AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity
8,746 Commits 1 Branch 0 Tags 839 MiB
f7b4a96b84
Commit Graph

1671 Commits

Author SHA1 Message Date
fschneider@chromium.org
066822a2cf Port to x64 and ARM and some refactoring of ia32. 
Review URL: http://codereview.chromium.org/8111006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10174 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-06 12:11:08 +00:00
yangguo@chromium.org
c78825991a Remove early NaN/Infinity check in MathPowStub. 
Review URL: http://codereview.chromium.org/8817015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10172 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-06 11:56:56 +00:00
yangguo@chromium.org
5e432754b3 Skip check for +/-0.5 in optimized Math.pow (ia32). 
Review URL: http://codereview.chromium.org/8820007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10168 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-06 09:20:28 +00:00
yangguo@chromium.org
1bfa622043 Refactor MathPowHalf on ia32. 
BUG=v8:397, v8:1848
TEST=regress-397.js

Review URL: http://codereview.chromium.org/8806010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10157 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-05 15:58:25 +00:00
yangguo@chromium.org
929c619101 Quickfix for DoMathPowHalf. 
TEST=regress-397.js

Review URL: http://codereview.chromium.org/8769037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-02 13:16:49 +00:00
danno@chromium.org
25e3d2706d Optimize Crankshaft array literal initialization from boilerplate. 
BUG=none
TEST=test/mjsunit/array-literal-transitions.js

Review URL: http://codereview.chromium.org/8747009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-02 12:42:35 +00:00
erik.corry@gmail.com
ff71466e46 Fix lint 
Review URL: http://codereview.chromium.org/8773033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-02 10:05:20 +00:00
erik.corry@gmail.com
701790fd34 Support multi-byte nop instructions as recommended by 
the optimization guides from AMD and Intel.
Review URL: http://codereview.chromium.org/8776033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10134 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-02 10:01:50 +00:00
yangguo@chromium.org
d5fdb76028 Implement Math.pow using FPU instructions and inline it in crankshaft (ia32). 
Review URL: http://codereview.chromium.org/8749002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10133 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-02 08:06:37 +00:00
fschneider@chromium.org
8f7a1f7808 Revert r10118 from bleeding edge. 
It causes several test failures which I need to investigate.
Review URL: http://codereview.chromium.org/8769008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-01 16:57:54 +00:00
fschneider@chromium.org
4ca20a1d35 Simplify stack check instruction in Crankshaft. 
So far we had two types of stack checks: one used for function entries
and one used at loop back edges which uses a deferred code object to
avoid spilling of registers in the loop.

After refactoring lazy deoptimization the first stack check can also
use deferred code. This change removes the first type of stack check
instruction in Crankshaft and uses a deferred stack check in all
places.
Review URL: http://codereview.chromium.org/8775002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10118 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-01 09:54:05 +00:00
fschneider@chromium.org
9418d56858 Fix bug when generating padding to ensure space for lazy deoptimization. 
BUG=v8:1846
Review URL: http://codereview.chromium.org/8725030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-29 12:39:28 +00:00
kmillikin@chromium.org
0a7010458a Remove the static qualifier from functions in header files. 
This shaves 416+ KB, just under 1% off the size of the debug d8 executable
on Linux (mostly because the CheckHelper functions for assertions were
getting separate copies for each compilation unit).  The difference in
release builds is negligible---a size reduction of 0.1%.

Also, change namespace-level 'static const' variables to remove the static
storage class as it's the default.

R=danno@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8680013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10083 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-29 10:56:11 +00:00
danno@chromium.org
f35e53ff50 Reintroduce fast path in full-codegen for VisitArrayLiteral. 
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8472003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10078 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-28 17:17:46 +00:00
yangguo@chromium.org
f8cabc645a Shorten FP register pops where possible. 
Review URL: http://codereview.chromium.org/8699004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10071 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-25 14:26:54 +00:00
yangguo@chromium.org
d542a2fb75 Add external strings support to regexp in generated code. 
TEST=test/mjsunit/string-external-cached.js

Review URL: http://codereview.chromium.org/8680010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10070 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-25 14:04:47 +00:00
yangguo@chromium.org
dcc05b9fca Implement Math.tan in generated code. 
Review URL: http://codereview.chromium.org/8700004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10067 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-25 13:15:31 +00:00
yangguo@chromium.org
50e5aaa73f Catch non-string subject in RegExpExecStub. 
There is no test case to trigger any crash. This is only to guard against the case that the native function is called with unsafe arguments.

Review URL: http://codereview.chromium.org/8554004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-24 18:36:24 +00:00
keuchel@chromium.org
1e9a7267ab Introduce extended mode. 
This CL introduces a third mode next to the non-strict
(henceforth called 'classic mode') and 'strict mode'
which is called 'extended mode' as in the current
ES.next specification drafts. The extended mode is based on
the 'strict mode' and adds new functionality to it. This
means that most of the semantics of these two modes
coincide.

The 'extended mode' is entered instead of the 'strict mode'
during parsing when using the 'strict mode' directive
"use strict" and when the the harmony-scoping flag is
active. This should be changed once it is fully specified how the 'extended mode' is entered.

This change introduces a new 3 valued enum LanguageMode
(see globals.h) corresponding to the modes which is mostly
used by the frontend code. This includes the following
components:
* (Pre)Parser
* Compiler
* SharedFunctionInfo, Scope and ScopeInfo
* runtime functions: StoreContextSlot,
  ResolvePossiblyDirectEval, InitializeVarGlobal,
  DeclareGlobals

The old enum StrictModeFlag is still used in the backend
when the distinction between the 'strict mode' and the 'extended mode' does not matter. This includes:
* SetProperty runtime function, Delete builtin
* StoreIC and KeyedStoreIC
* StubCache

Review URL: http://codereview.chromium.org/8417035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10062 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-24 15:17:04 +00:00
mstarzinger@chromium.org
7e7d4dfd64 Implement crankshaft support for nested object literals. 
This generates optimized code for deep-copying of nested object literal
boilerplates which are statically known. Most of the boilerplates have
already been generated at crankshaft time, so this optimization should
kick in for virtually every object literal. Only nested object literal
graphs up to a certain depth and containing up to a certain total number
of properties are considered for this optimization. This will prevent
explosion of code size due to large object literals (e.g. eval on JSON).
Improves splay performance because object literals are created often.

R=fschneider@chromium.org

Review URL: http://codereview.chromium.org/8640001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-24 13:42:52 +00:00
yangguo@chromium.org
304d49cd17 Porting r10023 and r10054 to arm (pointer cache for external strings). 
Review URL: http://codereview.chromium.org/8682010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10059 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-24 11:07:39 +00:00
yangguo@chromium.org
198e33560b Porting r10023 and r10054 to x64 (pointer cache for external strings). 
Review URL: http://codereview.chromium.org/8662009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10058 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-24 10:16:39 +00:00
yangguo@chromium.org
2055f4195e Recommit introducing short external strings. 
Review URL: http://codereview.chromium.org/8677006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-23 13:08:28 +00:00
yangguo@chromium.org
922aee5a02 Rolling back r10049 due to webkit failures. 
Review URL: http://codereview.chromium.org/8681007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10050 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-23 10:41:12 +00:00
yangguo@chromium.org
21edc7c30b Introduce short external strings without pointer cache. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/8635011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10049 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-23 09:58:58 +00:00
mstarzinger@chromium.org
d7e099889e Implement code stub for object literal creation. 
This generates code stubs for cloning of shallow object literal
boilerplates that have no elements and only fast properties. Improves
splay performance because object literals are created frequently.

R=fschneider@chromium.org

Review URL: http://codereview.chromium.org/8598014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-21 13:27:44 +00:00
danno@chromium.org
f808f4ae7b Optimize array literal boilerplate copy for fast cases. 
R=jkummerow@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8590026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10024 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-17 17:22:21 +00:00
yangguo@chromium.org
5a82d78948 Add pointer cache field to external string for access in generated code. 
TEST=test/mjsunit/string-externalize.js

Review URL: http://codereview.chromium.org/8513010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10023 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-17 17:05:12 +00:00
danno@chromium.org
be923eed32 Add version of x64 FastCloneShallowArrayStub that copies all boilerplate kinds 
R=jkummerow@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8574058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10022 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-17 15:08:59 +00:00
danno@chromium.org
371841b270 Add ia32 FastCloneShallowArrayStub that copies all boilerplate kinds. 
R=jkummerow@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8574053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10021 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-17 14:55:26 +00:00
fschneider@chromium.org
8fbf1d5017 Landing: [hydrogen] optimize switch with string clauses. Patch by Fedor Indutny <fedor.indutny@gmail.com>. 
Original code review: http://codereview.chromium.org/8373029/
Review URL: http://codereview.chromium.org/8589019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10019 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-17 13:57:55 +00:00
yangguo@chromium.org
85b693c9e8 Change generated code for substring not to bail out to runtime system. 
There is no need to bail out to runtime system when creating sliced strings of external strings since the string content is unimportant.

Review URL: http://codereview.chromium.org/8513016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10012 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-17 08:40:40 +00:00
fschneider@chromium.org
8480569467 Fix lazy deoptimization at HInvokeFunction and enable target-recording call-function stub. 
Changes the way we do lazy deoptimization:

1. For side-effect instructions, we insert the lazy-deopt call at
the following LLazyBailout instruction.

     CALL
     GAP
     LAZY-BAILOUT ==> lazy-deopt-call

2. For other instructions (StackCheck) we insert it right after the
instruction since the deopt targets an earlier deoptimization environment.

   STACK-CHECK
   GAP ==> lazy-deopt-call

The pc of the lazy-deopt call that will be patched in is recorded in the
deoptimization input data. Each Lithium instruction can have 0..n safepoints.
All safepoints get the deoptimization index of the associated LAZY-BAILOUT
instruction. On lazy deoptimization we use the return-pc to find the safepoint.
The safepoint tells us the deoptimization index, which in turn finds us the
PC where to insert the lazy-deopt-call.

Additional changes:
 * RegExpLiteral marked it as having side-effects so that it 
   gets an explicitlazy-bailout instruction (instead of
   treating it specially like stack-checks)
 * Enable target recording CallFunctionStub to achieve
   more inlining on optimized code.

BUG=v8:1789
TEST=jslint and uglify run without crashing, mjsunit/compiler/regress-lazy-deopt.js
Review URL: http://codereview.chromium.org/8492004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10006 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-16 08:44:30 +00:00
keuchel@chromium.org
b153dcfebf Make eval compilation cache calling scope sensitive. 
Review URL: http://codereview.chromium.org/8518001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-14 08:58:47 +00:00
danno@chromium.org
8bdb3ffbca ARM: Implement runtime function for array literal transitions. 
Also simplify ia32 and x64 handing of the trace_elements_transition flag.

R=jkummerow@chromium.org
BUG=none
TEST=array-literal-transitions.js

Review URL: http://codereview.chromium.org/8539011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9979 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-11 14:49:16 +00:00
kmillikin@chromium.org
e49d533b50 Reapply "Add a level of indirection to exception handler addresses." 
Original commit message:

Add a level of indirection to exception handler addresses.

To support deoptimization of exception handlers, the handler address in the
stack is converted to a pair of code object and an index into a separate
table of code offsets.  The index part is invariant under deoptimization.
The index is packed into the handler state field so that handler size does
not change.

R=vegorov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8538011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-11 13:48:14 +00:00
kmillikin@chromium.org
66ff8828a0 Revert "Add a level of indirection to exception handler addresses." 
This reverts r9975.  This change broke (at least) snapshots on x64.

TBR=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8540005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-11 13:13:35 +00:00
kmillikin@chromium.org
1635117db9 Add a level of indirection to exception handler addresses. 
To support deoptimization of exception handlers, the handler address in the
stack is converted to a pair of code object and an index into a separate
table of code offsets.  The index part is invariant under deoptimization.
The index is packed into the handler state field so that handler size does
not change.

R=vegorov@chromium.org,fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8462010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9975 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-11 12:51:42 +00:00
mstarzinger@chromium.org
5834284848 Refactor embedded pointer visitors for the serializer 
This patch continues the refactoring that started in r9597 and
extends it with support for the serializer.
This is required for MIPS support in the serializer.

Review URL: http://codereview.chromium.org/8467010
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-11 12:28:42 +00:00
yangguo@chromium.org
07ee3e6e5c Fixing generated hash function on all platforms. 
BUG=v8:1808
TEST=cctest/test-hashing.cc

Review URL: http://codereview.chromium.org/8512004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9956 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-10 14:26:57 +00:00
yangguo@chromium.org
2e5cb9b49f MIPS: Simplify StringCharCodeAt in non-crankshaft codegen. 
Port r9936 (61034d).

BUG=
TEST=

Review URL: http://codereview.chromium.org/8506024
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9947 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-10 08:07:39 +00:00
kmillikin@chromium.org
cefa4cc148 Get rid of CodeStub::TryGetCode. 
This function is no longer needed.  It was only used (overly defensively)
when fetching the stack check stub for on-stack replacement patching.

R=vegorov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8510013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9942 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-09 15:44:13 +00:00
yangguo@chromium.org
6157562994 Simplify StringCharCodeAt in non-crankshaft codegen. 
TEST=test/mjsunit/string-slices.js

Review URL: http://codereview.chromium.org/8510005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-09 14:32:51 +00:00
rossberg@chromium.org
f936aac43e Make _CallFunction proxy-aware. 
Change calling convention for CallFunction stub.
Some fixes regarding strict mode call traps.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8318014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9916 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 14:39:37 +00:00
keuchel@chromium.org
72dba271eb Reapply r9870 "Remove some initialization checks based on source positions.". 
This reverts r9896 "Revert r9870 due to browser-test failures." See below for
the diff from the previous version for the ia32 platform. The code for other
platforms has been changed accordingly.

TEST=mjsunit/compiler/lazy-const-lookup.js

diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index 2cbf518..1990f2f 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -1258,13 +1258,17 @@ void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
         // binding is initialized:
         //   function() { f(); let x = 1; function f() { x = 2; } }
         //
-        // Check that we always have valid source position.
-        ASSERT(var->initializer_position() != RelocInfo::kNoPosition);
-        ASSERT(proxy->position() != RelocInfo::kNoPosition);
-        bool skip_init_check =
-            var->mode() != CONST &&
-            var->scope()->DeclarationScope() == scope()->DeclarationScope() &&
-            var->initializer_position() < proxy->position();
+        bool skip_init_check;
+        if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) {
+          skip_init_check = false;
+        } else {
+          // Check that we always have valid source position.
+          ASSERT(var->initializer_position() != RelocInfo::kNoPosition);
+          ASSERT(proxy->position() != RelocInfo::kNoPosition);
+          skip_init_check = var->mode() != CONST &&
+              var->initializer_position() < proxy->position();
+        }
+
         if (!skip_init_check) {
           // Let and const need a read barrier.
           Label done;

Review URL: http://codereview.chromium.org/8479034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9915 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 13:28:53 +00:00
danno@chromium.org
76a9340482 Fix removed return parameter count. 
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8496011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 13:16:56 +00:00
danno@chromium.org
93559bb6c9 Attempt to fix Windows x64 build. 
R=jkummerow@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8495012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 13:07:14 +00:00
kmillikin@chromium.org
aee8ae0548 Tighten the code for MacroAssembler::ThrowUncatchable. 
Test at the bottom in the unwind loop.  Eliminate the possibility of a
useless move to the eax/rax/r0 register (currently impossible because
this function has two call sites).  Do not explicitly zero the context
because we've already saved 0 as the context in the handler.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8493008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9909 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 11:09:00 +00:00
fschneider@chromium.org
4627023b38 Revert r9901 to make tree green again. 
There was a test failure on x64 mozilla tests.

TBR=ricow@chromium.org
Review URL: http://codereview.chromium.org/8495011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 09:56:09 +00:00
fschneider@chromium.org
cac3008437 [hydrogen] optimize switch with string clauses 
Hydrogen should optimize not only SMI clauses, but clauses with string literals
too.

Patch from fedor.indutny <fedor.indutny@gmail.com>.

R=vegorov@chromium.org
BUG=
TEST=
Review URL: http://codereview.chromium.org/8373029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-08 09:08:33 +00:00
keuchel@chromium.org
c0d0bf863a Revert r9870 due to browser-test failures. 
This reverts commit 4d5b5f12aac932ad892c7b6f152b6168708d4210.

Review URL: http://codereview.chromium.org/8493006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-07 12:33:58 +00:00
yangguo@chromium.org
2944545888 Adding assertions to fast elements conversion. 
Review URL: http://codereview.chromium.org/8437092

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9875 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-03 16:24:24 +00:00
keuchel@chromium.org
fd21937812 Remove some initialization checks based on source positions. 
This depends on
http://codereview.chromium.org/8352039 and
http://codereview.chromium.org/8423005 .

Review URL: http://codereview.chromium.org/8422010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9870 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-03 12:05:48 +00:00
keuchel@chromium.org
58123bff56 Remove some unnecessary binding initialization checks. 
This depends on http://codereview.chromium.org/8352039/ .

Review URL: http://codereview.chromium.org/8423005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9869 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-03 11:59:51 +00:00
kmillikin@chromium.org
4e4a901d96 Remove the forward-bailout stack from the non-optimizing compiler. 
This was pretty heavyweight.  It was kept in just for a few corner cases
that assumed it was there.  We can work around them by making sure that the
expression in a reified test context is always really the expression that
was visited in that context; and by inspecting the context manually and
consing up a pair of extra AST IDs for the unusual case of unary not in a
value AST context.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8386037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9863 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-02 16:53:32 +00:00
fschneider@chromium.org
f3f16dc17a Make non-templatized versions of LIR printing functions. 
This avoid duplicating the code for each template instance.

Also remove dead code from different places in our code base.

Removed some verification code from release builds.
Review URL: http://codereview.chromium.org/8387070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-02 08:32:40 +00:00
fschneider@chromium.org
aa34b432de Remove one-line helper used in two places. 
Review URL: http://codereview.chromium.org/8387067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-01 12:25:18 +00:00
whesse@chromium.org
7a25c43a07 Remove stack height tracking from ia32 non-optimizing code generator. 
Review URL: http://codereview.chromium.org/8340023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9857 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-01 12:20:46 +00:00
fschneider@chromium.org
d418a11fdd Use placement-new for zone-allocation in the Lithium classes. 
This avoid calling Isolate::Current on each zone-allocation of
a Lithium object.
Review URL: http://codereview.chromium.org/8429001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-01 11:49:31 +00:00
danno@chromium.org
75585d9643 Create stub and runtime function for ia32 full-codegen array literal element initialization. 
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8359014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-31 14:42:06 +00:00
danno@chromium.org
0766a138a6 Add and use ElementsKind side effect 
Also partition side effects into observable and not observable, with only observable requiring Simulates and non-observable changes able to participate in GVN and code hoisting.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8380017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-31 14:15:10 +00:00
fschneider@chromium.org
0df9569fe5 Merge IR classes for different bitwise operations AND, OR and XOR into one class. 
Since we already have only one LIR class, it does not make much sense to separate
them at the HIR level.
Review URL: http://codereview.chromium.org/8426005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9846 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-31 13:06:26 +00:00
lrn@chromium.org
30465596e6 Make eval consider anything on the form eval(args...) a potential direct cal 
Previously we omitted all cases where the global eval property was shadowed,
even if by a variable holding the same value. ES5 requires us to treat these
as direct calls.

We still throw if calling indirect eval with a detached global object.

BUG=v8:994
TEST=mjsunit/eval.js

Review URL: http://codereview.chromium.org/8343054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9838 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-31 09:38:52 +00:00
ulan@chromium.org
fa8a71df9a Handlify CompileConstructStub. Based on 8391045. 
R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8399032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9837 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-28 14:08:43 +00:00
kmillikin@chromium.org
0df252b38b Handlify the remaining CallStubCompiler functions. 
Also, handlify functions for loading with interceptors and callbacks.
Remove some unneeded code.  Rename Foreign::address() because it
confusingly shadows HeapObject::address() which does something quite
different.

R=vegorov@chromium.org,ulan@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8391045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9834 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-28 12:37:29 +00:00
fschneider@chromium.org
8b1494b819 Temporarily disable target recording CallFunctionStub until issue 1789 is fixed. 
Review URL: http://codereview.chromium.org/8340029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-27 15:46:25 +00:00
yangguo@chromium.org
8624fb85d2 Tiny improvements on fast element conversion loops in ia32 and x64. 
Review URL: http://codereview.chromium.org/8403035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9820 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-27 14:19:22 +00:00
yangguo@chromium.org
b56466f4da Fixing dead code in empty array init. 
TEST=set JSArray::kPreallocatedArrayElements to larger than 4.

Review URL: http://codereview.chromium.org/8381014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9816 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-27 11:11:59 +00:00
yangguo@chromium.org
2923136f95 Fixing performance regression in issue 1787. 
BUG=v8:1787

Review URL: http://codereview.chromium.org/8390050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-27 07:59:12 +00:00
ulan@chromium.org
405d57fe00 Handlify CompileStoreCallback, CompileStoreInterceptor. 
R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8390045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9803 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-26 12:35:12 +00:00
ulan@chromium.org
beb0bbe3a9 Handlify simple functions of [keyed] store stub compiler. 
Handlified functions: CompileStoreField, CompileStoreGlobal, CompileStoreElement, CompileStorePolymorphic.

Based on 8375053.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8393003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-26 10:45:24 +00:00
ulan@chromium.org
a2fff744e0 Handlify CompileLoadGlobal, CompileLoadElement, CompileLoadPolymorphic. 
R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8375053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9788 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-26 09:58:32 +00:00
ulan@chromium.org
abeb5a4d93 Handlify simple functions of [keyed] load stub compiler. 
Handlified functions: CompileLoadNonexistent, CompileLoadField,
CompileLoadConstant, CompileLoadArrayLength, CompileLoadStringLength,
CompileLoadFunctionPrototype.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8383033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9773 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-25 12:26:07 +00:00
kmillikin@chromium.org
e05c04e5fa Handlify CallStubCompiler::CompileCallField. 
This function relies on a number of helpers for checking prototypes and
probing dictionaries.  It is not possible to wrap these helpers to retry
after allocation failure in a safe way---the assembler has no way to undo
what it has already assembled.

These functions have all been duplicated with handle and raw versions.  The
raw versions will eventually be removed completely.

R=ulan@chromium.org,vegorov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8332003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9769 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-25 09:24:49 +00:00
vegorov@chromium.org
a8a242ad5a CompileArrayPushCall should not use context register as a scratch. 
R=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/8330026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9768 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-25 09:07:09 +00:00
keuchel@chromium.org
e8bccc2cb0 Block scoped const variables. 
This implements block scoped 'const' declared variables in harmony mode. They
have a temporal dead zone semantics similar to 'let' bindings, i.e. accessing
uninitialized 'const' bindings in throws a ReferenceError.

As for 'let' bindings, the semantics of 'const' bindings in global scope is not
correctly implemented yet. Furthermore assignments to 'const's are silently
ignored. Another CL will introduce treatment of those assignments as early
errors.

Review URL: http://codereview.chromium.org/7992005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9764 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-25 08:33:08 +00:00
rossberg@chromium.org
70dc2fe968 Implement for-in loop for proxies. 
Fix related corner case for Object.keys.
Remove obsolete GET_KEYS builtin.

R=ricow@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8256015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9760 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 15:56:18 +00:00
fschneider@chromium.org
53e7502fa0 Fix bug in environment simulation after inlined call-as-function. 
This change is based on my previous change enabling inlining calls-as-function
fixing the bugs related to deoptimization.

The function value on top of the environment was dropped too late in the old code.
As a result we could get a wrong value on top after deoptimization.

This change includes r9619. It was reverted because of test failures that are fixed
with this patch.
Review URL: http://codereview.chromium.org/8360001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9758 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 13:53:08 +00:00
lrn@chromium.org
db95436018 Fix typo in type-name and reorder initialization order. 
Remember, when coming back to an old CL, do check that it still works.

Review URL: http://codereview.chromium.org/8351002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9754 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 12:19:55 +00:00
lrn@chromium.org
7ab6e55f78 Moved random generator state to global context. 
Change Random to take global context, not isolate.

BUG=v8:864

Review URL: http://codereview.chromium.org/8162014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 12:12:21 +00:00
lrn@chromium.org
6898ff2780 Remove one static initializer from disasm. 
Review URL: http://codereview.chromium.org/8381002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9752 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 12:07:35 +00:00
yangguo@chromium.org
215c26e3d3 Further improvements upon r9747. 
Review URL: http://codereview.chromium.org/8372028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9751 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 11:16:38 +00:00
kmillikin@chromium.org
ef31d0480a Handlify the remaining stub compiler functions for call ICs. 
Handlify StubCompiler functions for CallIC and KeyedCallIC cases
Megamorphic, Arguments, DebugBreak, and DebugPrepareStepIn.

R=ulan@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8372029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9750 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 10:55:00 +00:00
kmillikin@chromium.org
ec007b46d1 Handlify call cases for pre-monomorphic, normal, and miss. 
These cases turn out to be easy.  There is a lingering raw pointer
implementation of TryCompileCallMiss because it's need by some of the
unconverted call stubs.

R=ulan@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8366036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9749 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 09:33:11 +00:00
yangguo@chromium.org
5f7f79b012 Refactor and clean up array allocation across platforms. 
Review URL: http://codereview.chromium.org/8359034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9747 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 07:55:50 +00:00
keuchel@chromium.org
c6464d500b Replace boolean indications of strict mode by an enum value. 
Review URL: http://codereview.chromium.org/8344082

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9746 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-24 07:47:22 +00:00
vegorov@chromium.org
6c7a5d12c8 Avoid write-barriers when initializing newly created Code object. 
R=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/8365029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9738 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-21 10:37:56 +00:00
kmillikin@chromium.org
937006f761 Handlify StubCompiler::CompileCallInitialize. 
CallIC::GenerateInitialize and KeyedCallIC::GenerateInitialize are
verified safe for GC.

R=ulan@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8361028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9733 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-21 10:19:16 +00:00
kmillikin@chromium.org
e3792a6830 Handlify the stub cache lookup and patching for CallIC and KeyedCallIC. 
R=ulan@chromium.org,vegorov@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8357010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9729 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 17:08:53 +00:00
yangguo@chromium.org
bd5e694a9c Refactor elements kind conversion. 
Review URL: http://codereview.chromium.org/8355035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9724 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 12:36:45 +00:00
erik.corry@gmail.com
8f9721bbbf Shave 39% from snapshot size. 
Review URL: http://codereview.chromium.org/8344079

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 12:27:10 +00:00
whesse@chromium.org
388813581e Speed up comparison with a constant. 
Improve optimized code for comparison of an int32 against a constant, or comparison of two double constants.  Contributed by m.m.capewell.

Original codereview is http://codereview.chromium.org/7489045/.
This cl is just created in order to commit the change.

BUG=
TEST=

Review URL: http://codereview.chromium.org/8352040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9718 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 10:26:45 +00:00
danno@chromium.org
f7563019c7 Add flag to trace element kind transitions 
Currently only traces transitions from generated ia32 code.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8357004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 09:38:24 +00:00
jkummerow@chromium.org
3a9d6c04ba Introduce HTransitionElementsKind instruction. 
TEST=mjsunit/elements-kind

Review URL: http://codereview.chromium.org/8305001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-19 12:10:18 +00:00
fschneider@chromium.org
2791cd5a2c Allow inlining of named function expressions containing ThisFunction reference. 
Named function expression have an implicit local variable that
refers to the current function (ThisFunction). Before we only could inline
anonymous function expressions like:

A.prototype.foo = function() {}

as opposed to

A.prototype.foo = function foo() {}

This change enables inlining function of expressions like this.
Review URL: http://codereview.chromium.org/8346032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-19 11:41:22 +00:00
danno@chromium.org
e5f23399b4 Support array literals with FAST_DOUBLE_ELEMENTS ElementsKind. 
BUG=none
TEST=test/mjsunit/array-literal.js

Review URL: http://codereview.chromium.org/8258015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-19 11:36:55 +00:00
vegorov@chromium.org
e27d8fcbdc RegExpMacroAssembler::CheckStackGuardState should update input string pointer when it is moved or changed by GC. 
If input string was cons-string it might undergo short-circuiting during GC. This does not change input start if underlying seq-string (first element of cons-string) does not move but this makes input-string pointer on the native regexp's frame invalid.

R=lrn@chromium.org

Review URL: http://codereview.chromium.org/8343001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-19 11:01:02 +00:00
fschneider@chromium.org
e8a26d1eb1 Add write barrier helper for code patching and refactor stack check patching. 
The new helper avoids expensive FindCodeForInnerPointer invocation when we have
the host code object available. It is used when patching stack checks.

Also some comments on the ARM platform are corrected.
Review URL: http://codereview.chromium.org/8330021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-18 15:07:42 +00:00
kmillikin@chromium.org
56c763f023 Make the GC aware of JSReceiver pointers in LookupResults. 
The LookupResult utility class is used in handlified code, but it can
contain a raw pointer to the lookup's holder object.  Create a per-thread
stack of live LookupResults and iterate all the live ones on GC.

R=vegorov@chromium.org,erik.corry@gmail.com
BUG=
TEST=

Review URL: http://codereview.chromium.org/8341009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-18 11:18:55 +00:00
keuchel@chromium.org
7d89f0f3c8 Replace calls_eval() by calls_non_strict_eval() where possible. 
Review URL: http://codereview.chromium.org/8321002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-17 15:19:34 +00:00
lrn@chromium.org
5152d2e0da Reimplement Function.prototype.bind. 
Make instanceof work correctly.

BUG=v8:893

Review URL: http://codereview.chromium.org/8199004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-17 12:44:16 +00:00
yangguo@chromium.org
92fdeff125 Porting r9605 to x64 (elements kind conversion in generated code). 
Review URL: http://codereview.chromium.org/8271007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-17 10:44:47 +00:00
keuchel@chromium.org
0706a98b2a Introduce with scope and rework variable resolution. 
Review URL: http://codereview.chromium.org/7904008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-17 09:29:37 +00:00
mstarzinger@chromium.org
ac712f13c3 Fix evaluation order of GT and LTE operators. 
According to the ES5 spec all ">" and "<=" expressions should be be
evaluated left-to-right. This obsoletes old hacks for reversing the
order to be ES3 compliant.

R=lrn@chromium.org
BUG=v8:1752

Review URL: http://codereview.chromium.org/8275035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9641 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-17 07:43:40 +00:00
fschneider@chromium.org
948a323819 Revert r9619. 
It causes an assertion with deoptimizing from inlined code.
Review URL: http://codereview.chromium.org/8277034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-14 12:26:29 +00:00
fschneider@chromium.org
c68fc4126f Revert last revert. 
TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/8286023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9635 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-14 12:03:53 +00:00
fschneider@chromium.org
85ab75df50 Revert r9619. 
TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/8286022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-14 11:56:07 +00:00
fschneider@chromium.org
34534588fb Fix a number of bugs with inlining calls as function. 
1. Record AST id for CallFunctionStub.

2. Correctly extract cached target from CallFunctionStub inline cache.

3. Fix a bug when inling call as a function in effect or value context:
   Handle abnormal exits correcty.

4. Fix a bug when inlining call as a function in test context: drop function
   correctly from true and false block.

5. Avoid inlining mutually recursive functions by checking the stack of function
   states before inlining. This was not a bug, but is just a more general
   check to avoid recursive inlining.
Review URL: http://codereview.chromium.org/8258012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9619 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-14 08:43:27 +00:00
fschneider@chromium.org
212e4ae7d4 Eliminate write barrier for global stores at compile time if value stored is a smi. 
Omit smi check inside write barriers if the value is known to be a heap object.

Refine inferred types of some instructions.
Review URL: http://codereview.chromium.org/8256016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9618 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-14 07:45:18 +00:00
yangguo@chromium.org
fae807b3bb Elements kind conversion in generated code (ia32). 
BUG=
TEST=

Review URL: http://codereview.chromium.org/8241003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-13 10:53:31 +00:00
mstarzinger@chromium.org
1da890af54 Refactor how embedded pointers are visited. 
This refactoring (almost) gets rid of the requirement to get the target
object address for an object pointer embedded in code objects. This is
not possible on MIPS as pointers are encoded using two instructions. All
usages of RelocInfo::target_object_address() are (almost) obsoleted by
this change. The serializer still uses it, so MIPS will not yet work
with snapshots turned on.

R=danno@chromium.org,vegorov@chromium.org

Review URL: http://codereview.chromium.org/8245007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-12 15:43:41 +00:00
rossberg@chromium.org
1abf3ed0a4 Introduce collective --harmony flag. 
Shorten --harmony-block-scoping to --harmony-scoping.

R=keuchel@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8226017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-12 12:23:06 +00:00
jkummerow@chromium.org
312c534a6c Refactor and fix polymorphic KeyedStoreIC creation 
Review URL: http://codereview.chromium.org/8233011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 16:02:45 +00:00
jkummerow@chromium.org
184fdcf28b Track elements_kind transitions in KeyedStoreICs. 
Review URL: http://codereview.chromium.org/8166017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9577 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 09:33:00 +00:00
erik.corry@gmail.com
f900fc9d80 Remove some unused and unneeded flags. 
Review URL: http://codereview.chromium.org/8228004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 09:28:06 +00:00
fschneider@chromium.org
876fa09feb Move declaration of SerializedScopeInfo from variables.h to objects.h 
This eliminates compile-errors when assigning Handle<SerializedScopeInfo> to
Handle<Object> in a place where the declaration was not available because
variables.h was not included.

As a result I had to also move the enum Variable::Mode to v8globals.h and
rename it to VariableMode.
Review URL: http://codereview.chromium.org/8221004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 08:41:19 +00:00
yangguo@chromium.org
3249530ef0 Fixing issue 1757 (string slices of external strings). 
BUG=v8:1757
TEST=regress-1757.js

Review URL: http://codereview.chromium.org/8217011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-10 16:09:03 +00:00
danno@chromium.org
3b07abbdbe Activate smi-only optimizations for large array literals. 
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/8177005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9553 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-10 08:31:06 +00:00
keuchel@chromium.org
c1cf622fe9 Fast allocation of block contexts. 
Review URL: http://codereview.chromium.org/8066002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-06 15:59:02 +00:00
keuchel@chromium.org
80048c14b1 Fix load of potentially eval-shadowed let bindings. 
BUG=
TEST=test/mjsunit/harmony/block-let-semantics.js

Review URL: http://codereview.chromium.org/8118032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9541 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-06 15:24:20 +00:00
yangguo@chromium.org
3c812247aa Simplify compares in KeyedStoreIC::GenerateGeneric. 
Review URL: http://codereview.chromium.org/8068024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9514 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-04 12:17:08 +00:00
vegorov@chromium.org
777df2d878 Adjust contents of kAheadOfTime to match write-barrier stub called from CompileArrayPushCall. 
R=erik.corry@gmail.com
BUG=v8:1729

Review URL: http://codereview.chromium.org/8113034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-04 11:38:12 +00:00
fschneider@chromium.org
976d5f3797 Clean list of external references from internal objects like the hole value. 
Review URL: http://codereview.chromium.org/8114032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-04 09:07:50 +00:00
kmillikin@chromium.org
a4e0103708 Clean up the x86 assembler API. 
The API is inconsistent about when a register must be coerced to an operand
and when it can be used as a register.  Simplify usage by never requiring it
to be wrapped.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8086021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9507 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-03 11:44:39 +00:00
yangguo@chromium.org
5ed752de96 Porting r9456 to x64 (Optimize KeyedStoreGeneric for Smi arrays). 
Review URL: http://codereview.chromium.org/8054043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-29 14:08:21 +00:00
vegorov@chromium.org
36ae5f3811 Pass correct anchor_slot for EMBEDDED_OBJECT pointers from code objects. 
Correctly initialize newly created large-object pages when incremental marking with compaction is in progress.

R=erik.corry@gmail.com
BUG=v8:1737

Review URL: http://codereview.chromium.org/8070002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-28 17:45:58 +00:00
erik.corry@gmail.com
07ba7ad073 Move the is_pregenerated flag so it does not overlap other flags. 
Remove the before-or-after InstanceOf stub rule, which was too
subtle and lacked checking ssertions.
Unify the way the CEntry stub is pregenerated so that it is done
in the same way.
Review URL: http://codereview.chromium.org/8065006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9466 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-28 12:23:40 +00:00
erik.corry@gmail.com
bbcafaa2d5 Make sure we don't flush the pregenerated stubs, since they need 
to be always present, so that we can call them from other stubs
without trying to generate stubs while we are generating stubs.
Review URL: http://codereview.chromium.org/8052029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-28 10:32:12 +00:00
danno@chromium.org
1b5a2381ec Optimize KeyedStoreGeneric for Smi arrays. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/8022002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9456 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-27 16:15:29 +00:00
vegorov@chromium.org
f2ff85ad71 CallFunctionStub was missing a write-barrier for write into the global cell. 
R=fschneider@chromium.org
BUG=v8:1733

Review URL: http://codereview.chromium.org/8054012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9455 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-27 13:45:13 +00:00
fschneider@chromium.org
27e1a8d414 Improve our simple elimination of hole checks. 
Currently we avoid checking for the hole value after array loads, if the
result is only used by instructions that definitely deoptimize in case
of the hole value (HChange instructions).

This change performs the same procedure for loading from deleteable/read-only
global variable where we can also avoid the check in the same cases.
Review URL: http://codereview.chromium.org/8054008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-27 13:03:19 +00:00
kmillikin@chromium.org
bcb781d76a Record function call targets, use them for inlining. 
Introduce a version of the CallFunctionStub that records monomorphic
call targets in a one-element cache in the instruction stream.  Use
the cache for inlining attempts in the optimizing backend.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7966038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9449 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-27 11:42:02 +00:00
vegorov@chromium.org
0df7441668 Tighten up assertions checking GC-safety of stub calls. 
Ensure that stubs are properly pregenerated on all platforms.

R=erik.corry@gmail.com
BUG=v8:1729

Review URL: http://codereview.chromium.org/8041035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9447 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-27 10:53:22 +00:00
jkummerow@chromium.org
0455aadbeb Add Crankshaft support for smi-only elements 
Review URL: http://codereview.chromium.org/8002019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9426 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 12:09:04 +00:00
fschneider@chromium.org
ba6cd937ff Add code comments to deferred code objects to make debugging easier. 
Review URL: http://codereview.chromium.org/8046003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 09:32:10 +00:00
kmillikin@chromium.org
883f32695b Enable inlining functions with contexts different than their caller. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7925007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9421 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 09:17:56 +00:00
yangguo@chromium.org
e6509e77d2 Small refactor to KeyedStoreIC::GenerateGeneric to make it slightly faster. 
Review URL: http://codereview.chromium.org/8008016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9418 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 07:36:44 +00:00
yangguo@chromium.org
65b1ea22fe Porting r9392 to x64 (smi-only arrays). 
Review URL: http://codereview.chromium.org/7992003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-23 14:19:04 +00:00
whesse@chromium.org
2e40bc244a Add dynamic stack frame alignment to optimized functions with untagged doubles on the stack. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7976024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-23 13:28:17 +00:00
vegorov@chromium.org
bfd048173f Notify collector about lazily deoptimized code objects. 
All slots that were recorded on these objects during incremental marking should be ignored as they are no longer valid.

To filter such invalidated slots out during slots buffers iteration we set all markbits under the invalidated code object to 1 after the code space was swept and before slots buffers are processed.

R=erik.corry@gmail.com
BUG=v8:1713
TEST=test/mjsunit/regress/regress-1713.js

Review URL: http://codereview.chromium.org/7983045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-22 16:01:35 +00:00
danno@chromium.org
f48c9f6557 Basic support for tracking smi-only arrays on ia32. 
Activated by the flag --smi-only-arrays

Currently not crankshaft support, using flag on non-ia32 platforms will lead to write barrier misses and crashes.

BUG=none
TEST=elements_kind.js

Review URL: http://codereview.chromium.org/7901016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-22 11:30:04 +00:00
rossberg@chromium.org
fdade92c20 Reorganize object type enum, such that proxies are no longer in the middle 
of the range of proper JS objects.

Unfortunately, callable types no longer form a range now. However, there
are only two anyway. We put them at either end of the range of JS object
types so that certain compares can be combined.

R=erik.corry@gmail.com,kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7737036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-21 14:46:54 +00:00
erik.corry@gmail.com
c8fe713986 Put back the asserts in RememberedSetHelper, but correct this time. 
Fix some incorrect comments.
Review URL: http://codereview.chromium.org/7977005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9344 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 13:32:27 +00:00
vegorov@chromium.org
867bb733af Remove incorrect debug-code assertion. 
We should not use slot address to find out the page. This does not work for large pages.

Also this assertion is not always true (violated during incremental marking).

R=erik.corry@gmail.com
TEST=mozilla/js1_5/extensions/regress-371636

Review URL: http://codereview.chromium.org/7981001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9339 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 11:30:18 +00:00
lrn@chromium.org
610281f4ee Fix calculation of live-bytes in pages. 
The "live bytes" count is *really* a "marked black" count - i.e., the count of bytes *known* to be live.

Fix aggravating bug on X64 where assembler code used a value that was off
by a factor of 2^31.

Ensure that sweeping clears live-bytes. Added other missing increments.

Added print statements to trace live-byte modifications, under a flag.

Still a few cases of undercounting left.

(New issue to merge from GC branch to bleeding_edge)

Review URL: http://codereview.chromium.org/7970009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9338 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 11:20:00 +00:00
yangguo@chromium.org
fdffe67205 Initialize pre-allocated fields of JSObject with undefined. 
BUG=94873

Review URL: http://codereview.chromium.org/7929001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9335 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 10:06:23 +00:00
svenpanne@chromium.org
29618c079a Make newer GCCs happier: Removed unused variables. 
Review URL: http://codereview.chromium.org/7969014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9334 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 09:44:23 +00:00
svenpanne@chromium.org
d4bb00230b Make newer GCCs happier: Fixed NULL vs. 0 confusion. 
Review URL: http://codereview.chromium.org/7970008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9333 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 09:43:58 +00:00
kmillikin@chromium.org
22ef98dc66 Fix a deoptimization bug. 
We reset the count of outgoing arguments, used for the index in the
frame's outgoing arguments, for each level of inlining.  This could
result in the arguments overlapping, rather than stacking on top of
each other.

R=whesse@chromium.org,fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7932022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-20 07:14:30 +00:00
vegorov@chromium.org
ac36cb4504 Merge experimental/gc branch to the bleeding_edge. 
Review URL: http://codereview.chromium.org/7945009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-19 18:36:47 +00:00
svenpanne@chromium.org
cf63503cad Unify the handling of comparinsons against null and undefined. 
Although this patch is not small, most parts of it are rather mechanical:

 * First of all, the concept of a 'nil-like' value is introduced, which can be
   null or undefined. They are treated symmetrically regarding comparisons, so
   it makes sense to handle them in a uniform manner. It is a mystery why
   JavaScript defines two of those beasts, when even *one* is a design wart...

 * Extended and renamed a few things which now handle undefined in addition to
   null.

 * Made the parts of the full code generator and the hydrogen generation which
   deal with comparisons a bit more similar regarding their handling of special
   cases.

 * Refactored the syntactical detection of special cases for comparisons,
   hopefully making them a bit more readable and less copy-n-paste-oriented.
   Things like this should really be a one-liner in any sane programming
   language... :-P

 * Cut down the length of the argument lists of a few functions to something
   less insane, making them more easily understandable locally. This involves
   minor code duplication, but this was a good tradeoff and can be remedied
   later if necessary.

 * Replaced some boolean arguments with more readable enums.

 * Fixed a TODO: Values which are definitely a Smi or unboxed can never be equal
   to null or undefined.
Review URL: http://codereview.chromium.org/7918012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9323 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-19 14:50:33 +00:00
erik.corry@gmail.com
ff5e1c9822 Fix asserts and GC unsafeness in stub generation, bug=1689. 
Review URL: http://codereview.chromium.org/7920006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9311 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-16 13:06:51 +00:00
rossberg@chromium.org
07469fa5ae Make function proxies work as constructors. 
R=kmillikin@chromium.org
BUG=v8:1543
TEST=

Review URL: http://codereview.chromium.org/7628021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9310 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-16 12:26:29 +00:00
erik.corry@gmail.com
ab30559fee Fix some stub calling asserts on x64. 
Review URL: http://codereview.chromium.org/7922008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9309 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-16 11:29:13 +00:00
erik.corry@gmail.com
44d931c9d5 Add asserts to ensure that we: 
1) Don't make a call to C without having a valid frame on the stack.
2) Don't generate a call to a stub while generating a stub, unless we can be
sure that the stub we are calling has already been generated (the stub
generation code is not reentrant wrt. GC).
Review URL: http://codereview.chromium.org/7891042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9297 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-15 11:30:45 +00:00
svenpanne@chromium.org
8c744768e2 Nuke CompareToNull AST node. 
The Great Master Plan is to move the recognition of special cases for
comparisons further down the compilation pipeline where more information is
available. This is a first step into this direction: The special handling of
equality comparisons involving null is pushed from the parser to the code
generators, removing the need for a special AST node. (There are rumors from
usually well-informed sources that this node type is actually a relic of ancient
crankshaft days...)

The next steps will be the unification of null/undefined handling and pushing
the special case handling in crankshaft even further down the pipeline, enabling
the recognition of cases like "var foo=null; if (foo === bar) ...", but these
will be in separate CLs.
Review URL: http://codereview.chromium.org/7887037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9293 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-15 09:09:40 +00:00
kmillikin@chromium.org
40cd59f238 Remove in-loop tracking for call ICs. 
We passed this flag around in a lot of places and had differenc call
ICs based on it, but never did any real specialization based on its
value.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7869009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9260 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-13 12:53:28 +00:00
rossberg@chromium.org
e645597aa7 Implement function proxies (except for their use as constructors). 
Introduce new %Apply native.

Extend Execution::Call to optionally handle receiver rewriting (needed for %Apply).

Fix Function.prototype.bind for functions that have .apply modified.

R=kmillikin@chromium.org
BUG=v8:1543
TEST=

Review URL: http://codereview.chromium.org/7623011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-13 11:42:57 +00:00
kmillikin@chromium.org
636991a0b3 Use the BitField class for Code::Flags. 
Use the BitField helper class for the code flags, so that we do not have to
define both a shift and a mask explicitly.  This makes changing the flags
layout simpler.

Also, make the 'mask' and 'max' members of BitField into constants, because
they are constant and so that they can be used as constant expressions.
E.g., so they can be used in declaring other const members or in static
asserts.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7787028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-12 10:50:50 +00:00
mikhail.naganov@gmail.com
f8e5c71e18 Rename SmartPointer to SmartArrayPointer. 
As pointed out in: http://codereview.chromium.org/7754007/#msg5

"SmartPointer should have been named SmartArrayPointer as it expects an input
allocated using new[] and deallocates it using delete[]. Using it as a simple
scoped pointer for a single object is incorrect."

R=mnaganov@chromium.org

Review URL: http://codereview.chromium.org/7860011
Patch from Thiago Farina <tfarina@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9215 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-09 22:39:47 +00:00
danno@chromium.org
9b2de409f9 Mechanical refactor to move ElementsKind type out of JSObject. 
R=svenpanne@chromium.org
BUG=none
TEST=all

Review URL: http://codereview.chromium.org/7849017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9208 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-09 09:35:57 +00:00
ricow@chromium.org
b8cbe08fcc Fix presubmit errors caused by updated depot tools 
This is all blank line before/after linting errors.
Review URL: http://codereview.chromium.org/7754022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-08 19:57:14 +00:00
kmillikin@chromium.org
78ce35effd Use more style-guide-friendly names for some constants. 
This is a renaming only change.

R=erik.corry@gmail.com
BUG=
TEST=

Review URL: http://codereview.chromium.org/7849020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-08 16:29:57 +00:00
kmillikin@chromium.org
94777e213d Remove variable rewrites and the unneccesary Slot class. 
R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7824038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9162 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-07 11:02:31 +00:00
kmillikin@chromium.org
8b165d414f Fix a bug in abrupt exit from with or catch inside finally. 
When with or catch is nested inside finally, we were not properly restoring
the context in the stack for the finally code.  Also, as a small
optimization, restore it from the handler block instead of iteratively
unwinding contexts.

R=fschneider@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7837023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9160 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-07 09:21:44 +00:00
keuchel@chromium.org
0820205316 Avoid dynamic lookup when initializing let declared variables. 
'Let's inside a 'with' would initialize the variable
using the StoreContextSlot runtime function which
would fail because it checks that the variable does
not hold the hole value.

Review URL: http://codereview.chromium.org/7792098

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9156 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-06 21:22:35 +00:00
jkummerow@chromium.org
1db6be7f2b Fix a few clang warnings (which -Werror treats as errors) 
Review URL: http://codereview.chromium.org/7779033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9141 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-06 07:41:45 +00:00
fschneider@chromium.org
913f444cb7 Support declarations of context allocated locals in Crankshaft. 
The changes to scopes and parser introduce a VariableProxy
wrapping the function-name variable for function literals.
It seems the easiest way to get an AST id for the HSimulate
after context-slot stores in declarations.
Review URL: http://codereview.chromium.org/7826009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-01 16:33:57 +00:00
yangguo@chromium.org
1be99a9627 Generated code for substring slices in x64 and arm. 
Review URL: http://codereview.chromium.org/7795018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-01 15:24:26 +00:00
keuchel@chromium.org
d434d3158c Detect conflicting variable bindings in harmony mode. 
BUG=
TEST=mjsunit/harmony/block-conflicts.js

Review URL: http://codereview.chromium.org/7756014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9102 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-01 12:31:18 +00:00
lrn@chromium.org
fdc7f60f42 Make functions on the built-in object non-writable. 
Review URL: http://codereview.chromium.org/7736018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-01 11:57:02 +00:00
fschneider@chromium.org
ffc6c7e56b Introduce local function declarations in Crankshaft and fix issue 1647. 
We have to emit code for declarations later into the body block
(and not into the start block) so that the environment contains
the correct values.

In order to capture the environment effect of the declarations
that generate code (function declarations) I inserted a separate
AST id and a HSimulate after the declarations are visited.

Also fixes handling deopt in named function expressions:
BUG=v8:1647
TEST=test/mjsunit/regress/regress-fundecl.js, test/mjsunit/regress/regress-1647.js
Review URL: http://codereview.chromium.org/7776009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9083 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-31 13:26:08 +00:00
keuchel@chromium.org
42388ad5c7 Temporal dead zone behaviour for let bindings. 
BUG=
TEST=mjsunit/harmony/block-let-semantics.js

Review URL: http://codereview.chromium.org/7671042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9070 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-30 11:23:57 +00:00
yangguo@chromium.org
4cc8ca359a Fixing presubmit issue. 
Review URL: http://codereview.chromium.org/7792034

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9066 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-30 09:05:40 +00:00
yangguo@chromium.org
d5a0b00bde Fixing compile error introducted by a typo in r9064. 
Review URL: http://codereview.chromium.org/7790022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-30 08:41:54 +00:00
yangguo@chromium.org
3077e8aa2f Generated code for substring slices in ia32. 
Review URL: http://codereview.chromium.org/7744052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-30 08:22:41 +00:00
yangguo@chromium.org
596daba583 Fix for a possible bug in RegExp stack guard. 
Review URL: http://codereview.chromium.org/7744051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9058 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-29 13:04:33 +00:00
jkummerow@chromium.org
5262061eac Convert a bunch of ASSERTs to STATIC_ASSERTs 
making our debug binaries ever so slightly faster

Review URL: http://codereview.chromium.org/7776010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9057 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-29 13:02:35 +00:00
yangguo@chromium.org
2ade6a5a2e Small fix for STATIC_ASSERT. 
Review URL: http://codereview.chromium.org/7776007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-29 11:41:23 +00:00
fschneider@chromium.org
a58b9ba90b Remove code handling parameters rewritten to properties (aka synthetic properties). 
After merging the new arguments branch, there is no need for this code anymore.

TEST=all tests pass
Review URL: http://codereview.chromium.org/7753030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9031 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-29 07:07:39 +00:00
lrn@chromium.org
cd3588d582 Make (some) functions called from builtin functions use the callback's global as receiver. 
Changes GetGlobalReceiver() to GetDefaultReceiver(func) that returns undefined
for strict and native functions, and the function's context's global proxy
for "normal" functions.

BUG=v8:1547
TEST=cctest/api-test/ForeignFunctionReceiver

Review URL: http://codereview.chromium.org/7741042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9030 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-26 13:53:00 +00:00
yangguo@chromium.org
77141f78ff Tentative implementation of string slices (hidden under the flag --string-slices). 
TEST=test/mjsunit/string-slices.js

Review URL: http://codereview.chromium.org/7477045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9027 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-26 13:03:30 +00:00
yangguo@chromium.org
92b9bdfec5 Fixed regression introduced in r9023. 
Review URL: http://codereview.chromium.org/7740049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9026 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-26 11:56:12 +00:00
yangguo@chromium.org
d727ba855c Changed some jumps to short jumps in IA32 generated code. 
Review URL: http://codereview.chromium.org/7745022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9023 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-26 08:22:13 +00:00
mstarzinger@chromium.org
d4a6b4ac5b Make instruction for write barrier smaller. 
R=yangguo@chromium.org
BUG=v8:1495

Review URL: http://codereview.chromium.org/7703007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-22 09:10:47 +00:00
kmillikin@chromium.org
dc917453b3 Clean up the nesting stack in the full code generator. 
Remove unused methods, introduce named constants, and attempt to add some
sanity to naming.

BUG=
TEST=

Review URL: http://codereview.chromium.org/7669018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-19 09:54:08 +00:00
keuchel@chromium.org
c6c504f8b6 Parse harmony let declarations. 
Implementation of the harmony block scoped let bindings as proposed here:
http://wiki.ecmascript.org/doku.php?id=harmony:block_scoped_bindings

Changes to the syntax are explained there. They are active under the
harmony_block_scoping_ flag in the parser.

Review URL: http://codereview.chromium.org/7616009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-16 14:24:12 +00:00
jkummerow@chromium.org
9295a3a0bb Use immediates when possible for HBoundsCheck and HLoadKeyedFastElement 
Review URL: http://codereview.chromium.org/7608020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8943 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-16 13:32:27 +00:00
kmillikin@chromium.org
91553bbacd Simplify handling of exits from with and catch. 
Remove the try/finally used for with and catch.  Instead of using
try/finally to handle break and continue from with or catch,
statically track nesting dept and clean up when compiling break or
continue.

And instead of using try/finally to handle throw to handler in a frame
whose pc is inside a with or catch, store the context that the handler
should run in in the handler itself.

BUG=
TEST=

Review URL: http://codereview.chromium.org/7618007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-12 10:52:49 +00:00
fschneider@chromium.org
6549163a55 Add roundsd instruction to ia32 and use it in optimized Math.floor. 
It is available platforms that have SSE 4.1 and allows us to handle
negative numbers without deoptimization. Before we would deoptimize
on negative inputs to Math.floor. x64 already uses this instruction.

* Change Math.floor unit test to make sure every test case gets
optimized by changing the source code for each test case.

* Fix HIR debug printing for some instructions.
Review URL: http://codereview.chromium.org/7628017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-12 10:13:40 +00:00
danno@chromium.org
d5d7185578 Create a common base class for Fixed-, FixedDouble- and ExternalArrays. 
Also unify Crankshaft code to load array length.

BUG=v8:1493
TEST=external-arrays.js

Review URL: http://codereview.chromium.org/7600025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-11 14:00:16 +00:00
svenpanne@chromium.org
06bea35f7f Simplify and optimize ToBoolean handling. 
Changing our builtin JavaScript code slightly, we can make sure that we never
see internal objects as arguments for ToBoolean at runtime. Removing that case
from the stub generator and crankshaft makes things a lot easier.

Heap numbers can never be undetectable (only strings and spec objects can), so
we can leave out a useless test.

Try to re-use a non-null register value when returning 'true' in some cases.

Removed special handling of the 'handle all' case, it will very probably never
happen in real code and only makes things more complicated.

Improved naming of the ToBoolean stubs a bit, reflecting the order in which
cases are handled in the code itself.
Review URL: http://codereview.chromium.org/7497063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-11 07:22:16 +00:00
fschneider@chromium.org
f17bd8ca51 Fix three bugs with handling negative zero in the optimizing compiler. 
* Bug fix for range analysis (contributed by Andy Wingo). Ranges of
double values have to include negative zero. Original code review:
 http://codereview.chromium.org/7514040/

* Fix a bug in optimized Math.round on ARM. When emitting minus-zero checks
we previously return a wrong result because of incorrect register assignment.

* Fix performance problem in IA32 and x64. Refine the checks
for minus zero and avoid unnecessary deoptimizations on Math.floor.

* Improve mjsunit test for Math.round to make sure we also
 get the optimized version of the code for each test case.
Review URL: http://codereview.chromium.org/7604028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8877 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-10 12:32:43 +00:00
rossberg@chromium.org
bd18514972 Implement Harmony semantics for typeof null (behind a flag). 
Harmony is intended to make typeof null === "null". This may
break existing programs. Implementing it will allow us to run
some tests on the actual web.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7598030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8876 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-10 12:12:06 +00:00
whesse@chromium.org
92e7656c4d Clean up TranslationIterator and DeoptimizationInputDataPrint. 
Without this refactoring, they break when we add alignment padding in the Translation info.

BUG=
TEST=

Review URL: http://codereview.chromium.org/7569009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8851 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-08 07:17:01 +00:00
vitalyr@chromium.org
5b63bc1fe8 Static state cleanup: add more consts. 
R=vegorov@chromium.org

Review URL: http://codereview.chromium.org/7491052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-05 11:32:46 +00:00
vegorov@chromium.org
129a2ba06b Avoid uninitialized member warning on gcc 4.3.4 
Patch by Bert Belder.

Review URL: http://codereview.chromium.org/7553011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8791 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-02 16:02:33 +00:00
vegorov@chromium.org
9226cfe5b7 Ensure that GenerateStoreFastDoubleElement returns stored value on all paths. 
BUG=chromium:91013
TEST=test/mjsunit/regress/regress-91013.js
Review URL: http://codereview.chromium.org/7551009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-02 13:36:38 +00:00
vegorov@chromium.org
9f24cd0eef Mark optimized modulo and memcpy code pages -w after writing them. 
BUG=91245

Review URL: http://codereview.chromium.org/7538028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8780 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-02 13:34:52 +00:00
svenpanne@chromium.org
ddf38624b5 Tiny cleanup. 
Review URL: http://codereview.chromium.org/7541020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8769 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-01 13:35:11 +00:00