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  1. 18 Jul, 2016 1 commit
    • bmeurer's avatar
      [turbofan] Add support for eager/soft deoptimization reasons. · db635d5b
      bmeurer authored 
      So far TurboFan wasn't adding the deoptimization reasons for eager/soft
deoptimization exits that can be used by either the DevTools profiler or
the --trace-deopt flag. This adds basic support for deopt reasons on
Deoptimize, DeoptimizeIf and DeoptimizeUnless nodes and threads through
the reasons to the code generation.

Also moves the DeoptReason to it's own file (to resolve include cycles)
and drops unused reasons.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2161543002
Cr-Commit-Position: refs/heads/master@{#37823}
      db635d5b
  3. 30 Jun, 2016 1 commit
  5. 29 Jun, 2016 1 commit
  7. 27 Jun, 2016 2 commits
  9. 24 Jun, 2016 1 commit
  11. 13 May, 2016 1 commit
  13. 11 May, 2016 1 commit
    • mstarzinger's avatar
      [compiler] Pass inlining_id via relocation info. · 32049620
      mstarzinger authored 
      This passes the inlining_id of deoptimization points via the relocation
info instead of via a side-channel to the CPU profiler. This is one step
towards deprecating the side-channel in question and avoid the need for
performing a lookup of the return address of the deopt point.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/1956693002
Cr-Commit-Position: refs/heads/master@{#36177}
      32049620
  15. 09 May, 2016 1 commit
  17. 16 Mar, 2016 1 commit
    • mbrandy's avatar
      PPC: [wasm] Int64Lowering of Int64Sub. · eb0a2324
      mbrandy authored 
      Port 33c08596

Original commit message:
    Int64Sub is lowered to a new turbofan operator, Int32SubPair. The new
    operator takes 4 inputs an generates 2 outputs. The inputs are the low
    word of the left input, high word of the left input, the low word of the
    right input, and high word of the right input. The ouputs are the low
    and high word of the result of the subtraction.

    The implementation is very similar to the implementation of Int64Add.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1812473002

Cr-Commit-Position: refs/heads/master@{#34821}
      eb0a2324
  19. 15 Mar, 2016 1 commit
    • mbrandy's avatar
      PPC: [wasm] Int64Lowering of Int64Add. · 0548cf49
      mbrandy authored 
      Port 1b230799

Original commit message:
    Int64Add is lowered to a new turbofan operator, Int32AddPair. The new
    operator takes 4 inputs an generates 2 outputs. The inputs are the low
    word of the left input, high word of the left input, the low word of the
    right input, and high word of the right input. The ouputs are the low
    and high word of the result of the addition.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1803113002

Cr-Commit-Position: refs/heads/master@{#34797}
      0548cf49
  21. 02 Mar, 2016 1 commit
    • rmcilroy's avatar
      [Interpreter] Log source positions for bytecode arrays. · d5820158
      rmcilroy authored 
      Add support to log source position offsets to the profiler. As part of
this change PositionsRecorder is split into two, with the subset needed
by log.cc moved into log.h and the remainder kept in assembler.h as
AssemblerPositionsRecorder. The interpreter's source position table
builder is updated to log positions when the profiler is active.

BUG=v8:4766
LOG=N

Review URL: https://codereview.chromium.org/1737043002

Cr-Commit-Position: refs/heads/master@{#34416}
      d5820158
  23. 22 Feb, 2016 1 commit
  25. 17 Feb, 2016 1 commit
  27. 20 Jan, 2016 1 commit
  29. 15 Jan, 2016 3 commits
    • mbrandy's avatar
      PPC: Fix simulator. · b099e861
      mbrandy authored 
      R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1590423002

Cr-Commit-Position: refs/heads/master@{#33343}
      b099e861
    • mbrandy's avatar
      PPC: [Interpreter] Add ForInPrepare runtime function which returns a ObjectTriple. · b2c246e0
      mbrandy authored 
      Port 84f8a506

Original commit message:
    Adds a ForInPrepare Runtime function which returns a triple of
    cache_type, cache_array and cache_length.

    This requires adding support to CEntryStub to call runtime functions
    which return a ObjectTriple - a struct containing three Object*
    pointers. Also did some cleanup of the x64 CEntryStub to avoid
    replicated code.

    Replaces the interpreter's use of the ad-hock InterpreterForInPrepare
    Runtime function with ForInPrepare in preparation for fixing deopt in
    BytecodeGraphBuilder for ForIn (which will be done in a followup CL).

R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1586153004

Cr-Commit-Position: refs/heads/master@{#33342}
      b2c246e0
    • mstarzinger's avatar
      Move SourcePosition into separate header file. · 0aeaf0cb
      mstarzinger authored 
      This splits out the SourcePosition class into a separate header file.
Reason for this refactoring is that said class is mostly used by the
Crankshaft compiler and not needed for all compilers. Also having the
assembler depend on the class creates a dependency cycle.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1581083009

Cr-Commit-Position: refs/heads/master@{#33325}
      0aeaf0cb
  31. 14 Jan, 2016 1 commit
  33. 09 Dec, 2015 1 commit
    • mbrandy's avatar
      PPC64: [turbofan] Changed TruncateFloat64ToInt64 to TryTruncateFloat64ToInt64. · b9f92c15
      mbrandy authored 
      Port 95844d94

Original commit message:
    The new operator provides a second output which indicates whether the
    conversion from float64 to int64 was successful or not. The second
    output returns 0 if the conversion fails. If the conversion succeeds,
    then the second output is differs from 0.

    The second output can be ignored, which means that the operator can be
    used the same way as the original operator.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1515603002

Cr-Commit-Position: refs/heads/master@{#32724}
      b9f92c15
  35. 02 Dec, 2015 1 commit
  37. 27 Nov, 2015 1 commit
  39. 23 Nov, 2015 1 commit
  41. 17 Nov, 2015 1 commit
  43. 11 Nov, 2015 3 commits
  45. 10 Nov, 2015 1 commit
  47. 16 Oct, 2015 1 commit
  49. 07 Oct, 2015 1 commit
  51. 05 Oct, 2015 1 commit
    • mbrandy's avatar
      PPC: Remove register index/code indirection · f53fda63
      mbrandy authored 
      Port 5cf1c0bc

Original commit message:
    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.

R=danno@chromium.org, bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, dstence@us.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1381383002

Cr-Commit-Position: refs/heads/master@{#31114}
      f53fda63
  53. 30 Sep, 2015 1 commit
  55. 07 Aug, 2015 1 commit
  57. 30 Jul, 2015 2 commits
  59. 16 Jul, 2015 1 commit
  61. 14 Jul, 2015 2 commits
    • mbrandy's avatar
      PPC: Limit unbound label tracking to branch references. · 7b1d583d
      mbrandy authored 
      Labels which are not associated with branches (e.g. labels which
record the location of the embedded constant pool or jump tables)
should not be tracked for the purpose of trampoline generation.

This also improves management of the high water mark in the buffer
which triggers trampoline generation such that it is reset whenever
the number of tracked branches drops to zero.

These changes should help minimize unnecessary trampoline and
(subsequent) slow branch generation.

R=dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1237213002

Cr-Commit-Position: refs/heads/master@{#29659}
      7b1d583d
    • yangguo's avatar
      Debugger: make debug code on-stack replacement more robust. · dec11f5e
      yangguo authored 
      The new implemtation counts the number of calls (or continuations)
before the PC to find the corresponding PC in the new code.

R=mstarzinger@chromium.org
BUG=chromium:507070
LOG=N

Review URL: https://codereview.chromium.org/1235603002

Cr-Commit-Position: refs/heads/master@{#29636}
      dec11f5e
  63. 10 Jul, 2015 2 commits