Review URL: http://codereview.chromium.org/118499

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

the implementation but still lives on in comments and identifier
names.

Where it was used, it has been changed to "caller's stack pointer".
Review URL: http://codereview.chromium.org/118500

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2137 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=antonm@chromium.org
Review URL: http://codereview.chromium.org/118501

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

writable (non-aliased) so it can be used for the result in the slow
case.

Review URL: http://codereview.chromium.org/118496

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make Array.sort safely generic on JSObject types.  Fix bug 346 http://code.google.com/p/v8/issues/detail?id=346
Review URL: http://codereview.chromium.org/119357

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119353

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* Identify heap numbers that contain non-Smi int32s and do bit
ops on them without calling the fp hardware or emulation.
* Identify results that are non-Smi int32s and write them into
heap numbers without calling the fp hardware or emulation.
* Do unary minus on heap numbers without going into the runtime
system.
* On add, sub and mul if we have both Smi and heapnumber inputs
to the same operation then convert the Smi to a double and do
the op without going into runtime system.  This also applies
if we have two Smi inputs but the result is not Smi.
Review URL: http://codereview.chromium.org/119241

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2131 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Still some supporting functions missing.

Review URL: http://codereview.chromium.org/114085


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2130 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

parameter pointer slots.  Change it so that the handler address no
longer points into the middle of the handler.

Review URL: http://codereview.chromium.org/119414

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2129 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

not point into the middle of the handler.  Also remove top-of-stack
caching from MacroAssembler::PushTryHandler.

Review URL: http://codereview.chromium.org/119358

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

instructions.  The intention is that the snapshots generated
by the simulator should be usable on the hardware.  Instead of
swi instructions we generate a branch to a swi instruction that
is not part of the snapshot.  The call/jump is patched up in
the same way as other external references when the snapshot
is deserialized.  This only works for EABI targets: on old ABI
targets we still emit some instructions not supported by the
simulator (fp coprocessor instructions).
Review URL: http://codereview.chromium.org/119036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

allocate and spill registers, so that the register reference counts
and virtual frame are unchanged in the main body.

This eliminates a few sites of magic branching or binding of
JumpTarget with arguments.

Review URL: http://codereview.chromium.org/119302

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2126 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Change locationFromPosition() and locationFromLine() to use a binary search to locate line numbers from position numbers.  Modify test debug-sourceinfo.js to include more tests, including error conditions.

Patch by Matt Hanselman, see http://codereview.chromium.org/118371.

BUG=213
TEST=test/mjsunit/debug-sourceinfo.js
Review URL: http://codereview.chromium.org/118425

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This will support breaking in debugger statements in JavaScript files read from the command line.
Review URL: http://codereview.chromium.org/113998

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

pointer and parameter pointer slots.

Review URL: http://codereview.chromium.org/118383

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2123 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a trivial per-row compression:
- short aliases are introduced for events and code creation tags;
- in tick events, offsets are used instead of absolute addresses;
- removed 'code-allocation' event, as it seems not used.

The first two options are depend on the new flag: 'compress-log', which is off by default.

On benchmarks run w/o snapshot, this gives 45% log size reduction.

Review URL: http://codereview.chromium.org/119304


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Review URL: http://codereview.chromium.org/118378

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Scripts now have a compilation type which can be host, eval or JSON. Host scripts are compiled through the API, eval scripts are compiled through call to evan and JSON scripts are compiled as a result of calling JSON.parse.

For scripts scripts compiled through eval the JavaScript function in top of the stack and the pc offset into the code is stored in the script object. This makes it possible to calculate the source position of the eval call later when requested. This information can be obtained through the script mirror object and is part of the script mirror JSON serialization for the debugger protocol.

Moved the enumeration ScripType into class Script and remamed to Type. The new compilation type enumeration is also inside the class Script.

This information is now shown when using the scripts command in he developer shell debugger.
Review URL: http://codereview.chromium.org/119108

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2119 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

interceptors and dont-delete attributes.

Minor change to the behavior of eval: throw exception when calling
eval in a context for which the global has been detached.  This
matches the behavior of both Firefox and Safari post navigation in the
browser.
Review URL: http://codereview.chromium.org/118374

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

http://codereview.chromium.org/113897


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cache to 5 (down from 8). Generations 5, 6, and 7 are 
rarely hit in real browsing sessions (~2% in the best case)
so it seems better to lower the size to avoid carrying around 
too many compiled scripts in the cache.
Review URL: http://codereview.chromium.org/119301

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119177

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2115 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=whesse@chromium.org,lrn@chromium.org
Review URL: http://codereview.chromium.org/118310

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2114 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/118306


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

deferred code snippets are highly stylized.  They always make a call
to a stub or the runtime and then return.  This change takes advantage
of that.

Creating a deferred code object now captures a snapshot of the
registers in the virtual frame.  The registers are automatically saved
on entry to the deferred code and restored on exit.

The clients of deferred code must ensure that there is no change to
the registers in the virtual frame (eg, by allocating which can cause
spilling) or to the stack pointer.  That is currently the case.

As a separate change, I will add either code to verify this constraint
or else code to forbid any frame effect.

The deferred code itself does not use the virtual frame or register
allocator (or even the code generator).  It is raw macro assembler
code.
Review URL: http://codereview.chromium.org/118226

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git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119048

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2110 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

submitted in revisions 2093, 2094, 2099, and 2106.
There's no evidence that supports that these changes
should be the cause of the unexplained performance
regressions on the intl2 and DHTML page cyclers. 


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2106 to try to isolate a performance regression on the
page cyclers.

I'll roll the changes back in if this doesn't fix the
regression.

TBR=antonm@chromium.org
Review URL: http://codereview.chromium.org/118302

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2108 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Change stack alignment on linux to 16 bytes to keep gcc 4.4 happy. 
This fixes the mksnapshot segfault without requiring -fno-tree-vectorize
which just avoided the problem by not generating code with movdqa.


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The problem was I incorrectly treated NULL result as failure to fetch
a property with a getter.  However, if getter returns zero, it is
manifested as NULL pointer (see added test case).

Good news: that gives another boost as before this CL if getter returned
0, I did another slow lookup.

Review URL: http://codereview.chromium.org/119172

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

indentation.

Review URL: http://codereview.chromium.org/118234

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/118115


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2104 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119171

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119082

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/118229


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2101 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/118163

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2098 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/119081

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2097 ce2b1a6d-e550-0410-aec6-3dcde31c8c00