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  1. 08 Jan, 2019 1 commit
  3. 21 Dec, 2018 1 commit
  5. 20 Dec, 2018 1 commit
  7. 12 Nov, 2018 1 commit
  9. 23 Aug, 2018 1 commit
  11. 17 Aug, 2018 1 commit
  13. 16 Aug, 2018 1 commit
  15. 24 Jul, 2018 1 commit
  17. 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
  19. 05 Jul, 2018 1 commit
  21. 22 Jun, 2018 1 commit
  23. 20 Jun, 2018 1 commit
    • 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
  25. 07 Jun, 2018 1 commit
  27. 04 Jun, 2018 1 commit
    • Michael Starzinger's avatar
      [wasm] Make stack check independent of the Isolate. · c96ac82c
      Michael Starzinger authored 
      This makes stack checks in WasmCode independent of the underlying
Isolate by loading the limit address from the WasmInstanceObject instead
of embedding it into the instruction stream. It hence removes the last
use of the Isolate field from WasmGraphBuilder.

Additionally this introduces the notion of a "runtime stub" which
represents stub code global to the NativeModule that can be directly
called from each WasmCode in the same module. These stubs can act as
trampolines via which Isolate-independent WasmCode can enter other V8
builtins or runtime functions that remain Isolate-dependent. They will
eventually replace the current "trampoline" in a NativeModule.

R=titzer@chromium.org
BUG=v8:7424

Change-Id: Ie1f5582ee656b1ab7716ea06316d6e21a0268e74
Reviewed-on: https://chromium-review.googlesource.com/1078732
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: 's avatarClemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53487}
      c96ac82c
  29. 01 Jun, 2018 1 commit
  31. 30 Apr, 2018 1 commit
  33. 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
  35. 09 Apr, 2018 1 commit
  37. 03 Apr, 2018 1 commit
  39. 19 Mar, 2018 1 commit
    • jgruber's avatar
      Reland "[builtins] Remove off-heap builtins from the snapshot" · fd70917d
      jgruber authored 
      This is a reland of f1b1ec70

Original change's description:
> [builtins] Remove off-heap builtins from the snapshot
>
> This CL is the final major step towards shipping off-heap-safe builtins
> embedded into the binary.
>
> Prior to snapshot serialization, we now:
> * create the embedded blob containing off-heap instruction streams,
> * use that to generate embedded.cc (containing embedded binary data),
> * replace off-heap-safe builtins with trampolines,
> * and serialize those into the final snapshot.
>
> The new RelocInfo::OFF_HEAP_TARGET kind is used to fix up trampoline
> targets on deserialization.
>
> Bug: v8:6666
> Change-Id: Ib07aea9e3bd7ecdec42291c1388b3a7453ea96ce
> Reviewed-on: https://chromium-review.googlesource.com/950775
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51960}

TBR=yangguo@chromium.org,mstarzinger@chromium.org

Cq-Include-Trybots: luci.v8.try:v8_mac64_dbg,v8_mac64_rel
Bug: v8:6666
Change-Id: Id9954af3c8195754ff3658c4603858904fcf88c4
Reviewed-on: https://chromium-review.googlesource.com/964481
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52006}
      fd70917d
  41. 15 Mar, 2018 2 commits
  43. 26 Feb, 2018 3 commits
    • Clemens Hammacher's avatar
      Reland "[Assembler][x64] Make Operand immutable" · ecb77978
      Clemens Hammacher authored 
      This is a reland of e7f9fb4a.

Original change's description:
> [Assembler][x64] Make Operand immutable
> 
> This CL removes all setters from the Operand and removes the friendship
> relation between Assembler and Operand. All data fields of the Operand
> are set exactly once in the constructor, the Operand is immutable
> afterwards.
> In order to construct the data of an Operand easily, the OperandBuilder
> is introduced. After building an Operand, the data is copied to the
> const field of the Operand.
> 
> R=mstarzinger@chromium.org
> 
> Bug: v8:7310
> Change-Id: I1628052b8a0c47cbfbc3645dfdac5a0e9705977b
> Reviewed-on: https://chromium-review.googlesource.com/936741
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51563}

Bug: v8:7310
Change-Id: I84df5e11b1811585fbba7309e3bb9c6b17e18c0b
Reviewed-on: https://chromium-review.googlesource.com/936628Reviewed-by: 's avatarMichael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51573}
      ecb77978
    • Clemens Hammacher's avatar
      Revert "[Assembler][x64] Make Operand immutable" · d18125e7
      Clemens Hammacher authored 
      This reverts commit e7f9fb4a.

Reason for revert: msvc compile error: https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20msvc/builds/1573

Original change's description:
> [Assembler][x64] Make Operand immutable
> 
> This CL removes all setters from the Operand and removes the friendship
> relation between Assembler and Operand. All data fields of the Operand
> are set exactly once in the constructor, the Operand is immutable
> afterwards.
> In order to construct the data of an Operand easily, the OperandBuilder
> is introduced. After building an Operand, the data is copied to the
> const field of the Operand.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: v8:7310
> Change-Id: I1628052b8a0c47cbfbc3645dfdac5a0e9705977b
> Reviewed-on: https://chromium-review.googlesource.com/936741
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51563}

TBR=mstarzinger@chromium.org,clemensh@chromium.org

Change-Id: I8ae40de35e81765549f93ffe58f1b12286de6333
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7310
Reviewed-on: https://chromium-review.googlesource.com/936627Reviewed-by: 's avatarClemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51564}
      d18125e7
    • Clemens Hammacher's avatar
      [Assembler][x64] Make Operand immutable · e7f9fb4a
      Clemens Hammacher authored 
      This CL removes all setters from the Operand and removes the friendship
relation between Assembler and Operand. All data fields of the Operand
are set exactly once in the constructor, the Operand is immutable
afterwards.
In order to construct the data of an Operand easily, the OperandBuilder
is introduced. After building an Operand, the data is copied to the
const field of the Operand.

R=mstarzinger@chromium.org

Bug: v8:7310
Change-Id: I1628052b8a0c47cbfbc3645dfdac5a0e9705977b
Reviewed-on: https://chromium-review.googlesource.com/936741Reviewed-by: 's avatarMichael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51563}
      e7f9fb4a
  45. 23 Feb, 2018 1 commit
  47. 13 Feb, 2018 2 commits
  49. 12 Feb, 2018 1 commit
  51. 09 Feb, 2018 1 commit
  53. 30 Jan, 2018 1 commit
  55. 16 Jan, 2018 1 commit
  57. 21 Nov, 2017 1 commit
  59. 18 Oct, 2017 1 commit
  61. 13 Oct, 2017 1 commit
  63. 07 Sep, 2017 2 commits
  65. 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
  67. 24 Aug, 2017 1 commit
  69. 23 Aug, 2017 1 commit
    • Ross McIlroy's avatar
      Reland "[Compiler] Remove code aging support." · 8bf15bf1
      Ross McIlroy authored 
      > This reverts commit 42d3d36b.
> 
> Original change's description:
> > [Compiler] Remove code aging support.
> > 
> > Code aging is no longer supported by any remaining compilers now
> > that full codegen has been removed. This CL removes all vestiges of
> > code aging.
> > 
> > BUG=v8:6409
> > 
> > Change-Id: I945ebcc20c7c55120550c8ee36188bfa042ea65e
> > Reviewed-on: https://chromium-review.googlesource.com/619153
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Yang Guo <yangguo@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Reviewed-by: Marja Hölttä <marja@chromium.org>
> > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#47501}
> 
> TBR=ulan@chromium.org,rmcilroy@chromium.org,marja@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,rodolph.perfetta@arm.com
> 
> Change-Id: I9d8b2985e2d472697908270d93a35eb7ef9c88a8
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: v8:6409
> Reviewed-on: https://chromium-review.googlesource.com/625998
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47506}

TBR=ulan@chromium.org,rmcilroy@chromium.org,marja@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,rodolph.perfetta@arm.com

Change-Id: I68785c6be7686e874b3848103e3a34483eaeb519
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6409
Reviewed-on: https://chromium-review.googlesource.com/625919Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
Reviewed-by: 's avatarYang Guo <yangguo@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47535}
      8bf15bf1