This removes most of the compiler-related code from dart_precompiled:
x64 stripped binary size 13M -> 9.1M
ARM stripped binary size 12M -> 8.3M
The precompiled build defines the DART_PRECOMPILED macro. This
stubs out the public interface to the compiler/parser with empty
function bodies.
Use gcc options -ffunction-sections and --gc-sections to make the linker remove
unused functions/symbols.
BUG=
R=rmacnak@google.com
Review URL: https://codereview.chromium.org/1459443002 .
Instead of collecting closures functions in each class object, maintain one list per isolate. This is a step towards getting rid of top-level classes.
I'd appreciate if John could take a look at the service isolate and coverage related change.
I'd appreciate if Ryan could take a look at the precompilation related change.
When compiling all of corelib, the list of closures in the isolate is about 600 entries long. If this linear list should become a bottleneck, I'll deal with it later. (Sadly, some code relies on the fact that a closure can be identified with a list index, so making it a hash table instead of an array does not work.)
BUG=
R=rmacnak@google.com
Review URL: https://codereview.chromium.org/1436243005 .
Moving the construction of ?? into the parser using LetNode, so that the await-transformations are properly applied.
a ?? b becomes { temp = a; temp !== null ? temp : b; }
a ??= b becomes { temp = a; temp != null ? temp : a = b; }
BUG=issue #24392R=hausner@google.com
Review URL: https://codereview.chromium.org/1417733007 .
Change the compile-time constant map to use a pair (url, token_pos) as
the key. Previously, the two values were concatenated into a string, which creates a lot of new strings.
BUG=
R=srdjan@google.com
Review URL: https://codereview.chromium.org/1424393002 .
Also, avoid creating duplicate method extractors with explicit closurization:
Before the compiler would create one extractor per site when using the explicit
#-closurization operator.
BUG=
R=rmacnak@google.com
Review URL: https://codereview.chromium.org/1404163002 .
--move_super directs the VM compiler to move the super initializer
of a constructor to the end of the initializer list. The default
value is false. If we opt to enable this functionality, the implicit
phase parameter of constructors can be eliminated, simplifying
constructors significantly.
BUG=
R=regis@google.com
Review URL: https://codereview.chromium.org/1382533003 .
https://codereview.chromium.org/1305183010/
- Reorder the priority of flags in the test harness when passed to the VM:
default flags, file flags, command line flags
- Ensure to not enable assertions when not being requested.
Peter, any reason to not move the flags in to the
configuration file? Why don't we actually have all of them in there? (not
that I want to move them, I am just currious why we don't add them in
there, it seems more logical to me)
BUG=
R=iposva@google.com, whesse@google.com
Review URL: https://codereview.chromium.org//1330643003 .
Prints the stats into a zone-allocated string that can either be dumped to the console, or displayed as a whole in the observatory.
Distinguish token consumption between class parsing and function parsing when compiling.
Change stat counter macros use thread instead of isolate.
Review URL: https://codereview.chromium.org//1300033002 .
- Rename accessors of class Field to make it more apparent as to what is being accessed (static field values or instance field offsets
- Use precompiled initializer state (Used only during precompilation) to also store saved initial value of static fields (Used only during application snapshot generation)
BUG=
R=hausner@google.com, rmacnak@google.com
Review URL: https://codereview.chromium.org//1289643005 .
sync closures, thereby avoiding copy of parameters on entry.
Remove variable aliases in local scopes now that another mechanism detects
use-before-define cases. Keep aliases only for captured variables of outer
functions thereby speeding up scope lookups for all Dart code (not just async).
The next step will be to try to reduce the number of captured variables in
async code.
R=hausner@google.com
Review URL: https://codereview.chromium.org//1317213003 .
Compile-time constant values are maintained in a cache, keyed
by script and token position. When the same code is compiled
again later, e.g. by the optimizing compiler, the value is
found in the cache and does not need to be computed again.
In this version, the key is a string concatenated from the
script url and the token position. That’s probably more overhead
than we want.
Added two compiler stat counters for number of cached constants
and number of cache hits. Running dart2js to compile a hello world
program results in about 1400 cached values and 85 cache hits.
BUG=
R=srdjan@google.com
Review URL: https://codereview.chromium.org//1308073005 .
Stop inserting aliases in all intermediary scopes for explicitly captured
variables.
Use proper lookup function in async code to access async completer variable.
Add asserts verifying async variables existence.
R=hausner@google.com
Review URL: https://codereview.chromium.org//1314993002 .
Florian Schneider