* All Lithium instructions have an associated Hydrogen instruction now,
  simplifying things.

* Consistently print <Lithium instruction number,Hydrogen value id> prefixes.

* Do not print uninteresting Lithium instructions like empty gaps, jumps to the
  next instruction, etc.

* Removed special handling of HChange-like instructions, it is totally unclear
  why they had this special treatment. If we really want to print more
  information about Lithium instructions, we should do it in a totally way,
  anyway (e.g. by unifying things with the generation of hydrogen*.cfg files).

* Made deferred code and the jump table stand out a little bit more.

* Print info about special blocks like loop headers and OSR entries.

Review URL: https://codereview.chromium.org/14371005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Improvements in lithium code generation. Recognizing if some operands are constants, we can often save on registers and instructions.

BUG=

Review URL: https://codereview.chromium.org/14022011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14364 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* src/ast.h:
* src/parser.cc: Differentiate between the different kinds of yields, in
  anticipation of boxing return values.  Parse `return' into `yield' in
  a generator.

* src/runtime.h:
* src/runtime.cc (Runtime_SuspendJSGeneratorObject): New horrible
  runtime function: saves continuation, context, and operands into the
  generator object.

* src/arm/full-codegen-arm.cc (VisitYield):
* src/ia32/full-codegen-ia32.cc (VisitYield):
* src/x64/full-codegen-x64.cc (VisitYield): Arrange to call
  SuspendJSGeneratorObject.  If the call returns the hole, we suspend.
  Otherwise we resume.

BUG=v8:2355
TEST=These codepaths are tested when the generator is first invoked, and so
are covered by mjsunit/harmony/generators-objects.js.

Review URL: https://codereview.chromium.org/13704010

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

GetNextEmittedBlock is always called with the same argument (an instance
variable), so let's remove it. In EmitGoto, avoid assignment to an argument.

This CL is split off another CL for easier reviewing.

Review URL: https://codereview.chromium.org/14246031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14349 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/13886013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14342 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

is created for these instructions via a compile info flag.

BUG=

Review URL: https://codereview.chromium.org/14354003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14339 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* Let GCC check the arguments of LCodeGen::Coment.
* Fixed a few call sites.
* Made basic blocks a little bit more visible in the code output.
* Sorted #includes.

Review URL: https://codereview.chromium.org/14079007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/14344004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/14083008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14324 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/14307006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14323 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org,jkummerow@chromium.org

Review URL: https://codereview.chromium.org/14205006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14316 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/13881016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14312 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit https://code.google.com/p/v8/source/detail?r=14230

The reason for revert is Win64 mksnapshot failure.

Conflicts:
	src/arm/simulator-arm.cc

BUG=

Review URL: https://codereview.chromium.org/14096025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14307 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Simple strategy: Transform unary plus into multiplication by one directly in the
parser and remove it from the Hydrogen graph later. This gives correct type
feedback without any special stub for it.

BUG=v8:2527

Review URL: https://codereview.chromium.org/13902013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14306 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/13996010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14302 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/14053008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/13932006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=chromium:231217

Review URL: https://codereview.chromium.org/14066009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/13952008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* src/contexts.h:
* src/bootstrapper.cc (InitializeExperimentalGlobal): Make generator
  meta-objects, and store maps for constructing generator functions
  and their prototypes.

* src/factory.h:
* src/factory.cc (MapForNewFunction): New helper.
  (NewFunctionFromSharedFunctionInfo): Use the new helper.

* src/heap.cc (AllocateFunctionPrototype, AllocateInitialMap): For
   generators, allocate appropriate prototypes and maps.

* src/code-stubs.h:
* src/arm/code-stubs-arm.h:
* src/arm/full-codegen-arm.h:
* src/ia32/code-stubs-ia32.h:
* src/ia32/full-codegen-ia32.h:
* src/x64/code-stubs-x64.h:
* src/x64/full-codegen-x64.h: Allow fast closure creation for generators,
using the appropriate map.

* test/mjsunit/harmony/builtins.js: Add a special case for
  GeneratorFunctionPrototype.prototype.__proto__.

BUG=
TEST=mjsunit/harmony/generators-runtime

Review URL: https://codereview.chromium.org/13192004

Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This makes the logic in the Hydrogen->Lithium translation much clearer, avoids a
hand-written dispatch and even opened up opportunities for simpler register
constraints for some operations/platforms.

Doing the same for the Hydrogen level might be done in a follow-up CL.

Review URL: https://codereview.chromium.org/13841003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14233 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Native method invocation from the arm/simulator-arm.cc previously made
non-portable assumptions about calling conventions. This was okay for 32-bit
stack-based machines, where by-value structs are automatically materialized
on the stack, and where both int and double parameters could be passed on the
stack. However they are not okay for x86-64, which has an elaborate scheme
for passing parameters in registers.

This CL replaces the previous non-portable code paths with portable code,
using call-sites that accurately match the prototype of the callee.

BUG=2614

Review URL: https://chromiumcodereview.appspot.com/13818012
Patch from Brad Chen <bradchen@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/13447003

Patch from Zheng Liu <zheng.z.liu@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14225 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/14063006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/12880017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14211 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:2618

Review URL: https://chromiumcodereview.appspot.com/13811014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14202 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/13866005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14186 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/13928006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14184 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add check when the global object is the last in the chain.

Review URL: https://chromiumcodereview.appspot.com/13730002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14173 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* src/frames.h: Move StackHandlerConstants here, as it is the same for
  all architectures.

BUG=

Review URL: https://codereview.chromium.org/13638002
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The prototype is implicitly checked through a map check of the holder.
This is either checked in CheckPrototypes, or as part of the IC.

Review URL: https://chromiumcodereview.appspot.com/13529017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14155 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* src/scopes.h (ForceContextAllocation, has_forced_context_allocation):
  New interface to force context allocation for an entire function's
  scope.

* src/scopes.cc: Unless a new scope is a function scope, if its outer
  scope has forced context allocation, it should also force context
  allocation.
  (MustAllocateInContext): Return true if the scope as a whole has
  forced context allocation.
  (CollectStackAndContextLocals): Allow temporaries to be
  context-allocated.

* src/parser.cc (ParseFunctionLiteral): Force context allocation for
  generator scopes.

* src/v8globals.h (VariableMode): Update comment on TEMPORARY.

* src/arm/full-codegen-arm.cc (Generate):
* src/ia32/full-codegen-ia32.cc (Generate):
* src/x64/full-codegen-x64.cc (Generate): Assert that generators have no
  stack slots.

* test/mjsunit/harmony/generators-instantiation.js: New test.

BUG=v8:2355
TEST=mjsunit/harmony/generators-instantiation

Review URL: https://codereview.chromium.org/13408005
Patch from Andy Wingo <wingo@igalia.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14152 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org

Review URL: https://codereview.chromium.org/12521011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/13620003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14136 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/12491023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14127 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=vegorov@chromium.org
BUG=chromium:201590

Review URL: https://codereview.chromium.org/13527007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14124 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/13461020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/12490013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/12700006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14090 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/12440041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14065 ce2b1a6d-e550-0410-aec6-3dcde31c8c00