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  1. 25 Sep, 2015 24 commits
  3. 24 Sep, 2015 16 commits
    • stefan.penner's avatar
      Don’t smash globals used by the test helper itself. · ab989898
      stefan.penner authored 
      Since https://codereview.chromium.org/366103005 the promise tests null out
various globals, to ensure the promise implementation doesn’t itself rely
on functions patchable by monkeys.

Unfortunately, doing so breaks test assertion failures which rely on
those globals.

This isn’t the ideal solution, but does improve the current state.

R=littledan@chromium.org,domenic@chromium.org
LOG=N
BUG=

Review URL: https://codereview.chromium.org/1370583002

Cr-Commit-Position: refs/heads/master@{#30922}
      ab989898
    • ofrobots's avatar
      [heap] refactor inline allocation step code · 1c5e511d
      ofrobots authored 
      Once I improved byte accounting done for incremental mark in [1], there is some
code duplication that becomes apparent. This commit refactors the duplicated
code into a private method on NewSpace. This also makes it easy to add new
consumers of inline allocation steps in the future.

[1] https://codereview.chromium.org/1274453002/

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1351983002

Cr-Commit-Position: refs/heads/master@{#30921}
      1c5e511d
    • mstarzinger's avatar
      [turbofan] Remove dead code from Diamond class. · d90fdd13
      mstarzinger authored 
      R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1365963003

Cr-Commit-Position: refs/heads/master@{#30920}
      d90fdd13
    • mstarzinger's avatar
      [turbofan] Call ArgumentsAccessStub to materialize arguments. · 9b12ec9a
      mstarzinger authored 
      This lowers JSCreateArgument nodes to call the ArgumentsAccessStub for
help with materializing arguments objects when possible. Along the way
this changes the calling convention of said stub to take parameters in
registers instead of on the stack.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1348773002

Cr-Commit-Position: refs/heads/master@{#30919}
      9b12ec9a
    • oth's avatar
      [Interpreter] Basic flow control. · 347fa906
      oth authored 
      + Add bytecodes for conditional and unconditional jumps.
+ Add bytecodes for test/compare operations.
+ Expose jumps in bytecode-array-builder and add BytecodeLabel class for
  identifying jump targets.
+ Add support for if..then...else in the bytecode-generator.
+ Implement jump bytecodes in the interpreter. Test/compare operations
  dependent on runtime call for comparisons.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1343363002

Cr-Commit-Position: refs/heads/master@{#30918}
      347fa906
    • machenbach's avatar
      [test] Make fuzzer output the archive file name for easy upload. · fac9e220
      machenbach authored 
      NOTRY=true

Review URL: https://codereview.chromium.org/1365083002

Cr-Commit-Position: refs/heads/master@{#30917}
      fac9e220
    • mstarzinger's avatar
      [turbofan] Make Node::set_op safer via wrapper. · da9c42dd
      mstarzinger authored 
      This introduces the NodeProperties::ChangeOp helper which guards node
operator changes so that additional checking can be done without any
additional dependencies being pulled into the Node class. For now only
the input count is checked, but additional checking might follow.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1366753003

Cr-Commit-Position: refs/heads/master@{#30916}
      da9c42dd
    • cbruni's avatar
      PrototypeInfo.validity_cell: adding comment · 9e5b0a5a
      cbruni authored 
      BUG=

Review URL: https://codereview.chromium.org/1370443002

Cr-Commit-Position: refs/heads/master@{#30915}
      9e5b0a5a
    • danno's avatar
      Revert of Remove register index/code indirection (patchset #17 id:320001 of... · 3ac27431
      danno authored 
      Revert of Remove register index/code indirection (patchset #17 id:320001 of https://codereview.chromium.org/1287383003/ )

Reason for revert:
Failures on greedy RegAlloc, Fuzzer

Original issue's description:
> Remove register index/code indirection
>
> Previous to this patch, both the lithium and TurboFan register
> allocators tracked allocated registers by "indices", rather than
> the register codes used elsewhere in the runtime. This patch
> ensures that codes are used everywhere, and in the process cleans
> up a bunch of redundant code and adds more structure to how the
> set of allocatable registers is defined.
>
> Some highlights of changes:
>
> * TurboFan's RegisterConfiguration class moved to V8's top level
>   so that it can be shared with Crankshaft.
> * Various "ToAllocationIndex" and related methods removed.
> * Code that can be easily shared between Register classes on
>   different platforms is now shared.
> * The list of allocatable registers on each platform is declared
>   as a list rather than implicitly via the register index <->
>   code mapping.
>
> Committed: https://crrev.com/80bc6f6e11f79524e3f1ad05579583adfd5f18b2
> Cr-Commit-Position: refs/heads/master@{#30913}

TBR=akos.palfi@imgtec.com,bmeurer@chromium.org,jarin@chromium.org,paul.lind@imgtec.com,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1365073002

Cr-Commit-Position: refs/heads/master@{#30914}
      3ac27431
    • danno's avatar
      Remove register index/code indirection · 80bc6f6e
      danno authored 
      Previous to this patch, both the lithium and TurboFan register
allocators tracked allocated registers by "indices", rather than
the register codes used elsewhere in the runtime. This patch
ensures that codes are used everywhere, and in the process cleans
up a bunch of redundant code and adds more structure to how the
set of allocatable registers is defined.

Some highlights of changes:

* TurboFan's RegisterConfiguration class moved to V8's top level
  so that it can be shared with Crankshaft.
* Various "ToAllocationIndex" and related methods removed.
* Code that can be easily shared between Register classes on
  different platforms is now shared.
* The list of allocatable registers on each platform is declared
  as a list rather than implicitly via the register index <->
  code mapping.

Review URL: https://codereview.chromium.org/1287383003

Cr-Commit-Position: refs/heads/master@{#30913}
      80bc6f6e
    • titzer's avatar
      Refactor the StackFrameIterator::ComputeType() method to look up the code... · 5c35f5e3
      titzer authored 
      Refactor the StackFrameIterator::ComputeType() method to look up the code object (if any) before looking at the magic markers.

This will allow per-code-kind logic more easily in the future (e.g. for WASM).

BUG=

Review URL: https://codereview.chromium.org/1350763004

Cr-Commit-Position: refs/heads/master@{#30912}
      5c35f5e3
    • pierre.langlois's avatar
      [arm] Optimize vcmp when lhs operand is #0.0 · d1472d65
      pierre.langlois authored 
      This patch checks the type of the lhs operand of a floating point
comparison for ARM, and commutes the operands if it is #0.0.  It allows
us to optimize a comparison with zero, as the vcmp instruction
accepts #0.0 as rhs operand.

Code before for "0.0 < 0.123":
------------------------------
movw ip, #29360
movt ip, #37224
movw r9, #31981
movt r9, #16319
vmov d0, ip, r9
mov ip, #0
vmov d1, ip, ip
vcmp.f64 d1, d0
vmrs APSR, FPSCR
bcc +12

Code after:
-----------
movw ip, #29360
movt ip, #37224
movw r9, #31981
movt r9, #16319
vmov d0, ip, r9
vcmp.f64 d0, #0.0
vmrs APSR, FPSCR
bgt +12

BUG=

Review URL: https://codereview.chromium.org/1361913003

Cr-Commit-Position: refs/heads/master@{#30911}
      d1472d65
    • rmcilroy's avatar
      [Interpreter] Add support for loading globals in the interpreter. · 8087c49d
      rmcilroy authored 
      Adds LdaGlobal bytecode and augments BytecodeGenerator to load globals for
global variables and function calls.

Modified TestBytecodeGenerator to add the ability to specify that a bytecode
operand has an unknown value (used so we don't need to figure out the slot
index of a global). Also added a helper which checks equality of BytecodeArray
with the expected snipptets.

Modified TestInterpreter to allow it to take snippets of JS and have the
BytecodeGenerator generate the bytecode rather than having to build a
BytecodeArray manually. This is used to enable the global tests.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1361113002

Cr-Commit-Position: refs/heads/master@{#30910}
      8087c49d
    • martyn.capewell's avatar
      [turbofan] Elide fp32 convert for const compares · 809f6b15
      martyn.capewell authored 
      Reduce operations of the form f64cmp(fp32to64(x), k) to f32cmp(x, k) when k
can be encoded as a 32-bit float.

Review URL: https://codereview.chromium.org/1365623002

Cr-Commit-Position: refs/heads/master@{#30909}
      809f6b15
    • chunyang.dai's avatar
      X87: [es6] Introduce spec compliant IsConstructor. · 11fd60f5
      chunyang.dai authored 
      port 8fe3ac07 (30902).

original commit message:

    There was already a bit on the Map named "function with prototype",
    which basically meant that the Map was a map for a JSFunction that could
    be used as a constructor. Now this CL generalizes that bit to
    IsConstructor, which says that whatever (Heap)Object you are looking at
    can be used as a constructor (i.e. the bit is also set for bound
    functions that can be used as constructors and proxies that have a
    [[Construct]] internal method).

    This way we have a single chokepoint for IsConstructor checking, which
    allows us to get rid of the various ways in which we tried to guess
    whether something could be used as a constructor or not.

    Drive-by-fix: Renamed IsConstructor on FunctionKind to
    IsClassConstructor to resolve the weird name clash, and the
    IsClassConstructor name also matches the spec.

BUG=

Review URL: https://codereview.chromium.org/1362313002

Cr-Commit-Position: refs/heads/master@{#30908}
      11fd60f5
    • chunyang.dai's avatar
      X87: [runtime] Remove weird pushing of something on StackOverflow. · 46d61217
      chunyang.dai authored 
      port 556b522a (r30883)

original commit message:

    We somehow try to push some stuff on the stack when we detect a stack
    overflow, that we don't need. Even worse we might access outside the
    valid stack bounds. Since we don't need this, it's gone.

BUG=

Review URL: https://codereview.chromium.org/1367943002

Cr-Commit-Position: refs/heads/master@{#30907}
      46d61217