1. 13 Aug, 2018 1 commit
  2. 08 Aug, 2018 3 commits
  3. 07 Aug, 2018 1 commit
  4. 03 Aug, 2018 1 commit
  5. 13 Jul, 2018 1 commit
  6. 09 Jul, 2018 1 commit
    • Sigurd Schneider's avatar
      [turbofan] Use relative calls/jumps on arm for builtins · 23dbb81d
      Sigurd Schneider authored
      This CL uses pc-relative jumps and calls (B/BL) for calls from embedded
      builtins to embedded builtins. To make this work, the code range size is
      limited to 32MB on arm during mksnapshot, which ensures that all builtin
      to builtin offsets for jumps/calls fit into the B/BL immediate. At code
      generation time, we put a placeholder into the instruction offset which
      we resolve to the right code object when the code is copied to the heap.
      We use a new relocation mode RELATIVE_CODE_TARGET for these relative jumps.
      The relocation mode RELATIVE_CODE_TARGET should never appear after
      generating the snapshot.
      
      We modify the target_address/set_target_address methods of RelocInfo
      such that they return the absolute target addresses for pc-relative B/BL
      instructions. This ensures that the GC can treat RELATIVE_CODE_TARGET in
      the same way as code targets. This, however, only matters during
      snapshot creation time, and production code never contains
      RELATIVE_CODE_TARGET relocations.
      
      Bug: v8:6666
      Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
      Change-Id: If7eab83ad588859ca87c654a5ddc3e37caea884c
      Reviewed-on: https://chromium-review.googlesource.com/1117181Reviewed-by: 's avatarMichael Starzinger <mstarzinger@chromium.org>
      Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
      Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
      Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54320}
      23dbb81d
  7. 06 Jul, 2018 1 commit
  8. 26 Jun, 2018 6 commits
    • Georg Neis's avatar
      Reland "Reland "Introduce MutableHeapNumber class."" · f1c79e02
      Georg Neis authored
      This is a reland of f0bcbc90.
      A few casts were still wrong.
      
      Original change's description:
      > Reland "Introduce MutableHeapNumber class."
      >
      > This is a reland of 40ac6b18, which
      > was incorrect due to a bad merge.
      >
      > Original change's description:
      > > Introduce MutableHeapNumber class.
      > >
      > > V8 knows heap numbers and mutable heap numbers. They have
      > > difference instance types, but in C++ code we've used the
      > > same class for both (HeapNumber). Confusingly, however,
      > > IsHeapNumber would return false for mutable heap numbers,
      > > while HeapNumber::cast would succeed.
      > >
      > > This CL adds a separate class MutableHeapNumber and
      > > eliminates the confusing behavior.
      > >
      [...]
      > TBR=bmeurer@chromium.org
      > TBR=ulan@chromium.org
      >
      > Change-Id: I3af1014c949821dfac0754a3e48c65ce1bad1ad1
      > Reviewed-on: https://chromium-review.googlesource.com/1114539
      > Reviewed-by: Georg Neis <neis@chromium.org>
      > Commit-Queue: Georg Neis <neis@chromium.org>
      > Cr-Commit-Position: refs/heads/master@{#54022}
      
      Change-Id: I19a33da4b6abcd445b528a84d4f56ba1964d337b
      Reviewed-on: https://chromium-review.googlesource.com/1114100
      Commit-Queue: Georg Neis <neis@chromium.org>
      Reviewed-by: 's avatarBenedikt Meurer <bmeurer@chromium.org>
      Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54027}
      f1c79e02
    • Michael Starzinger's avatar
      [wasm] Remove obsolete code specialization support. · 8ca3d065
      Michael Starzinger authored
      R=clemensh@chromium.org
      
      Change-Id: Id8a0849d3456be1062a065a23f51bac250de4f7d
      Reviewed-on: https://chromium-review.googlesource.com/1107936Reviewed-by: 's avatarClemens Hammacher <clemensh@chromium.org>
      Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54026}
      8ca3d065
    • Georg Neis's avatar
      Revert "Reland "Introduce MutableHeapNumber class."" · 722dfb70
      Georg Neis authored
      This reverts commit f0bcbc90.
      
      Reason for revert: Still failing bots.
      
      Original change's description:
      > Reland "Introduce MutableHeapNumber class."
      > 
      > This is a reland of 40ac6b18, which
      > was incorrect due to a bad merge.
      > 
      > Original change's description:
      > > Introduce MutableHeapNumber class.
      > >
      > > V8 knows heap numbers and mutable heap numbers. They have
      > > difference instance types, but in C++ code we've used the
      > > same class for both (HeapNumber). Confusingly, however,
      > > IsHeapNumber would return false for mutable heap numbers,
      > > while HeapNumber::cast would succeed.
      > >
      > > This CL adds a separate class MutableHeapNumber and
      > > eliminates the confusing behavior.
      > >
      > > TBR=bmeurer@chromium.org
      > >
      > > Change-Id: Id894d177c7fe8cc3f451be80c273b50daee91378
      > > Reviewed-on: https://chromium-review.googlesource.com/1113544
      > > Commit-Queue: Georg Neis <neis@chromium.org>
      > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
      > > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
      > > Cr-Commit-Position: refs/heads/master@{#54012}
      > 
      > TBR=bmeurer@chromium.org
      > TBR=ulanchromium.org
      > 
      > Change-Id: I3af1014c949821dfac0754a3e48c65ce1bad1ad1
      > Reviewed-on: https://chromium-review.googlesource.com/1114539
      > Reviewed-by: Georg Neis <neis@chromium.org>
      > Commit-Queue: Georg Neis <neis@chromium.org>
      > Cr-Commit-Position: refs/heads/master@{#54022}
      
      TBR=ulan@chromium.org,jarin@chromium.org,neis@chromium.org,bmeurer@chromium.org
      
      Change-Id: I99c226e95dfb0b913903cc83193f6e51de8c1b47
      No-Presubmit: true
      No-Tree-Checks: true
      No-Try: true
      Reviewed-on: https://chromium-review.googlesource.com/1114099Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
      Commit-Queue: Georg Neis <neis@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54024}
      722dfb70
    • Georg Neis's avatar
      Reland "Introduce MutableHeapNumber class." · f0bcbc90
      Georg Neis authored
      This is a reland of 40ac6b18, which
      was incorrect due to a bad merge.
      
      Original change's description:
      > Introduce MutableHeapNumber class.
      >
      > V8 knows heap numbers and mutable heap numbers. They have
      > difference instance types, but in C++ code we've used the
      > same class for both (HeapNumber). Confusingly, however,
      > IsHeapNumber would return false for mutable heap numbers,
      > while HeapNumber::cast would succeed.
      >
      > This CL adds a separate class MutableHeapNumber and
      > eliminates the confusing behavior.
      >
      > TBR=bmeurer@chromium.org
      >
      > Change-Id: Id894d177c7fe8cc3f451be80c273b50daee91378
      > Reviewed-on: https://chromium-review.googlesource.com/1113544
      > Commit-Queue: Georg Neis <neis@chromium.org>
      > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
      > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
      > Cr-Commit-Position: refs/heads/master@{#54012}
      
      TBR=bmeurer@chromium.org
      TBR=ulanchromium.org
      
      Change-Id: I3af1014c949821dfac0754a3e48c65ce1bad1ad1
      Reviewed-on: https://chromium-review.googlesource.com/1114539Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
      Commit-Queue: Georg Neis <neis@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54022}
      f0bcbc90
    • Yang Guo's avatar
      Revert "Introduce MutableHeapNumber class." · 983456f5
      Yang Guo authored
      This reverts commit 40ac6b18.
      
      Reason for revert: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20debug/21009
      
      Original change's description:
      > Introduce MutableHeapNumber class.
      > 
      > V8 knows heap numbers and mutable heap numbers. They have
      > difference instance types, but in C++ code we've used the
      > same class for both (HeapNumber). Confusingly, however,
      > IsHeapNumber would return false for mutable heap numbers,
      > while HeapNumber::cast would succeed.
      > 
      > This CL adds a separate class MutableHeapNumber and
      > eliminates the confusing behavior.
      > 
      > TBR=bmeurer@chromium.org
      > 
      > Change-Id: Id894d177c7fe8cc3f451be80c273b50daee91378
      > Reviewed-on: https://chromium-review.googlesource.com/1113544
      > Commit-Queue: Georg Neis <neis@chromium.org>
      > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
      > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
      > Cr-Commit-Position: refs/heads/master@{#54012}
      
      TBR=ulan@chromium.org,jarin@chromium.org,neis@chromium.org,bmeurer@chromium.org
      
      Change-Id: I358a822f20b9110def968e69463a753a2a32c68c
      No-Presubmit: true
      No-Tree-Checks: true
      No-Try: true
      Reviewed-on: https://chromium-review.googlesource.com/1114538Reviewed-by: 's avatarYang Guo <yangguo@chromium.org>
      Commit-Queue: Yang Guo <yangguo@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54013}
      983456f5
    • Georg Neis's avatar
      Introduce MutableHeapNumber class. · 40ac6b18
      Georg Neis authored
      V8 knows heap numbers and mutable heap numbers. They have
      difference instance types, but in C++ code we've used the
      same class for both (HeapNumber). Confusingly, however,
      IsHeapNumber would return false for mutable heap numbers,
      while HeapNumber::cast would succeed.
      
      This CL adds a separate class MutableHeapNumber and
      eliminates the confusing behavior.
      
      TBR=bmeurer@chromium.org
      
      Change-Id: Id894d177c7fe8cc3f451be80c273b50daee91378
      Reviewed-on: https://chromium-review.googlesource.com/1113544
      Commit-Queue: Georg Neis <neis@chromium.org>
      Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
      Reviewed-by: 's avatarJaroslav Sevcik <jarin@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#54012}
      40ac6b18
  9. 21 Jun, 2018 1 commit
  10. 20 Jun, 2018 2 commits
    • Ben L. Titzer's avatar
      [asm] Rework Assembler::IsolateData into Assembler::Options · 4252d53f
      Ben L. Titzer authored
      This CL attempts to simplify the Assembler's dependency on the
      isolate, in particular on a global "serializer_enabled" mode contained
      therein. The "serializer_enabled" condition enabled and disabled
      a number of things in both the assemblers and macro assemblers. To
      make these dependencies explicit, the Assembler::IsolateData is refactored
      to be a proper Assembler::Options struct that controls specific assembler
      behaviors, with default settings easily computable from the isolate.
      
      This also helps make the contract for compiling WASM code more explicit
      (since WASM code needs to have reloc info recorded for external references)
      we can explicitly enable this recording without trying to "trick" the
      assembler using "serializer_enabled".
      
      R=jgruber@chromium.org
      CC=mstarzinger@chromium.org, herhut@chromium.org
      
      Change-Id: I7a8ba49df7b75b292d73ec2aa6e507c27a3d99c8
      Reviewed-on: https://chromium-review.googlesource.com/1105982
      Commit-Queue: Ben Titzer <titzer@chromium.org>
      Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#53890}
      4252d53f
    • Georgia Kouveli's avatar
      [arm64] Remove deopt tables. · cdb2ef01
      Georgia Kouveli authored
      We can instead pass the deopt id in a register, where before we were passing the
      deopt entry address. This removes the need for the deopt tables altogether,
      saving 192kB.
      
      Change-Id: I479d4de1a0245de328720b6b03a1955c8c63f696
      Reviewed-on: https://chromium-review.googlesource.com/1076472Reviewed-by: 's avatarJaroslav Sevcik <jarin@chromium.org>
      Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
      Cr-Commit-Position: refs/heads/master@{#53863}
      cdb2ef01
  11. 04 Jun, 2018 2 commits
  12. 18 Apr, 2018 1 commit
  13. 14 Apr, 2018 1 commit
    • Jakob Kummerow's avatar
      [ubsan] Change Address typedef to uintptr_t · 2459046c
      Jakob Kummerow authored
      The "Address" type is V8's general-purpose type for manipulating memory
      addresses. Per the C++ spec, pointer arithmetic and pointer comparisons
      are undefined behavior except within the same array; since we generally
      don't operate within a C++ array, our general-purpose type shouldn't be
      a pointer type.
      
      Bug: v8:3770
      Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
      Change-Id: Ib96016c24a0f18bcdba916dabd83e3f24a1b5779
      Reviewed-on: https://chromium-review.googlesource.com/988657
      Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
      Reviewed-by: 's avatarLeszek Swirski <leszeks@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#52601}
      2459046c
  14. 04 Apr, 2018 1 commit
  15. 03 Apr, 2018 1 commit
  16. 22 Mar, 2018 1 commit
  17. 21 Feb, 2018 1 commit
  18. 13 Feb, 2018 1 commit
  19. 09 Feb, 2018 1 commit
  20. 31 Jan, 2018 1 commit
  21. 16 Jan, 2018 1 commit
  22. 02 Dec, 2017 1 commit
    • Mathias Bynens's avatar
      Normalize casing of hexadecimal digits · 822be9b2
      Mathias Bynens authored
      This patch normalizes the casing of hexadecimal digits in escape
      sequences of the form `\xNN` and integer literals of the form
      `0xNNNN`.
      
      Previously, the V8 code base used an inconsistent mixture of uppercase
      and lowercase.
      
      Google’s C++ style guide uses uppercase in its examples:
      https://google.github.io/styleguide/cppguide.html#Non-ASCII_Characters
      
      Moreover, uppercase letters more clearly stand out from the lowercase
      `x` (or `u`) characters at the start, as well as lowercase letters
      elsewhere in strings.
      
      BUG=v8:7109
      TBR=marja@chromium.org,titzer@chromium.org,mtrofin@chromium.org,mstarzinger@chromium.org,rossberg@chromium.org,yangguo@chromium.org,mlippautz@chromium.org
      NOPRESUBMIT=true
      
      Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng
      Change-Id: I790e21c25d96ad5d95c8229724eb45d2aa9e22d6
      Reviewed-on: https://chromium-review.googlesource.com/804294
      Commit-Queue: Mathias Bynens <mathias@chromium.org>
      Reviewed-by: 's avatarJakob Kummerow <jkummerow@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#49810}
      822be9b2
  23. 22 Nov, 2017 1 commit
    • Clemens Hammacher's avatar
      Allow move semantics on Labels · eeb32224
      Clemens Hammacher authored
      The Label class currently allows to be copied on all platforms except
      for arm64, where it can not be copied or moved.
      This allows too much though:
      Copying a label even on another platform than arm64 might fail if the
      label was linked already, because only one of the copies will be bound
      later, and the other will fire a DCHECK error in its destructor.
      
      This CL changes the restriction to never allow to copy construct or
      assign a Label, but allow move construction and move assignment on all
      platforms except arm64.
      This will allow to place Labels in containers, as will be done in
      Liftoff (except for arm64, where it still needs to be allocated on the
      heap).
      
      R=mstarzinger@chromium.org
      
      Bug: v8:6600
      Change-Id: Ic1234c2d233317eed6a3d537c13faed2c701fe13
      Reviewed-on: https://chromium-review.googlesource.com/783190
      Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
      Reviewed-by: 's avatarMichael Starzinger <mstarzinger@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#49570}
      eeb32224
  24. 21 Nov, 2017 1 commit
  25. 18 Oct, 2017 1 commit
  26. 13 Oct, 2017 1 commit
  27. 14 Sep, 2017 1 commit
  28. 12 Sep, 2017 1 commit
  29. 11 Sep, 2017 1 commit
  30. 06 Sep, 2017 1 commit
    • Clemens Hammacher's avatar
      [assembler] Make Register et al. real classes · 9e995e12
      Clemens Hammacher authored
      Up to now, each architecture defined all Register types as structs,
      with lots of redundancy. An often found comment noted that they cannot
      be classes due to initialization order problems. As these problems are
      gone with C++11 constexpr constants, I now tried making Registers
      classes again.
      All register types now inherit from RegisterBase, which provides a
      default set of methods and named constructors (like ::from_code,
      code(), bit(), is_valid(), ...).
      This design allows to guarantee an interesting property: Each register
      is either valid, or it's the no_reg register. There are no other
      invalid registers. This is guaranteed statically by the constexpr
      constructor, and dynamically by ::from_code.
      
      I decided to disallow the default constructor completely, so instead of
      "Register reg;" you now need "Register reg = no_reg;". This makes
      explicit how the Register is initialized.
      
      I did this change to the x64, ia32, arm, arm64, mips and mips64 ports.
      Overall, code got much more compact and more safe. In theory, it should
      also increase performance (since the is_valid() check is simpler), but
      this is probably not measurable.
      
      R=mstarzinger@chromium.org
      
      Change-Id: I5ccfa4050daf4e146a557970e9d37fd3d2788d4a
      Reviewed-on: https://chromium-review.googlesource.com/650927Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
      Reviewed-by: 's avatarMichael Starzinger <mstarzinger@chromium.org>
      Reviewed-by: 's avatarIgor Sheludko <ishell@chromium.org>
      Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
      Cr-Commit-Position: refs/heads/master@{#47847}
      9e995e12
  31. 17 Aug, 2017 1 commit