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  1. 20 Jun, 2016 10 commits
    • machenbach's avatar
      Revert of Implement WASM big-endian support (patchset #5 id:80001 of... · 093df3fa
      machenbach authored 
      Revert of Implement WASM big-endian support (patchset #5 id:80001 of https://codereview.chromium.org/2034093002/ )

Reason for revert:
[Sheriff] Speculative revert for crashes on chrubuntu chromebooks:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Arm/builds/320

Original issue's description:
> Implement WASM big-endian support.
>
> Implement WASM support on big-endian platforms. WASM has
> an implicit requirement that it is running on little-endian
> machine. We achieve WASM support on BE by keeping data
> in memory in little-endian order, and changing data
> endianness before storing to memory and after loading from
> memory.
>
> BUG=
>
> Committed: https://crrev.com/d3f3f6c8186b2a53f0c539f7bba0c3708c4d83f9
> Cr-Commit-Position: refs/heads/master@{#37065}

TBR=titzer@chromium.org,akos.palfi@imgtec.com,balazs.kilvady@imgtec.com,jyan@ca.ibm.com,ivica.bogosavljevic@imgtec.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Review-Url: https://codereview.chromium.org/2080153002
Cr-Commit-Position: refs/heads/master@{#37091}
      093df3fa
    • machenbach's avatar
      Revert of [turbofan] Introduce CheckUnless. (patchset #1 id:1 of... · 46c21b2c
      machenbach authored 
      Revert of [turbofan] Introduce CheckUnless. (patchset #1 id:1 of https://codereview.chromium.org/2080113002/ )

Reason for revert:
[Sheriff] Speculative revert: Seems to lead to devtools crashes:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Win/builds/5259

Original issue's description:
> [turbofan] Introduce CheckUnless.
>
> Similarly to CheckIf, CheckUnless is a deoptimization without a specific
> frame state. A frame state is assigned during effect-control linearization
> (and CheckUnless is turned into DeoptimizeUnless).
>
> At the moment, the new operator is only used at one place in native context
> specialization, but we should use it everywhere. The advantage of
> CHeckUnless is that it avoids non-truncating uses of values by frame
> states. This particular change is aimed at Octane's crypto, where this
> enables to turn one NumberMultiply into Int32Mul, and thus improve
> the score by more than 10% (it also needs minus zero truncation and
> typing to be improved, but those CLs are already in flight).
>
> BUG=v8:4470
> R=bmeurer@chromium.org
>
> Committed: https://crrev.com/85fde59d538e0dcaf461108086c2f7cf904f567a
> Cr-Commit-Position: refs/heads/master@{#37085}

TBR=bmeurer@chromium.org,jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4470

Review-Url: https://codereview.chromium.org/2078333002
Cr-Commit-Position: refs/heads/master@{#37090}
      46c21b2c
    • yangguo's avatar
      Simplify AssemblerPositionsRecorder. · 9c3d730d
      yangguo authored 
      R=bmeurer@chromium.org, jgruber@chromium.org

Review-Url: https://codereview.chromium.org/2072963003
Cr-Commit-Position: refs/heads/master@{#37089}
      9c3d730d
    • bmeurer's avatar
      [ieee754] Use uint32_t/uint64_t instead of u_int32_t/u_int64_t. · 3c9ff7ec
      bmeurer authored 
      The uint32_t/uint64_t types are more portable than the old style, pre
C99 u_int32_t/u_int64_t types.

R=yangguo@chromium.org
BUG=v8:5086

Review-Url: https://codereview.chromium.org/2080573002
Cr-Commit-Position: refs/heads/master@{#37088}
      3c9ff7ec
    • bmeurer's avatar
      [builtins] Introduce proper Float64Tan operator. · c87168bc
      bmeurer authored 
      Import base::ieee754::tan() from fdlibm and introduce Float64Tan TurboFan
operator based on that, similar to what we do for Float64Cos and Float64Sin.
Rewrite Math.tan() as TurboFan builtin and use those operators to also
inline Math.tan() into optimized TurboFan functions.

Drive-by-fix: Kill the %_ConstructDouble intrinsics, and provide only
the %ConstructDouble runtime entry for writing tests.

BUG=v8:5086,v8:5126
R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2083453002
Cr-Commit-Position: refs/heads/master@{#37087}
      c87168bc
    • mtrofin's avatar
      [wasm] Separate compilation from instantiation · c1d01aea
      mtrofin authored 
      Compilation of wasm functions happens before instantiation. Imports are linked afterwards, at instantiation time. Globals and memory are also
allocated and then tied in via relocation at instantiation time.

This paves the way for implementing Wasm.compile, a prerequisite to
offering the compiled code serialization feature.

Currently, the WasmModule::Compile method just returns a fixed array
containing the code objects. More appropriate modeling of the compiled module to come.

Opportunistically centralized the logic on how to update memory
references, size, and globals, since that logic is the exact same on each
architecture, except for the actual storing of values back in the
instruction stream.

BUG=v8:5072

Review-Url: https://codereview.chromium.org/2056633002
Cr-Commit-Position: refs/heads/master@{#37086}
      c1d01aea
    • jarin's avatar
      [turbofan] Introduce CheckUnless. · 85fde59d
      jarin authored 
      Similarly to CheckIf, CheckUnless is a deoptimization without a specific
frame state. A frame state is assigned during effect-control linearization
(and CheckUnless is turned into DeoptimizeUnless).

At the moment, the new operator is only used at one place in native context
specialization, but we should use it everywhere. The advantage of
CHeckUnless is that it avoids non-truncating uses of values by frame
states. This particular change is aimed at Octane's crypto, where this
enables to turn one NumberMultiply into Int32Mul, and thus improve
the score by more than 10% (it also needs minus zero truncation and
typing to be improved, but those CLs are already in flight).

BUG=v8:4470
R=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2080113002
Cr-Commit-Position: refs/heads/master@{#37085}
      85fde59d
    • jarin's avatar
      [turbofan] Compute better types for additions with minus zero. · e03c090d
      jarin authored 
      Review-Url: https://codereview.chromium.org/2081553002
Cr-Commit-Position: refs/heads/master@{#37084}
      e03c090d
    • bjaideep's avatar
      PPC/s390: [builtins] Introduce proper Float64Cos and Float64Sin. · f7e7c32d
      bjaideep authored 
      Port c781e831
Port 4d4eb611

Original commit message:

    Import base::ieee754::cos() and base::ieee754::sin() from fdlibm and
    introduce Float64Cos and Float64Sin TurboFan operator based on that,
    similar to what we do for Float64Log. Rewrite Math.cos() and Math.sin()
    as TurboFan builtins and use those operators to also inline Math.cos()
    and Math.sin() into optimized TurboFan functions.

    Unify Atanh, Cbrt and Expm1 as exports from flibm.

R=bmeurer@chromium.org, mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:5086,v8:5118,v8:5103
LOG=N

Review-Url: https://codereview.chromium.org/2078273002
Cr-Commit-Position: refs/heads/master@{#37083}
      f7e7c32d
    • v8-autoroll's avatar
      Update V8 DEPS. · 8e168b06
      v8-autoroll authored 
      Rolling v8/tools/mb to 3d628fb28050a1deef98e3be5d5b37b5fd8ed27f

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://codereview.chromium.org/2079213002
Cr-Commit-Position: refs/heads/master@{#37082}
      8e168b06
  3. 19 Jun, 2016 5 commits
  5. 18 Jun, 2016 4 commits
    • bbudge's avatar
      [Turbofan] Clean up register allocator and verifier code. · d99e1ab6
      bbudge authored 
      - Improves RegisterName display in register allocator.
- Removes GetFixedRegisters method in preparation for having multiple fp
reg types.
- Clean up some verifier code.

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2081443002
Cr-Commit-Position: refs/heads/master@{#37076}
      d99e1ab6
    • bjaideep's avatar
      PPC/s390: [builtins] Always pass target and new target to C++ builtins · 57733bdd
      bjaideep authored 
      Port f5b83dec

Original commit message:

    As a first step towards showing builtin frames in stack traces, we will now
    push target and new target unconditionally.

    Since the various specializations of BuiltinArguments are made redundant by
    this change, we can remove them and all related code.

R=jgruber@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2079073003
Cr-Commit-Position: refs/heads/master@{#37075}
      57733bdd
    • v8-autoroll's avatar
      Update V8 DEPS. · c4d2b191
      v8-autoroll authored 
      Rolling v8/build to d45e523e2428a9500e5d4c9e64d9345e75ac315a

Rolling v8/tools/gyp to c61b0b35c8396bfd59efc6cfc11401d912b0f510

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://codereview.chromium.org/2078163002
Cr-Commit-Position: refs/heads/master@{#37074}
      c4d2b191
    • bjaideep's avatar
      PPC/s390: [builtins] Introduce proper Float64Exp operator. · a54e289e
      bjaideep authored 
      Port d5f2ac5e

Original commit message:

    Import base::ieee754::exp() from FreeBSD msun and introduce a Float64Exp
    TurboFan operator based on that, similar to what we do for Float64Log.
    Rewrite Math.exp() as TurboFan builtin and use that operator to also
    inline Math.exp() into optimized TurboFan functions.

R=bmeurer@chromium.org, mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:3266,v8:3468,v8:3493,v8:5086,v8:5108,chromium:620786
LOG=N

Review-Url: https://codereview.chromium.org/2075263002
Cr-Commit-Position: refs/heads/master@{#37073}
      a54e289e
  7. 17 Jun, 2016 21 commits