- 17 Aug, 2010 1 commit
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sgjesse@chromium.org authored
This is a port of r5260. Review URL: http://codereview.chromium.org/3165021 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 16 Aug, 2010 10 commits
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vitalyr@chromium.org authored
Review URL: http://codereview.chromium.org/3181013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vegorov@chromium.org authored
This allows to remove special handling of GCC 4.4 (disabling of Value Range Propagation) from SConstruct. BUG=http://code.google.com/p/v8/issues/detail?id=830 Review URL: http://codereview.chromium.org/3135022 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5278 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vitalyr@chromium.org authored
Object model changes ---------------------------------------- New fixed_cow_array_map is used for the elements array of a JSObject to mark it as COW. The JSObject's map and other fields are not affected. The JSObject's map still has the "fast elements" bit set. It means we can do only the receiver map check in keyed loads and the receiver and the elements map checks in keyed stores. So introducing COW arrays doesn't hurt performance of these operations. But note that the elements map check is necessary in all mutating operations because the "has fast elements" bit now means "has fast elements for reading". EnsureWritableFastElements can be used in runtime functions to perform the necessary lazy copying. Generated code changes ---------------------------------------- Generic keyed load is updated to only do the receiver map check (this could have been done earlier). FastCloneShallowArrayStub now has two modes: clone elements and use COW elements. AssertFastElements macro is added to check the elements when necessary. The custom call IC generators for Array.prototype.{push,pop} are updated to avoid going to the slow case (and patching the IC) when calling the builtin should work. COW enablement ---------------------------------------- Currently we only put shallow and simple literal arrays in the COW mode. This is done by the parser. Review URL: http://codereview.chromium.org/3144002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5275 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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ager@chromium.org authored
Review URL: http://codereview.chromium.org/3117018 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5274 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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erik.corry@gmail.com authored
Fix some bit op bugs introduced last week on IA32: http://code.google.com/p/chromium/issues/detail?id=52096 Review URL: http://codereview.chromium.org/3151017 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5273 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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antonm@chromium.org authored
Note: it intentionally lags behind current HeapStats (which now has os_error field) as these new minidumps could not be produced by current versions of Chrome yet. Review URL: http://codereview.chromium.org/3170015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5272 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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antonm@chromium.org authored
Review URL: http://codereview.chromium.org/3143015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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erik.corry@gmail.com authored
Load() or constructing a reference. Review URL: http://codereview.chromium.org/3125011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5270 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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erik.corry@gmail.com authored
Review URL: http://codereview.chromium.org/3108023 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
Upgraded the CodeGenerator::ToBoolean() function in the ARM backend to use complete JIT code generation and not make runtime calls to ToBool (when VFP is enabled). This change also includes the vcmp VFP instruction that supports a constant 0.0 as the second operand. Patch by Subrato K De <subratokde@codeaurora.org> git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5267 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 13 Aug, 2010 8 commits
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peter.rybin@gmail.com authored
Review URL: http://codereview.chromium.org/3120011 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
Also hoist the load of the valueOf symbol out of the loop. Review URL: http://codereview.chromium.org/3170014 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
Review URL: http://codereview.chromium.org/3123013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5262 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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antonm@chromium.org authored
That could allow us to understand why commit of from space sometimes fails. Another option would be start a separate structure with OS-related info, but as it's a single field, let's put it into HeapStats, at least for now. Review URL: http://codereview.chromium.org/3118013 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5261 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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erik.corry@gmail.com authored
Review URL: http://codereview.chromium.org/3161009 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5260 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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ager@chromium.org authored
approach. Review URL: http://codereview.chromium.org/3152016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5259 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
BUG=http://code.google.com/p/v8/issues/detail?id=798 TEST=test/mjsunit/regress/regress-798.js Review URL: http://codereview.chromium.org/3082012 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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ager@chromium.org authored
for instance throw exceptions in case of failed access checks. Review URL: http://codereview.chromium.org/3165016 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 12 Aug, 2010 6 commits
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peter.rybin@gmail.com authored
Review URL: http://codereview.chromium.org/3133007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5256 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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peter.rybin@gmail.com authored
Review URL: http://codereview.chromium.org/3131008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5255 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vitalyr@chromium.org authored
This should help in cases like: function Constructor() { this.foo = constFunction; this.bar = "baz"; } for (...) { o = new Constructor(); // Constant call IC will work. o.foo(); // Inlined property load will see the same map. use(o.bar); } This change also fixes a latent bug in custom call IC-s for strings exposed by string-charcodeat.js. Review URL: http://codereview.chromium.org/3160006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5254 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
Don't do fuzzing of _IsStringWrapperSafeForDefaultValueOf as it expects a non-smi as its first argument. Review URL: http://codereview.chromium.org/3109010 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
This adds a check to the fast case string add to ensure that the String object still have the default valueOf function. The default valueOf is sitting on a hidden prototype of String.prototype. Before using the fast case valueOf the object is checked for a local valueOf property. For slow case objects this check always reports true (the dictionary is not probed, so valueOf might be there) and for fast case objects the descriptor array is checked for the valueOf symbol (just liniar scan). After that the prototype is checked for beeing the initial value of String.prototype. If this all pass (that is the default valueOf is still in place) this result is cached on the map making the check fast the next time. This is only implemented in the optimizing compiler, as the two usages of %_IsStringWrapperSafeForDefaultValueOf is never hit by the full compiler. I will port to x64 and ARM when this has been reviewed for ia32. I will remove the performance counters prior to final commit. BUG=http://code.google.com/p/v8/issues/detail?id=760 TEST=test/mjsunit/regress/regress-760-1.js TEST=test/mjsunit/regress/regress-760-2.js Review URL: http://codereview.chromium.org/3117006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vegorov@chromium.org authored
Review URL: http://codereview.chromium.org/3172008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5251 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 11 Aug, 2010 14 commits
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vegorov@chromium.org authored
Review URL: http://codereview.chromium.org/3166008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vegorov@chromium.org authored
Review URL: http://codereview.chromium.org/3180001 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vegorov@chromium.org authored
Review URL: http://codereview.chromium.org/3066044 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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lrn@chromium.org authored
Review URL: http://codereview.chromium.org/3104007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5245 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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ricow@chromium.org authored
This change changes the lazy compilation stub to a builtin and eliminates the argc (argument count for the function for which to create a lazy stub) parameter. Review URL: http://codereview.chromium.org/3146008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
Return (smi) 0 instead of object null from the FILTER_KEY builtin. Add a test which tests keys being deleted during for-in. Review URL: http://codereview.chromium.org/3170004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5243 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vegorov@chromium.org authored
Review URL: http://codereview.chromium.org/3166005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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vegorov@chromium.org authored
Review URL: http://codereview.chromium.org/3166006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5239 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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sgjesse@chromium.org authored
Review URL: http://codereview.chromium.org/3119005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5238 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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lrn@chromium.org authored
Patch by Jay Freeman. Fixes issue 463. Review URL: http://codereview.chromium.org/3117007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5237 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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mikhail.naganov@gmail.com authored
Review URL: http://codereview.chromium.org/3118007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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mikhail.naganov@gmail.com authored
BUG=822 TEST=test-heap-profiler/Issue822 Review URL: http://codereview.chromium.org/3128004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5235 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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ricow@chromium.org authored
Review URL: http://codereview.chromium.org/3172003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5234 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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ricow@chromium.org authored
in allowing more flexible compilation and to simplify builtins lookup. This changes a number of places where code objects are assigned to SharedFunctionInfo objects to also assign this code object to the JSFunction. In addition, the code flushing is changed slightly to accomodate this (we need to flush the code from functions pointing to SharedFunctionInfo objects that has already been flushed). Review URL: http://codereview.chromium.org/3120006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5233 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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- 10 Aug, 2010 1 commit
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lrn@chromium.org authored
It doesn't work correctly for array indices. Review URL: http://codereview.chromium.org/3109002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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