation step for making generated code
relocatable.

All non-ia32 platforms:
No entry patching.

ARM:
PC marker (now code object) moves to the same place as on x64 (below saved PP, above saved FP).
R9 is now used as PP, R10 as CODE_REG.

BUG=
R=koda@google.com, rmacnak@google.com

Committed: https://github.com/dart-lang/sdk/commit/1d343e5a7b75168fb6c9f86b64c55173cdbdc9b2

Review URL: https://codereview.chromium.org//1192103004 .
 2015-09-19 13:21:09 +02:00
Florian Schneider 7af7a2db87 Revert "VM: New calling convention for generated code." 
This reverts commit 1d343e5a7b.

Because of Windows test failures.

BUG=
TBR=whesse@google.com

Review URL: https://codereview.chromium.org//1343373003 .
 2015-09-16 13:46:05 +02:00
Florian Schneider 1d343e5a7b VM: New calling convention for generated code. 
Instead of calling code object directly, call indirectly and
pass the code object in a register. The object pool is then loaded from
the code object. This is another preparation step for making generated code
relocatable.

All non-ia32 platforms:
No entry patching.

ARM:
PC marker (now code object) moves to the same place as on x64 (below saved PP, above saved FP).
R9 is now used as PP, R10 as CODE_REG.

BUG=
R=rmacnak@google.com

Review URL: https://codereview.chromium.org//1192103004 .
 2015-09-16 13:05:58 +02:00
fschneider@google.com c2fad4230c VM: Enable collection of unoptimized code for optimized functions. 
Until now, code GC was limited to function that have not been optimized.
With lazy generation of unoptimized code on deoptimization we can now
collect unoptimized code for optimized functions as well.

R=vegorov@google.com

Review URL: https://codereview.chromium.org//1067383002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@45062 260f80e4-7a28-3924-810f-c04153c831b5
 2015-04-10 12:02:30 +00:00
fschneider@google.com 559e6410e2 First step in reducing the size of PC descriptors. 
The descriptors used for patching just contain a pc offset
and can be stored with the code object instead of allocating
a full descriptor and linearly searching the list to retrieve
this information.

R=srdjan@google.com

Review URL: https://codereview.chromium.org//315583002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@36989 260f80e4-7a28-3924-810f-c04153c831b5
 2014-06-04 11:02:34 +00:00
iposva@google.com 3878793b10 - Reduce the number of Isolate::Current() calls. 
R=johnmccutchan@google.com

Review URL: https://codereview.chromium.org//296003013

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@36564 260f80e4-7a28-3924-810f-c04153c831b5
 2014-05-23 12:07:33 +00:00
fschneider@google.com 4a26c88735 Fix crash bug in free list when allocating write protected memory. 
Re-enable write protection of code pages.

I added cc tests that cover two corner conditions that caused the old code to crash.

TEST=vm/FreeList
R=asiva@google.com

Review URL: https://codereview.chromium.org//150563007

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32647 260f80e4-7a28-3924-810f-c04153c831b5
 2014-02-13 11:59:22 +00:00
ricow@google.com 79eab5b7e0 Disable write protect mode temporarily until we have a fix for the random crashes 
Review URL: https://codereview.chromium.org//156423004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32547 260f80e4-7a28-3924-810f-c04153c831b5
 2014-02-11 09:38:10 +00:00
fschneider@google.com d6178535b2 Landing: Write protect executable pages in the VM. 
Change executable pages to be read/execute but not writable by default.

All pages are made temporarily writable just before a full GC, because both
the mark and sweep phases write to the pages. When allocating in a page and
when patching code, the pages are made temporarily writable.

The order of allocation of Code and Instructions objects is changed so that
a GC will not occur after Instructions is allocated. (A full GC would
render the Instructions unwritable.) A scoped object is used to make memory
protection simpler.

Original CL: https://codereview.chromium.org/106593002/

I added a cc test that is expected to crash.

R=srdjan@google.com

Review URL: https://codereview.chromium.org//136563002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32493 260f80e4-7a28-3924-810f-c04153c831b5
 2014-02-10 12:18:06 +00:00
johnmccutchan@google.com 7da1f4f3ba Build map of code regions and address ticks for profile report. 
Profile pauses should be less than 500 ms even when handling 120,000 samples (2 minutes @ 1000 hz).
Code objects are referenced by hex address: "code/cafebabe".
Test for retrieving code objects over the service.
Remove old profile tool scripts. Replaced by dprof (https://github.com/dart-lang/dprof) and Observatory UI for profiler.
Support for stable service refs to implicit closures and dispatcher functions.

R=srdjan@google.com

Review URL: https://codereview.chromium.org//100103011

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31447 260f80e4-7a28-3924-810f-c04153c831b5
 2014-01-03 19:55:50 +00:00
zra@google.com 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
srdjan@google.com a696cc5644 Add asserts to catch missing deoptimization info early. 
Review URL: https://codereview.chromium.org//12806007

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@20299 260f80e4-7a28-3924-810f-c04153c831b5
 2013-03-20 23:26:07 +00:00
regis@google.com 7766ac76d4 Implement leaf runtime call stub on ARM and corresponding call redirection 
in ARM simulator.
Implement jump patching on ARM.
Add missing ICache flush calls.
Review URL: https://codereview.chromium.org//12439005

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@19724 260f80e4-7a28-3924-810f-c04153c831b5
 2013-03-08 21:16:46 +00:00
srdjan@google.com 04fc29c7e1 Optimize function at its entry instead of at exit. 
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